feat(server): Server.openapi() backed by HttpApi spec

Switch the OpenAPI document used by the SDK build (and `bun dev generate`) from the legacy Hono backend to `OpenApi.fromApi(PublicApi)`. The Effect HttpApi backend already covers every Hono route — the bridge test in `httpapi-bridge.test.ts` audits this — and `PublicApi` already applies the legacy-shape transforms (instance query params, optional-null stripping, SSE schemas, component renames). The spec-emitting path was the last piece still rooted in Hono. The Hono path is preserved as `Server.openapiHono()` and `bun dev generate --hono` so reviewers can diff the two outputs while the Hono backend lingers; both go away with the Hono backend itself. Verified the new default matches the previous `--httpapi` output byte-for-byte and the SDK build round-trips cleanly.
refactor(cli/providers): Stage 4 — drop inline AppRuntime.runPromise calls (#25532 )
2026-05-03 15:21:31 +08:00 · 2026-05-03 00:05:57 -04:00 · 2026-05-02 23:42:40 -04:00 · 2026-05-02 23:40:59 -04:00 · 2026-05-02 22:36:02 -05:00 · 2026-05-03 03:25:46 +00:00
282 changed files with 25571 additions and 12622 deletions
--- a/README.md
+++ b/README.md
@@ -132,7 +132,7 @@ It's very similar to Claude Code in terms of capability. Here are the key differ

 - 100% open source
 - Not coupled to any provider. Although we recommend the models we provide through [OpenCode Zen](https://opencode.ai/zen), OpenCode can be used with Claude, OpenAI, Google, or even local models. As models evolve, the gaps between them will close and pricing will drop, so being provider-agnostic is important.
- Out-of-the-box LSP support
+- Built-in opt-in LSP support
 - A focus on TUI. OpenCode is built by neovim users and the creators of [terminal.shop](https://terminal.shop); we are going to push the limits of what's possible in the terminal.
 - A client/server architecture. This, for example, can allow OpenCode to run on your computer while you drive it remotely from a mobile app, meaning that the TUI frontend is just one of the possible clients.

--- a/bun.lock
+++ b/bun.lock
@@ -29,7 +29,7 @@
    },
    "packages/app": {
      "name": "@opencode-ai/app",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode-ai/core": "workspace:*",
@@ -85,7 +85,7 @@
    },
    "packages/console/app": {
      "name": "@opencode-ai/console-app",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@ibm/plex": "6.4.1",
@@ -119,7 +119,7 @@
    },
    "packages/console/core": {
      "name": "@opencode-ai/console-core",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@aws-sdk/client-sts": "3.782.0",
        "@jsx-email/render": "1.1.1",
@@ -146,7 +146,7 @@
    },
    "packages/console/function": {
      "name": "@opencode-ai/console-function",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@ai-sdk/anthropic": "3.0.64",
        "@ai-sdk/openai": "3.0.48",
@@ -170,7 +170,7 @@
    },
    "packages/console/mail": {
      "name": "@opencode-ai/console-mail",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@jsx-email/all": "2.2.3",
        "@jsx-email/cli": "1.4.3",
@@ -194,7 +194,7 @@
    },
    "packages/core": {
      "name": "@opencode-ai/core",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "bin": {
        "opencode": "./bin/opencode",
      },
@@ -228,7 +228,7 @@
    },
    "packages/desktop": {
      "name": "@opencode-ai/desktop",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@opencode-ai/app": "workspace:*",
        "@opencode-ai/ui": "workspace:*",
@@ -263,7 +263,7 @@
    },
    "packages/desktop-electron": {
      "name": "@opencode-ai/desktop-electron",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "drizzle-orm": "catalog:",
        "effect": "catalog:",
@@ -309,7 +309,7 @@
    },
    "packages/enterprise": {
      "name": "@opencode-ai/enterprise",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@opencode-ai/core": "workspace:*",
        "@opencode-ai/ui": "workspace:*",
@@ -338,7 +338,7 @@
    },
    "packages/function": {
      "name": "@opencode-ai/function",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@octokit/auth-app": "8.0.1",
        "@octokit/rest": "catalog:",
@@ -354,7 +354,7 @@
    },
    "packages/opencode": {
      "name": "opencode",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "bin": {
        "opencode": "./bin/opencode",
      },
@@ -496,7 +496,7 @@
    },
    "packages/plugin": {
      "name": "@opencode-ai/plugin",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@opencode-ai/sdk": "workspace:*",
        "effect": "catalog:",
@@ -511,8 +511,8 @@
        "typescript": "catalog:",
      },
      "peerDependencies": {
-        "@opentui/core": ">=0.2.0",
-        "@opentui/solid": ">=0.2.0",
+        "@opentui/core": ">=0.2.2",
+        "@opentui/solid": ">=0.2.2",
      },
      "optionalPeers": [
        "@opentui/core",
@@ -531,7 +531,7 @@
    },
    "packages/sdk/js": {
      "name": "@opencode-ai/sdk",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "cross-spawn": "catalog:",
      },
@@ -546,7 +546,7 @@
    },
    "packages/slack": {
      "name": "@opencode-ai/slack",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@opencode-ai/sdk": "workspace:*",
        "@slack/bolt": "^3.17.1",
@@ -581,7 +581,7 @@
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    "packages/ui": {
      "name": "@opencode-ai/ui",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode-ai/core": "workspace:*",
@@ -630,7 +630,7 @@
    },
    "packages/web": {
      "name": "@opencode-ai/web",
-      "version": "1.14.31",
+      "version": "1.14.33",
      "dependencies": {
        "@astrojs/cloudflare": "12.6.3",
        "@astrojs/markdown-remark": "6.3.1",
@@ -690,8 +690,8 @@
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@@ -715,7 +715,7 @@
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+    "effect": "4.0.0-beta.59",
    "fuzzysort": "3.1.0",
    "hono": "4.10.7",
    "hono-openapi": "1.1.2",
@@ -1618,21 +1618,21 @@

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+    "effect": ["effect@4.0.0-beta.59", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "fast-check": "^4.6.0", "find-my-way-ts": "^0.1.6", "ini": "^6.0.0", "kubernetes-types": "^1.30.0", "msgpackr": "^1.11.9", "multipasta": "^0.2.7", "toml": "^4.1.1", "uuid": "^13.0.0", "yaml": "^2.8.3" } }, "sha512-xyUDLeHSe8d6lWGOvR6Fgn2HL6gYeTZ/S4Jzk9uc4ZUxMPPsNZlNXrvk0C7/utQFzeX7uAWcVnG2BjbA0SRoAA=="],

    "ejs": ["ejs@3.1.10", "", { "dependencies": { "jake": "^10.8.5" }, "bin": { "ejs": "bin/cli.js" } }, "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA=="],

@@ -4204,7 +4204,7 @@

    "pagefind": ["pagefind@1.5.2", "", { "optionalDependencies": { "@pagefind/darwin-arm64": "1.5.2", "@pagefind/darwin-x64": "1.5.2", "@pagefind/freebsd-x64": "1.5.2", "@pagefind/linux-arm64": "1.5.2", "@pagefind/linux-x64": "1.5.2", "@pagefind/windows-arm64": "1.5.2", "@pagefind/windows-x64": "1.5.2" }, "bin": { "pagefind": "lib/runner/bin.cjs" } }, "sha512-XTUaK0hXMCu2jszWE584JGQT7y284TmMV9l/HX3rnG5uo3rHI/uHU56XTyyyPFjeWEBxECbAi0CaFDJOONtG0Q=="],

-    "pako": ["pako@1.0.11", "", {}, "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw=="],
+    "pako": ["pako@0.2.9", "", {}, "sha512-NUcwaKxUxWrZLpDG+z/xZaCgQITkA/Dv4V/T6bw7VON6l1Xz/VnrBqrYjZQ12TamKHzITTfOEIYUj48y2KXImA=="],

    "param-case": ["param-case@3.0.4", "", { "dependencies": { "dot-case": "^3.0.4", "tslib": "^2.0.3" } }, "sha512-RXlj7zCYokReqWpOPH9oYivUzLYZ5vAPIfEmCTNViosC78F8F0H9y7T7gG2M39ymgutxF5gcFEsyZQSph9Bp3A=="],

@@ -5640,6 +5640,8 @@

    "@opencode-ai/web/@shikijs/transformers": ["@shikijs/transformers@3.20.0", "", { "dependencies": { "@shikijs/core": "3.20.0", "@shikijs/types": "3.20.0" } }, "sha512-PrHHMRr3Q5W1qB/42kJW6laqFyWdhrPF2hNR9qjOm1xcSiAO3hAHo7HaVyHE6pMyevmy3i51O8kuGGXC78uK3g=="],

+    "@opentui/core/diff": ["diff@9.0.0", "", {}, "sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw=="],
+
    "@opentui/solid/@babel/core": ["@babel/core@7.28.0", "", { "dependencies": { "@ampproject/remapping": "^2.2.0", "@babel/code-frame": "^7.27.1", "@babel/generator": "^7.28.0", "@babel/helper-compilation-targets": "^7.27.2", "@babel/helper-module-transforms": "^7.27.3", "@babel/helpers": "^7.27.6", "@babel/parser": "^7.28.0", "@babel/template": "^7.27.2", "@babel/traverse": "^7.28.0", "@babel/types": "^7.28.0", "convert-source-map": "^2.0.0", "debug": "^4.1.0", "gensync": "^1.0.0-beta.2", "json5": "^2.2.3", "semver": "^6.3.1" } }, "sha512-UlLAnTPrFdNGoFtbSXwcGFQBtQZJCNjaN6hQNP3UPvuNXT1i82N26KL3dZeIpNalWywr9IuQuncaAfUaS1g6sQ=="],

    "@oslojs/jwt/@oslojs/encoding": ["@oslojs/encoding@0.4.1", "", {}, "sha512-hkjo6MuIK/kQR5CrGNdAPZhS01ZCXuWDRJ187zh6qqF2+yMHZpD9fAYpX8q2bOO6Ryhl3XpCT6kUX76N8hhm4Q=="],
@@ -6122,8 +6124,6 @@

    "type-is/mime-types": ["mime-types@2.1.35", "", { "dependencies": { "mime-db": "1.52.0" } }, "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw=="],

-    "unicode-trie/pako": ["pako@0.2.9", "", {}, "sha512-NUcwaKxUxWrZLpDG+z/xZaCgQITkA/Dv4V/T6bw7VON6l1Xz/VnrBqrYjZQ12TamKHzITTfOEIYUj48y2KXImA=="],
-
    "unifont/ofetch": ["ofetch@1.5.1", "", { "dependencies": { "destr": "^2.0.5", "node-fetch-native": "^1.6.7", "ufo": "^1.6.1" } }, "sha512-2W4oUZlVaqAPAil6FUg/difl6YhqhUR7x2eZY4bQCko22UXg3hptq9KLQdqFClV+Wu85UX7hNtdGTngi/1BxcA=="],

    "unplugin/chokidar": ["chokidar@3.6.0", "", { "dependencies": { "anymatch": "~3.1.2", "braces": "~3.0.2", "glob-parent": "~5.1.2", "is-binary-path": "~2.1.0", "is-glob": "~4.0.1", "normalize-path": "~3.0.0", "readdirp": "~3.6.0" }, "optionalDependencies": { "fsevents": "~2.3.2" } }, "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw=="],
@@ -6132,6 +6132,8 @@

    "uri-js/punycode": ["punycode@2.3.1", "", {}, "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg=="],

+    "utif2/pako": ["pako@1.0.11", "", {}, "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw=="],
+
    "venice-ai-sdk-provider/@ai-sdk/openai-compatible": ["@ai-sdk/openai-compatible@2.0.41", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.23" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-kNAGINk71AlOXx10Dq/PXw4t/9XjdK8uxfpVElRwtSFMdeSiLVt58p9TPx4/FJD+hxZuVhvxYj9r42osxWq79g=="],

    "vite-plugin-icons-spritesheet/glob": ["glob@11.1.0", "", { "dependencies": { "foreground-child": "^3.3.1", "jackspeak": "^4.1.1", "minimatch": "^10.1.1", "minipass": "^7.1.2", "package-json-from-dist": "^1.0.0", "path-scurry": "^2.0.0" }, "bin": { "glob": "dist/esm/bin.mjs" } }, "sha512-vuNwKSaKiqm7g0THUBu2x7ckSs3XJLXE+2ssL7/MfTGPLLcrJQ/4Uq1CjPTtO5cCIiRxqvN6Twy1qOwhL0Xjcw=="],
@@ -6798,7 +6800,7 @@

    "opentui-spinner/@opentui/core/@opentui/core-win32-x64": ["@opentui/core-win32-x64@0.1.105", "", { "os": "win32", "cpu": "x64" }, "sha512-f9FqqUmxehwhF+cgyazm0YT0v0BYTTCPzd6eztqhl74N3x/kC+jOOz2rdJDC/tTBo1JVsF64KupOnhIs6/Cogg=="],

-    "opentui-spinner/@opentui/core/bun-webgpu": ["bun-webgpu@0.1.5", "", { "dependencies": { "@webgpu/types": "^0.1.60" }, "optionalDependencies": { "bun-webgpu-darwin-arm64": "^0.1.5", "bun-webgpu-darwin-x64": "^0.1.5", "bun-webgpu-linux-x64": "^0.1.5", "bun-webgpu-win32-x64": "^0.1.5" } }, "sha512-91/K6S5whZKX7CWAm9AylhyKrLGRz6BUiiPiM/kXadSnD4rffljCD/q9cNFftm5YXhx4MvLqw33yEilxogJvwA=="],
+    "opentui-spinner/@opentui/core/bun-ffi-structs": ["bun-ffi-structs@0.1.2", "", { "peerDependencies": { "typescript": "^5" } }, "sha512-Lh1oQAYHDcnesJauieA4UNkWGXY9hYck7OA5IaRwE3Bp6K2F2pJSNYqq+hIy7P3uOvo3km3oxS8304g5gDMl/w=="],

    "opentui-spinner/@opentui/solid/@babel/core": ["@babel/core@7.28.0", "", { "dependencies": { "@ampproject/remapping": "^2.2.0", "@babel/code-frame": "^7.27.1", "@babel/generator": "^7.28.0", "@babel/helper-compilation-targets": "^7.27.2", "@babel/helper-module-transforms": "^7.27.3", "@babel/helpers": "^7.27.6", "@babel/parser": "^7.28.0", "@babel/template": "^7.27.2", "@babel/traverse": "^7.28.0", "@babel/types": "^7.28.0", "convert-source-map": "^2.0.0", "debug": "^4.1.0", "gensync": "^1.0.0-beta.2", "json5": "^2.2.3", "semver": "^6.3.1" } }, "sha512-UlLAnTPrFdNGoFtbSXwcGFQBtQZJCNjaN6hQNP3UPvuNXT1i82N26KL3dZeIpNalWywr9IuQuncaAfUaS1g6sQ=="],

@@ -7158,16 +7160,6 @@

    "opencontrol/@modelcontextprotocol/sdk/express/type-is": ["type-is@2.0.1", "", { "dependencies": { "content-type": "^1.0.5", "media-typer": "^1.1.0", "mime-types": "^3.0.0" } }, "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw=="],

-    "opentui-spinner/@opentui/core/bun-webgpu/@webgpu/types": ["@webgpu/types@0.1.69", "", {}, "sha512-RPmm6kgRbI8e98zSD3RVACvnuktIja5+yLgDAkTmxLr90BEwdTXRQWNLF3ETTTyH/8mKhznZuN5AveXYFEsMGQ=="],
-
-    "opentui-spinner/@opentui/core/bun-webgpu/bun-webgpu-darwin-arm64": ["bun-webgpu-darwin-arm64@0.1.6", "", { "os": "darwin", "cpu": "arm64" }, "sha512-lIsDkPzJzPl6yrB5CUOINJFPnTRv6fF/Q8J1mAr43ogSp86WZEg9XZKaT6f3EUJ+9ETogGoMnoj1q0AwHUTbAQ=="],
-
-    "opentui-spinner/@opentui/core/bun-webgpu/bun-webgpu-darwin-x64": ["bun-webgpu-darwin-x64@0.1.6", "", { "os": "darwin", "cpu": "x64" }, "sha512-uEddf5U7GvKIkM/BV18rUKtYHL6d0KeqBjNHwfqDH9QgEo9KVSKvJXS5I/sMefk5V5pIYE+8tQhtrREevhocng=="],
-
-    "opentui-spinner/@opentui/core/bun-webgpu/bun-webgpu-linux-x64": ["bun-webgpu-linux-x64@0.1.6", "", { "os": "linux", "cpu": "x64" }, "sha512-Y/f15j9r8ba0xUz+3lATtS74OE+PPzQXO7Do/1eCluJcuOlfa77kMjvBK/ShWnem3Y9xqi59pebTPOGRB+CaJA=="],
-
-    "opentui-spinner/@opentui/core/bun-webgpu/bun-webgpu-win32-x64": ["bun-webgpu-win32-x64@0.1.6", "", { "os": "win32", "cpu": "x64" }, "sha512-MHSFAKqizISb+C5NfDrFe3g0Al5Njnu0j/A+oO2Q+bIWX+fUYjBSowiYE1ZXJx65KuryuB+tiM7Qh6cQbVvkEg=="],
-
    "opentui-spinner/@opentui/solid/@babel/core/semver": ["semver@6.3.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="],

    "ora/bl/buffer/ieee754": ["ieee754@1.2.1", "", {}, "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA=="],
--- a/nix/hashes.json
+++ b/nix/hashes.json
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-OtyfKTBEHsJpjzAjN9vCR0PzGzdK6CDHdyU7eZ6Gl1s=",
-    "aarch64-linux": "sha256-3eHJs3S/+uDUPAouWPsdBOlEvAOhOYx5bJzahL0tAJk=",
-    "aarch64-darwin": "sha256-rFXzrkhPVb3yM20J8R8m7GqroNNk1vAEz+o/Ks+iAI4=",
-    "x86_64-darwin": "sha256-lb1IGgbpxg723Qxj2WVPkxKUUmyOIsFOAhA5LoZ8GwY="
+    "x86_64-linux": "sha256-9wTDLZsuGjkWyVOb6AG2VRYPiaSj/lnXwVkSwNeDcns=",
+    "aarch64-linux": "sha256-gmKlL2fQxY8bo+//8m9e1TNYJK3RXa4i8xsgtd046bc=",
+    "aarch64-darwin": "sha256-ENSJK+7rZi3m342mjtGg9N0P6zWEypXMpI7QdFMydbc=",
+    "x86_64-darwin": "sha256-gkxCxGh5dlwj03vZdz20pbiAwFEDpAlu/5iU8cwZOGI="
  }
 }
--- a/nix/node_modules.nix
+++ b/nix/node_modules.nix
@@ -55,7 +55,6 @@ stdenvNoCC.mkDerivation {
      --filter './packages/opencode' \
      --filter './packages/desktop' \
      --filter './packages/app' \
-      --filter './packages/shared' \
      --frozen-lockfile \
      --ignore-scripts \
      --no-progress
--- a/package.json
+++ b/package.json
@@ -34,8 +34,8 @@
      "@types/cross-spawn": "6.0.6",
      "@octokit/rest": "22.0.0",
      "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.2.0",
-      "@opentui/solid": "0.2.0",
+      "@opentui/core": "0.2.2",
+      "@opentui/solid": "0.2.2",
      "ulid": "3.0.1",
      "@kobalte/core": "0.13.11",
      "@types/luxon": "3.7.1",
@@ -53,7 +53,7 @@
      "dompurify": "3.3.1",
      "drizzle-kit": "1.0.0-beta.19-d95b7a4",
      "drizzle-orm": "1.0.0-beta.19-d95b7a4",
-      "effect": "4.0.0-beta.57",
+      "effect": "4.0.0-beta.59",
      "ai": "6.0.168",
      "cross-spawn": "7.0.6",
      "hono": "4.10.7",
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/app",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "description": "",
  "type": "module",
  "exports": {
--- a/packages/console/app/package.json
+++ b/packages/console/app/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-app",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "type": "module",
  "license": "MIT",
  "scripts": {
--- a/packages/console/core/package.json
+++ b/packages/console/core/package.json
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode-ai/console-core",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "private": true,
  "type": "module",
  "license": "MIT",
--- a/packages/console/function/package.json
+++ b/packages/console/function/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-function",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "$schema": "https://json.schemastore.org/package.json",
  "private": true,
  "type": "module",
--- a/packages/console/mail/package.json
+++ b/packages/console/mail/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-mail",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "dependencies": {
    "@jsx-email/all": "2.2.3",
    "@jsx-email/cli": "1.4.3",
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "name": "@opencode-ai/core",
  "type": "module",
  "license": "MIT",
--- a/packages/core/src/flag/flag.ts
+++ b/packages/core/src/flag/flag.ts
@@ -1,4 +1,5 @@
 import { Config } from "effect"
+import { InstallationChannel } from "../installation/version"

 function truthy(key: string) {
  const value = process.env[key]?.toLowerCase()
@@ -10,6 +11,10 @@ function falsy(key: string) {
  return value === "false" || value === "0"
 }

+// Channels that default to the new effect-httpapi server backend. The legacy
+// hono backend remains the default for stable (`prod`/`latest`) installs.
+const HTTPAPI_DEFAULT_ON_CHANNELS = new Set(["dev", "beta", "local"])
+
 function number(key: string) {
  const value = process.env[key]
  if (!value) return undefined
@@ -81,8 +86,16 @@ export const Flag = {
  OPENCODE_STRICT_CONFIG_DEPS: truthy("OPENCODE_STRICT_CONFIG_DEPS"),

  OPENCODE_WORKSPACE_ID: process.env["OPENCODE_WORKSPACE_ID"],
-  OPENCODE_EXPERIMENTAL_HTTPAPI: truthy("OPENCODE_EXPERIMENTAL_HTTPAPI"),
+  // Defaults to true on dev/beta/local channels so internal users exercise the
+  // new effect-httpapi server backend. Stable (`prod`/`latest`) installs stay
+  // on the legacy hono backend until the rollout is complete. An explicit env
+  // var ("true"/"1" or "false"/"0") always wins, providing an opt-in for
+  // stable users and an escape hatch for dev/beta users.
+  OPENCODE_EXPERIMENTAL_HTTPAPI:
+    truthy("OPENCODE_EXPERIMENTAL_HTTPAPI") ||
+    (!falsy("OPENCODE_EXPERIMENTAL_HTTPAPI") && HTTPAPI_DEFAULT_ON_CHANNELS.has(InstallationChannel)),
  OPENCODE_EXPERIMENTAL_WORKSPACES: OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_WORKSPACES"),
+  OPENCODE_EXPERIMENTAL_EVENT_SYSTEM: OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_EVENT_SYSTEM"),

  // Evaluated at access time (not module load) because tests, the CLI, and
  // external tooling set these env vars at runtime.
--- a/packages/core/src/util/log.ts
+++ b/packages/core/src/util/log.ts
@@ -1,3 +1,5 @@
+export * as Log from "./log"
+
 import path from "path"
 import fs from "fs/promises"
 import { createWriteStream } from "fs"
--- a/packages/desktop-electron/package.json
+++ b/packages/desktop-electron/package.json
@@ -1,7 +1,7 @@
 {
  "name": "@opencode-ai/desktop-electron",
  "private": true,
-  "version": "1.14.31",
+  "version": "1.14.33",
  "type": "module",
  "license": "MIT",
  "homepage": "https://opencode.ai",
--- a/packages/desktop-electron/src/renderer/webview-zoom.ts
+++ b/packages/desktop-electron/src/renderer/webview-zoom.ts
@@ -26,13 +26,20 @@ const applyZoom = (next: number) => {
 window.addEventListener("keydown", (event) => {
  if (!(OS_NAME === "macos" ? event.metaKey : event.ctrlKey)) return

-  let newZoom = webviewZoom()
-
-  if (event.key === "-") newZoom -= 0.2
-  if (event.key === "=" || event.key === "+") newZoom += 0.2
-  if (event.key === "0") newZoom = 1
-
-  applyZoom(clamp(newZoom))
+  if (event.key === "-") {
+    event.preventDefault()
+    applyZoom(clamp(webviewZoom() - 0.2))
+    return
+  }
+  if (event.key === "=" || event.key === "+") {
+    event.preventDefault()
+    applyZoom(clamp(webviewZoom() + 0.2))
+    return
+  }
+  if (event.key === "0") {
+    event.preventDefault()
+    applyZoom(1)
+  }
 })

 export { webviewZoom }
--- a/packages/desktop/package.json
+++ b/packages/desktop/package.json
@@ -1,7 +1,7 @@
 {
  "name": "@opencode-ai/desktop",
  "private": true,
-  "version": "1.14.31",
+  "version": "1.14.33",
  "type": "module",
  "license": "MIT",
  "scripts": {
--- a/packages/enterprise/package.json
+++ b/packages/enterprise/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/enterprise",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "private": true,
  "type": "module",
  "license": "MIT",
--- a/packages/extensions/zed/extension.toml
+++ b/packages/extensions/zed/extension.toml
@@ -1,7 +1,7 @@
 id = "opencode"
 name = "OpenCode"
 description = "The open source coding agent."
-version = "1.14.31"
+version = "1.14.33"
 schema_version = 1
 authors = ["Anomaly"]
 repository = "https://github.com/anomalyco/opencode"
@@ -11,26 +11,26 @@ name = "OpenCode"
 icon = "./icons/opencode.svg"

 [agent_servers.opencode.targets.darwin-aarch64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.31/opencode-darwin-arm64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.33/opencode-darwin-arm64.zip"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.darwin-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.31/opencode-darwin-x64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.33/opencode-darwin-x64.zip"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.linux-aarch64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.31/opencode-linux-arm64.tar.gz"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.33/opencode-linux-arm64.tar.gz"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.linux-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.31/opencode-linux-x64.tar.gz"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.33/opencode-linux-x64.tar.gz"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.windows-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.31/opencode-windows-x64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.14.33/opencode-windows-x64.zip"
 cmd = "./opencode.exe"
 args = ["acp"]
--- a/packages/function/package.json
+++ b/packages/function/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/function",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "$schema": "https://json.schemastore.org/package.json",
  "private": true,
  "type": "module",
--- a/packages/opencode/migration/20260427172553_slow_nightmare/migration.sql
+++ b/packages/opencode/migration/20260427172553_slow_nightmare/migration.sql
@@ -0,0 +1,17 @@
+CREATE TABLE `session_message` (
+	`id` text PRIMARY KEY,
+	`session_id` text NOT NULL,
+	`type` text NOT NULL,
+	`time_created` integer NOT NULL,
+	`time_updated` integer NOT NULL,
+	`data` text NOT NULL,
+	CONSTRAINT `fk_session_message_session_id_session_id_fk` FOREIGN KEY (`session_id`) REFERENCES `session`(`id`) ON DELETE CASCADE
+);
+--> statement-breakpoint
+DROP INDEX IF EXISTS `session_entry_session_idx`;--> statement-breakpoint
+DROP INDEX IF EXISTS `session_entry_session_type_idx`;--> statement-breakpoint
+DROP INDEX IF EXISTS `session_entry_time_created_idx`;--> statement-breakpoint
+CREATE INDEX `session_message_session_idx` ON `session_message` (`session_id`);--> statement-breakpoint
+CREATE INDEX `session_message_session_type_idx` ON `session_message` (`session_id`,`type`);--> statement-breakpoint
+CREATE INDEX `session_message_time_created_idx` ON `session_message` (`time_created`);--> statement-breakpoint
+DROP TABLE `session_entry`;
--- a/packages/opencode/migration/20260427172553_slow_nightmare/snapshot.json
+++ b/packages/opencode/migration/20260427172553_slow_nightmare/snapshot.json
--- a/packages/opencode/migration/20260428004200_add_session_path/snapshot.json
+++ b/packages/opencode/migration/20260428004200_add_session_path/snapshot.json
@@ -2,7 +2,7 @@
  "version": "7",
  "dialect": "sqlite",
  "id": "aaa2ebeb-caa4-478d-8365-4fc595d16856",
-  "prevIds": ["66cbe0d7-def0-451b-b88a-7608513a9b44"],
+  "prevIds": ["61f807f9-6398-4067-be05-804acc2561bc"],
  "ddl": [
    {
      "name": "account_state",
@@ -37,7 +37,7 @@
      "entityType": "tables"
    },
    {
-      "name": "session_entry",
+      "name": "session_message",
      "entityType": "tables"
    },
    {
@@ -598,7 +598,7 @@
      "generated": null,
      "name": "id",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "text",
@@ -608,7 +608,7 @@
      "generated": null,
      "name": "session_id",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "text",
@@ -618,7 +618,7 @@
      "generated": null,
      "name": "type",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "integer",
@@ -628,7 +628,7 @@
      "generated": null,
      "name": "time_created",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "integer",
@@ -638,7 +638,7 @@
      "generated": null,
      "name": "time_updated",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "text",
@@ -648,7 +648,7 @@
      "generated": null,
      "name": "data",
      "entityType": "columns",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "type": "text",
@@ -1112,9 +1112,9 @@
      "onUpdate": "NO ACTION",
      "onDelete": "CASCADE",
      "nameExplicit": false,
-      "name": "fk_session_entry_session_id_session_id_fk",
+      "name": "fk_session_message_session_id_session_id_fk",
      "entityType": "fks",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "columns": ["project_id"],
@@ -1226,8 +1226,8 @@
    {
      "columns": ["id"],
      "nameExplicit": false,
-      "name": "session_entry_pk",
-      "table": "session_entry",
+      "name": "session_message_pk",
+      "table": "session_message",
      "entityType": "pks"
    },
    {
@@ -1322,9 +1322,9 @@
      "isUnique": false,
      "where": null,
      "origin": "manual",
-      "name": "session_entry_session_idx",
+      "name": "session_message_session_idx",
      "entityType": "indexes",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "columns": [
@@ -1340,9 +1340,9 @@
      "isUnique": false,
      "where": null,
      "origin": "manual",
-      "name": "session_entry_session_type_idx",
+      "name": "session_message_session_type_idx",
      "entityType": "indexes",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "columns": [
@@ -1354,9 +1354,9 @@
      "isUnique": false,
      "where": null,
      "origin": "manual",
-      "name": "session_entry_time_created_idx",
+      "name": "session_message_time_created_idx",
      "entityType": "indexes",
-      "table": "session_entry"
+      "table": "session_message"
    },
    {
      "columns": [
--- a/packages/opencode/migration/20260501142318_next_venus/migration.sql
+++ b/packages/opencode/migration/20260501142318_next_venus/migration.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `session` ADD `agent` text;--> statement-breakpoint
+ALTER TABLE `session` ADD `model` text;
--- a/packages/opencode/migration/20260501142318_next_venus/snapshot.json
+++ b/packages/opencode/migration/20260501142318_next_venus/snapshot.json
--- a/packages/opencode/package.json
+++ b/packages/opencode/package.json
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "1.14.31",
+  "version": "1.14.33",
  "name": "opencode",
  "type": "module",
  "license": "MIT",
--- a/packages/opencode/script/build.ts
+++ b/packages/opencode/script/build.ts
@@ -61,6 +61,7 @@ const createEmbeddedWebUIBundle = async () => {
  await $`bun run --cwd ${appDir} build`
  const files = (await Array.fromAsync(new Bun.Glob("**/*").scan({ cwd: dist })))
    .map((file) => file.replaceAll("\\", "/"))
+    .filter((file) => !file.endsWith(".map"))
    .sort()
  const imports = files.map((file, i) => {
    const spec = path.relative(dir, path.join(dist, file)).replaceAll("\\", "/")
--- a/packages/opencode/script/httpapi-exercise.ts
+++ b/packages/opencode/script/httpapi-exercise.ts
--- a/packages/opencode/src/acp/agent.ts
+++ b/packages/opencode/src/acp/agent.ts
@@ -51,6 +51,7 @@ import { LoadAPIKeyError } from "ai"
 import type { AssistantMessage, Event, OpencodeClient, SessionMessageResponse, ToolPart } from "@opencode-ai/sdk/v2"
 import { applyPatch } from "diff"
 import { InstallationVersion } from "@opencode-ai/core/installation/version"
+import { ShellID } from "@/tool/shell/id"

 type ModeOption = { id: string; name: string; description?: string }
 type ModelOption = { modelId: string; name: string }
@@ -129,7 +130,7 @@ async function sendUsageUpdate(
    })
 }

-export async function init({ sdk: _sdk }: { sdk: OpencodeClient }) {
+export function init({ sdk: _sdk }: { sdk: OpencodeClient }) {
  return {
    create: (connection: AgentSideConnection, fullConfig: ACPConfig) => {
      return new Agent(connection, fullConfig)
@@ -144,7 +145,7 @@ export class Agent implements ACPAgent {
  private sessionManager: ACPSessionManager
  private eventAbort = new AbortController()
  private eventStarted = false
-  private bashSnapshots = new Map<string, string>()
+  private shellSnapshots = new Map<string, string>()
  private toolStarts = new Set<string>()
  private permissionQueues = new Map<string, Promise<void>>()
  private permissionOptions: PermissionOption[] = [
@@ -283,16 +284,16 @@ export class Agent implements ACPAgent {

          switch (part.state.status) {
            case "pending":
-              this.bashSnapshots.delete(part.callID)
+              this.shellSnapshots.delete(part.callID)
              return

            case "running":
-              const output = this.bashOutput(part)
+              const output = this.shellOutput(part)
              const content: ToolCallContent[] = []
              if (output) {
                const hash = Hash.fast(output)
-                if (part.tool === "bash") {
-                  if (this.bashSnapshots.get(part.callID) === hash) {
+                if (part.tool === ShellID.ToolID) {
+                  if (this.shellSnapshots.get(part.callID) === hash) {
                    await this.connection
                      .sessionUpdate({
                        sessionId,
@@ -311,7 +312,7 @@ export class Agent implements ACPAgent {
                      })
                    return
                  }
-                  this.bashSnapshots.set(part.callID, hash)
+                  this.shellSnapshots.set(part.callID, hash)
                }
                content.push({
                  type: "content",
@@ -342,7 +343,7 @@ export class Agent implements ACPAgent {

            case "completed": {
              this.toolStarts.delete(part.callID)
-              this.bashSnapshots.delete(part.callID)
+              this.shellSnapshots.delete(part.callID)
              const kind = toToolKind(part.tool)
              const content: ToolCallContent[] = [
                {
@@ -423,7 +424,7 @@ export class Agent implements ACPAgent {
            }
            case "error":
              this.toolStarts.delete(part.callID)
-              this.bashSnapshots.delete(part.callID)
+              this.shellSnapshots.delete(part.callID)
              await this.connection
                .sessionUpdate({
                  sessionId,
@@ -837,10 +838,10 @@ export class Agent implements ACPAgent {
        await this.toolStart(sessionId, part)
        switch (part.state.status) {
          case "pending":
-            this.bashSnapshots.delete(part.callID)
+            this.shellSnapshots.delete(part.callID)
            break
          case "running":
-            const output = this.bashOutput(part)
+            const output = this.shellOutput(part)
            const runningContent: ToolCallContent[] = []
            if (output) {
              runningContent.push({
@@ -871,7 +872,7 @@ export class Agent implements ACPAgent {
            break
          case "completed":
            this.toolStarts.delete(part.callID)
-            this.bashSnapshots.delete(part.callID)
+            this.shellSnapshots.delete(part.callID)
            const kind = toToolKind(part.tool)
            const content: ToolCallContent[] = [
              {
@@ -951,7 +952,7 @@ export class Agent implements ACPAgent {
            break
          case "error":
            this.toolStarts.delete(part.callID)
-            this.bashSnapshots.delete(part.callID)
+            this.shellSnapshots.delete(part.callID)
            await this.connection
              .sessionUpdate({
                sessionId,
@@ -1105,8 +1106,8 @@ export class Agent implements ACPAgent {
    }
  }

-  private bashOutput(part: ToolPart) {
-    if (part.tool !== "bash") return
+  private shellOutput(part: ToolPart) {
+    if (part.tool !== ShellID.ToolID) return
    if (!("metadata" in part.state) || !part.state.metadata || typeof part.state.metadata !== "object") return
    const output = part.state.metadata["output"]
    if (typeof output !== "string") return
@@ -1549,9 +1550,11 @@ export class Agent implements ACPAgent {

 function toToolKind(toolName: string): ToolKind {
  const tool = toolName.toLocaleLowerCase()
+
  switch (tool) {
-    case "bash":
+    case ShellID.ToolID:
      return "execute"
+
    case "webfetch":
      return "fetch"

@@ -1576,6 +1579,7 @@ function toToolKind(toolName: string): ToolKind {

 function toLocations(toolName: string, input: Record<string, any>): { path: string }[] {
  const tool = toolName.toLocaleLowerCase()
+
  switch (tool) {
    case "read":
    case "edit":
@@ -1584,7 +1588,7 @@ function toLocations(toolName: string, input: Record<string, any>): { path: stri
    case "glob":
    case "grep":
      return input["path"] ? [{ path: input["path"] }] : []
-    case "bash":
+    case ShellID.ToolID:
      return []
    default:
      return []
--- a/packages/opencode/src/bus/bus-event.ts
+++ b/packages/opencode/src/bus/bus-event.ts
@@ -24,6 +24,7 @@ export function payloads() {
    .map(([type, def]) => {
      return z
        .object({
+          id: z.string(),
          type: z.literal(type),
          properties: zodObject(def.properties),
        })
@@ -39,6 +40,7 @@ export function effectPayloads() {
    .entries()
    .map(([type, def]) =>
      Schema.Struct({
+        id: Schema.String,
        type: Schema.Literal(type),
        properties: def.properties,
      }).annotate({ identifier: `Event.${type}` }),
--- a/packages/opencode/src/bus/global.ts
+++ b/packages/opencode/src/bus/global.ts
@@ -1,4 +1,5 @@
 import { EventEmitter } from "events"
+import { Identifier } from "@/id/id"

 export type GlobalEvent = {
  directory?: string
@@ -7,6 +8,15 @@ export type GlobalEvent = {
  payload: any
 }

-export const GlobalBus = new EventEmitter<{
+class GlobalBusEmitter extends EventEmitter<{
  event: [GlobalEvent]
-}>()
+}> {
+  override emit(eventName: "event", event: GlobalEvent): boolean {
+    if (event.payload && typeof event.payload === "object" && !("id" in event.payload)) {
+      event.payload.id = event.payload.syncEvent?.id ?? Identifier.create("evt", "ascending")
+    }
+    return super.emit(eventName, event)
+  }
+}
+
+export const GlobalBus = new GlobalBusEmitter()
--- a/packages/opencode/src/bus/index.ts
+++ b/packages/opencode/src/bus/index.ts
@@ -5,6 +5,7 @@ import { BusEvent } from "./bus-event"
 import { GlobalBus } from "./global"
 import { InstanceState } from "@/effect/instance-state"
 import { makeRuntime } from "@/effect/run-service"
+import { Identifier } from "@/id/id"

 const log = Log.create({ service: "bus" })

@@ -18,6 +19,7 @@ export const InstanceDisposed = BusEvent.define(
 )

 type Payload<D extends BusEvent.Definition = BusEvent.Definition> = {
+  id: string
  type: D["type"]
  properties: BusProperties<D>
 }
@@ -28,7 +30,11 @@ type State = {
 }

 export interface Interface {
-  readonly publish: <D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) => Effect.Effect<void>
+  readonly publish: <D extends BusEvent.Definition>(
+    def: D,
+    properties: BusProperties<D>,
+    options?: { id?: string },
+  ) => Effect.Effect<void>
  readonly subscribe: <D extends BusEvent.Definition>(def: D) => Stream.Stream<Payload<D>>
  readonly subscribeAll: () => Stream.Stream<Payload>
  readonly subscribeCallback: <D extends BusEvent.Definition>(
@@ -53,6 +59,7 @@ export const layer = Layer.effect(
            // Publish InstanceDisposed before shutting down so subscribers see it
            yield* PubSub.publish(wildcard, {
              type: InstanceDisposed.type,
+              id: createID(),
              properties: { directory: ctx.directory },
            })
            yield* PubSub.shutdown(wildcard)
@@ -77,10 +84,10 @@ export const layer = Layer.effect(
      })
    }

-    function publish<D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) {
+    function publish<D extends BusEvent.Definition>(def: D, properties: BusProperties<D>, options?: { id?: string }) {
      return Effect.gen(function* () {
        const s = yield* InstanceState.get(state)
-        const payload: Payload = { type: def.type, properties }
+        const payload: Payload = { id: options?.id ?? createID(), type: def.type, properties }
        log.info("publishing", { type: def.type })

        const ps = s.typed.get(def.type)
@@ -173,8 +180,16 @@ const { runPromise, runSync } = makeRuntime(Service, layer)

 // runSync is safe here because the subscribe chain (InstanceState.get, PubSub.subscribe,
 // Scope.make, Effect.forkScoped) is entirely synchronous. If any step becomes async, this will throw.
-export async function publish<D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) {
-  return runPromise((svc) => svc.publish(def, properties))
+export function createID() {
+  return Identifier.create("evt", "ascending")
+}
+
+export async function publish<D extends BusEvent.Definition>(
+  def: D,
+  properties: BusProperties<D>,
+  options?: { id?: string },
+) {
+  return runPromise((svc) => svc.publish(def, properties, options))
 }

 export function subscribe<D extends BusEvent.Definition>(def: D, callback: (event: Payload<D>) => unknown) {
--- a/packages/opencode/src/cli/bootstrap.ts
+++ b/packages/opencode/src/cli/bootstrap.ts
@@ -1,17 +1,16 @@
-import { AppRuntime } from "@/effect/app-runtime"
-import { InstanceBootstrap } from "../project/bootstrap"
 import { Instance } from "../project/instance"
+import { InstanceRuntime } from "../project/instance-runtime"
+import { WithInstance } from "../project/with-instance"

 export async function bootstrap<T>(directory: string, cb: () => Promise<T>) {
-  return Instance.provide({
+  return WithInstance.provide({
    directory,
-    init: () => AppRuntime.runPromise(InstanceBootstrap),
    fn: async () => {
      try {
        const result = await cb()
        return result
      } finally {
-        await Instance.dispose()
+        await InstanceRuntime.disposeInstance(Instance.current)
      }
    },
  })
--- a/packages/opencode/src/cli/cmd/account.ts
+++ b/packages/opencode/src/cli/cmd/account.ts
@@ -3,7 +3,7 @@ import { Duration, Effect, Match, Option } from "effect"
 import { UI } from "../ui"
 import { Account } from "@/account/account"
 import { AccountID, OrgID, PollExpired, type PollResult, type AccountError } from "@/account/schema"
-import { AppRuntime } from "@/effect/app-runtime"
+import { effectCmd } from "../effect-cmd"
 import * as Prompt from "../effect/prompt"
 import open from "open"

@@ -172,60 +172,65 @@ const openEffect = Effect.fn("open")(function* () {
  yield* Prompt.outro("Opened " + url)
 })

-export const LoginCommand = cmd({
+export const LoginCommand = effectCmd({
  command: "login <url>",
  describe: false,
+  instance: false,
  builder: (yargs) =>
    yargs.positional("url", {
      describe: "server URL",
      type: "string",
      demandOption: true,
    }),
-  async handler(args) {
+  handler: Effect.fn("Cli.account.login")(function* (args) {
    UI.empty()
-    await AppRuntime.runPromise(loginEffect(args.url))
-  },
+    yield* Effect.orDie(loginEffect(args.url))
+  }),
 })

-export const LogoutCommand = cmd({
+export const LogoutCommand = effectCmd({
  command: "logout [email]",
  describe: false,
+  instance: false,
  builder: (yargs) =>
    yargs.positional("email", {
      describe: "account email to log out from",
      type: "string",
    }),
-  async handler(args) {
+  handler: Effect.fn("Cli.account.logout")(function* (args) {
    UI.empty()
-    await AppRuntime.runPromise(logoutEffect(args.email))
-  },
+    yield* Effect.orDie(logoutEffect(args.email))
+  }),
 })

-export const SwitchCommand = cmd({
+export const SwitchCommand = effectCmd({
  command: "switch",
  describe: false,
-  async handler() {
+  instance: false,
+  handler: Effect.fn("Cli.account.switch")(function* () {
    UI.empty()
-    await AppRuntime.runPromise(switchEffect())
-  },
+    yield* Effect.orDie(switchEffect())
+  }),
 })

-export const OrgsCommand = cmd({
+export const OrgsCommand = effectCmd({
  command: "orgs",
  describe: false,
-  async handler() {
+  instance: false,
+  handler: Effect.fn("Cli.account.orgs")(function* () {
    UI.empty()
-    await AppRuntime.runPromise(orgsEffect())
-  },
+    yield* Effect.orDie(orgsEffect())
+  }),
 })

-export const OpenCommand = cmd({
+export const OpenCommand = effectCmd({
  command: "open",
  describe: false,
-  async handler() {
+  instance: false,
+  handler: Effect.fn("Cli.account.open")(function* () {
    UI.empty()
-    await AppRuntime.runPromise(openEffect())
-  },
+    yield* Effect.orDie(openEffect())
+  }),
 })

 export const ConsoleCommand = cmd({
--- a/packages/opencode/src/cli/cmd/acp.ts
+++ b/packages/opencode/src/cli/cmd/acp.ts
@@ -1,6 +1,6 @@
 import * as Log from "@opencode-ai/core/util/log"
-import { bootstrap } from "../bootstrap"
-import { cmd } from "./cmd"
+import { Effect } from "effect"
+import { effectCmd } from "../effect-cmd"
 import { AgentSideConnection, ndJsonStream } from "@agentclientprotocol/sdk"
 import { ACP } from "@/acp/agent"
 import { Server } from "@/server/server"
@@ -9,7 +9,7 @@ import { withNetworkOptions, resolveNetworkOptions } from "../network"

 const log = Log.create({ service: "acp-command" })

-export const AcpCommand = cmd({
+export const AcpCommand = effectCmd({
  command: "acp",
  describe: "start ACP (Agent Client Protocol) server",
  builder: (yargs) => {
@@ -19,52 +19,53 @@ export const AcpCommand = cmd({
      default: process.cwd(),
    })
  },
-  handler: async (args) => {
+  handler: Effect.fn("Cli.acp")(function* (args) {
    process.env.OPENCODE_CLIENT = "acp"
-    await bootstrap(process.cwd(), async () => {
-      const opts = await resolveNetworkOptions(args)
-      const server = await Server.listen(opts)
+    const opts = yield* Effect.promise(() => resolveNetworkOptions(args))
+    const server = yield* Effect.promise(() => Server.listen(opts))

-      const sdk = createOpencodeClient({
-        baseUrl: `http://${server.hostname}:${server.port}`,
-      })
-
-      const input = new WritableStream<Uint8Array>({
-        write(chunk) {
-          return new Promise<void>((resolve, reject) => {
-            process.stdout.write(chunk, (err) => {
-              if (err) {
-                reject(err)
-              } else {
-                resolve()
-              }
-            })
-          })
-        },
-      })
-      const output = new ReadableStream<Uint8Array>({
-        start(controller) {
-          process.stdin.on("data", (chunk: Buffer) => {
-            controller.enqueue(new Uint8Array(chunk))
-          })
-          process.stdin.on("end", () => controller.close())
-          process.stdin.on("error", (err) => controller.error(err))
-        },
-      })
-
-      const stream = ndJsonStream(input, output)
-      const agent = await ACP.init({ sdk })
-
-      new AgentSideConnection((conn) => {
-        return agent.create(conn, { sdk })
-      }, stream)
-
-      log.info("setup connection")
-      process.stdin.resume()
-      await new Promise((resolve, reject) => {
-        process.stdin.on("end", resolve)
-        process.stdin.on("error", reject)
-      })
+    const sdk = createOpencodeClient({
+      baseUrl: `http://${server.hostname}:${server.port}`,
    })
-  },
+
+    const input = new WritableStream<Uint8Array>({
+      write(chunk) {
+        return new Promise<void>((resolve, reject) => {
+          process.stdout.write(chunk, (err) => {
+            if (err) {
+              reject(err)
+            } else {
+              resolve()
+            }
+          })
+        })
+      },
+    })
+    const output = new ReadableStream<Uint8Array>({
+      start(controller) {
+        process.stdin.on("data", (chunk: Buffer) => {
+          controller.enqueue(new Uint8Array(chunk))
+        })
+        process.stdin.on("end", () => controller.close())
+        process.stdin.on("error", (err) => controller.error(err))
+      },
+    })
+
+    const stream = ndJsonStream(input, output)
+    const agent = ACP.init({ sdk })
+
+    new AgentSideConnection((conn) => {
+      return agent.create(conn, { sdk })
+    }, stream)
+
+    log.info("setup connection")
+    process.stdin.resume()
+    yield* Effect.promise(
+      () =>
+        new Promise<void>((resolve, reject) => {
+          process.stdin.on("end", () => resolve())
+          process.stdin.on("error", reject)
+        }),
+    )
+  }),
 })
--- a/packages/opencode/src/cli/cmd/agent.ts
+++ b/packages/opencode/src/cli/cmd/agent.ts
@@ -1,6 +1,5 @@
 import { cmd } from "./cmd"
 import * as prompts from "@clack/prompts"
-import { AppRuntime } from "@/effect/app-runtime"
 import { UI } from "../ui"
 import { Global } from "@opencode-ai/core/global"
 import { Agent } from "../../agent/agent"
@@ -9,9 +8,11 @@ import path from "path"
 import fs from "fs/promises"
 import { Filesystem } from "@/util/filesystem"
 import matter from "gray-matter"
-import { Instance } from "../../project/instance"
+import { InstanceRef } from "@/effect/instance-ref"
 import { EOL } from "os"
 import type { Argv } from "yargs"
+import { Effect } from "effect"
+import { effectCmd } from "../effect-cmd"

 type AgentMode = "all" | "primary" | "subagent"

@@ -32,7 +33,7 @@ const AVAILABLE_PERMISSIONS = [
  "skill",
 ]

-const AgentCreateCommand = cmd({
+const AgentCreateCommand = effectCmd({
  command: "create",
  describe: "create a new agent",
  builder: (yargs: Argv) =>
@@ -60,200 +61,191 @@ const AgentCreateCommand = cmd({
        alias: ["m"],
        describe: "model to use in the format of provider/model",
      }),
-  async handler(args) {
-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        const cliPath = args.path
-        const cliDescription = args.description
-        const cliMode = args.mode as AgentMode | undefined
-        const perms = args.permissions
+  handler: Effect.fn("Cli.agent.create")(function* (args) {
+    const maybeCtx = yield* InstanceRef
+    if (!maybeCtx) return yield* Effect.die("InstanceRef not provided")
+    const ctx = maybeCtx
+    const agentSvc = yield* Agent.Service
+    yield* Effect.promise(async () => {
+      const cliPath = args.path
+      const cliDescription = args.description
+      const cliMode = args.mode as AgentMode | undefined
+      const perms = args.permissions

-        const isFullyNonInteractive = cliPath && cliDescription && cliMode && perms !== undefined
+      const isFullyNonInteractive = cliPath && cliDescription && cliMode && perms !== undefined

-        if (!isFullyNonInteractive) {
-          UI.empty()
-          prompts.intro("Create agent")
-        }
+      if (!isFullyNonInteractive) {
+        UI.empty()
+        prompts.intro("Create agent")
+      }

-        const project = Instance.project
+      const project = ctx.project

-        // Determine scope/path
-        let targetPath: string
-        if (cliPath) {
-          targetPath = path.join(cliPath, "agent")
-        } else {
-          let scope: "global" | "project" = "global"
-          if (project.vcs === "git") {
-            const scopeResult = await prompts.select({
-              message: "Location",
-              options: [
-                {
-                  label: "Current project",
-                  value: "project" as const,
-                  hint: Instance.worktree,
-                },
-                {
-                  label: "Global",
-                  value: "global" as const,
-                  hint: Global.Path.config,
-                },
-              ],
-            })
-            if (prompts.isCancel(scopeResult)) throw new UI.CancelledError()
-            scope = scopeResult
-          }
-          targetPath = path.join(
-            scope === "global" ? Global.Path.config : path.join(Instance.worktree, ".opencode"),
-            "agent",
-          )
-        }
-
-        // Get description
-        let description: string
-        if (cliDescription) {
-          description = cliDescription
-        } else {
-          const query = await prompts.text({
-            message: "Description",
-            placeholder: "What should this agent do?",
-            validate: (x) => (x && x.length > 0 ? undefined : "Required"),
-          })
-          if (prompts.isCancel(query)) throw new UI.CancelledError()
-          description = query
-        }
-
-        // Generate agent
-        const spinner = prompts.spinner()
-        spinner.start("Generating agent configuration...")
-        const model = args.model ? Provider.parseModel(args.model) : undefined
-        const generated = await AppRuntime.runPromise(
-          Agent.Service.use((svc) => svc.generate({ description, model })),
-        ).catch((error) => {
-          spinner.stop(`LLM failed to generate agent: ${error.message}`, 1)
-          if (isFullyNonInteractive) process.exit(1)
-          throw new UI.CancelledError()
-        })
-        spinner.stop(`Agent ${generated.identifier} generated`)
-
-        // Select permissions to allow
-        let selected: string[]
-        if (perms !== undefined) {
-          selected = perms ? perms.split(",").map((t) => t.trim()) : AVAILABLE_PERMISSIONS
-        } else {
-          const result = await prompts.multiselect({
-            message: "Select permissions to allow (Space to toggle)",
-            options: AVAILABLE_PERMISSIONS.map((permission) => ({
-              label: permission,
-              value: permission,
-            })),
-            initialValues: AVAILABLE_PERMISSIONS,
-          })
-          if (prompts.isCancel(result)) throw new UI.CancelledError()
-          selected = result
-        }
-
-        // Get mode
-        let mode: AgentMode
-        if (cliMode) {
-          mode = cliMode
-        } else {
-          const modeResult = await prompts.select({
-            message: "Agent mode",
+      // Determine scope/path
+      let targetPath: string
+      if (cliPath) {
+        targetPath = path.join(cliPath, "agent")
+      } else {
+        let scope: "global" | "project" = "global"
+        if (project.vcs === "git") {
+          const scopeResult = await prompts.select({
+            message: "Location",
            options: [
              {
-                label: "All",
-                value: "all" as const,
-                hint: "Can function in both primary and subagent roles",
+                label: "Current project",
+                value: "project" as const,
+                hint: ctx.worktree,
              },
              {
-                label: "Primary",
-                value: "primary" as const,
-                hint: "Acts as a primary/main agent",
-              },
-              {
-                label: "Subagent",
-                value: "subagent" as const,
-                hint: "Can be used as a subagent by other agents",
+                label: "Global",
+                value: "global" as const,
+                hint: Global.Path.config,
              },
            ],
-            initialValue: "all" as const,
          })
-          if (prompts.isCancel(modeResult)) throw new UI.CancelledError()
-          mode = modeResult
+          if (prompts.isCancel(scopeResult)) throw new UI.CancelledError()
+          scope = scopeResult
        }
+        targetPath = path.join(scope === "global" ? Global.Path.config : path.join(ctx.worktree, ".opencode"), "agent")
+      }

-        // Build permissions config — deny anything not explicitly selected.
-        const permissions: Record<string, "deny"> = {}
-        for (const permission of AVAILABLE_PERMISSIONS) {
-          if (!selected.includes(permission)) {
-            permissions[permission] = "deny"
-          }
+      // Get description
+      let description: string
+      if (cliDescription) {
+        description = cliDescription
+      } else {
+        const query = await prompts.text({
+          message: "Description",
+          placeholder: "What should this agent do?",
+          validate: (x) => (x && x.length > 0 ? undefined : "Required"),
+        })
+        if (prompts.isCancel(query)) throw new UI.CancelledError()
+        description = query
+      }
+
+      // Generate agent
+      const spinner = prompts.spinner()
+      spinner.start("Generating agent configuration...")
+      const model = args.model ? Provider.parseModel(args.model) : undefined
+      const generated = await Effect.runPromise(agentSvc.generate({ description, model })).catch((error) => {
+        spinner.stop(`LLM failed to generate agent: ${error.message}`, 1)
+        if (isFullyNonInteractive) process.exit(1)
+        throw new UI.CancelledError()
+      })
+      spinner.stop(`Agent ${generated.identifier} generated`)
+
+      // Select permissions to allow
+      let selected: string[]
+      if (perms !== undefined) {
+        selected = perms ? perms.split(",").map((t) => t.trim()) : AVAILABLE_PERMISSIONS
+      } else {
+        const result = await prompts.multiselect({
+          message: "Select permissions to allow (Space to toggle)",
+          options: AVAILABLE_PERMISSIONS.map((permission) => ({
+            label: permission,
+            value: permission,
+          })),
+          initialValues: AVAILABLE_PERMISSIONS,
+        })
+        if (prompts.isCancel(result)) throw new UI.CancelledError()
+        selected = result
+      }
+
+      // Get mode
+      let mode: AgentMode
+      if (cliMode) {
+        mode = cliMode
+      } else {
+        const modeResult = await prompts.select({
+          message: "Agent mode",
+          options: [
+            {
+              label: "All",
+              value: "all" as const,
+              hint: "Can function in both primary and subagent roles",
+            },
+            {
+              label: "Primary",
+              value: "primary" as const,
+              hint: "Acts as a primary/main agent",
+            },
+            {
+              label: "Subagent",
+              value: "subagent" as const,
+              hint: "Can be used as a subagent by other agents",
+            },
+          ],
+          initialValue: "all" as const,
+        })
+        if (prompts.isCancel(modeResult)) throw new UI.CancelledError()
+        mode = modeResult
+      }
+
+      // Build permissions config — deny anything not explicitly selected.
+      const permissions: Record<string, "deny"> = {}
+      for (const permission of AVAILABLE_PERMISSIONS) {
+        if (!selected.includes(permission)) {
+          permissions[permission] = "deny"
        }
+      }

-        // Build frontmatter
-        const frontmatter: {
-          description: string
-          mode: AgentMode
-          permission?: Record<string, "deny">
-        } = {
-          description: generated.whenToUse,
-          mode,
-        }
-        if (Object.keys(permissions).length > 0) {
-          frontmatter.permission = permissions
-        }
+      // Build frontmatter
+      const frontmatter: {
+        description: string
+        mode: AgentMode
+        permission?: Record<string, "deny">
+      } = {
+        description: generated.whenToUse,
+        mode,
+      }
+      if (Object.keys(permissions).length > 0) {
+        frontmatter.permission = permissions
+      }

-        // Write file
-        const content = matter.stringify(generated.systemPrompt, frontmatter)
-        const filePath = path.join(targetPath, `${generated.identifier}.md`)
+      // Write file
+      const content = matter.stringify(generated.systemPrompt, frontmatter)
+      const filePath = path.join(targetPath, `${generated.identifier}.md`)

-        await fs.mkdir(targetPath, { recursive: true })
-
-        if (await Filesystem.exists(filePath)) {
-          if (isFullyNonInteractive) {
-            console.error(`Error: Agent file already exists: ${filePath}`)
-            process.exit(1)
-          }
-          prompts.log.error(`Agent file already exists: ${filePath}`)
-          throw new UI.CancelledError()
-        }
-
-        await Filesystem.write(filePath, content)
+      await fs.mkdir(targetPath, { recursive: true })

+      if (await Filesystem.exists(filePath)) {
        if (isFullyNonInteractive) {
-          console.log(filePath)
-        } else {
-          prompts.log.success(`Agent created: ${filePath}`)
-          prompts.outro("Done")
+          console.error(`Error: Agent file already exists: ${filePath}`)
+          process.exit(1)
        }
-      },
+        prompts.log.error(`Agent file already exists: ${filePath}`)
+        throw new UI.CancelledError()
+      }
+
+      await Filesystem.write(filePath, content)
+
+      if (isFullyNonInteractive) {
+        console.log(filePath)
+      } else {
+        prompts.log.success(`Agent created: ${filePath}`)
+        prompts.outro("Done")
+      }
    })
-  },
+  }),
 })

-const AgentListCommand = cmd({
+const AgentListCommand = effectCmd({
  command: "list",
  describe: "list all available agents",
-  async handler() {
-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        const agents = await AppRuntime.runPromise(Agent.Service.use((svc) => svc.list()))
-        const sortedAgents = agents.sort((a, b) => {
-          if (a.native !== b.native) {
-            return a.native ? -1 : 1
-          }
-          return a.name.localeCompare(b.name)
-        })
-
-        for (const agent of sortedAgents) {
-          process.stdout.write(`${agent.name} (${agent.mode})` + EOL)
-          process.stdout.write(`  ${JSON.stringify(agent.permission, null, 2)}` + EOL)
-        }
-      },
+  handler: Effect.fn("Cli.agent.list")(function* () {
+    const agents = yield* Agent.Service.use((svc) => svc.list())
+    const sortedAgents = agents.sort((a, b) => {
+      if (a.native !== b.native) {
+        return a.native ? -1 : 1
+      }
+      return a.name.localeCompare(b.name)
    })
-  },
+
+    for (const agent of sortedAgents) {
+      process.stdout.write(`${agent.name} (${agent.mode})` + EOL)
+      process.stdout.write(`  ${JSON.stringify(agent.permission, null, 2)}` + EOL)
+    }
+  }),
 })

 export const AgentCommand = cmd({
--- a/packages/opencode/src/cli/cmd/cmd.ts
+++ b/packages/opencode/src/cli/cmd/cmd.ts
@@ -1,6 +1,6 @@
 import type { CommandModule } from "yargs"

-type WithDoubleDash<T> = T & { "--"?: string[] }
+export type WithDoubleDash<T> = T & { "--"?: string[] }

 export function cmd<T, U>(input: CommandModule<T, WithDoubleDash<U>>) {
  return input
--- a/packages/opencode/src/cli/cmd/debug/agent.ts
+++ b/packages/opencode/src/cli/cmd/debug/agent.ts
@@ -7,14 +7,13 @@ import { Session } from "@/session/session"
 import type { MessageV2 } from "../../../session/message-v2"
 import { MessageID, PartID } from "../../../session/schema"
 import { ToolRegistry } from "@/tool/registry"
-import { Instance } from "../../../project/instance"
 import { Permission } from "../../../permission"
 import { iife } from "../../../util/iife"
-import { bootstrap } from "../../bootstrap"
-import { cmd } from "../cmd"
-import { AppRuntime } from "@/effect/app-runtime"
+import { effectCmd, fail } from "../../effect-cmd"
+import { InstanceRef } from "@/effect/instance-ref"
+import type { InstanceContext } from "@/project/instance"

-export const AgentCommand = cmd({
+export const AgentCommand = effectCmd({
  command: "agent <name>",
  describe: "show agent configuration details",
  builder: (yargs) =>
@@ -32,60 +31,60 @@ export const AgentCommand = cmd({
        type: "string",
        description: "Tool params as JSON or a JS object literal",
      }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const agentName = args.name as string
-      const agent = await AppRuntime.runPromise(Agent.Service.use((svc) => svc.get(agentName)))
-      if (!agent) {
-        process.stderr.write(
-          `Agent ${agentName} not found, run '${basename(process.execPath)} agent list' to get an agent list` + EOL,
-        )
-        process.exit(1)
-      }
-      const availableTools = await getAvailableTools(agent)
-      const resolvedTools = await resolveTools(agent, availableTools)
-      const toolID = args.tool as string | undefined
-      if (toolID) {
-        const tool = availableTools.find((item) => item.id === toolID)
-        if (!tool) {
-          process.stderr.write(`Tool ${toolID} not found for agent ${agentName}` + EOL)
-          process.exit(1)
-        }
-        if (resolvedTools[toolID] === false) {
-          process.stderr.write(`Tool ${toolID} is disabled for agent ${agentName}` + EOL)
-          process.exit(1)
-        }
-        const params = parseToolParams(args.params as string | undefined)
-        const ctx = await createToolContext(agent)
-        const result = await tool.execute(params, ctx)
-        process.stdout.write(JSON.stringify({ tool: toolID, input: params, result }, null, 2) + EOL)
-        return
-      }
-
-      const output = {
-        ...agent,
-        tools: resolvedTools,
-      }
-      process.stdout.write(JSON.stringify(output, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.agent")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    return yield* run(args, ctx)
+  }),
 })

-async function getAvailableTools(agent: Agent.Info) {
-  return AppRuntime.runPromise(
-    Effect.gen(function* () {
-      const provider = yield* Provider.Service
-      const registry = yield* ToolRegistry.Service
-      const model = agent.model ?? (yield* provider.defaultModel())
-      return yield* registry.tools({
-        ...model,
-        agent,
-      })
-    }),
-  )
-}
+const run = Effect.fn("Cli.debug.agent.body")(function* (
+  args: { name: string; tool?: string; params?: string },
+  ctx: InstanceContext,
+) {
+  const agentName = args.name
+  const agent = yield* Agent.Service.use((svc) => svc.get(agentName))
+  if (!agent) {
+    process.stderr.write(
+      `Agent ${agentName} not found, run '${basename(process.execPath)} agent list' to get an agent list` + EOL,
+    )
+    return yield* fail("", 1)
+  }
+  const availableTools = yield* getAvailableTools(agent)
+  const resolvedTools = resolveTools(agent, availableTools)
+  const toolID = args.tool
+  if (toolID) {
+    const tool = availableTools.find((item) => item.id === toolID)
+    if (!tool) {
+      process.stderr.write(`Tool ${toolID} not found for agent ${agentName}` + EOL)
+      return yield* fail("", 1)
+    }
+    if (resolvedTools[toolID] === false) {
+      process.stderr.write(`Tool ${toolID} is disabled for agent ${agentName}` + EOL)
+      return yield* fail("", 1)
+    }
+    const params = parseToolParams(args.params)
+    const toolCtx = yield* createToolContext(agent, ctx)
+    const result = yield* tool.execute(params, toolCtx)
+    process.stdout.write(JSON.stringify({ tool: toolID, input: params, result }, null, 2) + EOL)
+    return
+  }

-async function resolveTools(agent: Agent.Info, availableTools: Awaited<ReturnType<typeof getAvailableTools>>) {
+  const output = {
+    ...agent,
+    tools: resolvedTools,
+  }
+  process.stdout.write(JSON.stringify(output, null, 2) + EOL)
+})
+
+const getAvailableTools = Effect.fn("Cli.debug.agent.getAvailableTools")(function* (agent: Agent.Info) {
+  const provider = yield* Provider.Service
+  const registry = yield* ToolRegistry.Service
+  const model = agent.model ?? (yield* provider.defaultModel())
+  return yield* registry.tools({ ...model, agent })
+})
+
+function resolveTools(agent: Agent.Info, availableTools: { id: string }[]) {
  const disabled = Permission.disabled(
    availableTools.map((tool) => tool.id),
    agent.permission,
@@ -123,50 +122,38 @@ function parseToolParams(input?: string) {
  return parsed as Record<string, unknown>
 }

-async function createToolContext(agent: Agent.Info) {
-  const { session, messageID } = await AppRuntime.runPromise(
-    Effect.gen(function* () {
-      const session = yield* Session.Service
-      const result = yield* session.create({ title: `Debug tool run (${agent.name})` })
-      const messageID = MessageID.ascending()
-      const model = agent.model
-        ? agent.model
-        : yield* Effect.gen(function* () {
-            const provider = yield* Provider.Service
-            return yield* provider.defaultModel()
-          })
-      const now = Date.now()
-      const message: MessageV2.Assistant = {
-        id: messageID,
-        sessionID: result.id,
-        role: "assistant",
-        time: {
-          created: now,
-        },
-        parentID: messageID,
-        modelID: model.modelID,
-        providerID: model.providerID,
-        mode: "debug",
-        agent: agent.name,
-        path: {
-          cwd: Instance.directory,
-          root: Instance.worktree,
-        },
-        cost: 0,
-        tokens: {
-          input: 0,
-          output: 0,
-          reasoning: 0,
-          cache: {
-            read: 0,
-            write: 0,
-          },
-        },
-      }
-      yield* session.updateMessage(message)
-      return { session: result, messageID }
-    }),
-  )
+const createToolContext = Effect.fn("Cli.debug.agent.createToolContext")(function* (
+  agent: Agent.Info,
+  ctx: InstanceContext,
+) {
+  const sessionSvc = yield* Session.Service
+  const session = yield* sessionSvc.create({ title: `Debug tool run (${agent.name})` })
+  const messageID = MessageID.ascending()
+  const model = agent.model
+    ? agent.model
+    : yield* Effect.gen(function* () {
+        const provider = yield* Provider.Service
+        return yield* provider.defaultModel()
+      })
+  const now = Date.now()
+  const message: MessageV2.Assistant = {
+    id: messageID,
+    sessionID: session.id,
+    role: "assistant",
+    time: { created: now },
+    parentID: messageID,
+    modelID: model.modelID,
+    providerID: model.providerID,
+    mode: "debug",
+    agent: agent.name,
+    path: {
+      cwd: ctx.directory,
+      root: ctx.worktree,
+    },
+    cost: 0,
+    tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+  }
+  yield* sessionSvc.updateMessage(message)

  const ruleset = Permission.merge(agent.permission, session.permission ?? [])

@@ -189,4 +176,4 @@ async function createToolContext(agent: Agent.Info) {
      })
    },
  }
-}
+})
--- a/packages/opencode/src/cli/cmd/debug/config.ts
+++ b/packages/opencode/src/cli/cmd/debug/config.ts
@@ -1,17 +1,14 @@
 import { EOL } from "os"
+import { Effect } from "effect"
 import { Config } from "@/config/config"
-import { AppRuntime } from "@/effect/app-runtime"
-import { bootstrap } from "../../bootstrap"
-import { cmd } from "../cmd"
+import { effectCmd } from "../../effect-cmd"

-export const ConfigCommand = cmd({
+export const ConfigCommand = effectCmd({
  command: "config",
  describe: "show resolved configuration",
  builder: (yargs) => yargs,
-  async handler() {
-    await bootstrap(process.cwd(), async () => {
-      const config = await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.get()))
-      process.stdout.write(JSON.stringify(config, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.config")(function* () {
+    const config = yield* Config.Service.use((cfg) => cfg.get())
+    process.stdout.write(JSON.stringify(config, null, 2) + EOL)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/debug/file.ts
+++ b/packages/opencode/src/cli/cmd/debug/file.ts
@@ -1,11 +1,11 @@
 import { EOL } from "os"
-import { AppRuntime } from "@/effect/app-runtime"
+import { Effect } from "effect"
 import { File } from "../../../file"
 import { Ripgrep } from "@/file/ripgrep"
-import { bootstrap } from "../../bootstrap"
+import { effectCmd } from "../../effect-cmd"
 import { cmd } from "../cmd"

-const FileSearchCommand = cmd({
+const FileSearchCommand = effectCmd({
  command: "search <query>",
  describe: "search files by query",
  builder: (yargs) =>
@@ -14,15 +14,13 @@ const FileSearchCommand = cmd({
      demandOption: true,
      description: "Search query",
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const results = await AppRuntime.runPromise(File.Service.use((svc) => svc.search({ query: args.query })))
-      process.stdout.write(results.join(EOL) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.file.search")(function* (args) {
+    const results = yield* File.Service.use((svc) => svc.search({ query: args.query }))
+    process.stdout.write(results.join(EOL) + EOL)
+  }),
 })

-const FileReadCommand = cmd({
+const FileReadCommand = effectCmd({
  command: "read <path>",
  describe: "read file contents as JSON",
  builder: (yargs) =>
@@ -31,27 +29,23 @@ const FileReadCommand = cmd({
      demandOption: true,
      description: "File path to read",
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const content = await AppRuntime.runPromise(File.Service.use((svc) => svc.read(args.path)))
-      process.stdout.write(JSON.stringify(content, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.file.read")(function* (args) {
+    const content = yield* File.Service.use((svc) => svc.read(args.path))
+    process.stdout.write(JSON.stringify(content, null, 2) + EOL)
+  }),
 })

-const FileStatusCommand = cmd({
+const FileStatusCommand = effectCmd({
  command: "status",
  describe: "show file status information",
  builder: (yargs) => yargs,
-  async handler() {
-    await bootstrap(process.cwd(), async () => {
-      const status = await AppRuntime.runPromise(File.Service.use((svc) => svc.status()))
-      process.stdout.write(JSON.stringify(status, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.file.status")(function* () {
+    const status = yield* File.Service.use((svc) => svc.status())
+    process.stdout.write(JSON.stringify(status, null, 2) + EOL)
+  }),
 })

-const FileListCommand = cmd({
+const FileListCommand = effectCmd({
  command: "list <path>",
  describe: "list files in a directory",
  builder: (yargs) =>
@@ -60,15 +54,13 @@ const FileListCommand = cmd({
      demandOption: true,
      description: "File path to list",
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const files = await AppRuntime.runPromise(File.Service.use((svc) => svc.list(args.path)))
-      process.stdout.write(JSON.stringify(files, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.file.list")(function* (args) {
+    const files = yield* File.Service.use((svc) => svc.list(args.path))
+    process.stdout.write(JSON.stringify(files, null, 2) + EOL)
+  }),
 })

-const FileTreeCommand = cmd({
+const FileTreeCommand = effectCmd({
  command: "tree [dir]",
  describe: "show directory tree",
  builder: (yargs) =>
@@ -77,12 +69,10 @@ const FileTreeCommand = cmd({
      description: "Directory to tree",
      default: process.cwd(),
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const tree = await AppRuntime.runPromise(Ripgrep.Service.use((svc) => svc.tree({ cwd: args.dir, limit: 200 })))
-      console.log(JSON.stringify(tree, null, 2))
-    })
-  },
+  handler: Effect.fn("Cli.debug.file.tree")(function* (args) {
+    const tree = yield* Effect.orDie(Ripgrep.Service.use((svc) => svc.tree({ cwd: args.dir, limit: 200 })))
+    console.log(JSON.stringify(tree, null, 2))
+  }),
 })

 export const FileCommand = cmd({
--- a/packages/opencode/src/cli/cmd/debug/index.ts
+++ b/packages/opencode/src/cli/cmd/debug/index.ts
@@ -1,5 +1,6 @@
 import { Global } from "@opencode-ai/core/global"
-import { bootstrap } from "../../bootstrap"
+import { Duration, Effect } from "effect"
+import { effectCmd } from "../../effect-cmd"
 import { cmd } from "../cmd"
 import { ConfigCommand } from "./config"
 import { FileCommand } from "./file"
@@ -26,19 +27,19 @@ export const DebugCommand = cmd({
      .command(StartupCommand)
      .command(AgentCommand)
      .command(PathsCommand)
-      .command({
-        command: "wait",
-        describe: "wait indefinitely (for debugging)",
-        async handler() {
-          await bootstrap(process.cwd(), async () => {
-            await new Promise((resolve) => setTimeout(resolve, 1_000 * 60 * 60 * 24))
-          })
-        },
-      })
+      .command(WaitCommand)
      .demandCommand(),
  async handler() {},
 })

+const WaitCommand = effectCmd({
+  command: "wait",
+  describe: "wait indefinitely (for debugging)",
+  handler: Effect.fn("Cli.debug.wait")(function* () {
+    yield* Effect.sleep(Duration.days(1))
+  }),
+})
+
 const PathsCommand = cmd({
  command: "paths",
  describe: "show global paths (data, config, cache, state)",
--- a/packages/opencode/src/cli/cmd/debug/lsp.ts
+++ b/packages/opencode/src/cli/cmd/debug/lsp.ts
@@ -1,7 +1,6 @@
 import { LSP } from "@/lsp/lsp"
-import { AppRuntime } from "../../../effect/app-runtime"
 import { Effect } from "effect"
-import { bootstrap } from "../../bootstrap"
+import { effectCmd } from "../../effect-cmd"
 import { cmd } from "../cmd"
 import * as Log from "@opencode-ai/core/util/log"
 import { EOL } from "os"
@@ -14,47 +13,39 @@ export const LSPCommand = cmd({
  async handler() {},
 })

-const DiagnosticsCommand = cmd({
+const DiagnosticsCommand = effectCmd({
  command: "diagnostics <file>",
  describe: "get diagnostics for a file",
  builder: (yargs) => yargs.positional("file", { type: "string", demandOption: true }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const out = await AppRuntime.runPromise(
-        LSP.Service.use((lsp) =>
-          Effect.gen(function* () {
-            yield* lsp.touchFile(args.file, "full")
-            return yield* lsp.diagnostics()
-          }),
-        ),
-      )
-      process.stdout.write(JSON.stringify(out, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.lsp.diagnostics")(function* (args) {
+    const out = yield* LSP.Service.use((lsp) =>
+      Effect.gen(function* () {
+        yield* lsp.touchFile(args.file, "full")
+        return yield* lsp.diagnostics()
+      }),
+    )
+    process.stdout.write(JSON.stringify(out, null, 2) + EOL)
+  }),
 })

-export const SymbolsCommand = cmd({
+export const SymbolsCommand = effectCmd({
  command: "symbols <query>",
  describe: "search workspace symbols",
  builder: (yargs) => yargs.positional("query", { type: "string", demandOption: true }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      using _ = Log.Default.time("symbols")
-      const results = await AppRuntime.runPromise(LSP.Service.use((lsp) => lsp.workspaceSymbol(args.query)))
-      process.stdout.write(JSON.stringify(results, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.lsp.symbols")(function* (args) {
+    using _ = Log.Default.time("symbols")
+    const results = yield* LSP.Service.use((lsp) => lsp.workspaceSymbol(args.query))
+    process.stdout.write(JSON.stringify(results, null, 2) + EOL)
+  }),
 })

-export const DocumentSymbolsCommand = cmd({
+export const DocumentSymbolsCommand = effectCmd({
  command: "document-symbols <uri>",
  describe: "get symbols from a document",
  builder: (yargs) => yargs.positional("uri", { type: "string", demandOption: true }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      using _ = Log.Default.time("document-symbols")
-      const results = await AppRuntime.runPromise(LSP.Service.use((lsp) => lsp.documentSymbol(args.uri)))
-      process.stdout.write(JSON.stringify(results, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.lsp.documentSymbols")(function* (args) {
+    using _ = Log.Default.time("document-symbols")
+    const results = yield* LSP.Service.use((lsp) => lsp.documentSymbol(args.uri))
+    process.stdout.write(JSON.stringify(results, null, 2) + EOL)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/debug/ripgrep.ts
+++ b/packages/opencode/src/cli/cmd/debug/ripgrep.ts
@@ -1,10 +1,9 @@
 import { EOL } from "os"
 import { Effect, Stream } from "effect"
-import { AppRuntime } from "../../../effect/app-runtime"
 import { Ripgrep } from "../../../file/ripgrep"
-import { Instance } from "../../../project/instance"
-import { bootstrap } from "../../bootstrap"
+import { effectCmd } from "../../effect-cmd"
 import { cmd } from "../cmd"
+import { InstanceRef } from "@/effect/instance-ref"

 export const RipgrepCommand = cmd({
  command: "rg",
@@ -13,24 +12,22 @@ export const RipgrepCommand = cmd({
  async handler() {},
 })

-const TreeCommand = cmd({
+const TreeCommand = effectCmd({
  command: "tree",
  describe: "show file tree using ripgrep",
  builder: (yargs) =>
    yargs.option("limit", {
      type: "number",
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const tree = await AppRuntime.runPromise(
-        Ripgrep.Service.use((svc) => svc.tree({ cwd: Instance.directory, limit: args.limit })),
-      )
-      process.stdout.write(tree + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.rg.tree")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    const tree = yield* Effect.orDie(Ripgrep.Service.use((svc) => svc.tree({ cwd: ctx.directory, limit: args.limit })))
+    process.stdout.write(tree + EOL)
+  }),
 })

-const FilesCommand = cmd({
+const FilesCommand = effectCmd({
  command: "files",
  describe: "list files using ripgrep",
  builder: (yargs) =>
@@ -47,29 +44,26 @@ const FilesCommand = cmd({
        type: "number",
        description: "Limit number of results",
      }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const files = await AppRuntime.runPromise(
-        Effect.gen(function* () {
-          const rg = yield* Ripgrep.Service
-          return yield* rg
-            .files({
-              cwd: Instance.directory,
-              glob: args.glob ? [args.glob] : undefined,
-            })
-            .pipe(
-              Stream.take(args.limit ?? Infinity),
-              Stream.runCollect,
-              Effect.map((c) => [...c]),
-            )
-        }),
+  handler: Effect.fn("Cli.debug.rg.files")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    const rg = yield* Ripgrep.Service
+    const files = yield* rg
+      .files({
+        cwd: ctx.directory,
+        glob: args.glob ? [args.glob] : undefined,
+      })
+      .pipe(
+        Stream.take(args.limit ?? Infinity),
+        Stream.runCollect,
+        Effect.map((c) => [...c]),
+        Effect.orDie,
      )
-      process.stdout.write(files.join(EOL) + EOL)
-    })
-  },
+    process.stdout.write(files.join(EOL) + EOL)
+  }),
 })

-const SearchCommand = cmd({
+const SearchCommand = effectCmd({
  command: "search <pattern>",
  describe: "search file contents using ripgrep",
  builder: (yargs) =>
@@ -87,19 +81,19 @@ const SearchCommand = cmd({
        type: "number",
        description: "Limit number of results",
      }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      const results = await AppRuntime.runPromise(
-        Ripgrep.Service.use((svc) =>
-          svc.search({
-            cwd: Instance.directory,
-            pattern: args.pattern,
-            glob: args.glob as string[] | undefined,
-            limit: args.limit,
-          }),
-        ),
-      )
-      process.stdout.write(JSON.stringify(results.items, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.rg.search")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    const results = yield* Effect.orDie(
+      Ripgrep.Service.use((svc) =>
+        svc.search({
+          cwd: ctx.directory,
+          pattern: args.pattern,
+          glob: args.glob as string[] | undefined,
+          limit: args.limit,
+        }),
+      ),
+    )
+    process.stdout.write(JSON.stringify(results.items, null, 2) + EOL)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/debug/skill.ts
+++ b/packages/opencode/src/cli/cmd/debug/skill.ts
@@ -1,23 +1,15 @@
 import { EOL } from "os"
 import { Effect } from "effect"
-import { AppRuntime } from "@/effect/app-runtime"
 import { Skill } from "../../../skill"
-import { bootstrap } from "../../bootstrap"
-import { cmd } from "../cmd"
+import { effectCmd } from "../../effect-cmd"

-export const SkillCommand = cmd({
+export const SkillCommand = effectCmd({
  command: "skill",
  describe: "list all available skills",
  builder: (yargs) => yargs,
-  async handler() {
-    await bootstrap(process.cwd(), async () => {
-      const skills = await AppRuntime.runPromise(
-        Effect.gen(function* () {
-          const skill = yield* Skill.Service
-          return yield* skill.all()
-        }),
-      )
-      process.stdout.write(JSON.stringify(skills, null, 2) + EOL)
-    })
-  },
+  handler: Effect.fn("Cli.debug.skill")(function* () {
+    const skill = yield* Skill.Service
+    const skills = yield* skill.all()
+    process.stdout.write(JSON.stringify(skills, null, 2) + EOL)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/debug/snapshot.ts
+++ b/packages/opencode/src/cli/cmd/debug/snapshot.ts
@@ -1,6 +1,6 @@
-import { AppRuntime } from "@/effect/app-runtime"
+import { Effect } from "effect"
 import { Snapshot } from "../../../snapshot"
-import { bootstrap } from "../../bootstrap"
+import { effectCmd } from "../../effect-cmd"
 import { cmd } from "../cmd"

 export const SnapshotCommand = cmd({
@@ -10,17 +10,16 @@ export const SnapshotCommand = cmd({
  async handler() {},
 })

-const TrackCommand = cmd({
+const TrackCommand = effectCmd({
  command: "track",
  describe: "track current snapshot state",
-  async handler() {
-    await bootstrap(process.cwd(), async () => {
-      console.log(await AppRuntime.runPromise(Snapshot.Service.use((svc) => svc.track())))
-    })
-  },
+  handler: Effect.fn("Cli.debug.snapshot.track")(function* () {
+    const out = yield* Snapshot.Service.use((svc) => svc.track())
+    console.log(out)
+  }),
 })

-const PatchCommand = cmd({
+const PatchCommand = effectCmd({
  command: "patch <hash>",
  describe: "show patch for a snapshot hash",
  builder: (yargs) =>
@@ -29,14 +28,13 @@ const PatchCommand = cmd({
      description: "hash",
      demandOption: true,
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      console.log(await AppRuntime.runPromise(Snapshot.Service.use((svc) => svc.patch(args.hash))))
-    })
-  },
+  handler: Effect.fn("Cli.debug.snapshot.patch")(function* (args) {
+    const out = yield* Snapshot.Service.use((svc) => svc.patch(args.hash))
+    console.log(out)
+  }),
 })

-const DiffCommand = cmd({
+const DiffCommand = effectCmd({
  command: "diff <hash>",
  describe: "show diff for a snapshot hash",
  builder: (yargs) =>
@@ -45,9 +43,8 @@ const DiffCommand = cmd({
      description: "hash",
      demandOption: true,
    }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
-      console.log(await AppRuntime.runPromise(Snapshot.Service.use((svc) => svc.diff(args.hash))))
-    })
-  },
+  handler: Effect.fn("Cli.debug.snapshot.diff")(function* (args) {
+    const out = yield* Snapshot.Service.use((svc) => svc.diff(args.hash))
+    console.log(out)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/export.ts
+++ b/packages/opencode/src/cli/cmd/export.ts
@@ -1,13 +1,11 @@
-import type { Argv } from "yargs"
 import { Session } from "@/session/session"
 import { MessageV2 } from "../../session/message-v2"
 import { SessionID } from "../../session/schema"
-import { cmd } from "./cmd"
-import { bootstrap } from "../bootstrap"
+import { effectCmd, fail } from "../effect-cmd"
 import { UI } from "../ui"
 import * as prompts from "@clack/prompts"
 import { EOL } from "os"
-import { AppRuntime } from "@/effect/app-runtime"
+import { Effect } from "effect"

 function redact(kind: string, id: string, value: string) {
  return value.trim() ? `[redacted:${kind}:${id}]` : value
@@ -220,11 +218,11 @@ function sanitize(data: { info: Session.Info; messages: MessageV2.WithParts[] })
  }
 }

-export const ExportCommand = cmd({
+export const ExportCommand = effectCmd({
  command: "export [sessionID]",
  describe: "export session data as JSON",
-  builder: (yargs: Argv) => {
-    return yargs
+  builder: (yargs) =>
+    yargs
      .positional("sessionID", {
        describe: "session id to export",
        type: "string",
@@ -232,72 +230,62 @@ export const ExportCommand = cmd({
      .option("sanitize", {
        describe: "redact sensitive transcript and file data",
        type: "boolean",
-      })
-  },
-  handler: async (args) => {
-    await bootstrap(process.cwd(), async () => {
-      let sessionID = args.sessionID ? SessionID.make(args.sessionID) : undefined
-      process.stderr.write(`Exporting session: ${sessionID ?? "latest"}\n`)
-
-      if (!sessionID) {
-        UI.empty()
-        prompts.intro("Export session", {
-          output: process.stderr,
-        })
-
-        const sessions = await AppRuntime.runPromise(Session.Service.use((svc) => svc.list()))
-
-        if (sessions.length === 0) {
-          prompts.log.error("No sessions found", {
-            output: process.stderr,
-          })
-          prompts.outro("Done", {
-            output: process.stderr,
-          })
-          return
-        }
-
-        sessions.sort((a, b) => b.time.updated - a.time.updated)
-
-        const selectedSession = await prompts.autocomplete({
-          message: "Select session to export",
-          maxItems: 10,
-          options: sessions.map((session) => ({
-            label: session.title,
-            value: session.id,
-            hint: `${new Date(session.time.updated).toLocaleString()} • ${session.id.slice(-8)}`,
-          })),
-          output: process.stderr,
-        })
-
-        if (prompts.isCancel(selectedSession)) {
-          throw new UI.CancelledError()
-        }
-
-        sessionID = selectedSession
-
-        prompts.outro("Exporting session...", {
-          output: process.stderr,
-        })
-      }
-
-      try {
-        const sessionInfo = await AppRuntime.runPromise(Session.Service.use((svc) => svc.get(sessionID!)))
-        const messages = await AppRuntime.runPromise(
-          Session.Service.use((svc) => svc.messages({ sessionID: sessionInfo.id })),
-        )
-
-        const exportData = {
-          info: sessionInfo,
-          messages,
-        }
-
-        process.stdout.write(JSON.stringify(args.sanitize ? sanitize(exportData) : exportData, null, 2))
-        process.stdout.write(EOL)
-      } catch {
-        UI.error(`Session not found: ${sessionID!}`)
-        process.exit(1)
-      }
-    })
-  },
+      }),
+  handler: Effect.fn("Cli.export")(function* (args) {
+    return yield* run(args)
+  }),
+})
+
+const run = Effect.fn("Cli.export.body")(function* (args: { sessionID?: string; sanitize?: boolean }) {
+  const svc = yield* Session.Service
+  let sessionID = args.sessionID ? SessionID.make(args.sessionID) : undefined
+  process.stderr.write(`Exporting session: ${sessionID ?? "latest"}\n`)
+
+  if (!sessionID) {
+    UI.empty()
+    prompts.intro("Export session", { output: process.stderr })
+
+    const sessions = yield* svc.list()
+
+    if (sessions.length === 0) {
+      prompts.log.error("No sessions found", { output: process.stderr })
+      prompts.outro("Done", { output: process.stderr })
+      return
+    }
+
+    sessions.sort((a, b) => b.time.updated - a.time.updated)
+
+    const selectedSession = yield* Effect.promise(() =>
+      prompts.autocomplete({
+        message: "Select session to export",
+        maxItems: 10,
+        options: sessions.map((session) => ({
+          label: session.title,
+          value: session.id,
+          hint: `${new Date(session.time.updated).toLocaleString()} • ${session.id.slice(-8)}`,
+        })),
+        output: process.stderr,
+      }),
+    )
+
+    if (prompts.isCancel(selectedSession)) {
+      return yield* Effect.die(new UI.CancelledError())
+    }
+
+    sessionID = selectedSession
+
+    prompts.outro("Exporting session...", { output: process.stderr })
+  }
+
+  // Match legacy try/catch — catches both typed failures and defects
+  // (Session.Service.get throws NotFoundError as a defect, not a typed E).
+  return yield* Effect.gen(function* () {
+    const sessionInfo = yield* svc.get(sessionID!)
+    const messages = yield* svc.messages({ sessionID: sessionInfo.id })
+
+    const exportData = { info: sessionInfo, messages }
+
+    process.stdout.write(JSON.stringify(args.sanitize ? sanitize(exportData) : exportData, null, 2))
+    process.stdout.write(EOL)
+  }).pipe(Effect.catchCause(() => fail(`Session not found: ${sessionID!}`)))
 })
--- a/packages/opencode/src/cli/cmd/generate.ts
+++ b/packages/opencode/src/cli/cmd/generate.ts
@@ -1,22 +1,28 @@
 import { Server } from "../../server/server"
-import { PublicApi } from "../../server/routes/instance/httpapi/public"
 import type { CommandModule } from "yargs"
-import { OpenApi } from "effect/unstable/httpapi"

 type Args = {
  httpapi: boolean
+  hono: boolean
 }

 export const GenerateCommand = {
  command: "generate",
  builder: (yargs) =>
-    yargs.option("httpapi", {
-      type: "boolean",
-      default: false,
-      description: "Generate OpenAPI from the experimental Effect HttpApi contract",
-    }),
+    yargs
+      .option("httpapi", {
+        type: "boolean",
+        default: false,
+        description:
+          "Generate OpenAPI from the Effect HttpApi contract (default; flag retained for backwards compatibility)",
+      })
+      .option("hono", {
+        type: "boolean",
+        default: false,
+        description: "Generate OpenAPI from the legacy Hono backend (parity-diff only; will be removed)",
+      }),
  handler: async (args) => {
-    const specs = args.httpapi ? OpenApi.fromApi(PublicApi) : await Server.openapi()
+    const specs = args.hono ? await Server.openapiHono() : await Server.openapi()
    for (const item of Object.values(specs.paths)) {
      for (const method of ["get", "post", "put", "delete", "patch"] as const) {
        const operation = item[method]
--- a/packages/opencode/src/cli/cmd/github.ts
+++ b/packages/opencode/src/cli/cmd/github.ts
@@ -18,9 +18,9 @@ import type {
 } from "@octokit/webhooks-types"
 import { UI } from "../ui"
 import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
 import { ModelsDev } from "@/provider/models"
-import { Instance } from "@/project/instance"
-import { bootstrap } from "../bootstrap"
+import { InstanceRef } from "@/effect/instance-ref"
 import { SessionShare } from "@/share/session"
 import { Session } from "@/session/session"
 import type { SessionID } from "../../session/schema"
@@ -199,191 +199,192 @@ export const GithubCommand = cmd({
  async handler() {},
 })

-export const GithubInstallCommand = cmd({
+export const GithubInstallCommand = effectCmd({
  command: "install",
  describe: "install the GitHub agent",
-  async handler() {
-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        {
-          UI.empty()
-          prompts.intro("Install GitHub agent")
-          const app = await getAppInfo()
-          await installGitHubApp()
+  handler: Effect.fn("Cli.github.install")(function* () {
+    const maybeCtx = yield* InstanceRef
+    if (!maybeCtx) return yield* Effect.die("InstanceRef not provided")
+    const ctx = maybeCtx
+    yield* Effect.promise(async () => {
+      {
+        UI.empty()
+        prompts.intro("Install GitHub agent")
+        const app = await getAppInfo()
+        await installGitHubApp()

-          const providers = await ModelsDev.get().then((p) => {
-            // TODO: add guide for copilot, for now just hide it
-            delete p["github-copilot"]
-            return p
+        const providers = await AppRuntime.runPromise(ModelsDev.Service.use((s) => s.get())).then((p) => {
+          // TODO: add guide for copilot, for now just hide it
+          delete p["github-copilot"]
+          return p
+        })
+
+        const provider = await promptProvider()
+        const model = await promptModel()
+        //const key = await promptKey()
+
+        await addWorkflowFiles()
+        printNextSteps()
+
+        function printNextSteps() {
+          let step2
+          if (provider === "amazon-bedrock") {
+            step2 =
+              "Configure OIDC in AWS - https://docs.github.com/en/actions/how-tos/security-for-github-actions/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services"
+          } else {
+            step2 = [
+              `    2. Add the following secrets in org or repo (${app.owner}/${app.repo}) settings`,
+              "",
+              ...providers[provider].env.map((e) => `       - ${e}`),
+            ].join("\n")
+          }
+
+          prompts.outro(
+            [
+              "Next steps:",
+              "",
+              `    1. Commit the \`${WORKFLOW_FILE}\` file and push`,
+              step2,
+              "",
+              "    3. Go to a GitHub issue and comment `/oc summarize` to see the agent in action",
+              "",
+              "   Learn more about the GitHub agent - https://opencode.ai/docs/github/#usage-examples",
+            ].join("\n"),
+          )
+        }
+
+        async function getAppInfo() {
+          const project = ctx.project
+          if (project.vcs !== "git") {
+            prompts.log.error(`Could not find git repository. Please run this command from a git repository.`)
+            throw new UI.CancelledError()
+          }
+
+          // Get repo info
+          const info = await AppRuntime.runPromise(
+            Git.Service.use((git) => git.run(["remote", "get-url", "origin"], { cwd: ctx.worktree })),
+          ).then((x) => x.text().trim())
+          const parsed = parseGitHubRemote(info)
+          if (!parsed) {
+            prompts.log.error(`Could not find git repository. Please run this command from a git repository.`)
+            throw new UI.CancelledError()
+          }
+          return { owner: parsed.owner, repo: parsed.repo, root: ctx.worktree }
+        }
+
+        async function promptProvider() {
+          const priority: Record<string, number> = {
+            opencode: 0,
+            anthropic: 1,
+            openai: 2,
+            google: 3,
+          }
+          let provider = await prompts.select({
+            message: "Select provider",
+            maxItems: 8,
+            options: pipe(
+              providers,
+              values(),
+              sortBy(
+                (x) => priority[x.id] ?? 99,
+                (x) => x.name ?? x.id,
+              ),
+              map((x) => ({
+                label: x.name,
+                value: x.id,
+                hint: priority[x.id] === 0 ? "recommended" : undefined,
+              })),
+            ),
          })

-          const provider = await promptProvider()
-          const model = await promptModel()
-          //const key = await promptKey()
+          if (prompts.isCancel(provider)) throw new UI.CancelledError()

-          await addWorkflowFiles()
-          printNextSteps()
+          return provider
+        }

-          function printNextSteps() {
-            let step2
-            if (provider === "amazon-bedrock") {
-              step2 =
-                "Configure OIDC in AWS - https://docs.github.com/en/actions/how-tos/security-for-github-actions/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services"
-            } else {
-              step2 = [
-                `    2. Add the following secrets in org or repo (${app.owner}/${app.repo}) settings`,
-                "",
-                ...providers[provider].env.map((e) => `       - ${e}`),
-              ].join("\n")
+        async function promptModel() {
+          const providerData = providers[provider]!
+
+          const model = await prompts.select({
+            message: "Select model",
+            maxItems: 8,
+            options: pipe(
+              providerData.models,
+              values(),
+              sortBy((x) => x.name ?? x.id),
+              map((x) => ({
+                label: x.name ?? x.id,
+                value: x.id,
+              })),
+            ),
+          })
+
+          if (prompts.isCancel(model)) throw new UI.CancelledError()
+          return model
+        }
+
+        async function installGitHubApp() {
+          const s = prompts.spinner()
+          s.start("Installing GitHub app")
+
+          // Get installation
+          const installation = await getInstallation()
+          if (installation) return s.stop("GitHub app already installed")
+
+          // Open browser
+          const url = "https://github.com/apps/opencode-agent"
+          const command =
+            process.platform === "darwin"
+              ? `open "${url}"`
+              : process.platform === "win32"
+                ? `start "" "${url}"`
+                : `xdg-open "${url}"`
+
+          exec(command, (error) => {
+            if (error) {
+              prompts.log.warn(`Could not open browser. Please visit: ${url}`)
            }
+          })

-            prompts.outro(
-              [
-                "Next steps:",
-                "",
-                `    1. Commit the \`${WORKFLOW_FILE}\` file and push`,
-                step2,
-                "",
-                "    3. Go to a GitHub issue and comment `/oc summarize` to see the agent in action",
-                "",
-                "   Learn more about the GitHub agent - https://opencode.ai/docs/github/#usage-examples",
-              ].join("\n"),
-            )
-          }
-
-          async function getAppInfo() {
-            const project = Instance.project
-            if (project.vcs !== "git") {
-              prompts.log.error(`Could not find git repository. Please run this command from a git repository.`)
-              throw new UI.CancelledError()
-            }
-
-            // Get repo info
-            const info = await AppRuntime.runPromise(
-              Git.Service.use((git) => git.run(["remote", "get-url", "origin"], { cwd: Instance.worktree })),
-            ).then((x) => x.text().trim())
-            const parsed = parseGitHubRemote(info)
-            if (!parsed) {
-              prompts.log.error(`Could not find git repository. Please run this command from a git repository.`)
-              throw new UI.CancelledError()
-            }
-            return { owner: parsed.owner, repo: parsed.repo, root: Instance.worktree }
-          }
-
-          async function promptProvider() {
-            const priority: Record<string, number> = {
-              opencode: 0,
-              anthropic: 1,
-              openai: 2,
-              google: 3,
-            }
-            let provider = await prompts.select({
-              message: "Select provider",
-              maxItems: 8,
-              options: pipe(
-                providers,
-                values(),
-                sortBy(
-                  (x) => priority[x.id] ?? 99,
-                  (x) => x.name ?? x.id,
-                ),
-                map((x) => ({
-                  label: x.name,
-                  value: x.id,
-                  hint: priority[x.id] === 0 ? "recommended" : undefined,
-                })),
-              ),
-            })
-
-            if (prompts.isCancel(provider)) throw new UI.CancelledError()
-
-            return provider
-          }
-
-          async function promptModel() {
-            const providerData = providers[provider]!
-
-            const model = await prompts.select({
-              message: "Select model",
-              maxItems: 8,
-              options: pipe(
-                providerData.models,
-                values(),
-                sortBy((x) => x.name ?? x.id),
-                map((x) => ({
-                  label: x.name ?? x.id,
-                  value: x.id,
-                })),
-              ),
-            })
-
-            if (prompts.isCancel(model)) throw new UI.CancelledError()
-            return model
-          }
-
-          async function installGitHubApp() {
-            const s = prompts.spinner()
-            s.start("Installing GitHub app")
-
-            // Get installation
+          // Wait for installation
+          s.message("Waiting for GitHub app to be installed")
+          const MAX_RETRIES = 120
+          let retries = 0
+          do {
            const installation = await getInstallation()
-            if (installation) return s.stop("GitHub app already installed")
+            if (installation) break

-            // Open browser
-            const url = "https://github.com/apps/opencode-agent"
-            const command =
-              process.platform === "darwin"
-                ? `open "${url}"`
-                : process.platform === "win32"
-                  ? `start "" "${url}"`
-                  : `xdg-open "${url}"`
-
-            exec(command, (error) => {
-              if (error) {
-                prompts.log.warn(`Could not open browser. Please visit: ${url}`)
-              }
-            })
-
-            // Wait for installation
-            s.message("Waiting for GitHub app to be installed")
-            const MAX_RETRIES = 120
-            let retries = 0
-            do {
-              const installation = await getInstallation()
-              if (installation) break
-
-              if (retries > MAX_RETRIES) {
-                s.stop(
-                  `Failed to detect GitHub app installation. Make sure to install the app for the \`${app.owner}/${app.repo}\` repository.`,
-                )
-                throw new UI.CancelledError()
-              }
-
-              retries++
-              await sleep(1000)
-            } while (true) // oxlint-disable-line no-constant-condition
-
-            s.stop("Installed GitHub app")
-
-            async function getInstallation() {
-              return await fetch(
-                `https://api.opencode.ai/get_github_app_installation?owner=${app.owner}&repo=${app.repo}`,
+            if (retries > MAX_RETRIES) {
+              s.stop(
+                `Failed to detect GitHub app installation. Make sure to install the app for the \`${app.owner}/${app.repo}\` repository.`,
              )
-                .then((res) => res.json())
-                .then((data) => data.installation)
+              throw new UI.CancelledError()
            }
+
+            retries++
+            await sleep(1000)
+          } while (true) // oxlint-disable-line no-constant-condition
+
+          s.stop("Installed GitHub app")
+
+          async function getInstallation() {
+            return await fetch(
+              `https://api.opencode.ai/get_github_app_installation?owner=${app.owner}&repo=${app.repo}`,
+            )
+              .then((res) => res.json())
+              .then((data) => data.installation)
          }
+        }

-          async function addWorkflowFiles() {
-            const envStr =
-              provider === "amazon-bedrock"
-                ? ""
-                : `\n        env:${providers[provider].env.map((e) => `\n          ${e}: \${{ secrets.${e} }}`).join("")}`
+        async function addWorkflowFiles() {
+          const envStr =
+            provider === "amazon-bedrock"
+              ? ""
+              : `\n        env:${providers[provider].env.map((e) => `\n          ${e}: \${{ secrets.${e} }}`).join("")}`

-            await Filesystem.write(
-              path.join(app.root, WORKFLOW_FILE),
-              `name: opencode
+          await Filesystem.write(
+            path.join(app.root, WORKFLOW_FILE),
+            `name: opencode

 on:
  issue_comment:
@@ -414,17 +415,16 @@ jobs:
        uses: anomalyco/opencode/github@latest${envStr}
        with:
          model: ${provider}/${model}`,
-            )
+          )

-            prompts.log.success(`Added workflow file: "${WORKFLOW_FILE}"`)
-          }
+          prompts.log.success(`Added workflow file: "${WORKFLOW_FILE}"`)
        }
-      },
+      }
    })
-  },
+  }),
 })

-export const GithubRunCommand = cmd({
+export const GithubRunCommand = effectCmd({
  command: "run",
  describe: "run the GitHub agent",
  builder: (yargs) =>
@@ -437,8 +437,10 @@ export const GithubRunCommand = cmd({
        type: "string",
        describe: "GitHub personal access token (github_pat_********)",
      }),
-  async handler(args) {
-    await bootstrap(process.cwd(), async () => {
+  handler: Effect.fn("Cli.github.run")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return yield* Effect.die("InstanceRef not provided")
+    yield* Effect.promise(async () => {
      const isMock = args.token || args.event

      const context = isMock ? (JSON.parse(args.event!) as Context) : github.context
@@ -501,21 +503,21 @@ export const GithubRunCommand = cmd({
          : "issue"
        : undefined
      const gitText = async (args: string[]) => {
-        const result = await AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: Instance.worktree })))
+        const result = await AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: ctx.worktree })))
        if (result.exitCode !== 0) {
          throw new Process.RunFailedError(["git", ...args], result.exitCode, result.stdout, result.stderr)
        }
        return result.text().trim()
      }
      const gitRun = async (args: string[]) => {
-        const result = await AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: Instance.worktree })))
+        const result = await AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: ctx.worktree })))
        if (result.exitCode !== 0) {
          throw new Process.RunFailedError(["git", ...args], result.exitCode, result.stdout, result.stderr)
        }
        return result
      }
      const gitStatus = (args: string[]) =>
-        AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: Instance.worktree })))
+        AppRuntime.runPromise(Git.Service.use((git) => git.run(args, { cwd: ctx.worktree })))
      const commitChanges = async (summary: string, actor?: string) => {
        const args = ["commit", "-m", summary]
        if (actor) args.push("-m", `Co-authored-by: ${actor} <${actor}@users.noreply.github.com>`)
@@ -879,7 +881,7 @@ export const GithubRunCommand = cmd({
      function subscribeSessionEvents() {
        const TOOL: Record<string, [string, string]> = {
          todowrite: ["Todo", UI.Style.TEXT_WARNING_BOLD],
-          bash: ["Bash", UI.Style.TEXT_DANGER_BOLD],
+          bash: ["Shell", UI.Style.TEXT_DANGER_BOLD],
          edit: ["Edit", UI.Style.TEXT_SUCCESS_BOLD],
          glob: ["Glob", UI.Style.TEXT_INFO_BOLD],
          grep: ["Grep", UI.Style.TEXT_INFO_BOLD],
@@ -1645,5 +1647,5 @@ query($owner: String!, $repo: String!, $number: Int!) {
        })
      }
    })
-  },
+  }),
 })
--- a/packages/opencode/src/cli/cmd/import.ts
+++ b/packages/opencode/src/cli/cmd/import.ts
@@ -1,17 +1,14 @@
-import type { Argv } from "yargs"
 import type { Session as SDKSession, Message, Part } from "@opencode-ai/sdk/v2"
 import { Session } from "@/session/session"
 import { MessageV2 } from "../../session/message-v2"
-import { cmd } from "./cmd"
-import { bootstrap } from "../bootstrap"
+import { CliError, effectCmd } from "../effect-cmd"
 import { Database } from "@/storage/db"
 import { SessionTable, MessageTable, PartTable } from "../../session/session.sql"
-import { Instance } from "../../project/instance"
+import { InstanceRef } from "@/effect/instance-ref"
 import { ShareNext } from "@/share/share-next"
 import { EOL } from "os"
 import { Filesystem } from "@/util/filesystem"
-import { AppRuntime } from "@/effect/app-runtime"
-import { Schema } from "effect"
+import { Effect, Schema } from "effect"

 const decodeMessageInfo = Schema.decodeUnknownSync(MessageV2.Info)
 const decodePart = Schema.decodeUnknownSync(MessageV2.Part)
@@ -78,135 +75,143 @@ export function transformShareData(shareData: ShareData[]): {
  }
 }

-export const ImportCommand = cmd({
+type ExportData = { info: SDKSession; messages: Array<{ info: Message; parts: Part[] }> }
+
+export const ImportCommand = effectCmd({
  command: "import <file>",
  describe: "import session data from JSON file or URL",
-  builder: (yargs: Argv) => {
-    return yargs.positional("file", {
+  builder: (yargs) =>
+    yargs.positional("file", {
      describe: "path to JSON file or share URL",
      type: "string",
      demandOption: true,
+    }),
+  handler: Effect.fn("Cli.import")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return yield* Effect.die("InstanceRef not provided")
+    return yield* runImport(args.file, ctx.project.id)
+  }),
+})
+
+const runImport = Effect.fn("Cli.import.body")(function* (file: string, projectID: string) {
+  const share = yield* ShareNext.Service
+
+  let exportData: ExportData | undefined
+
+  const isUrl = file.startsWith("http://") || file.startsWith("https://")
+
+  if (isUrl) {
+    const slug = parseShareUrl(file)
+    if (!slug) {
+      const baseUrl = yield* Effect.orDie(share.url())
+      process.stdout.write(`Invalid URL format. Expected: ${baseUrl}/share/<slug>`)
+      process.stdout.write(EOL)
+      return
+    }
+
+    const baseUrl = new URL(file).origin
+    const req = yield* Effect.orDie(share.request())
+    const headers = shouldAttachShareAuthHeaders(file, req.baseUrl) ? req.headers : {}
+
+    const tryFetch = (url: string) =>
+      Effect.tryPromise({
+        try: () => fetch(url, { headers }),
+        catch: (e) =>
+          new CliError({
+            message: `Failed to fetch share data: ${e instanceof Error ? e.message : String(e)}`,
+          }),
+      })
+
+    const dataPath = req.api.data(slug)
+    let response = yield* tryFetch(`${baseUrl}${dataPath}`)
+
+    if (!response.ok && dataPath !== `/api/share/${slug}/data`) {
+      response = yield* tryFetch(`${baseUrl}/api/share/${slug}/data`)
+    }
+
+    if (!response.ok) {
+      process.stdout.write(`Failed to fetch share data: ${response.statusText}`)
+      process.stdout.write(EOL)
+      return
+    }
+
+    const shareData = yield* Effect.tryPromise({
+      try: () => response.json() as Promise<ShareData[]>,
+      catch: () => new CliError({ message: "Share data was not valid JSON" }),
    })
-  },
-  handler: async (args) => {
-    await bootstrap(process.cwd(), async () => {
-      let exportData:
-        | {
-            info: SDKSession
-            messages: Array<{
-              info: Message
-              parts: Part[]
-            }>
-          }
-        | undefined
+    const transformed = transformShareData(shareData)

-      const isUrl = args.file.startsWith("http://") || args.file.startsWith("https://")
+    if (!transformed) {
+      process.stdout.write(`Share not found or empty: ${slug}`)
+      process.stdout.write(EOL)
+      return
+    }

-      if (isUrl) {
-        const slug = parseShareUrl(args.file)
-        if (!slug) {
-          const baseUrl = await AppRuntime.runPromise(ShareNext.Service.use((svc) => svc.url()))
-          process.stdout.write(`Invalid URL format. Expected: ${baseUrl}/share/<slug>`)
-          process.stdout.write(EOL)
-          return
-        }
+    exportData = transformed
+  } else {
+    exportData = yield* Effect.promise(() =>
+      Filesystem.readJson<NonNullable<typeof exportData>>(file).catch(() => undefined),
+    )
+    if (!exportData) {
+      process.stdout.write(`File not found: ${file}`)
+      process.stdout.write(EOL)
+      return
+    }
+  }

-        const parsed = new URL(args.file)
-        const baseUrl = parsed.origin
-        const req = await AppRuntime.runPromise(ShareNext.Service.use((svc) => svc.request()))
-        const headers = shouldAttachShareAuthHeaders(args.file, req.baseUrl) ? req.headers : {}
+  if (!exportData) {
+    process.stdout.write(`Failed to read session data`)
+    process.stdout.write(EOL)
+    return
+  }

-        const dataPath = req.api.data(slug)
-        let response = await fetch(`${baseUrl}${dataPath}`, {
-          headers,
+  const info = Schema.decodeUnknownSync(Session.Info)({
+    ...exportData.info,
+    projectID,
+  }) as Session.Info
+  const row = Session.toRow(info)
+  Database.use((db) =>
+    db
+      .insert(SessionTable)
+      .values(row)
+      .onConflictDoUpdate({ target: SessionTable.id, set: { project_id: row.project_id } })
+      .run(),
+  )
+
+  for (const msg of exportData.messages) {
+    const msgInfo = decodeMessageInfo(msg.info) as MessageV2.Info
+    const { id, sessionID: _, ...msgData } = msgInfo
+    Database.use((db) =>
+      db
+        .insert(MessageTable)
+        .values({
+          id,
+          session_id: row.id,
+          time_created: msgInfo.time?.created ?? Date.now(),
+          data: msgData,
        })
+        .onConflictDoNothing()
+        .run(),
+    )

-        if (!response.ok && dataPath !== `/api/share/${slug}/data`) {
-          response = await fetch(`${baseUrl}/api/share/${slug}/data`, {
-            headers,
-          })
-        }
-
-        if (!response.ok) {
-          process.stdout.write(`Failed to fetch share data: ${response.statusText}`)
-          process.stdout.write(EOL)
-          return
-        }
-
-        const shareData: ShareData[] = await response.json()
-        const transformed = transformShareData(shareData)
-
-        if (!transformed) {
-          process.stdout.write(`Share not found or empty: ${slug}`)
-          process.stdout.write(EOL)
-          return
-        }
-
-        exportData = transformed
-      } else {
-        exportData = await Filesystem.readJson<NonNullable<typeof exportData>>(args.file).catch(() => undefined)
-        if (!exportData) {
-          process.stdout.write(`File not found: ${args.file}`)
-          process.stdout.write(EOL)
-          return
-        }
-      }
-
-      if (!exportData) {
-        process.stdout.write(`Failed to read session data`)
-        process.stdout.write(EOL)
-        return
-      }
-
-      const info = Schema.decodeUnknownSync(Session.Info)({
-        ...exportData.info,
-        projectID: Instance.project.id,
-      }) as Session.Info
-      const row = Session.toRow(info)
+    for (const part of msg.parts) {
+      const partInfo = decodePart(part) as MessageV2.Part
+      const { id: partId, sessionID: _s, messageID, ...partData } = partInfo
      Database.use((db) =>
        db
-          .insert(SessionTable)
-          .values(row)
-          .onConflictDoUpdate({ target: SessionTable.id, set: { project_id: row.project_id } })
+          .insert(PartTable)
+          .values({
+            id: partId,
+            message_id: messageID,
+            session_id: row.id,
+            data: partData,
+          })
+          .onConflictDoNothing()
          .run(),
      )
+    }
+  }

-      for (const msg of exportData.messages) {
-        const msgInfo = decodeMessageInfo(msg.info) as MessageV2.Info
-        const { id, sessionID: _, ...msgData } = msgInfo
-        Database.use((db) =>
-          db
-            .insert(MessageTable)
-            .values({
-              id,
-              session_id: row.id,
-              time_created: msgInfo.time?.created ?? Date.now(),
-              data: msgData,
-            })
-            .onConflictDoNothing()
-            .run(),
-        )
-
-        for (const part of msg.parts) {
-          const partInfo = decodePart(part) as MessageV2.Part
-          const { id: partId, sessionID: _s, messageID, ...partData } = partInfo
-          Database.use((db) =>
-            db
-              .insert(PartTable)
-              .values({
-                id: partId,
-                message_id: messageID,
-                session_id: row.id,
-                data: partData,
-              })
-              .onConflictDoNothing()
-              .run(),
-          )
-        }
-      }
-
-      process.stdout.write(`Imported session: ${exportData.info.id}`)
-      process.stdout.write(EOL)
-    })
-  },
+  process.stdout.write(`Imported session: ${exportData.info.id}`)
+  process.stdout.write(EOL)
 })
--- a/packages/opencode/src/cli/cmd/mcp.ts
+++ b/packages/opencode/src/cli/cmd/mcp.ts
--- a/packages/opencode/src/cli/cmd/models.ts
+++ b/packages/opencode/src/cli/cmd/models.ts
@@ -1,19 +1,16 @@
-import type { Argv } from "yargs"
-import { Instance } from "../../project/instance"
+import { EOL } from "os"
+import { Effect } from "effect"
 import { Provider } from "@/provider/provider"
 import { ProviderID } from "../../provider/schema"
 import { ModelsDev } from "@/provider/models"
-import { cmd } from "./cmd"
+import { effectCmd, fail } from "../effect-cmd"
 import { UI } from "../ui"
-import { EOL } from "os"
-import { AppRuntime } from "@/effect/app-runtime"
-import { Effect } from "effect"

-export const ModelsCommand = cmd({
+export const ModelsCommand = effectCmd({
  command: "models [provider]",
  describe: "list all available models",
-  builder: (yargs: Argv) => {
-    return yargs
+  builder: (yargs) =>
+    yargs
      .positional("provider", {
        describe: "provider ID to filter models by",
        type: "string",
@@ -26,63 +23,44 @@ export const ModelsCommand = cmd({
      .option("refresh", {
        describe: "refresh the models cache from models.dev",
        type: "boolean",
-      })
-  },
-  handler: async (args) => {
+      }),
+  handler: Effect.fn("Cli.models")(function* (args) {
    if (args.refresh) {
-      await ModelsDev.refresh(true)
+      yield* ModelsDev.Service.use((s) => s.refresh(true))
      UI.println(UI.Style.TEXT_SUCCESS_BOLD + "Models cache refreshed" + UI.Style.TEXT_NORMAL)
    }

-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        await AppRuntime.runPromise(
-          Effect.gen(function* () {
-            const svc = yield* Provider.Service
-            const providers = yield* svc.list()
+    const provider = yield* Provider.Service
+    const providers = yield* provider.list()

-            const print = (providerID: ProviderID, verbose?: boolean) => {
-              const provider = providers[providerID]
-              const sorted = Object.entries(provider.models).sort(([a], [b]) => a.localeCompare(b))
-              for (const [modelID, model] of sorted) {
-                process.stdout.write(`${providerID}/${modelID}`)
-                process.stdout.write(EOL)
-                if (verbose) {
-                  process.stdout.write(JSON.stringify(model, null, 2))
-                  process.stdout.write(EOL)
-                }
-              }
-            }
+    const print = (providerID: ProviderID, verbose?: boolean) => {
+      const p = providers[providerID]
+      const sorted = Object.entries(p.models).sort(([a], [b]) => a.localeCompare(b))
+      for (const [modelID, model] of sorted) {
+        process.stdout.write(`${providerID}/${modelID}`)
+        process.stdout.write(EOL)
+        if (verbose) {
+          process.stdout.write(JSON.stringify(model, null, 2))
+          process.stdout.write(EOL)
+        }
+      }
+    }

-            if (args.provider) {
-              const providerID = ProviderID.make(args.provider)
-              const provider = providers[providerID]
-              if (!provider) {
-                yield* Effect.sync(() => UI.error(`Provider not found: ${args.provider}`))
-                return
-              }
+    if (args.provider) {
+      const providerID = ProviderID.make(args.provider)
+      if (!providers[providerID]) return yield* fail(`Provider not found: ${args.provider}`)
+      print(providerID, args.verbose)
+      return
+    }

-              yield* Effect.sync(() => print(providerID, args.verbose))
-              return
-            }
-
-            const ids = Object.keys(providers).sort((a, b) => {
-              const aIsOpencode = a.startsWith("opencode")
-              const bIsOpencode = b.startsWith("opencode")
-              if (aIsOpencode && !bIsOpencode) return -1
-              if (!aIsOpencode && bIsOpencode) return 1
-              return a.localeCompare(b)
-            })
-
-            yield* Effect.sync(() => {
-              for (const providerID of ids) {
-                print(ProviderID.make(providerID), args.verbose)
-              }
-            })
-          }),
-        )
-      },
+    const ids = Object.keys(providers).sort((a, b) => {
+      const aIsOpencode = a.startsWith("opencode")
+      const bIsOpencode = b.startsWith("opencode")
+      if (aIsOpencode && !bIsOpencode) return -1
+      if (!aIsOpencode && bIsOpencode) return 1
+      return a.localeCompare(b)
    })
-  },
+
+    for (const providerID of ids) print(ProviderID.make(providerID), args.verbose)
+  }),
 })
--- a/packages/opencode/src/cli/cmd/plug.ts
+++ b/packages/opencode/src/cli/cmd/plug.ts
@@ -1,16 +1,16 @@
 import { intro, log, outro, spinner } from "@clack/prompts"
-import type { Argv } from "yargs"
+import { Effect } from "effect"

 import { ConfigPaths } from "@/config/paths"
 import { Global } from "@opencode-ai/core/global"
 import { installPlugin, patchPluginConfig, readPluginManifest } from "../../plugin/install"
 import { resolvePluginTarget } from "../../plugin/shared"
-import { Instance } from "../../project/instance"
 import { errorMessage } from "../../util/error"
 import { Filesystem } from "@/util/filesystem"
 import { Process } from "@/util/process"
 import { UI } from "../ui"
-import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
+import { InstanceRef } from "@/effect/instance-ref"

 type Spin = {
  start: (msg: string) => void
@@ -175,12 +175,12 @@ export function createPlugTask(input: PlugInput, dep: PlugDeps = defaultPlugDeps
  }
 }

-export const PluginCommand = cmd({
+export const PluginCommand = effectCmd({
  command: "plugin <module>",
  aliases: ["plug"],
  describe: "install plugin and update config",
-  builder: (yargs: Argv) => {
-    return yargs
+  builder: (yargs) =>
+    yargs
      .positional("module", {
        type: "string",
        describe: "npm module name",
@@ -196,9 +196,8 @@ export const PluginCommand = cmd({
        type: "boolean",
        default: false,
        describe: "replace existing plugin version",
-      })
-  },
-  handler: async (args) => {
+      }),
+  handler: Effect.fn("Cli.plug")(function* (args) {
    const mod = String(args.module ?? "").trim()
    if (!mod) {
      UI.error("module is required")
@@ -214,20 +213,18 @@ export const PluginCommand = cmd({
      global: Boolean(args.global),
      force: Boolean(args.force),
    })
-    let ok = true

-    await Instance.provide({
-      directory: process.cwd(),
-      fn: async () => {
-        ok = await run({
-          vcs: Instance.project.vcs,
-          worktree: Instance.worktree,
-          directory: Instance.directory,
-        })
-      },
-    })
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    const ok = yield* Effect.promise(() =>
+      run({
+        vcs: ctx.project.vcs,
+        worktree: ctx.worktree,
+        directory: ctx.directory,
+      }),
+    )

    outro("Done")
    if (!ok) process.exitCode = 1
-  },
+  }),
 })
--- a/packages/opencode/src/cli/cmd/pr.ts
+++ b/packages/opencode/src/cli/cmd/pr.ts
@@ -1,11 +1,11 @@
+import { Effect } from "effect"
 import { UI } from "../ui"
-import { cmd } from "./cmd"
-import { AppRuntime } from "@/effect/app-runtime"
+import { effectCmd, fail } from "../effect-cmd"
 import { Git } from "@/git"
-import { Instance } from "@/project/instance"
+import { InstanceRef } from "@/effect/instance-ref"
 import { Process } from "@/util/process"

-export const PrCommand = cmd({
+export const PrCommand = effectCmd({
  command: "pr <number>",
  describe: "fetch and checkout a GitHub PR branch, then run opencode",
  builder: (yargs) =>
@@ -14,125 +14,102 @@ export const PrCommand = cmd({
      describe: "PR number to checkout",
      demandOption: true,
    }),
-  async handler(args) {
-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        const project = Instance.project
-        if (project.vcs !== "git") {
-          UI.error("Could not find git repository. Please run this command from a git repository.")
-          process.exit(1)
+  handler: Effect.fn("Cli.pr")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return yield* fail("Could not load instance context")
+    if (ctx.project.vcs !== "git") {
+      return yield* fail("Could not find git repository. Please run this command from a git repository.")
+    }
+
+    const git = yield* Git.Service
+    const worktree = ctx.worktree
+
+    const prNumber = args.number
+    const localBranchName = `pr/${prNumber}`
+    UI.println(`Fetching and checking out PR #${prNumber}...`)
+
+    const checkout = yield* Effect.promise(() =>
+      Process.run(["gh", "pr", "checkout", `${prNumber}`, "--branch", localBranchName, "--force"], { nothrow: true }),
+    )
+    if (checkout.code !== 0) {
+      return yield* fail(`Failed to checkout PR #${prNumber}. Make sure you have gh CLI installed and authenticated.`)
+    }
+
+    const prInfoResult = yield* Effect.promise(() =>
+      Process.text(
+        [
+          "gh",
+          "pr",
+          "view",
+          `${prNumber}`,
+          "--json",
+          "headRepository,headRepositoryOwner,isCrossRepository,headRefName,body",
+        ],
+        { nothrow: true },
+      ),
+    )
+
+    let sessionId: string | undefined
+
+    if (prInfoResult.code === 0 && prInfoResult.text.trim()) {
+      const prInfo = JSON.parse(prInfoResult.text)
+
+      if (prInfo?.isCrossRepository && prInfo.headRepository && prInfo.headRepositoryOwner) {
+        const forkOwner = prInfo.headRepositoryOwner.login
+        const forkName = prInfo.headRepository.name
+        const remoteName = forkOwner
+
+        const remotes = (yield* git.run(["remote"], { cwd: worktree })).text().trim()
+        if (!remotes.split("\n").includes(remoteName)) {
+          yield* git.run(["remote", "add", remoteName, `https://github.com/${forkOwner}/${forkName}.git`], {
+            cwd: worktree,
+          })
+          UI.println(`Added fork remote: ${remoteName}`)
        }

-        const prNumber = args.number
-        const localBranchName = `pr/${prNumber}`
-        UI.println(`Fetching and checking out PR #${prNumber}...`)
+        yield* git.run(["branch", `--set-upstream-to=${remoteName}/${prInfo.headRefName}`, localBranchName], {
+          cwd: worktree,
+        })
+      }

-        // Use gh pr checkout with custom branch name
-        const result = await Process.run(
-          ["gh", "pr", "checkout", `${prNumber}`, "--branch", localBranchName, "--force"],
-          {
-            nothrow: true,
-          },
-        )
+      if (prInfo?.body) {
+        const sessionMatch = prInfo.body.match(/https:\/\/opncd\.ai\/s\/([a-zA-Z0-9_-]+)/)
+        if (sessionMatch) {
+          const sessionUrl = sessionMatch[0]
+          UI.println(`Found opencode session: ${sessionUrl}`)
+          UI.println(`Importing session...`)

-        if (result.code !== 0) {
-          UI.error(`Failed to checkout PR #${prNumber}. Make sure you have gh CLI installed and authenticated.`)
-          process.exit(1)
-        }
-
-        // Fetch PR info for fork handling and session link detection
-        const prInfoResult = await Process.text(
-          [
-            "gh",
-            "pr",
-            "view",
-            `${prNumber}`,
-            "--json",
-            "headRepository,headRepositoryOwner,isCrossRepository,headRefName,body",
-          ],
-          { nothrow: true },
-        )
-
-        let sessionId: string | undefined
-
-        if (prInfoResult.code === 0) {
-          const prInfoText = prInfoResult.text
-          if (prInfoText.trim()) {
-            const prInfo = JSON.parse(prInfoText)
-
-            // Handle fork PRs
-            if (prInfo && prInfo.isCrossRepository && prInfo.headRepository && prInfo.headRepositoryOwner) {
-              const forkOwner = prInfo.headRepositoryOwner.login
-              const forkName = prInfo.headRepository.name
-              const remoteName = forkOwner
-
-              // Check if remote already exists
-              const remotes = await AppRuntime.runPromise(
-                Git.Service.use((git) => git.run(["remote"], { cwd: Instance.worktree })),
-              ).then((x) => x.text().trim())
-              if (!remotes.split("\n").includes(remoteName)) {
-                await AppRuntime.runPromise(
-                  Git.Service.use((git) =>
-                    git.run(["remote", "add", remoteName, `https://github.com/${forkOwner}/${forkName}.git`], {
-                      cwd: Instance.worktree,
-                    }),
-                  ),
-                )
-                UI.println(`Added fork remote: ${remoteName}`)
-              }
-
-              // Set upstream to the fork so pushes go there
-              const headRefName = prInfo.headRefName
-              await AppRuntime.runPromise(
-                Git.Service.use((git) =>
-                  git.run(["branch", `--set-upstream-to=${remoteName}/${headRefName}`, localBranchName], {
-                    cwd: Instance.worktree,
-                  }),
-                ),
-              )
-            }
-
-            // Check for opencode session link in PR body
-            if (prInfo && prInfo.body) {
-              const sessionMatch = prInfo.body.match(/https:\/\/opncd\.ai\/s\/([a-zA-Z0-9_-]+)/)
-              if (sessionMatch) {
-                const sessionUrl = sessionMatch[0]
-                UI.println(`Found opencode session: ${sessionUrl}`)
-                UI.println(`Importing session...`)
-
-                const importResult = await Process.text(["opencode", "import", sessionUrl], {
-                  nothrow: true,
-                })
-                if (importResult.code === 0) {
-                  const importOutput = importResult.text.trim()
-                  // Extract session ID from the output (format: "Imported session: <session-id>")
-                  const sessionIdMatch = importOutput.match(/Imported session: ([a-zA-Z0-9_-]+)/)
-                  if (sessionIdMatch) {
-                    sessionId = sessionIdMatch[1]
-                    UI.println(`Session imported: ${sessionId}`)
-                  }
-                }
-              }
+          const importResult = yield* Effect.promise(() =>
+            Process.text(["opencode", "import", sessionUrl], { nothrow: true }),
+          )
+          if (importResult.code === 0) {
+            const sessionIdMatch = importResult.text.trim().match(/Imported session: ([a-zA-Z0-9_-]+)/)
+            if (sessionIdMatch) {
+              sessionId = sessionIdMatch[1]
+              UI.println(`Session imported: ${sessionId}`)
            }
          }
        }
+      }
+    }

-        UI.println(`Successfully checked out PR #${prNumber} as branch '${localBranchName}'`)
-        UI.println()
-        UI.println("Starting opencode...")
-        UI.println()
+    UI.println(`Successfully checked out PR #${prNumber} as branch '${localBranchName}'`)
+    UI.println()
+    UI.println("Starting opencode...")
+    UI.println()

-        const opencodeArgs = sessionId ? ["-s", sessionId] : []
-        const opencodeProcess = Process.spawn(["opencode", ...opencodeArgs], {
+    const opencodeArgs = sessionId ? ["-s", sessionId] : []
+    const code = yield* Effect.promise(
+      () =>
+        Process.spawn(["opencode", ...opencodeArgs], {
          stdin: "inherit",
          stdout: "inherit",
          stderr: "inherit",
          cwd: process.cwd(),
-        })
-        const code = await opencodeProcess.exited
-        if (code !== 0) throw new Error(`opencode exited with code ${code}`)
-      },
-    })
-  },
+        }).exited,
+    )
+    // Match legacy throw semantics — propagate as a defect so the top-level
+    // index.ts catch handles it identically (exit 1, "Unexpected error" banner).
+    if (code !== 0) return yield* Effect.die(new Error(`opencode exited with code ${code}`))
+  }),
 })
--- a/packages/opencode/src/cli/cmd/providers.ts
+++ b/packages/opencode/src/cli/cmd/providers.ts
@@ -1,16 +1,19 @@
 import { Auth } from "../../auth"
 import { AppRuntime } from "../../effect/app-runtime"
 import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
 import * as prompts from "@clack/prompts"
 import { UI } from "../ui"
 import { ModelsDev } from "@/provider/models"
+
+const getModels = () => AppRuntime.runPromise(ModelsDev.Service.use((s) => s.get()))
+const refreshModels = () => AppRuntime.runPromise(ModelsDev.Service.use((s) => s.refresh(true)))
 import { map, pipe, sortBy, values } from "remeda"
 import path from "path"
 import os from "os"
 import { Config } from "@/config/config"
 import { Global } from "@opencode-ai/core/global"
 import { Plugin } from "../../plugin"
-import { Instance } from "../../project/instance"
 import type { Hooks } from "@opencode-ai/plugin"
 import { Process } from "@/util/process"
 import { text } from "node:stream/consumers"
@@ -229,58 +232,59 @@ export const ProvidersCommand = cmd({
  async handler() {},
 })

-export const ProvidersListCommand = cmd({
+export const ProvidersListCommand = effectCmd({
  command: "list",
  aliases: ["ls"],
  describe: "list providers and credentials",
-  async handler(_args) {
-    UI.empty()
-    const authPath = path.join(Global.Path.data, "auth.json")
-    const homedir = os.homedir()
-    const displayPath = authPath.startsWith(homedir) ? authPath.replace(homedir, "~") : authPath
-    prompts.intro(`Credentials ${UI.Style.TEXT_DIM}${displayPath}`)
-    const results = await AppRuntime.runPromise(
-      Effect.gen(function* () {
-        const auth = yield* Auth.Service
-        return Object.entries(yield* auth.all())
-      }),
-    )
-    const database = await ModelsDev.get()
+  // Lists global credentials + provider env vars; no project instance needed.
+  instance: false,
+  handler: Effect.fn("Cli.providers.list")(function* (_args) {
+    const authSvc = yield* Auth.Service
+    const modelsDev = yield* ModelsDev.Service
+    yield* Effect.promise(async () => {
+      UI.empty()
+      const authPath = path.join(Global.Path.data, "auth.json")
+      const homedir = os.homedir()
+      const displayPath = authPath.startsWith(homedir) ? authPath.replace(homedir, "~") : authPath
+      prompts.intro(`Credentials ${UI.Style.TEXT_DIM}${displayPath}`)
+      const results = Object.entries(await Effect.runPromise(authSvc.all()))
+      const database = await Effect.runPromise(modelsDev.get())

-    for (const [providerID, result] of results) {
-      const name = database[providerID]?.name || providerID
-      prompts.log.info(`${name} ${UI.Style.TEXT_DIM}${result.type}`)
-    }
+      for (const [providerID, result] of results) {
+        const name = database[providerID]?.name || providerID
+        prompts.log.info(`${name} ${UI.Style.TEXT_DIM}${result.type}`)
+      }

-    prompts.outro(`${results.length} credentials`)
+      prompts.outro(`${results.length} credentials`)

-    const activeEnvVars: Array<{ provider: string; envVar: string }> = []
+      const activeEnvVars: Array<{ provider: string; envVar: string }> = []

-    for (const [providerID, provider] of Object.entries(database)) {
-      for (const envVar of provider.env) {
-        if (process.env[envVar]) {
-          activeEnvVars.push({
-            provider: provider.name || providerID,
-            envVar,
-          })
+      for (const [providerID, provider] of Object.entries(database)) {
+        for (const envVar of provider.env) {
+          if (process.env[envVar]) {
+            activeEnvVars.push({
+              provider: provider.name || providerID,
+              envVar,
+            })
+          }
        }
      }
-    }

-    if (activeEnvVars.length > 0) {
-      UI.empty()
-      prompts.intro("Environment")
+      if (activeEnvVars.length > 0) {
+        UI.empty()
+        prompts.intro("Environment")

-      for (const { provider, envVar } of activeEnvVars) {
-        prompts.log.info(`${provider} ${UI.Style.TEXT_DIM}${envVar}`)
+        for (const { provider, envVar } of activeEnvVars) {
+          prompts.log.info(`${provider} ${UI.Style.TEXT_DIM}${envVar}`)
+        }
+
+        prompts.outro(`${activeEnvVars.length} environment variable` + (activeEnvVars.length === 1 ? "" : "s"))
      }
-
-      prompts.outro(`${activeEnvVars.length} environment variable` + (activeEnvVars.length === 1 ? "" : "s"))
-    }
-  },
+    })
+  }),
 })

-export const ProvidersLoginCommand = cmd({
+export const ProvidersLoginCommand = effectCmd({
  command: "login [url]",
  describe: "log in to a provider",
  builder: (yargs) =>
@@ -299,228 +303,219 @@ export const ProvidersLoginCommand = cmd({
        describe: "login method label (skips method selection)",
        type: "string",
      }),
-  async handler(args) {
-    await Instance.provide({
-      directory: process.cwd(),
-      async fn() {
-        UI.empty()
-        prompts.intro("Add credential")
-        if (args.url) {
-          const url = args.url.replace(/\/+$/, "")
-          const wellknown = (await fetch(`${url}/.well-known/opencode`).then((x) => x.json())) as {
-            auth: { command: string[]; env: string }
-          }
-          prompts.log.info(`Running \`${wellknown.auth.command.join(" ")}\``)
-          const proc = Process.spawn(wellknown.auth.command, {
-            stdout: "pipe",
-          })
-          if (!proc.stdout) {
-            prompts.log.error("Failed")
-            prompts.outro("Done")
-            return
-          }
-          const [exit, token] = await Promise.all([proc.exited, text(proc.stdout)])
-          if (exit !== 0) {
-            prompts.log.error("Failed")
-            prompts.outro("Done")
-            return
-          }
-          await put(url, {
-            type: "wellknown",
-            key: wellknown.auth.env,
-            token: token.trim(),
-          })
-          prompts.log.success("Logged into " + url)
+  handler: Effect.fn("Cli.providers.login")(function* (args) {
+    const cfgSvc = yield* Config.Service
+    const pluginSvc = yield* Plugin.Service
+    yield* Effect.promise(async () => {
+      UI.empty()
+      prompts.intro("Add credential")
+      if (args.url) {
+        const url = args.url.replace(/\/+$/, "")
+        const wellknown = (await fetch(`${url}/.well-known/opencode`).then((x) => x.json())) as {
+          auth: { command: string[]; env: string }
+        }
+        prompts.log.info(`Running \`${wellknown.auth.command.join(" ")}\``)
+        const proc = Process.spawn(wellknown.auth.command, {
+          stdout: "pipe",
+          stderr: "inherit",
+        })
+        if (!proc.stdout) {
+          prompts.log.error("Failed")
          prompts.outro("Done")
          return
        }
-        await ModelsDev.refresh(true).catch(() => {})
-
-        const config = await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.get()))
-
-        const disabled = new Set(config.disabled_providers ?? [])
-        const enabled = config.enabled_providers ? new Set(config.enabled_providers) : undefined
-
-        const providers = await ModelsDev.get().then((x) => {
-          const filtered: Record<string, (typeof x)[string]> = {}
-          for (const [key, value] of Object.entries(x)) {
-            if ((enabled ? enabled.has(key) : true) && !disabled.has(key)) {
-              filtered[key] = value
-            }
-          }
-          return filtered
-        })
-        const hooks = await AppRuntime.runPromise(
-          Effect.gen(function* () {
-            const plugin = yield* Plugin.Service
-            return yield* plugin.list()
-          }),
-        )
-
-        const priority: Record<string, number> = {
-          opencode: 0,
-          openai: 1,
-          "github-copilot": 2,
-          google: 3,
-          anthropic: 4,
-          openrouter: 5,
-          vercel: 6,
+        const [exit, token] = await Promise.all([proc.exited, text(proc.stdout)])
+        if (exit !== 0) {
+          prompts.log.error("Failed")
+          prompts.outro("Done")
+          return
        }
-        const pluginProviders = resolvePluginProviders({
-          hooks,
-          existingProviders: providers,
-          disabled,
-          enabled,
-          providerNames: Object.fromEntries(Object.entries(config.provider ?? {}).map(([id, p]) => [id, p.name])),
+        await put(url, {
+          type: "wellknown",
+          key: wellknown.auth.env,
+          token: token.trim(),
        })
-        const options = [
-          ...pipe(
-            providers,
-            values(),
-            sortBy(
-              (x) => priority[x.id] ?? 99,
-              (x) => x.name ?? x.id,
-            ),
-            map((x) => ({
-              label: x.name,
-              value: x.id,
-              hint: {
-                opencode: "recommended",
-                openai: "ChatGPT Plus/Pro or API key",
-              }[x.id],
-            })),
+        prompts.log.success("Logged into " + url)
+        prompts.outro("Done")
+        return
+      }
+      await refreshModels().catch(() => {})
+
+      const config = await Effect.runPromise(cfgSvc.get())
+
+      const disabled = new Set(config.disabled_providers ?? [])
+      const enabled = config.enabled_providers ? new Set(config.enabled_providers) : undefined
+
+      const providers = await getModels().then((x) => {
+        const filtered: Record<string, (typeof x)[string]> = {}
+        for (const [key, value] of Object.entries(x)) {
+          if ((enabled ? enabled.has(key) : true) && !disabled.has(key)) {
+            filtered[key] = value
+          }
+        }
+        return filtered
+      })
+      const hooks = await Effect.runPromise(pluginSvc.list())
+
+      const priority: Record<string, number> = {
+        opencode: 0,
+        openai: 1,
+        "github-copilot": 2,
+        google: 3,
+        anthropic: 4,
+        openrouter: 5,
+        vercel: 6,
+      }
+      const pluginProviders = resolvePluginProviders({
+        hooks,
+        existingProviders: providers,
+        disabled,
+        enabled,
+        providerNames: Object.fromEntries(Object.entries(config.provider ?? {}).map(([id, p]) => [id, p.name])),
+      })
+      const options = [
+        ...pipe(
+          providers,
+          values(),
+          sortBy(
+            (x) => priority[x.id] ?? 99,
+            (x) => x.name ?? x.id,
          ),
-          ...pluginProviders.map((x) => ({
+          map((x) => ({
            label: x.name,
            value: x.id,
-            hint: "plugin",
+            hint: {
+              opencode: "recommended",
+              openai: "ChatGPT Plus/Pro or API key",
+            }[x.id],
          })),
-        ]
+        ),
+        ...pluginProviders.map((x) => ({
+          label: x.name,
+          value: x.id,
+          hint: "plugin",
+        })),
+      ]

-        let provider: string
-        if (args.provider) {
-          const input = args.provider
-          const byID = options.find((x) => x.value === input)
-          const byName = options.find((x) => x.label.toLowerCase() === input.toLowerCase())
-          const match = byID ?? byName
-          if (!match) {
-            prompts.log.error(`Unknown provider "${input}"`)
-            process.exit(1)
-          }
-          provider = match.value
-        } else {
-          const selected = await prompts.autocomplete({
-            message: "Select provider",
-            maxItems: 8,
-            options: [
-              ...options,
-              {
-                value: "other",
-                label: "Other",
-              },
-            ],
-          })
-          if (prompts.isCancel(selected)) throw new UI.CancelledError()
-          provider = selected as string
+      let provider: string
+      if (args.provider) {
+        const input = args.provider
+        const byID = options.find((x) => x.value === input)
+        const byName = options.find((x) => x.label.toLowerCase() === input.toLowerCase())
+        const match = byID ?? byName
+        if (!match) {
+          prompts.log.error(`Unknown provider "${input}"`)
+          process.exit(1)
        }
+        provider = match.value
+      } else {
+        const selected = await prompts.autocomplete({
+          message: "Select provider",
+          maxItems: 8,
+          options: [
+            ...options,
+            {
+              value: "other",
+              label: "Other",
+            },
+          ],
+        })
+        if (prompts.isCancel(selected)) throw new UI.CancelledError()
+        provider = selected as string
+      }

-        const plugin = hooks.findLast((x) => x.auth?.provider === provider)
-        if (plugin && plugin.auth) {
-          const handled = await handlePluginAuth({ auth: plugin.auth }, provider, args.method)
+      const plugin = hooks.findLast((x) => x.auth?.provider === provider)
+      if (plugin && plugin.auth) {
+        const handled = await handlePluginAuth({ auth: plugin.auth }, provider, args.method)
+        if (handled) return
+      }
+
+      if (provider === "other") {
+        const custom = await prompts.text({
+          message: "Enter provider id",
+          validate: (x) => (x && x.match(/^[0-9a-z-]+$/) ? undefined : "a-z, 0-9 and hyphens only"),
+        })
+        if (prompts.isCancel(custom)) throw new UI.CancelledError()
+        provider = custom.replace(/^@ai-sdk\//, "")
+
+        const customPlugin = hooks.findLast((x) => x.auth?.provider === provider)
+        if (customPlugin && customPlugin.auth) {
+          const handled = await handlePluginAuth({ auth: customPlugin.auth }, provider, args.method)
          if (handled) return
        }

-        if (provider === "other") {
-          const custom = await prompts.text({
-            message: "Enter provider id",
-            validate: (x) => (x && x.match(/^[0-9a-z-]+$/) ? undefined : "a-z, 0-9 and hyphens only"),
-          })
-          if (prompts.isCancel(custom)) throw new UI.CancelledError()
-          provider = custom.replace(/^@ai-sdk\//, "")
+        prompts.log.warn(
+          `This only stores a credential for ${provider} - you will need configure it in opencode.json, check the docs for examples.`,
+        )
+      }

-          const customPlugin = hooks.findLast((x) => x.auth?.provider === provider)
-          if (customPlugin && customPlugin.auth) {
-            const handled = await handlePluginAuth({ auth: customPlugin.auth }, provider, args.method)
-            if (handled) return
-          }
+      if (provider === "amazon-bedrock") {
+        prompts.log.info(
+          "Amazon Bedrock authentication priority:\n" +
+            "  1. Bearer token (AWS_BEARER_TOKEN_BEDROCK or /connect)\n" +
+            "  2. AWS credential chain (profile, access keys, IAM roles, EKS IRSA)\n\n" +
+            "Configure via opencode.json options (profile, region, endpoint) or\n" +
+            "AWS environment variables (AWS_PROFILE, AWS_REGION, AWS_ACCESS_KEY_ID, AWS_WEB_IDENTITY_TOKEN_FILE).",
+        )
+      }

-          prompts.log.warn(
-            `This only stores a credential for ${provider} - you will need configure it in opencode.json, check the docs for examples.`,
-          )
-        }
+      if (provider === "opencode") {
+        prompts.log.info("Create an api key at https://opencode.ai/auth")
+      }

-        if (provider === "amazon-bedrock") {
-          prompts.log.info(
-            "Amazon Bedrock authentication priority:\n" +
-              "  1. Bearer token (AWS_BEARER_TOKEN_BEDROCK or /connect)\n" +
-              "  2. AWS credential chain (profile, access keys, IAM roles, EKS IRSA)\n\n" +
-              "Configure via opencode.json options (profile, region, endpoint) or\n" +
-              "AWS environment variables (AWS_PROFILE, AWS_REGION, AWS_ACCESS_KEY_ID, AWS_WEB_IDENTITY_TOKEN_FILE).",
-          )
-        }
+      if (provider === "vercel") {
+        prompts.log.info("You can create an api key at https://vercel.link/ai-gateway-token")
+      }

-        if (provider === "opencode") {
-          prompts.log.info("Create an api key at https://opencode.ai/auth")
-        }
+      if (["cloudflare", "cloudflare-ai-gateway"].includes(provider)) {
+        prompts.log.info(
+          "Cloudflare AI Gateway can be configured with CLOUDFLARE_GATEWAY_ID, CLOUDFLARE_ACCOUNT_ID, and CLOUDFLARE_API_TOKEN environment variables. Read more: https://opencode.ai/docs/providers/#cloudflare-ai-gateway",
+        )
+      }

-        if (provider === "vercel") {
-          prompts.log.info("You can create an api key at https://vercel.link/ai-gateway-token")
-        }
+      const key = await prompts.password({
+        message: "Enter your API key",
+        validate: (x) => (x && x.length > 0 ? undefined : "Required"),
+      })
+      if (prompts.isCancel(key)) throw new UI.CancelledError()
+      await put(provider, {
+        type: "api",
+        key,
+      })

-        if (["cloudflare", "cloudflare-ai-gateway"].includes(provider)) {
-          prompts.log.info(
-            "Cloudflare AI Gateway can be configured with CLOUDFLARE_GATEWAY_ID, CLOUDFLARE_ACCOUNT_ID, and CLOUDFLARE_API_TOKEN environment variables. Read more: https://opencode.ai/docs/providers/#cloudflare-ai-gateway",
-          )
-        }
-
-        const key = await prompts.password({
-          message: "Enter your API key",
-          validate: (x) => (x && x.length > 0 ? undefined : "Required"),
-        })
-        if (prompts.isCancel(key)) throw new UI.CancelledError()
-        await put(provider, {
-          type: "api",
-          key,
-        })
-
-        prompts.outro("Done")
-      },
+      prompts.outro("Done")
    })
-  },
+  }),
 })

-export const ProvidersLogoutCommand = cmd({
+export const ProvidersLogoutCommand = effectCmd({
  command: "logout",
  describe: "log out from a configured provider",
-  async handler(_args) {
-    UI.empty()
-    const credentials: Array<[string, Auth.Info]> = await AppRuntime.runPromise(
-      Effect.gen(function* () {
-        const auth = yield* Auth.Service
-        return Object.entries(yield* auth.all())
-      }),
-    )
-    prompts.intro("Remove credential")
-    if (credentials.length === 0) {
-      prompts.log.error("No credentials found")
-      return
-    }
-    const database = await ModelsDev.get()
-    const selected = await prompts.select({
-      message: "Select provider",
-      options: credentials.map(([key, value]) => ({
-        label: (database[key]?.name || key) + UI.Style.TEXT_DIM + " (" + value.type + ")",
-        value: key,
-      })),
+  // Removes a global auth credential; no project instance needed.
+  instance: false,
+  handler: Effect.fn("Cli.providers.logout")(function* (_args) {
+    const authSvc = yield* Auth.Service
+    const modelsDev = yield* ModelsDev.Service
+    yield* Effect.promise(async () => {
+      UI.empty()
+      const credentials: Array<[string, Auth.Info]> = Object.entries(await Effect.runPromise(authSvc.all()))
+      prompts.intro("Remove credential")
+      if (credentials.length === 0) {
+        prompts.log.error("No credentials found")
+        return
+      }
+      const database = await Effect.runPromise(modelsDev.get())
+      const selected = await prompts.select({
+        message: "Select provider",
+        options: credentials.map(([key, value]) => ({
+          label: (database[key]?.name || key) + UI.Style.TEXT_DIM + " (" + value.type + ")",
+          value: key,
+        })),
+      })
+      if (prompts.isCancel(selected)) throw new UI.CancelledError()
+      const providerID = selected as string
+      await Effect.runPromise(authSvc.remove(providerID))
+      prompts.outro("Logout successful")
    })
-    if (prompts.isCancel(selected)) throw new UI.CancelledError()
-    const providerID = selected as string
-    await AppRuntime.runPromise(
-      Effect.gen(function* () {
-        const auth = yield* Auth.Service
-        yield* auth.remove(providerID)
-      }),
-    )
-    prompts.outro("Logout successful")
-  },
+  }),
 })
--- a/packages/opencode/src/cli/cmd/run.ts
+++ b/packages/opencode/src/cli/cmd/run.ts
@@ -1,10 +1,10 @@
 import type { Argv } from "yargs"
 import path from "path"
 import { pathToFileURL } from "url"
+import { Effect } from "effect"
 import { UI } from "../ui"
-import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
 import { Flag } from "@opencode-ai/core/flag/flag"
-import { bootstrap } from "../bootstrap"
 import { EOL } from "os"
 import { Filesystem } from "@/util/filesystem"
 import { createOpencodeClient, type OpencodeClient, type ToolPart } from "@opencode-ai/sdk/v2"
@@ -22,7 +22,8 @@ import { WriteTool } from "../../tool/write"
 import { WebSearchTool } from "../../tool/websearch"
 import { TaskTool } from "../../tool/task"
 import { SkillTool } from "../../tool/skill"
-import { BashTool } from "../../tool/bash"
+import { ShellTool } from "../../tool/shell"
+import { ShellID } from "../../tool/shell/id"
 import { TodoWriteTool } from "../../tool/todo"
 import { Locale } from "@/util/locale"
 import { AppRuntime } from "@/effect/app-runtime"
@@ -175,7 +176,7 @@ function skill(info: ToolProps<typeof SkillTool>) {
  })
 }

-function bash(info: ToolProps<typeof BashTool>) {
+function shell(info: ToolProps<typeof ShellTool>) {
  const output = info.part.state.status === "completed" ? info.part.state.output?.trim() : undefined
  block(
    {
@@ -202,11 +203,17 @@ function normalizePath(input?: string) {
  return input
 }

-export const RunCommand = cmd({
+export const RunCommand = effectCmd({
  command: "run [message..]",
  describe: "run opencode with a message",
-  builder: (yargs: Argv) => {
-    return yargs
+  // --attach connects to a remote server (no local instance needed); the
+  // default path runs an in-process server and needs the project instance.
+  instance: (args) => !args.attach,
+  // For --dir without --attach, load instance for the resolved target dir.
+  // The handler also chdirs (preserving the legacy order: chdir → file resolution).
+  directory: (args) => (args.dir && !args.attach ? path.resolve(process.cwd(), args.dir) : process.cwd()),
+  builder: (yargs: Argv) =>
+    yargs
      .positional("message", {
        describe: "message to send",
        type: "string",
@@ -290,291 +297,313 @@ export const RunCommand = cmd({
        type: "boolean",
        describe: "auto-approve permissions that are not explicitly denied (dangerous!)",
        default: false,
-      })
-  },
-  handler: async (args) => {
-    let message = [...args.message, ...(args["--"] || [])]
-      .map((arg) => (arg.includes(" ") ? `"${arg.replace(/"/g, '\\"')}"` : arg))
-      .join(" ")
+      }),
+  handler: Effect.fn("Cli.run")(function* (args) {
+    yield* Effect.promise(async () => {
+      let message = [...args.message, ...(args["--"] || [])]
+        .map((arg) => (arg.includes(" ") ? `"${arg.replace(/"/g, '\\"')}"` : arg))
+        .join(" ")

-    const directory = (() => {
-      if (!args.dir) return undefined
-      if (args.attach) return args.dir
-      try {
-        process.chdir(args.dir)
-        return process.cwd()
-      } catch {
-        UI.error("Failed to change directory to " + args.dir)
-        process.exit(1)
-      }
-    })()
-
-    const files: { type: "file"; url: string; filename: string; mime: string }[] = []
-    if (args.file) {
-      const list = Array.isArray(args.file) ? args.file : [args.file]
-
-      for (const filePath of list) {
-        const resolvedPath = path.resolve(process.cwd(), filePath)
-        if (!(await Filesystem.exists(resolvedPath))) {
-          UI.error(`File not found: ${filePath}`)
+      const directory = (() => {
+        if (!args.dir) return undefined
+        if (args.attach) return args.dir
+        try {
+          process.chdir(args.dir)
+          return process.cwd()
+        } catch {
+          UI.error("Failed to change directory to " + args.dir)
          process.exit(1)
        }
+      })()

-        const mime = (await Filesystem.isDir(resolvedPath)) ? "application/x-directory" : "text/plain"
+      const files: { type: "file"; url: string; filename: string; mime: string }[] = []
+      if (args.file) {
+        const list = Array.isArray(args.file) ? args.file : [args.file]

-        files.push({
-          type: "file",
-          url: pathToFileURL(resolvedPath).href,
-          filename: path.basename(resolvedPath),
-          mime,
-        })
-      }
-    }
-
-    if (!process.stdin.isTTY) message += "\n" + (await Bun.stdin.text())
-
-    if (message.trim().length === 0 && !args.command) {
-      UI.error("You must provide a message or a command")
-      process.exit(1)
-    }
-
-    if (args.fork && !args.continue && !args.session) {
-      UI.error("--fork requires --continue or --session")
-      process.exit(1)
-    }
-
-    const rules: Permission.Ruleset = [
-      {
-        permission: "question",
-        action: "deny",
-        pattern: "*",
-      },
-      {
-        permission: "plan_enter",
-        action: "deny",
-        pattern: "*",
-      },
-      {
-        permission: "plan_exit",
-        action: "deny",
-        pattern: "*",
-      },
-    ]
-
-    function title() {
-      if (args.title === undefined) return
-      if (args.title !== "") return args.title
-      return message.slice(0, 50) + (message.length > 50 ? "..." : "")
-    }
-
-    async function session(sdk: OpencodeClient) {
-      const baseID = args.continue ? (await sdk.session.list()).data?.find((s) => !s.parentID)?.id : args.session
-
-      if (baseID && args.fork) {
-        const forked = await sdk.session.fork({ sessionID: baseID })
-        return forked.data?.id
-      }
-
-      if (baseID) return baseID
-
-      const name = title()
-      const result = await sdk.session.create({ title: name, permission: rules })
-      return result.data?.id
-    }
-
-    async function share(sdk: OpencodeClient, sessionID: string) {
-      const cfg = await sdk.config.get()
-      if (!cfg.data) return
-      if (cfg.data.share !== "auto" && !Flag.OPENCODE_AUTO_SHARE && !args.share) return
-      const res = await sdk.session.share({ sessionID }).catch((error) => {
-        if (error instanceof Error && error.message.includes("disabled")) {
-          UI.println(UI.Style.TEXT_DANGER_BOLD + "!  " + error.message)
-        }
-        return { error }
-      })
-      if (!res.error && "data" in res && res.data?.share?.url) {
-        UI.println(UI.Style.TEXT_INFO_BOLD + "~  " + res.data.share.url)
-      }
-    }
-
-    async function execute(sdk: OpencodeClient) {
-      function tool(part: ToolPart) {
-        try {
-          if (part.tool === "bash") return bash(props<typeof BashTool>(part))
-          if (part.tool === "glob") return glob(props<typeof GlobTool>(part))
-          if (part.tool === "grep") return grep(props<typeof GrepTool>(part))
-          if (part.tool === "read") return read(props<typeof ReadTool>(part))
-          if (part.tool === "write") return write(props<typeof WriteTool>(part))
-          if (part.tool === "webfetch") return webfetch(props<typeof WebFetchTool>(part))
-          if (part.tool === "edit") return edit(props<typeof EditTool>(part))
-          if (part.tool === "websearch") return websearch(props<typeof WebSearchTool>(part))
-          if (part.tool === "task") return task(props<typeof TaskTool>(part))
-          if (part.tool === "todowrite") return todo(props<typeof TodoWriteTool>(part))
-          if (part.tool === "skill") return skill(props<typeof SkillTool>(part))
-          return fallback(part)
-        } catch {
-          return fallback(part)
-        }
-      }
-
-      function emit(type: string, data: Record<string, unknown>) {
-        if (args.format === "json") {
-          process.stdout.write(JSON.stringify({ type, timestamp: Date.now(), sessionID, ...data }) + EOL)
-          return true
-        }
-        return false
-      }
-
-      const events = await sdk.event.subscribe()
-      let error: string | undefined
-
-      async function loop() {
-        const toggles = new Map<string, boolean>()
-
-        for await (const event of events.stream) {
-          if (
-            event.type === "message.updated" &&
-            event.properties.info.role === "assistant" &&
-            args.format !== "json" &&
-            toggles.get("start") !== true
-          ) {
-            UI.empty()
-            UI.println(`> ${event.properties.info.agent} · ${event.properties.info.modelID}`)
-            UI.empty()
-            toggles.set("start", true)
+        for (const filePath of list) {
+          const resolvedPath = path.resolve(process.cwd(), filePath)
+          if (!(await Filesystem.exists(resolvedPath))) {
+            UI.error(`File not found: ${filePath}`)
+            process.exit(1)
          }

-          if (event.type === "message.part.updated") {
-            const part = event.properties.part
-            if (part.sessionID !== sessionID) continue
+          const mime = (await Filesystem.isDir(resolvedPath)) ? "application/x-directory" : "text/plain"

-            if (part.type === "tool" && (part.state.status === "completed" || part.state.status === "error")) {
-              if (emit("tool_use", { part })) continue
-              if (part.state.status === "completed") {
-                tool(part)
-                continue
+          files.push({
+            type: "file",
+            url: pathToFileURL(resolvedPath).href,
+            filename: path.basename(resolvedPath),
+            mime,
+          })
+        }
+      }
+
+      if (!process.stdin.isTTY) message += "\n" + (await Bun.stdin.text())
+
+      if (message.trim().length === 0 && !args.command) {
+        UI.error("You must provide a message or a command")
+        process.exit(1)
+      }
+
+      if (args.fork && !args.continue && !args.session) {
+        UI.error("--fork requires --continue or --session")
+        process.exit(1)
+      }
+
+      const rules: Permission.Ruleset = [
+        {
+          permission: "question",
+          action: "deny",
+          pattern: "*",
+        },
+        {
+          permission: "plan_enter",
+          action: "deny",
+          pattern: "*",
+        },
+        {
+          permission: "plan_exit",
+          action: "deny",
+          pattern: "*",
+        },
+      ]
+
+      function title() {
+        if (args.title === undefined) return
+        if (args.title !== "") return args.title
+        return message.slice(0, 50) + (message.length > 50 ? "..." : "")
+      }
+
+      async function session(sdk: OpencodeClient) {
+        const baseID = args.continue ? (await sdk.session.list()).data?.find((s) => !s.parentID)?.id : args.session
+
+        if (baseID && args.fork) {
+          const forked = await sdk.session.fork({ sessionID: baseID })
+          return forked.data?.id
+        }
+
+        if (baseID) return baseID
+
+        const name = title()
+        const result = await sdk.session.create({ title: name, permission: rules })
+        return result.data?.id
+      }
+
+      async function share(sdk: OpencodeClient, sessionID: string) {
+        const cfg = await sdk.config.get()
+        if (!cfg.data) return
+        if (cfg.data.share !== "auto" && !Flag.OPENCODE_AUTO_SHARE && !args.share) return
+        const res = await sdk.session.share({ sessionID }).catch((error) => {
+          if (error instanceof Error && error.message.includes("disabled")) {
+            UI.println(UI.Style.TEXT_DANGER_BOLD + "!  " + error.message)
+          }
+          return { error }
+        })
+        if (!res.error && "data" in res && res.data?.share?.url) {
+          UI.println(UI.Style.TEXT_INFO_BOLD + "~  " + res.data.share.url)
+        }
+      }
+
+      async function execute(sdk: OpencodeClient) {
+        function tool(part: ToolPart) {
+          try {
+            if (part.tool === ShellID.ToolID) return shell(props<typeof ShellTool>(part))
+            if (part.tool === "glob") return glob(props<typeof GlobTool>(part))
+            if (part.tool === "grep") return grep(props<typeof GrepTool>(part))
+            if (part.tool === "read") return read(props<typeof ReadTool>(part))
+            if (part.tool === "write") return write(props<typeof WriteTool>(part))
+            if (part.tool === "webfetch") return webfetch(props<typeof WebFetchTool>(part))
+            if (part.tool === "edit") return edit(props<typeof EditTool>(part))
+            if (part.tool === "websearch") return websearch(props<typeof WebSearchTool>(part))
+            if (part.tool === "task") return task(props<typeof TaskTool>(part))
+            if (part.tool === "todowrite") return todo(props<typeof TodoWriteTool>(part))
+            if (part.tool === "skill") return skill(props<typeof SkillTool>(part))
+            return fallback(part)
+          } catch {
+            return fallback(part)
+          }
+        }
+
+        function emit(type: string, data: Record<string, unknown>) {
+          if (args.format === "json") {
+            process.stdout.write(JSON.stringify({ type, timestamp: Date.now(), sessionID, ...data }) + EOL)
+            return true
+          }
+          return false
+        }
+
+        const events = await sdk.event.subscribe()
+        let error: string | undefined
+
+        async function loop() {
+          const toggles = new Map<string, boolean>()
+
+          for await (const event of events.stream) {
+            if (
+              event.type === "message.updated" &&
+              event.properties.info.role === "assistant" &&
+              args.format !== "json" &&
+              toggles.get("start") !== true
+            ) {
+              UI.empty()
+              UI.println(`> ${event.properties.info.agent} · ${event.properties.info.modelID}`)
+              UI.empty()
+              toggles.set("start", true)
+            }
+
+            if (event.type === "message.part.updated") {
+              const part = event.properties.part
+              if (part.sessionID !== sessionID) continue
+
+              if (part.type === "tool" && (part.state.status === "completed" || part.state.status === "error")) {
+                if (emit("tool_use", { part })) continue
+                if (part.state.status === "completed") {
+                  tool(part)
+                  continue
+                }
+                inline({
+                  icon: "✗",
+                  title: `${part.tool} failed`,
+                })
+                UI.error(part.state.error)
              }
-              inline({
-                icon: "✗",
-                title: `${part.tool} failed`,
-              })
-              UI.error(part.state.error)
+
+              if (
+                part.type === "tool" &&
+                part.tool === "task" &&
+                part.state.status === "running" &&
+                args.format !== "json"
+              ) {
+                if (toggles.get(part.id) === true) continue
+                task(props<typeof TaskTool>(part))
+                toggles.set(part.id, true)
+              }
+
+              if (part.type === "step-start") {
+                if (emit("step_start", { part })) continue
+              }
+
+              if (part.type === "step-finish") {
+                if (emit("step_finish", { part })) continue
+              }
+
+              if (part.type === "text" && part.time?.end) {
+                if (emit("text", { part })) continue
+                const text = part.text.trim()
+                if (!text) continue
+                if (!process.stdout.isTTY) {
+                  process.stdout.write(text + EOL)
+                  continue
+                }
+                UI.empty()
+                UI.println(text)
+                UI.empty()
+              }
+
+              if (part.type === "reasoning" && part.time?.end && args.thinking) {
+                if (emit("reasoning", { part })) continue
+                const text = part.text.trim()
+                if (!text) continue
+                const line = `Thinking: ${text}`
+                if (process.stdout.isTTY) {
+                  UI.empty()
+                  UI.println(`${UI.Style.TEXT_DIM}\u001b[3m${line}\u001b[0m${UI.Style.TEXT_NORMAL}`)
+                  UI.empty()
+                  continue
+                }
+                process.stdout.write(line + EOL)
+              }
+            }
+
+            if (event.type === "session.error") {
+              const props = event.properties
+              if (props.sessionID !== sessionID || !props.error) continue
+              let err = String(props.error.name)
+              if ("data" in props.error && props.error.data && "message" in props.error.data) {
+                err = String(props.error.data.message)
+              }
+              error = error ? error + EOL + err : err
+              if (emit("error", { error: props.error })) continue
+              UI.error(err)
            }

            if (
-              part.type === "tool" &&
-              part.tool === "task" &&
-              part.state.status === "running" &&
-              args.format !== "json"
+              event.type === "session.status" &&
+              event.properties.sessionID === sessionID &&
+              event.properties.status.type === "idle"
            ) {
-              if (toggles.get(part.id) === true) continue
-              task(props<typeof TaskTool>(part))
-              toggles.set(part.id, true)
+              break
            }

-            if (part.type === "step-start") {
-              if (emit("step_start", { part })) continue
-            }
+            if (event.type === "permission.asked") {
+              const permission = event.properties
+              if (permission.sessionID !== sessionID) continue

-            if (part.type === "step-finish") {
-              if (emit("step_finish", { part })) continue
-            }
-
-            if (part.type === "text" && part.time?.end) {
-              if (emit("text", { part })) continue
-              const text = part.text.trim()
-              if (!text) continue
-              if (!process.stdout.isTTY) {
-                process.stdout.write(text + EOL)
-                continue
+              if (args["dangerously-skip-permissions"]) {
+                await sdk.permission.reply({
+                  requestID: permission.id,
+                  reply: "once",
+                })
+              } else {
+                UI.println(
+                  UI.Style.TEXT_WARNING_BOLD + "!",
+                  UI.Style.TEXT_NORMAL +
+                    `permission requested: ${permission.permission} (${permission.patterns.join(", ")}); auto-rejecting`,
+                )
+                await sdk.permission.reply({
+                  requestID: permission.id,
+                  reply: "reject",
+                })
              }
-              UI.empty()
-              UI.println(text)
-              UI.empty()
-            }
-
-            if (part.type === "reasoning" && part.time?.end && args.thinking) {
-              if (emit("reasoning", { part })) continue
-              const text = part.text.trim()
-              if (!text) continue
-              const line = `Thinking: ${text}`
-              if (process.stdout.isTTY) {
-                UI.empty()
-                UI.println(`${UI.Style.TEXT_DIM}\u001b[3m${line}\u001b[0m${UI.Style.TEXT_NORMAL}`)
-                UI.empty()
-                continue
-              }
-              process.stdout.write(line + EOL)
-            }
-          }
-
-          if (event.type === "session.error") {
-            const props = event.properties
-            if (props.sessionID !== sessionID || !props.error) continue
-            let err = String(props.error.name)
-            if ("data" in props.error && props.error.data && "message" in props.error.data) {
-              err = String(props.error.data.message)
-            }
-            error = error ? error + EOL + err : err
-            if (emit("error", { error: props.error })) continue
-            UI.error(err)
-          }
-
-          if (
-            event.type === "session.status" &&
-            event.properties.sessionID === sessionID &&
-            event.properties.status.type === "idle"
-          ) {
-            break
-          }
-
-          if (event.type === "permission.asked") {
-            const permission = event.properties
-            if (permission.sessionID !== sessionID) continue
-
-            if (args["dangerously-skip-permissions"]) {
-              await sdk.permission.reply({
-                requestID: permission.id,
-                reply: "once",
-              })
-            } else {
-              UI.println(
-                UI.Style.TEXT_WARNING_BOLD + "!",
-                UI.Style.TEXT_NORMAL +
-                  `permission requested: ${permission.permission} (${permission.patterns.join(", ")}); auto-rejecting`,
-              )
-              await sdk.permission.reply({
-                requestID: permission.id,
-                reply: "reject",
-              })
            }
          }
        }
-      }

-      // Validate agent if specified
-      const agent = await (async () => {
-        if (!args.agent) return undefined
-        const name = args.agent
+        // Validate agent if specified
+        const agent = await (async () => {
+          if (!args.agent) return undefined
+          const name = args.agent

-        // When attaching, validate against the running server instead of local Instance state.
-        if (args.attach) {
-          const modes = await sdk.app
-            .agents(undefined, { throwOnError: true })
-            .then((x) => x.data ?? [])
-            .catch(() => undefined)
+          // When attaching, validate against the running server instead of local Instance state.
+          if (args.attach) {
+            const modes = await sdk.app
+              .agents(undefined, { throwOnError: true })
+              .then((x) => x.data ?? [])
+              .catch(() => undefined)

-          if (!modes) {
-            UI.println(
-              UI.Style.TEXT_WARNING_BOLD + "!",
-              UI.Style.TEXT_NORMAL,
-              `failed to list agents from ${args.attach}. Falling back to default agent`,
-            )
-            return undefined
+            if (!modes) {
+              UI.println(
+                UI.Style.TEXT_WARNING_BOLD + "!",
+                UI.Style.TEXT_NORMAL,
+                `failed to list agents from ${args.attach}. Falling back to default agent`,
+              )
+              return undefined
+            }
+
+            const agent = modes.find((a) => a.name === name)
+            if (!agent) {
+              UI.println(
+                UI.Style.TEXT_WARNING_BOLD + "!",
+                UI.Style.TEXT_NORMAL,
+                `agent "${name}" not found. Falling back to default agent`,
+              )
+              return undefined
+            }
+
+            if (agent.mode === "subagent") {
+              UI.println(
+                UI.Style.TEXT_WARNING_BOLD + "!",
+                UI.Style.TEXT_NORMAL,
+                `agent "${name}" is a subagent, not a primary agent. Falling back to default agent`,
+              )
+              return undefined
+            }
+
+            return name
          }

-          const agent = modes.find((a) => a.name === name)
-          if (!agent) {
+          const entry = await AppRuntime.runPromise(Agent.Service.use((svc) => svc.get(name)))
+          if (!entry) {
            UI.println(
              UI.Style.TEXT_WARNING_BOLD + "!",
              UI.Style.TEXT_NORMAL,
@@ -582,8 +611,7 @@ export const RunCommand = cmd({
            )
            return undefined
          }
-
-          if (agent.mode === "subagent") {
+          if (entry.mode === "subagent") {
            UI.println(
              UI.Style.TEXT_WARNING_BOLD + "!",
              UI.Style.TEXT_NORMAL,
@@ -591,76 +619,54 @@ export const RunCommand = cmd({
            )
            return undefined
          }
-
          return name
+        })()
+
+        const sessionID = await session(sdk)
+        if (!sessionID) {
+          UI.error("Session not found")
+          process.exit(1)
        }
+        await share(sdk, sessionID)

-        const entry = await AppRuntime.runPromise(Agent.Service.use((svc) => svc.get(name)))
-        if (!entry) {
-          UI.println(
-            UI.Style.TEXT_WARNING_BOLD + "!",
-            UI.Style.TEXT_NORMAL,
-            `agent "${name}" not found. Falling back to default agent`,
-          )
-          return undefined
-        }
-        if (entry.mode === "subagent") {
-          UI.println(
-            UI.Style.TEXT_WARNING_BOLD + "!",
-            UI.Style.TEXT_NORMAL,
-            `agent "${name}" is a subagent, not a primary agent. Falling back to default agent`,
-          )
-          return undefined
-        }
-        return name
-      })()
-
-      const sessionID = await session(sdk)
-      if (!sessionID) {
-        UI.error("Session not found")
-        process.exit(1)
-      }
-      await share(sdk, sessionID)
-
-      loop().catch((e) => {
-        console.error(e)
-        process.exit(1)
-      })
-
-      if (args.command) {
-        await sdk.session.command({
-          sessionID,
-          agent,
-          model: args.model,
-          command: args.command,
-          arguments: message,
-          variant: args.variant,
-        })
-      } else {
-        const model = args.model ? Provider.parseModel(args.model) : undefined
-        await sdk.session.prompt({
-          sessionID,
-          agent,
-          model,
-          variant: args.variant,
-          parts: [...files, { type: "text", text: message }],
+        loop().catch((e) => {
+          console.error(e)
+          process.exit(1)
        })
+
+        if (args.command) {
+          await sdk.session.command({
+            sessionID,
+            agent,
+            model: args.model,
+            command: args.command,
+            arguments: message,
+            variant: args.variant,
+          })
+        } else {
+          const model = args.model ? Provider.parseModel(args.model) : undefined
+          await sdk.session.prompt({
+            sessionID,
+            agent,
+            model,
+            variant: args.variant,
+            parts: [...files, { type: "text", text: message }],
+          })
+        }
      }
-    }

-    if (args.attach) {
-      const headers = (() => {
-        const password = args.password ?? process.env.OPENCODE_SERVER_PASSWORD
-        if (!password) return undefined
-        const username = process.env.OPENCODE_SERVER_USERNAME ?? "opencode"
-        const auth = `Basic ${Buffer.from(`${username}:${password}`).toString("base64")}`
-        return { Authorization: auth }
-      })()
-      const sdk = createOpencodeClient({ baseUrl: args.attach, directory, headers })
-      return await execute(sdk)
-    }
+      if (args.attach) {
+        const headers = (() => {
+          const password = args.password ?? process.env.OPENCODE_SERVER_PASSWORD
+          if (!password) return undefined
+          const username = process.env.OPENCODE_SERVER_USERNAME ?? "opencode"
+          const auth = `Basic ${Buffer.from(`${username}:${password}`).toString("base64")}`
+          return { Authorization: auth }
+        })()
+        const sdk = createOpencodeClient({ baseUrl: args.attach, directory, headers })
+        return await execute(sdk)
+      }

-    await bootstrap(process.cwd(), async () => {
      const fetchFn = (async (input: RequestInfo | URL, init?: RequestInit) => {
        const request = new Request(input, init)
        return Server.Default().app.fetch(request)
@@ -668,5 +674,5 @@ export const RunCommand = cmd({
      const sdk = createOpencodeClient({ baseUrl: "http://opencode.internal", fetch: fetchFn })
      await execute(sdk)
    })
-  },
+  }),
 })
--- a/packages/opencode/src/cli/cmd/serve.ts
+++ b/packages/opencode/src/cli/cmd/serve.ts
@@ -1,21 +1,24 @@
+import { Effect } from "effect"
 import { Server } from "../../server/server"
-import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
 import { withNetworkOptions, resolveNetworkOptions } from "../network"
 import { Flag } from "@opencode-ai/core/flag/flag"

-export const ServeCommand = cmd({
+export const ServeCommand = effectCmd({
  command: "serve",
  builder: (yargs) => withNetworkOptions(yargs),
  describe: "starts a headless opencode server",
-  handler: async (args) => {
+  // Server loads instances per-request via x-opencode-directory header — no
+  // need for an ambient project InstanceContext at startup.
+  instance: false,
+  handler: Effect.fn("Cli.serve")(function* (args) {
    if (!Flag.OPENCODE_SERVER_PASSWORD) {
      console.log("Warning: OPENCODE_SERVER_PASSWORD is not set; server is unsecured.")
    }
-    const opts = await resolveNetworkOptions(args)
-    const server = await Server.listen(opts)
+    const opts = yield* Effect.promise(() => resolveNetworkOptions(args))
+    const server = yield* Effect.promise(() => Server.listen(opts))
    console.log(`opencode server listening on http://${server.hostname}:${server.port}`)

-    await new Promise(() => {})
-    await server.stop()
-  },
+    yield* Effect.never
+  }),
 })
--- a/packages/opencode/src/cli/cmd/session.ts
+++ b/packages/opencode/src/cli/cmd/session.ts
@@ -1,8 +1,9 @@
 import type { Argv } from "yargs"
+import { Effect } from "effect"
 import { cmd } from "./cmd"
+import { effectCmd, fail } from "../effect-cmd"
 import { Session } from "@/session/session"
 import { SessionID } from "../../session/schema"
-import { bootstrap } from "../bootstrap"
 import { UI } from "../ui"
 import { Locale } from "@/util/locale"
 import { Flag } from "@opencode-ai/core/flag/flag"
@@ -11,7 +12,6 @@ import { Process } from "@/util/process"
 import { EOL } from "os"
 import path from "path"
 import { which } from "../../util/which"
-import { AppRuntime } from "@/effect/app-runtime"

 function pagerCmd(): string[] {
  const lessOptions = ["-R", "-S"]
@@ -47,36 +47,30 @@ export const SessionCommand = cmd({
  async handler() {},
 })

-export const SessionDeleteCommand = cmd({
+export const SessionDeleteCommand = effectCmd({
  command: "delete <sessionID>",
  describe: "delete a session",
-  builder: (yargs: Argv) => {
-    return yargs.positional("sessionID", {
+  builder: (yargs) =>
+    yargs.positional("sessionID", {
      describe: "session ID to delete",
      type: "string",
      demandOption: true,
-    })
-  },
-  handler: async (args) => {
-    await bootstrap(process.cwd(), async () => {
-      const sessionID = SessionID.make(args.sessionID)
-      try {
-        await AppRuntime.runPromise(Session.Service.use((svc) => svc.get(sessionID)))
-      } catch {
-        UI.error(`Session not found: ${args.sessionID}`)
-        process.exit(1)
-      }
-      await AppRuntime.runPromise(Session.Service.use((svc) => svc.remove(sessionID)))
-      UI.println(UI.Style.TEXT_SUCCESS_BOLD + `Session ${args.sessionID} deleted` + UI.Style.TEXT_NORMAL)
-    })
-  },
+    }),
+  handler: Effect.fn("Cli.session.delete")(function* (args) {
+    const svc = yield* Session.Service
+    const sessionID = SessionID.make(args.sessionID)
+    // Match legacy try/catch — Session.get surfaces NotFoundError as a defect.
+    yield* svc.get(sessionID).pipe(Effect.catchCause(() => fail(`Session not found: ${args.sessionID}`)))
+    yield* svc.remove(sessionID)
+    UI.println(UI.Style.TEXT_SUCCESS_BOLD + `Session ${args.sessionID} deleted` + UI.Style.TEXT_NORMAL)
+  }),
 })

-export const SessionListCommand = cmd({
+export const SessionListCommand = effectCmd({
  command: "list",
  describe: "list sessions",
-  builder: (yargs: Argv) => {
-    return yargs
+  builder: (yargs) =>
+    yargs
      .option("max-count", {
        alias: "n",
        describe: "limit to N most recent sessions",
@@ -87,28 +81,18 @@ export const SessionListCommand = cmd({
        type: "string",
        choices: ["table", "json"],
        default: "table",
-      })
-  },
-  handler: async (args) => {
-    await bootstrap(process.cwd(), async () => {
-      const sessions = await AppRuntime.runPromise(
-        Session.Service.use((svc) => svc.list({ roots: true, limit: args.maxCount })),
-      )
+      }),
+  handler: Effect.fn("Cli.session.list")(function* (args) {
+    const sessions = yield* Session.Service.use((svc) => svc.list({ roots: true, limit: args.maxCount }))

-      if (sessions.length === 0) {
-        return
-      }
+    if (sessions.length === 0) return

-      let output: string
-      if (args.format === "json") {
-        output = formatSessionJSON(sessions)
-      } else {
-        output = formatSessionTable(sessions)
-      }
+    const output = args.format === "json" ? formatSessionJSON(sessions) : formatSessionTable(sessions)

-      const shouldPaginate = process.stdout.isTTY && !args.maxCount && args.format === "table"
+    const shouldPaginate = process.stdout.isTTY && !args.maxCount && args.format === "table"

-      if (shouldPaginate) {
+    if (shouldPaginate) {
+      yield* Effect.promise(async () => {
        const proc = Process.spawn(pagerCmd(), {
          stdin: "pipe",
          stdout: "inherit",
@@ -123,11 +107,11 @@ export const SessionListCommand = cmd({
        proc.stdin.write(output)
        proc.stdin.end()
        await proc.exited
-      } else {
-        console.log(output)
-      }
-    })
-  },
+      })
+    } else {
+      console.log(output)
+    }
+  }),
 })

 function formatSessionTable(sessions: Session.Info[]): string {
--- a/packages/opencode/src/cli/cmd/stats.ts
+++ b/packages/opencode/src/cli/cmd/stats.ts
@@ -1,12 +1,10 @@
-import type { Argv } from "yargs"
-import { cmd } from "./cmd"
+import { Effect } from "effect"
+import { effectCmd } from "../effect-cmd"
 import { Session } from "@/session/session"
-import { bootstrap } from "../bootstrap"
 import { Database } from "@/storage/db"
 import { SessionTable } from "../../session/session.sql"
 import { Project } from "@/project/project"
-import { Instance } from "../../project/instance"
-import { AppRuntime } from "@/effect/app-runtime"
+import { InstanceRef } from "@/effect/instance-ref"

 interface SessionStats {
  totalSessions: number
@@ -47,11 +45,11 @@ interface SessionStats {
  medianTokensPerSession: number
 }

-export const StatsCommand = cmd({
+export const StatsCommand = effectCmd({
  command: "stats",
  describe: "show token usage and cost statistics",
-  builder: (yargs: Argv) => {
-    return yargs
+  builder: (yargs) =>
+    yargs
      .option("days", {
        describe: "show stats for the last N days (default: all time)",
        type: "number",
@@ -66,35 +64,32 @@ export const StatsCommand = cmd({
      .option("project", {
        describe: "filter by project (default: all projects, empty string: current project)",
        type: "string",
-      })
-  },
-  handler: async (args) => {
-    await bootstrap(process.cwd(), async () => {
-      const stats = await aggregateSessionStats(args.days, args.project)
-
-      let modelLimit: number | undefined
-      if (args.models === true) {
-        modelLimit = Infinity
-      } else if (typeof args.models === "number") {
-        modelLimit = args.models
-      }
-
-      displayStats(stats, args.tools, modelLimit)
-    })
-  },
+      }),
+  handler: Effect.fn("Cli.stats")(function* (args) {
+    const ctx = yield* InstanceRef
+    if (!ctx) return
+    const stats = yield* aggregateSessionStats(args.days, args.project, ctx.project)
+    let modelLimit: number | undefined
+    if (args.models === true) {
+      modelLimit = Infinity
+    } else if (typeof args.models === "number") {
+      modelLimit = args.models
+    }
+    displayStats(stats, args.tools, modelLimit)
+  }),
 })

-async function getCurrentProject(): Promise<Project.Info> {
-  return Instance.project
-}
+const getAllSessions = Effect.sync(() =>
+  Database.use((db) => db.select().from(SessionTable).all()).map((row) => Session.fromRow(row)),
+)

-async function getAllSessions(): Promise<Session.Info[]> {
-  const rows = Database.use((db) => db.select().from(SessionTable).all())
-  return rows.map((row) => Session.fromRow(row))
-}
-
-export async function aggregateSessionStats(days?: number, projectFilter?: string): Promise<SessionStats> {
-  const sessions = await getAllSessions()
+const aggregateSessionStats = Effect.fn("Cli.stats.aggregate")(function* (
+  days?: number,
+  projectFilter?: string,
+  currentProject?: Project.Info,
+) {
+  const svc = yield* Session.Service
+  const sessions = yield* getAllSessions
  const MS_IN_DAY = 24 * 60 * 60 * 1000

  const cutoffTime = (() => {
@@ -117,7 +112,7 @@ export async function aggregateSessionStats(days?: number, projectFilter?: strin

  if (projectFilter !== undefined) {
    if (projectFilter === "") {
-      const currentProject = await getCurrentProject()
+      if (!currentProject) throw new Error("currentProject required when projectFilter is empty string")
      filteredSessions = filteredSessions.filter((session) => session.projectID === currentProject.id)
    } else {
      filteredSessions = filteredSessions.filter((session) => session.projectID === projectFilter)
@@ -163,122 +158,111 @@ export async function aggregateSessionStats(days?: number, projectFilter?: strin

  const sessionTotalTokens: number[] = []

-  const BATCH_SIZE = 20
-  for (let i = 0; i < filteredSessions.length; i += BATCH_SIZE) {
-    const batch = filteredSessions.slice(i, i + BATCH_SIZE)
+  const results = yield* Effect.forEach(
+    filteredSessions,
+    (session) =>
+      Effect.gen(function* () {
+        const messages = yield* svc.messages({ sessionID: session.id })

-    const batchPromises = batch.map(async (session) => {
-      const messages = await AppRuntime.runPromise(
-        Session.Service.use((svc) => svc.messages({ sessionID: session.id })),
-      )
+        let sessionCost = 0
+        let sessionTokens = { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } }
+        let sessionToolUsage: Record<string, number> = {}
+        let sessionModelUsage: Record<
+          string,
+          {
+            messages: number
+            tokens: { input: number; output: number; cache: { read: number; write: number } }
+            cost: number
+          }
+        > = {}

-      let sessionCost = 0
-      let sessionTokens = { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } }
-      let sessionToolUsage: Record<string, number> = {}
-      let sessionModelUsage: Record<
-        string,
-        {
-          messages: number
-          tokens: {
-            input: number
-            output: number
-            cache: {
-              read: number
-              write: number
+        for (const message of messages) {
+          if (message.info.role === "assistant") {
+            sessionCost += message.info.cost || 0
+
+            const modelKey = `${message.info.providerID}/${message.info.modelID}`
+            if (!sessionModelUsage[modelKey]) {
+              sessionModelUsage[modelKey] = {
+                messages: 0,
+                tokens: { input: 0, output: 0, cache: { read: 0, write: 0 } },
+                cost: 0,
+              }
+            }
+            sessionModelUsage[modelKey].messages++
+            sessionModelUsage[modelKey].cost += message.info.cost || 0
+
+            if (message.info.tokens) {
+              sessionTokens.input += message.info.tokens.input || 0
+              sessionTokens.output += message.info.tokens.output || 0
+              sessionTokens.reasoning += message.info.tokens.reasoning || 0
+              sessionTokens.cache.read += message.info.tokens.cache?.read || 0
+              sessionTokens.cache.write += message.info.tokens.cache?.write || 0
+
+              sessionModelUsage[modelKey].tokens.input += message.info.tokens.input || 0
+              sessionModelUsage[modelKey].tokens.output +=
+                (message.info.tokens.output || 0) + (message.info.tokens.reasoning || 0)
+              sessionModelUsage[modelKey].tokens.cache.read += message.info.tokens.cache?.read || 0
+              sessionModelUsage[modelKey].tokens.cache.write += message.info.tokens.cache?.write || 0
            }
          }
-          cost: number
-        }
-      > = {}

-      for (const message of messages) {
-        if (message.info.role === "assistant") {
-          sessionCost += message.info.cost || 0
-
-          const modelKey = `${message.info.providerID}/${message.info.modelID}`
-          if (!sessionModelUsage[modelKey]) {
-            sessionModelUsage[modelKey] = {
-              messages: 0,
-              tokens: { input: 0, output: 0, cache: { read: 0, write: 0 } },
-              cost: 0,
+          for (const part of message.parts) {
+            if (part.type === "tool" && part.tool) {
+              sessionToolUsage[part.tool] = (sessionToolUsage[part.tool] || 0) + 1
            }
          }
-          sessionModelUsage[modelKey].messages++
-          sessionModelUsage[modelKey].cost += message.info.cost || 0
-
-          if (message.info.tokens) {
-            sessionTokens.input += message.info.tokens.input || 0
-            sessionTokens.output += message.info.tokens.output || 0
-            sessionTokens.reasoning += message.info.tokens.reasoning || 0
-            sessionTokens.cache.read += message.info.tokens.cache?.read || 0
-            sessionTokens.cache.write += message.info.tokens.cache?.write || 0
-
-            sessionModelUsage[modelKey].tokens.input += message.info.tokens.input || 0
-            sessionModelUsage[modelKey].tokens.output +=
-              (message.info.tokens.output || 0) + (message.info.tokens.reasoning || 0)
-            sessionModelUsage[modelKey].tokens.cache.read += message.info.tokens.cache?.read || 0
-            sessionModelUsage[modelKey].tokens.cache.write += message.info.tokens.cache?.write || 0
-          }
        }

-        for (const part of message.parts) {
-          if (part.type === "tool" && part.tool) {
-            sessionToolUsage[part.tool] = (sessionToolUsage[part.tool] || 0) + 1
-          }
+        return {
+          messageCount: messages.length,
+          sessionCost,
+          sessionTokens,
+          sessionTotalTokens:
+            sessionTokens.input +
+            sessionTokens.output +
+            sessionTokens.reasoning +
+            sessionTokens.cache.read +
+            sessionTokens.cache.write,
+          sessionToolUsage,
+          sessionModelUsage,
+          earliestTime: cutoffTime > 0 ? session.time.updated : session.time.created,
+          latestTime: session.time.updated,
+        }
+      }),
+    { concurrency: 20 },
+  )
+
+  for (const result of results) {
+    earliestTime = Math.min(earliestTime, result.earliestTime)
+    latestTime = Math.max(latestTime, result.latestTime)
+    sessionTotalTokens.push(result.sessionTotalTokens)
+
+    stats.totalMessages += result.messageCount
+    stats.totalCost += result.sessionCost
+    stats.totalTokens.input += result.sessionTokens.input
+    stats.totalTokens.output += result.sessionTokens.output
+    stats.totalTokens.reasoning += result.sessionTokens.reasoning
+    stats.totalTokens.cache.read += result.sessionTokens.cache.read
+    stats.totalTokens.cache.write += result.sessionTokens.cache.write
+
+    for (const [tool, count] of Object.entries(result.sessionToolUsage)) {
+      stats.toolUsage[tool] = (stats.toolUsage[tool] || 0) + count
+    }
+
+    for (const [model, usage] of Object.entries(result.sessionModelUsage)) {
+      if (!stats.modelUsage[model]) {
+        stats.modelUsage[model] = {
+          messages: 0,
+          tokens: { input: 0, output: 0, cache: { read: 0, write: 0 } },
+          cost: 0,
        }
      }
-
-      return {
-        messageCount: messages.length,
-        sessionCost,
-        sessionTokens,
-        sessionTotalTokens:
-          sessionTokens.input +
-          sessionTokens.output +
-          sessionTokens.reasoning +
-          sessionTokens.cache.read +
-          sessionTokens.cache.write,
-        sessionToolUsage,
-        sessionModelUsage,
-        earliestTime: cutoffTime > 0 ? session.time.updated : session.time.created,
-        latestTime: session.time.updated,
-      }
-    })
-
-    const batchResults = await Promise.all(batchPromises)
-
-    for (const result of batchResults) {
-      earliestTime = Math.min(earliestTime, result.earliestTime)
-      latestTime = Math.max(latestTime, result.latestTime)
-      sessionTotalTokens.push(result.sessionTotalTokens)
-
-      stats.totalMessages += result.messageCount
-      stats.totalCost += result.sessionCost
-      stats.totalTokens.input += result.sessionTokens.input
-      stats.totalTokens.output += result.sessionTokens.output
-      stats.totalTokens.reasoning += result.sessionTokens.reasoning
-      stats.totalTokens.cache.read += result.sessionTokens.cache.read
-      stats.totalTokens.cache.write += result.sessionTokens.cache.write
-
-      for (const [tool, count] of Object.entries(result.sessionToolUsage)) {
-        stats.toolUsage[tool] = (stats.toolUsage[tool] || 0) + count
-      }
-
-      for (const [model, usage] of Object.entries(result.sessionModelUsage)) {
-        if (!stats.modelUsage[model]) {
-          stats.modelUsage[model] = {
-            messages: 0,
-            tokens: { input: 0, output: 0, cache: { read: 0, write: 0 } },
-            cost: 0,
-          }
-        }
-        stats.modelUsage[model].messages += usage.messages
-        stats.modelUsage[model].tokens.input += usage.tokens.input
-        stats.modelUsage[model].tokens.output += usage.tokens.output
-        stats.modelUsage[model].tokens.cache.read += usage.tokens.cache.read
-        stats.modelUsage[model].tokens.cache.write += usage.tokens.cache.write
-        stats.modelUsage[model].cost += usage.cost
-      }
+      stats.modelUsage[model].messages += usage.messages
+      stats.modelUsage[model].tokens.input += usage.tokens.input
+      stats.modelUsage[model].tokens.output += usage.tokens.output
+      stats.modelUsage[model].tokens.cache.read += usage.tokens.cache.read
+      stats.modelUsage[model].tokens.cache.write += usage.tokens.cache.write
+      stats.modelUsage[model].cost += usage.cost
    }
  }

@@ -307,7 +291,7 @@ export async function aggregateSessionStats(days?: number, projectFilter?: strin
        : sessionTotalTokens[mid]

  return stats
-}
+})

 export function displayStats(stats: SessionStats, toolLimit?: number, modelLimit?: number) {
  const width = 56
--- a/packages/opencode/src/cli/cmd/tui/app.tsx
+++ b/packages/opencode/src/cli/cmd/tui/app.tsx
@@ -28,6 +28,7 @@ import { useEvent } from "@tui/context/event"
 import { SDKProvider, useSDK } from "@tui/context/sdk"
 import { StartupLoading } from "@tui/component/startup-loading"
 import { SyncProvider, useSync } from "@tui/context/sync"
+import { SyncProviderV2 } from "@tui/context/sync-v2"
 import { LocalProvider, useLocal } from "@tui/context/local"
 import { DialogModel } from "@tui/component/dialog-model"
 import { useConnected } from "@tui/component/use-connected"
@@ -133,6 +134,8 @@ export function tui(input: {
    }

    const renderer = await createCliRenderer(rendererConfig(input.config))
+    // Prewarm palette before ThemeProvider mounts so `system` theme avoids a first-paint fallback flash.
+    void renderer.getPalette({ size: 16 }).catch(() => undefined)
    const mode = (await renderer.waitForThemeMode(1000)) ?? "dark"

    await render(() => {
@@ -166,27 +169,29 @@ export function tui(input: {
                      >
                        <ProjectProvider>
                          <SyncProvider>
-                            <ThemeProvider mode={mode}>
-                              <LocalProvider>
-                                <KeybindProvider>
-                                  <PromptStashProvider>
-                                    <DialogProvider>
-                                      <CommandProvider>
-                                        <FrecencyProvider>
-                                          <PromptHistoryProvider>
-                                            <PromptRefProvider>
-                                              <EditorContextProvider>
-                                                <App onSnapshot={input.onSnapshot} />
-                                              </EditorContextProvider>
-                                            </PromptRefProvider>
-                                          </PromptHistoryProvider>
-                                        </FrecencyProvider>
-                                      </CommandProvider>
-                                    </DialogProvider>
-                                  </PromptStashProvider>
-                                </KeybindProvider>
-                              </LocalProvider>
-                            </ThemeProvider>
+                            <SyncProviderV2>
+                              <ThemeProvider mode={mode}>
+                                <LocalProvider>
+                                  <KeybindProvider>
+                                    <PromptStashProvider>
+                                      <DialogProvider>
+                                        <CommandProvider>
+                                          <FrecencyProvider>
+                                            <PromptHistoryProvider>
+                                              <PromptRefProvider>
+                                                <EditorContextProvider>
+                                                  <App onSnapshot={input.onSnapshot} />
+                                                </EditorContextProvider>
+                                              </PromptRefProvider>
+                                            </PromptHistoryProvider>
+                                          </FrecencyProvider>
+                                        </CommandProvider>
+                                      </DialogProvider>
+                                    </PromptStashProvider>
+                                  </KeybindProvider>
+                                </LocalProvider>
+                              </ThemeProvider>
+                            </SyncProviderV2>
                          </SyncProvider>
                        </ProjectProvider>
                      </SDKProvider>
--- a/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
+++ b/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
@@ -17,6 +17,7 @@ import { MessageID, PartID } from "@/session/schema"
 import { createStore, produce, unwrap } from "solid-js/store"
 import { useKeybind } from "@tui/context/keybind"
 import { usePromptHistory, type PromptInfo } from "./history"
+import { computePromptTraits } from "./traits"
 import { assign } from "./part"
 import { usePromptStash } from "./stash"
 import { DialogStash } from "../dialog-stash"
@@ -557,17 +558,11 @@ export function Prompt(props: PromptProps) {

  createEffect(() => {
    if (!input || input.isDestroyed) return
-    const capture =
-      store.mode === "normal"
-        ? auto()?.visible
-          ? (["escape", "navigate", "submit", "tab"] as const)
-          : (["tab"] as const)
-        : undefined
-    input.traits = {
-      capture,
-      suspend: !!props.disabled || store.mode === "shell",
-      status: store.mode === "shell" ? "SHELL" : undefined,
-    }
+    input.traits = computePromptTraits({
+      mode: store.mode,
+      disabled: !!props.disabled,
+      autocompleteVisible: !!auto()?.visible,
+    })
  })

  function restoreExtmarksFromParts(parts: PromptInfo["parts"]) {
@@ -755,9 +750,18 @@ export function Prompt(props: PromptProps) {
      return false
    }

+    const variant = local.model.variant.current()
    let sessionID = props.sessionID
    if (sessionID == null) {
-      const res = await sdk.client.session.create({ workspace: props.workspaceID })
+      const res = await sdk.client.session.create({
+        workspace: props.workspaceID,
+        agent: agent.name,
+        model: {
+          providerID: selectedModel.providerID,
+          id: selectedModel.modelID,
+          variant,
+        },
+      })

      if (res.error) {
        console.log("Creating a session failed:", res.error)
@@ -797,7 +801,6 @@ export function Prompt(props: PromptProps) {

    // Capture mode before it gets reset
    const currentMode = store.mode
-    const variant = local.model.variant.current()
    const editorSelection = editorContext()
    const currentEditorSelectionKey = editorSelectionKey(editorSelection)
    const editorParts =
--- a/packages/opencode/src/cli/cmd/tui/component/prompt/traits.ts
+++ b/packages/opencode/src/cli/cmd/tui/component/prompt/traits.ts
@@ -0,0 +1,31 @@
+import type { EditorTraits } from "@opentui/core"
+
+export type PromptMode = "normal" | "shell"
+
+export interface PromptTraitsInput {
+  mode: PromptMode
+  disabled: boolean
+  autocompleteVisible: boolean
+}
+
+/**
+ * Compute the textarea editor traits for the prompt.
+ *
+ * `traits.suspend` gates the textarea's keybinding actions (backspace,
+ * delete-word, arrow movement, undo/redo, etc.). Shell mode is an active
+ * editing mode — only `disabled` should suspend the textarea, otherwise
+ * users can type in shell mode but cannot delete or move the cursor.
+ */
+export function computePromptTraits(input: PromptTraitsInput): EditorTraits {
+  const capture =
+    input.mode === "normal"
+      ? input.autocompleteVisible
+        ? (["escape", "navigate", "submit", "tab"] as const)
+        : (["tab"] as const)
+      : undefined
+  return {
+    capture,
+    suspend: input.disabled,
+    status: input.mode === "shell" ? "SHELL" : undefined,
+  }
+}
--- a/packages/opencode/src/cli/cmd/tui/context/sync-v2.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/sync-v2.tsx
@@ -0,0 +1,298 @@
+import { useEvent } from "@tui/context/event"
+import type {
+  SessionMessage,
+  SessionMessageAssistant,
+  SessionMessageAssistantReasoning,
+  SessionMessageAssistantText,
+  SessionMessageAssistantTool,
+} from "@opencode-ai/sdk/v2"
+import { createStore, produce, reconcile } from "solid-js/store"
+import { createSimpleContext } from "./helper"
+import { useSDK } from "./sdk"
+
+function activeAssistant(messages: SessionMessage[]) {
+  const index = messages.findLastIndex((message) => message.type === "assistant" && !message.time.completed)
+  if (index < 0) return
+  const assistant = messages[index]
+  return assistant?.type === "assistant" ? assistant : undefined
+}
+
+function activeCompaction(messages: SessionMessage[]) {
+  const index = messages.findLastIndex((message) => message.type === "compaction")
+  if (index < 0) return
+  const compaction = messages[index]
+  return compaction?.type === "compaction" ? compaction : undefined
+}
+
+function activeShell(messages: SessionMessage[], callID: string) {
+  const index = messages.findLastIndex((message) => message.type === "shell" && message.callID === callID)
+  if (index < 0) return
+  const shell = messages[index]
+  return shell?.type === "shell" ? shell : undefined
+}
+
+function latestTool(assistant: SessionMessageAssistant | undefined, callID?: string) {
+  return assistant?.content.findLast(
+    (item): item is SessionMessageAssistantTool => item.type === "tool" && (callID === undefined || item.id === callID),
+  )
+}
+
+function latestText(assistant: SessionMessageAssistant | undefined) {
+  return assistant?.content.findLast((item): item is SessionMessageAssistantText => item.type === "text")
+}
+
+function latestReasoning(assistant: SessionMessageAssistant | undefined, reasoningID: string) {
+  return assistant?.content.findLast(
+    (item): item is SessionMessageAssistantReasoning => item.type === "reasoning" && item.id === reasoningID,
+  )
+}
+
+export const { use: useSyncV2, provider: SyncProviderV2 } = createSimpleContext({
+  name: "SyncV2",
+  init: () => {
+    const [store, setStore] = createStore<{
+      messages: {
+        [sessionID: string]: SessionMessage[]
+      }
+    }>({
+      messages: {},
+    })
+
+    const event = useEvent()
+    const sdk = useSDK()
+
+    function update(sessionID: string, fn: (messages: SessionMessage[]) => void) {
+      setStore(
+        "messages",
+        produce((draft) => {
+          fn((draft[sessionID] ??= []))
+        }),
+      )
+    }
+
+    event.subscribe((event) => {
+      switch (event.type) {
+        case "session.next.prompted": {
+          update(event.properties.sessionID, (draft) => {
+            draft.push({
+              id: event.id,
+              type: "user",
+              text: event.properties.prompt.text,
+              files: event.properties.prompt.files,
+              agents: event.properties.prompt.agents,
+              time: { created: event.properties.timestamp },
+            })
+          })
+          break
+        }
+        case "session.next.synthetic":
+          update(event.properties.sessionID, (draft) => {
+            draft.push({
+              id: event.id,
+              type: "synthetic",
+              sessionID: event.properties.sessionID,
+              text: event.properties.text,
+              time: { created: event.properties.timestamp },
+            })
+          })
+          break
+        case "session.next.shell.started":
+          update(event.properties.sessionID, (draft) => {
+            draft.push({
+              id: event.id,
+              type: "shell",
+              callID: event.properties.callID,
+              command: event.properties.command,
+              output: "",
+              time: { created: event.properties.timestamp },
+            })
+          })
+          break
+        case "session.next.shell.ended":
+          update(event.properties.sessionID, (draft) => {
+            const match = activeShell(draft, event.properties.callID)
+            if (!match) return
+            match.output = event.properties.output
+            match.time.completed = event.properties.timestamp
+          })
+          break
+        case "session.next.step.started":
+          update(event.properties.sessionID, (draft) => {
+            const currentAssistant = activeAssistant(draft)
+            if (currentAssistant) currentAssistant.time.completed = event.properties.timestamp
+            draft.push({
+              id: event.id,
+              type: "assistant",
+              agent: event.properties.agent,
+              model: event.properties.model,
+              content: [],
+              snapshot: event.properties.snapshot ? { start: event.properties.snapshot } : undefined,
+              time: { created: event.properties.timestamp },
+            })
+          })
+          break
+        case "session.next.step.ended":
+          update(event.properties.sessionID, (draft) => {
+            const currentAssistant = activeAssistant(draft)
+            if (!currentAssistant) return
+            currentAssistant.time.completed = event.properties.timestamp
+            currentAssistant.finish = event.properties.finish
+            currentAssistant.cost = event.properties.cost
+            currentAssistant.tokens = event.properties.tokens
+            if (event.properties.snapshot)
+              currentAssistant.snapshot = { ...currentAssistant.snapshot, end: event.properties.snapshot }
+          })
+          break
+        case "session.next.text.started":
+          update(event.properties.sessionID, (draft) => {
+            activeAssistant(draft)?.content.push({ type: "text", text: "" })
+          })
+          break
+        case "session.next.text.delta":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestText(activeAssistant(draft))
+            if (match) match.text += event.properties.delta
+          })
+          break
+        case "session.next.text.ended":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestText(activeAssistant(draft))
+            if (match) match.text = event.properties.text
+          })
+          break
+        case "session.next.tool.input.started":
+          update(event.properties.sessionID, (draft) => {
+            activeAssistant(draft)?.content.push({
+              type: "tool",
+              id: event.properties.callID,
+              name: event.properties.name,
+              time: { created: event.properties.timestamp },
+              state: { status: "pending", input: "" },
+            })
+          })
+          break
+        case "session.next.tool.input.delta":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestTool(activeAssistant(draft), event.properties.callID)
+            if (match?.state.status === "pending") match.state.input += event.properties.delta
+          })
+          break
+        case "session.next.tool.input.ended":
+          break
+        case "session.next.tool.called":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestTool(activeAssistant(draft), event.properties.callID)
+            if (!match) return
+            match.time.ran = event.properties.timestamp
+            match.provider = event.properties.provider
+            match.state = { status: "running", input: event.properties.input, structured: {}, content: [] }
+          })
+          break
+        case "session.next.tool.progress":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestTool(activeAssistant(draft), event.properties.callID)
+            if (match?.state.status !== "running") return
+            match.state.structured = event.properties.structured
+            match.state.content = [...event.properties.content]
+          })
+          break
+        case "session.next.tool.success":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestTool(activeAssistant(draft), event.properties.callID)
+            if (match?.state.status !== "running") return
+            match.state = {
+              status: "completed",
+              input: match.state.input,
+              structured: event.properties.structured,
+              content: [...event.properties.content],
+            }
+            match.provider = event.properties.provider
+            match.time.completed = event.properties.timestamp
+          })
+          break
+        case "session.next.tool.error":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestTool(activeAssistant(draft), event.properties.callID)
+            if (match?.state.status !== "running") return
+            match.state = {
+              status: "error",
+              error: event.properties.error,
+              input: match.state.input,
+              structured: match.state.structured,
+              content: match.state.content,
+            }
+            match.provider = event.properties.provider
+            match.time.completed = event.properties.timestamp
+          })
+          break
+        case "session.next.reasoning.started":
+          update(event.properties.sessionID, (draft) => {
+            activeAssistant(draft)?.content.push({
+              type: "reasoning",
+              id: event.properties.reasoningID,
+              text: "",
+            })
+          })
+          break
+        case "session.next.reasoning.delta":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestReasoning(activeAssistant(draft), event.properties.reasoningID)
+            if (match) match.text += event.properties.delta
+          })
+          break
+        case "session.next.reasoning.ended":
+          update(event.properties.sessionID, (draft) => {
+            const match = latestReasoning(activeAssistant(draft), event.properties.reasoningID)
+            if (match) match.text = event.properties.text
+          })
+          break
+        case "session.next.retried":
+          break
+        case "session.next.compaction.started":
+          update(event.properties.sessionID, (draft) => {
+            draft.push({
+              id: event.id,
+              type: "compaction",
+              reason: event.properties.reason,
+              summary: "",
+              time: { created: event.properties.timestamp },
+            })
+          })
+          break
+        case "session.next.compaction.delta":
+          update(event.properties.sessionID, (draft) => {
+            const match = activeCompaction(draft)
+            if (match) match.summary += event.properties.text
+          })
+          break
+        case "session.next.compaction.ended":
+          update(event.properties.sessionID, (draft) => {
+            const match = activeCompaction(draft)
+            if (!match) return
+            match.summary = event.properties.text
+            match.include = event.properties.include
+          })
+          break
+      }
+    })
+
+    const result = {
+      data: store,
+      session: {
+        message: {
+          async sync(sessionID: string) {
+            const response = await sdk.client.v2.session.messages({ sessionID })
+            setStore("messages", sessionID, reconcile(response.data?.items ?? []))
+          },
+          fromSession(sessionID: string) {
+            const messages = store.messages[sessionID]
+            if (!messages) return []
+            return messages
+          },
+        },
+      },
+    }
+
+    return result
+  },
+})
--- a/packages/opencode/src/cli/cmd/tui/context/theme.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/theme.tsx
@@ -416,12 +416,16 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({

    const values = createMemo(() => {
      const active = store.themes[store.active]
-      if (active) return resolveTheme(active, store.mode)
+      if (active) {
+        return resolveTheme(active, store.mode)
+      }

      const saved = kv.get("theme")
      if (typeof saved === "string") {
        const theme = store.themes[saved]
-        if (theme) return resolveTheme(theme, store.mode)
+        if (theme) {
+          return resolveTheme(theme, store.mode)
+        }
      }

      return resolveTheme(store.themes.opencode, store.mode)
--- a/packages/opencode/src/cli/cmd/tui/feature-plugins/system/session-v2.tsx
+++ b/packages/opencode/src/cli/cmd/tui/feature-plugins/system/session-v2.tsx
--- a/packages/opencode/src/cli/cmd/tui/plugin/internal.ts
+++ b/packages/opencode/src/cli/cmd/tui/plugin/internal.ts
@@ -7,7 +7,9 @@ import SidebarTodo from "../feature-plugins/sidebar/todo"
 import SidebarFiles from "../feature-plugins/sidebar/files"
 import SidebarFooter from "../feature-plugins/sidebar/footer"
 import PluginManager from "../feature-plugins/system/plugins"
+import SessionV2Debug from "../feature-plugins/system/session-v2"
 import type { TuiPlugin, TuiPluginModule } from "@opencode-ai/plugin/tui"
+import { Flag } from "@opencode-ai/core/flag/flag"

 export type InternalTuiPlugin = TuiPluginModule & {
  id: string
@@ -24,4 +26,5 @@ export const INTERNAL_TUI_PLUGINS: InternalTuiPlugin[] = [
  SidebarFiles,
  SidebarFooter,
  PluginManager,
+  ...(Flag.OPENCODE_EXPERIMENTAL_EVENT_SYSTEM ? [SessionV2Debug] : []),
 ]
--- a/packages/opencode/src/cli/cmd/tui/plugin/runtime.ts
+++ b/packages/opencode/src/cli/cmd/tui/plugin/runtime.ts
@@ -16,7 +16,7 @@ import { TuiConfig } from "@/cli/cmd/tui/config/tui"
 import * as Log from "@opencode-ai/core/util/log"
 import { errorData, errorMessage } from "@/util/error"
 import { isRecord } from "@/util/record"
-import { Instance } from "@/project/instance"
+import { WithInstance } from "@/project/with-instance"
 import {
  readPackageThemes,
  readPluginId,
@@ -790,7 +790,7 @@ async function addPluginBySpec(state: RuntimeState | undefined, raw: string) {
    state.pending.delete(spec)
    return true
  }
-  const ready = await Instance.provide({
+  const ready = await WithInstance.provide({
    directory: state.directory,
    fn: () => resolveExternalPlugins([cfg], () => TuiConfig.waitForDependencies()),
  }).catch((error) => {
@@ -986,7 +986,7 @@ async function load(input: { api: Api; config: TuiConfig.Info }) {
  }
  runtime = next
  try {
-    await Instance.provide({
+    await WithInstance.provide({
      directory: cwd,
      fn: async () => {
        const records = Flag.OPENCODE_PURE ? [] : (config.plugin_origins ?? [])
--- a/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
+++ b/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
@@ -37,7 +37,8 @@ import { Locale } from "@/util/locale"
 import type { Tool } from "@/tool/tool"
 import type { ReadTool } from "@/tool/read"
 import type { WriteTool } from "@/tool/write"
-import { BashTool } from "@/tool/bash"
+import { ShellTool } from "@/tool/shell"
+import { ShellID } from "@/tool/shell/id"
 import type { GlobTool } from "@/tool/glob"
 import { TodoWriteTool } from "@/tool/todo"
 import type { GrepTool } from "@/tool/grep"
@@ -1552,8 +1553,8 @@ function ToolPart(props: { last: boolean; part: ToolPart; message: AssistantMess
  return (
    <Show when={!shouldHide()}>
      <Switch>
-        <Match when={props.part.tool === "bash"}>
-          <Bash {...toolprops} />
+        <Match when={props.part.tool === ShellID.ToolID}>
+          <Shell {...toolprops} />
        </Match>
        <Match when={props.part.tool === "glob"}>
          <Glob {...toolprops} />
@@ -1784,7 +1785,7 @@ function BlockTool(props: {
  )
 }

-function Bash(props: ToolProps<typeof BashTool>) {
+function Shell(props: ToolProps<typeof ShellTool>) {
  const { theme } = useTheme()
  const sync = useSync()
  const isRunning = createMemo(() => props.part.state.status === "running")
--- a/packages/opencode/src/cli/cmd/tui/routes/session/permission.tsx
+++ b/packages/opencode/src/cli/cmd/tui/routes/session/permission.tsx
@@ -15,6 +15,7 @@ import { LANGUAGE_EXTENSIONS } from "@/lsp/language"
 import { Keybind } from "@/util/keybind"
 import { Locale } from "@/util/locale"
 import { Global } from "@opencode-ai/core/global"
+import { ShellID } from "@/tool/shell/id"
 import { useDialog } from "../../ui/dialog"
 import { getScrollAcceleration } from "../../util/scroll"
 import { useTuiConfig } from "../../context/tui-config"
@@ -287,7 +288,7 @@ export function PermissionPrompt(props: { request: PermissionRequest }) {
              }
            }

-            if (permission === "bash") {
+            if (permission === ShellID.ToolID) {
              const title =
                typeof data.description === "string" && data.description ? data.description : "Shell command"
              const command = typeof data.command === "string" ? data.command : ""
--- a/packages/opencode/src/cli/cmd/tui/worker.ts
+++ b/packages/opencode/src/cli/cmd/tui/worker.ts
@@ -1,8 +1,8 @@
 import { Installation } from "@/installation"
 import { Server } from "@/server/server"
 import * as Log from "@opencode-ai/core/util/log"
-import { Instance } from "@/project/instance"
-import { InstanceBootstrap } from "@/project/bootstrap"
+import { InstanceRuntime } from "@/project/instance-runtime"
+import { WithInstance } from "@/project/with-instance"
 import { Rpc } from "@/util/rpc"
 import { upgrade } from "@/cli/upgrade"
 import { Config } from "@/config/config"
@@ -12,6 +12,8 @@ import { writeHeapSnapshot } from "node:v8"
 import { Heap } from "@/cli/heap"
 import { AppRuntime } from "@/effect/app-runtime"
 import { ensureProcessMetadata } from "@opencode-ai/core/util/opencode-process"
+import { Effect } from "effect"
+import { disposeAllInstancesAndEmitGlobalDisposed } from "@/server/global-lifecycle"

 ensureProcessMetadata("worker")

@@ -75,21 +77,26 @@ export const rpc = {
    return { url: server.url.toString() }
  },
  async checkUpgrade(input: { directory: string }) {
-    await Instance.provide({
+    await WithInstance.provide({
      directory: input.directory,
-      init: () => AppRuntime.runPromise(InstanceBootstrap),
      fn: async () => {
        await upgrade().catch(() => {})
      },
    })
  },
  async reload() {
-    await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.invalidate(true)))
+    await AppRuntime.runPromise(
+      Effect.gen(function* () {
+        const cfg = yield* Config.Service
+        yield* cfg.invalidate()
+        yield* disposeAllInstancesAndEmitGlobalDisposed({ swallowErrors: true })
+      }),
+    )
  },
  async shutdown() {
    Log.Default.info("worker shutting down")

-    await Instance.disposeAll()
+    await InstanceRuntime.disposeAllInstances()
    if (server) await server.stop(true)
  },
 }
--- a/packages/opencode/src/cli/cmd/web.ts
+++ b/packages/opencode/src/cli/cmd/web.ts
@@ -1,6 +1,7 @@
+import { Effect } from "effect"
 import { Server } from "../../server/server"
 import { UI } from "../ui"
-import { cmd } from "./cmd"
+import { effectCmd } from "../effect-cmd"
 import { withNetworkOptions, resolveNetworkOptions } from "../network"
 import { Flag } from "@opencode-ai/core/flag/flag"
 import open from "open"
@@ -28,16 +29,19 @@ function getNetworkIPs() {
  return results
 }

-export const WebCommand = cmd({
+export const WebCommand = effectCmd({
  command: "web",
  builder: (yargs) => withNetworkOptions(yargs),
  describe: "start opencode server and open web interface",
-  handler: async (args) => {
+  // Server loads instances per-request via x-opencode-directory header — no
+  // ambient project InstanceContext needed at startup.
+  instance: false,
+  handler: Effect.fn("Cli.web")(function* (args) {
    if (!Flag.OPENCODE_SERVER_PASSWORD) {
      UI.println(UI.Style.TEXT_WARNING_BOLD + "!  OPENCODE_SERVER_PASSWORD is not set; server is unsecured.")
    }
-    const opts = await resolveNetworkOptions(args)
-    const server = await Server.listen(opts)
+    const opts = yield* Effect.promise(() => resolveNetworkOptions(args))
+    const server = yield* Effect.promise(() => Server.listen(opts))
    UI.empty()
    UI.println(UI.logo("  "))
    UI.empty()
@@ -75,7 +79,6 @@ export const WebCommand = cmd({
      open(displayUrl).catch(() => {})
    }

-    await new Promise(() => {})
-    await server.stop()
-  },
+    yield* Effect.never
+  }),
 })
--- a/packages/opencode/src/cli/effect-cmd.ts
+++ b/packages/opencode/src/cli/effect-cmd.ts
@@ -0,0 +1,98 @@
+import type { Argv } from "yargs"
+import { Effect, Schema } from "effect"
+import { AppRuntime, type AppServices } from "@/effect/app-runtime"
+import { InstanceStore } from "@/project/instance-store"
+import { InstanceRef } from "@/effect/instance-ref"
+import { cmd, type WithDoubleDash } from "./cmd/cmd"
+
+/**
+ * User-visible command failure. Throw via `fail("...")` from an effectCmd handler
+ * to surface a printed message + non-zero exit. Recognised by the global error
+ * formatter in `src/cli/error.ts` (FormatError), so the existing top-level
+ * catch + cleanup in `src/index.ts` runs normally.
+ */
+export class CliError extends Schema.TaggedErrorClass<CliError>()("CliError", {
+  message: Schema.String,
+  exitCode: Schema.optional(Schema.Number),
+}) {}
+
+export const fail = (message: string, exitCode = 1) => Effect.fail(new CliError({ message, exitCode }))
+
+interface EffectCmdOpts<Args, A> {
+  command: string | readonly string[]
+  aliases?: string | readonly string[]
+  describe: string | false
+  builder?: (yargs: Argv) => Argv<Args>
+  /**
+   * Whether the command needs a project InstanceContext. Defaults to true.
+   *
+   * `true` (default): wraps the handler in `InstanceStore.Service.provide({directory})`
+   * so `InstanceRef` resolves to a loaded `InstanceContext`. Auto-disposes via
+   * `Effect.ensuring(store.dispose(ctx))` on every Exit (matches the legacy
+   * `bootstrap()` finally-disposal). Runs InstanceBootstrap (config + plugin
+   * init + LSP/File/etc forks) eagerly.
+   *
+   * `false`: skip the instance entirely. Saves the InstanceBootstrap work and
+   * suppresses the `server.instance.disposed` IPC event. The handler runs
+   * directly under AppRuntime — it can yield any `AppServices` but must not
+   * yield `InstanceRef` (it'd be undefined, causing a defect).
+   *
+   * Function form: `(args) => boolean` decides per-invocation. Useful for
+   * commands like `run --attach <url>` where one flag flips between local
+   * (needs instance) and remote (doesn't).
+   *
+   * Use `false` for commands that don't read project state (e.g. `models`,
+   * `serve`, `web`, `account`, `db`, `upgrade`).
+   */
+  instance?: boolean | ((args: Args) => boolean)
+  /** Defaults to process.cwd(). Override for commands that take a directory positional. */
+  directory?: (args: Args) => string
+  handler: (args: WithDoubleDash<Args>) => Effect.Effect<A, CliError, AppServices | InstanceStore.Service>
+}
+
+/**
+ * Effect-native CLI command builder. Wraps yargs `cmd()` so the handler body is
+ * an `Effect` with `InstanceRef` provided and any `AppServices` yieldable.
+ *
+ * The handler is wrapped in `Effect.ensuring(store.dispose(ctx))` so the loaded
+ * InstanceContext is disposed (runDisposers + IPC `server.instance.disposed`)
+ * on every Exit — success, typed failure, defect, or interruption. Matches the
+ * legacy `bootstrap()` finally-disposal semantics without per-handler boilerplate.
+ *
+ * Errors propagate to the existing top-level handler in `src/index.ts`; use
+ * `fail("...")` for user-visible domain failures (clean exit, formatted message).
+ *
+ * Handlers are typically `Effect.fn("Cli.<name>")(function*(args) { ... })`,
+ * which adds a named tracing span per CLI invocation. Once all commands use
+ * `effectCmd`, swapping the underlying `cmd()` factory for effect/cli's
+ * `Command.make(...)` won't touch any handler bodies.
+ */
+export const effectCmd = <Args, A>(opts: EffectCmdOpts<Args, A>) =>
+  cmd<{}, Args>({
+    command: opts.command,
+    aliases: opts.aliases,
+    describe: opts.describe,
+    builder: opts.builder as never,
+    async handler(rawArgs) {
+      // yargs typing wraps Args in ArgumentsCamelCase<WithDoubleDash<...>>; cast at the boundary.
+      const args = rawArgs as unknown as WithDoubleDash<Args>
+      const useInstance = typeof opts.instance === "function" ? opts.instance(args) : opts.instance !== false
+      if (!useInstance) {
+        await AppRuntime.runPromise(opts.handler(args))
+        return
+      }
+      const directory = opts.directory?.(args) ?? process.cwd()
+      await AppRuntime.runPromise(
+        InstanceStore.Service.use((store) =>
+          store.provide(
+            { directory },
+            Effect.gen(function* () {
+              const ctx = yield* InstanceRef
+              const body = opts.handler(args)
+              return ctx ? yield* body.pipe(Effect.ensuring(store.dispose(ctx))) : yield* body
+            }),
+          ),
+        ),
+      )
+    },
+  })
--- a/packages/opencode/src/cli/error.ts
+++ b/packages/opencode/src/cli/error.ts
@@ -15,6 +15,13 @@ function isTaggedError(error: unknown, tag: string): boolean {
 }

 export function FormatError(input: unknown) {
+  // CliError: domain failure surfaced from an effectCmd handler via fail("...")
+  if (isTaggedError(input, "CliError")) {
+    const data = input as ErrorLike & { exitCode?: number }
+    if (data.exitCode != null) process.exitCode = data.exitCode
+    return data.message ?? ""
+  }
+
  // MCPFailed: { name: string }
  if (NamedError.hasName(input, "MCPFailed")) {
    return `MCP server "${(input as ErrorLike).data?.name}" failed. Note, opencode does not support MCP authentication yet.`
--- a/packages/opencode/src/config/config.ts
+++ b/packages/opencode/src/config/config.ts
@@ -11,11 +11,9 @@ import { Flag } from "@opencode-ai/core/flag/flag"
 import { Auth } from "../auth"
 import { Env } from "../env"
 import { applyEdits, modify } from "jsonc-parser"
-import { Instance, type InstanceContext } from "../project/instance"
+import { type InstanceContext } from "../project/instance"
 import { InstallationLocal, InstallationVersion } from "@opencode-ai/core/installation/version"
 import { existsSync } from "fs"
-import { GlobalBus } from "@/bus/global"
-import { Event } from "../server/event"
 import { Account } from "@/account/account"
 import { isRecord } from "@/util/record"
 import type { ConsoleState } from "./console-state"
@@ -23,7 +21,7 @@ import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { InstanceState } from "@/effect/instance-state"
 import { Context, Duration, Effect, Exit, Fiber, Layer, Option, Schema } from "effect"
 import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
-import { InstanceRef } from "@/effect/instance-ref"
+import { containsPath } from "../project/instance-context"
 import { zod } from "@/util/effect-zod"
 import { NonNegativeInt, PositiveInt, withStatics, type DeepMutable } from "@/util/schema"
 import { ConfigAgent } from "./agent"
@@ -194,8 +192,14 @@ export const Info = Schema.Struct({
      ]),
    ),
  ).annotate({ description: "MCP (Model Context Protocol) server configurations" }),
-  formatter: Schema.optional(ConfigFormatter.Info),
-  lsp: Schema.optional(ConfigLSP.Info),
+  formatter: Schema.optional(ConfigFormatter.Info).annotate({
+    description:
+      "Enable or configure formatters. Omit or set to false to disable, true to enable built-ins, or an object to enable built-ins with overrides.",
+  }),
+  lsp: Schema.optional(ConfigLSP.Info).annotate({
+    description:
+      "Enable or configure LSP servers. Omit or set to false to disable, true to enable built-ins, or an object to enable built-ins with overrides.",
+  }),
  instructions: Schema.optional(Schema.mutable(Schema.Array(Schema.String))).annotate({
    description: "Additional instruction files or patterns to include",
  }),
@@ -288,9 +292,9 @@ export interface Interface {
  readonly get: () => Effect.Effect<Info>
  readonly getGlobal: () => Effect.Effect<Info>
  readonly getConsoleState: () => Effect.Effect<ConsoleState>
-  readonly update: (config: Info, options?: { dispose?: boolean }) => Effect.Effect<void>
-  readonly updateGlobal: (config: Info) => Effect.Effect<Info>
-  readonly invalidate: (wait?: boolean) => Effect.Effect<void>
+  readonly update: (config: Info) => Effect.Effect<void>
+  readonly updateGlobal: (config: Info) => Effect.Effect<{ info: Info; changed: boolean }>
+  readonly invalidate: () => Effect.Effect<void>
  readonly directories: () => Effect.Effect<string[]>
  readonly waitForDependencies: () => Effect.Effect<void>
 }
@@ -459,7 +463,7 @@ export const layer = Layer.effect(
        const pluginScopeForSource = Effect.fnUntraced(function* (source: string) {
          if (source.startsWith("http://") || source.startsWith("https://")) return "global"
          if (source === "OPENCODE_CONFIG_CONTENT") return "local"
-          if (yield* InstanceRef.use((ctx) => Effect.succeed(Instance.containsPath(source, ctx)))) return "local"
+          if (containsPath(source, ctx)) return "local"
          return "global"
        })

@@ -729,31 +733,17 @@ export const layer = Layer.effect(
      )
    })

-    const update = Effect.fn("Config.update")(function* (config: Info, options?: { dispose?: boolean }) {
+    const update = Effect.fn("Config.update")(function* (config: Info) {
      const dir = yield* InstanceState.directory
      const file = path.join(dir, "config.json")
      const existing = yield* loadFile(file)
      yield* fs
        .writeFileString(file, JSON.stringify(mergeDeep(writable(existing), writable(config)), null, 2))
        .pipe(Effect.orDie)
-      if (options?.dispose !== false) yield* Effect.promise(() => Instance.dispose())
    })

-    const invalidate = Effect.fn("Config.invalidate")(function* (wait?: boolean) {
+    const invalidate = Effect.fn("Config.invalidate")(function* () {
      yield* invalidateGlobal
-      const task = Instance.disposeAll()
-        .catch(() => undefined)
-        .finally(() =>
-          GlobalBus.emit("event", {
-            directory: "global",
-            payload: {
-              type: Event.Disposed.type,
-              properties: {},
-            },
-          }),
-        )
-      if (wait) yield* Effect.promise(() => task)
-      else void task
    })

    const updateGlobal = Effect.fn("Config.updateGlobal")(function* (config: Info) {
@@ -777,9 +767,8 @@ export const layer = Layer.effect(
        if (changed) yield* fs.writeFileString(file, updated).pipe(Effect.orDie)
      }

-      // Only tear down running instances if the config actually changed.
      if (changed) yield* invalidate()
-      return next
+      return { info: next, changed }
    })

    return Service.of({
--- a/packages/opencode/src/control-plane/workspace.ts
+++ b/packages/opencode/src/control-plane/workspace.ts
@@ -25,6 +25,7 @@ import { SessionID } from "@/session/schema"
 import { errorData } from "@/util/error"
 import { waitEvent } from "./util"
 import { WorkspaceContext } from "./workspace-context"
+import { EffectBridge } from "@/effect/bridge"
 import { NonNegativeInt, withStatics } from "@/util/schema"
 import { zod as effectZod, zodObject } from "@/util/effect-zod"

@@ -336,7 +337,7 @@ export const layer = Layer.effect(

    const syncWorkspaceLoop = Effect.fn("Workspace.syncWorkspaceLoop")(function* (space: Info) {
      const adapter = getAdapter(space.projectID, space.type)
-      const target = yield* Effect.promise(() => Promise.resolve(adapter.target(space)))
+      const target = yield* EffectBridge.fromPromise(() => adapter.target(space))

      if (target.type === "local") return

@@ -420,7 +421,7 @@ export const layer = Layer.effect(
      if (!Flag.OPENCODE_EXPERIMENTAL_WORKSPACES) return

      const adapter = getAdapter(space.projectID, space.type)
-      const target = yield* Effect.promise(() => Promise.resolve(adapter.target(space)))
+      const target = yield* EffectBridge.fromPromise(() => adapter.target(space))

      if (target.type === "local") {
        setStatus(space.id, (yield* Effect.promise(() => Filesystem.exists(target.directory))) ? "connected" : "error")
@@ -459,8 +460,8 @@ export const layer = Layer.effect(
    const create = Effect.fn("Workspace.create")(function* (input: CreateInput) {
      const id = WorkspaceID.ascending(input.id)
      const adapter = getAdapter(input.projectID, input.type)
-      const config = yield* Effect.promise(() =>
-        Promise.resolve(adapter.configure({ ...input, id, name: Slug.create(), directory: null })),
+      const config = yield* EffectBridge.fromPromise(() =>
+        adapter.configure({ ...input, id, name: Slug.create(), directory: null }),
      )

      const info: Info = {
@@ -496,7 +497,7 @@ export const layer = Layer.effect(
        OTEL_RESOURCE_ATTRIBUTES: process.env.OTEL_RESOURCE_ATTRIBUTES,
      }

-      yield* Effect.promise(() => adapter.create(config, env))
+      yield* EffectBridge.fromPromise(() => adapter.create(config, env))
      yield* Effect.all(
        [
          waitEvent({
@@ -532,7 +533,7 @@ export const layer = Layer.effect(
          })

        const adapter = getAdapter(space.projectID, space.type)
-        const target = yield* Effect.promise(() => Promise.resolve(adapter.target(space)))
+        const target = yield* EffectBridge.fromPromise(() => adapter.target(space))

        yield* sync.run(Session.Event.Updated, {
          sessionID: input.sessionID,
@@ -724,10 +725,10 @@ export const layer = Layer.effect(
      yield* stopSync(id)

      const info = fromRow(row)
-      yield* Effect.catch(
+      yield* Effect.catchCause(
        Effect.gen(function* () {
          const adapter = getAdapter(info.projectID, row.type)
-          yield* Effect.tryPromise(() => Promise.resolve(adapter.remove(info)))
+          yield* EffectBridge.fromPromise(() => adapter.remove(info))
        }),
        () =>
          Effect.sync(() => {
--- a/packages/opencode/src/effect/app-runtime.ts
+++ b/packages/opencode/src/effect/app-runtime.ts
@@ -14,6 +14,7 @@ import { FileWatcher } from "@/file/watcher"
 import { Storage } from "@/storage/storage"
 import { Snapshot } from "@/snapshot"
 import { Plugin } from "@/plugin"
+import { ModelsDev } from "@/provider/models"
 import { Provider } from "@/provider/provider"
 import { ProviderAuth } from "@/provider/auth"
 import { Agent } from "@/agent/agent"
@@ -39,6 +40,7 @@ import { Command } from "@/command"
 import { Truncate } from "@/tool/truncate"
 import { ToolRegistry } from "@/tool/registry"
 import { Format } from "@/format"
+import { InstanceLayer } from "@/project/instance-layer"
 import { Project } from "@/project/project"
 import { Vcs } from "@/project/vcs"
 import { Workspace } from "@/control-plane/workspace"
@@ -65,6 +67,7 @@ export const AppLayer = Layer.mergeAll(
  Storage.defaultLayer,
  Snapshot.defaultLayer,
  Plugin.defaultLayer,
+  ModelsDev.defaultLayer,
  Provider.defaultLayer,
  ProviderAuth.defaultLayer,
  Agent.defaultLayer,
@@ -93,16 +96,19 @@ export const AppLayer = Layer.mergeAll(
  Project.defaultLayer,
  Vcs.defaultLayer,
  Workspace.defaultLayer,
-  Worktree.defaultLayer,
+  Worktree.appLayer,
  Pty.defaultLayer,
  Installation.defaultLayer,
  ShareNext.defaultLayer,
  SessionShare.defaultLayer,
  SyncEvent.defaultLayer,
-).pipe(Layer.provideMerge(Observability.layer))
+).pipe(Layer.provideMerge(InstanceLayer.layer), Layer.provideMerge(Observability.layer))

 const rt = ManagedRuntime.make(AppLayer, { memoMap })
 type Runtime = Pick<typeof rt, "runSync" | "runPromise" | "runPromiseExit" | "runFork" | "runCallback" | "dispose">
+
+/** Services provided by AppRuntime — i.e. what an Effect run via AppRuntime.runPromise can yield. */
+export type AppServices = ManagedRuntime.ManagedRuntime.Services<typeof rt>
 const wrap = (effect: Parameters<typeof rt.runSync>[0]) => attach(effect as never) as never

 export const AppRuntime: Runtime = {
--- a/packages/opencode/src/effect/bridge.ts
+++ b/packages/opencode/src/effect/bridge.ts
@@ -21,6 +21,25 @@ function restore<R>(instance: InstanceContext | undefined, workspace: WorkspaceI
  return fn()
 }

+/**
+ * Bridge from Effect into a Promise-returning JS callback while installing
+ * legacy `Instance.context` and `WorkspaceContext` AsyncLocalStorage for
+ * the duration of the callback. Effect's `InstanceRef`/`WorkspaceRef` do
+ * not propagate across async/await boundaries inside `Effect.promise(() =>
+ * async fn)` callbacks that re-enter Effect via `AppRuntime.runPromise`,
+ * but Node's AsyncLocalStorage does. Use this whenever an Effect crosses
+ * into JS that may itself spawn new Effect runtimes (workspace adapters,
+ * legacy plugins, etc.).
+ *
+ * Mirrors `Effect.promise` but restores legacy ALS first.
+ */
+export const fromPromise = <T>(fn: () => Promise<T> | T): Effect.Effect<T> =>
+  Effect.gen(function* () {
+    const instance = yield* InstanceRef
+    const workspace = yield* WorkspaceRef
+    return yield* Effect.promise(() => Promise.resolve(restore(instance, workspace, () => fn())))
+  })
+
 export function make(): Effect.Effect<Shape> {
  return Effect.gen(function* () {
    const ctx = yield* Effect.context()
--- a/packages/opencode/src/effect/run-service.ts
+++ b/packages/opencode/src/effect/run-service.ts
@@ -1,4 +1,4 @@
-import { Effect, Layer, ManagedRuntime } from "effect"
+import { Effect, Fiber, Layer, ManagedRuntime } from "effect"
 import * as Context from "effect/Context"
 import { Instance } from "@/project/instance"
 import { LocalContext } from "@/util/local-context"
@@ -24,15 +24,20 @@ export function attachWith<A, E, R>(effect: Effect.Effect<A, E, R>, refs: Refs):
 }

 export function attach<A, E, R>(effect: Effect.Effect<A, E, R>): Effect.Effect<A, E, R> {
-  try {
-    return attachWith(effect, {
-      instance: Instance.current,
-      workspace: WorkspaceContext.workspaceID,
-    })
-  } catch (err) {
-    if (!(err instanceof LocalContext.NotFound)) throw err
-  }
-  return effect
+  const workspace = WorkspaceContext.workspaceID
+  const instance = (() => {
+    try {
+      return Instance.current
+    } catch (err) {
+      if (!(err instanceof LocalContext.NotFound)) throw err
+    }
+  })()
+  if (instance && workspace !== undefined) return attachWith(effect, { instance, workspace })
+  const fiber = Fiber.getCurrent()
+  return attachWith(effect, {
+    instance: instance ?? (fiber ? Context.getReferenceUnsafe(fiber.context, InstanceRef) : undefined),
+    workspace: workspace ?? (fiber ? Context.getReferenceUnsafe(fiber.context, WorkspaceRef) : undefined),
+  })
 }

 export function makeRuntime<I, S, E>(service: Context.Service<I, S>, layer: Layer.Layer<I, E>) {
--- a/packages/opencode/src/file/index.ts
+++ b/packages/opencode/src/file/index.ts
@@ -10,7 +10,7 @@ import fuzzysort from "fuzzysort"
 import ignore from "ignore"
 import path from "path"
 import { Global } from "@opencode-ai/core/global"
-import { Instance } from "../project/instance"
+import { containsPath } from "../project/instance-context"
 import * as Log from "@opencode-ai/core/util/log"
 import { Protected } from "./protected"
 import { Ripgrep } from "./ripgrep"
@@ -507,7 +507,7 @@ export const layer = Layer.effect(
      const ctx = yield* InstanceState.context
      const full = path.join(ctx.directory, file)

-      if (!Instance.containsPath(full, ctx)) {
+      if (!containsPath(full, ctx)) {
        throw new Error("Access denied: path escapes project directory")
      }

@@ -587,7 +587,7 @@ export const layer = Layer.effect(
      }

      const resolved = dir ? path.join(ctx.directory, dir) : ctx.directory
-      if (!Instance.containsPath(resolved, ctx)) {
+      if (!containsPath(resolved, ctx)) {
        throw new Error("Access denied: path escapes project directory")
      }

--- a/packages/opencode/src/file/watcher.ts
+++ b/packages/opencode/src/file/watcher.ts
@@ -123,7 +123,9 @@ export const layer = Layer.effect(
          const cfgIgnores = cfg.watcher?.ignore ?? []

          if (yield* Flag.OPENCODE_EXPERIMENTAL_FILEWATCHER) {
-            yield* subscribe(ctx.directory, [...FileIgnore.PATTERNS, ...cfgIgnores, ...protecteds(ctx.directory)])
+            yield* Effect.forkScoped(
+              subscribe(ctx.directory, [...FileIgnore.PATTERNS, ...cfgIgnores, ...protecteds(ctx.directory)]),
+            )
          }

          if (ctx.project.vcs === "git") {
@@ -135,7 +137,7 @@ export const layer = Layer.effect(
              const ignore = (yield* Effect.promise(() => readdir(vcsDir).catch(() => []))).filter(
                (entry) => entry !== "HEAD",
              )
-              yield* subscribe(vcsDir, ignore)
+              yield* Effect.forkScoped(subscribe(vcsDir, ignore))
            }
          }
        },
--- a/packages/opencode/src/lsp/lsp.ts
+++ b/packages/opencode/src/lsp/lsp.ts
@@ -12,7 +12,7 @@ import { Process } from "@/util/process"
 import { spawn as lspspawn } from "./launch"
 import { Effect, Layer, Context, Schema } from "effect"
 import { InstanceState } from "@/effect/instance-state"
-import { AppFileSystem } from "@opencode-ai/core/filesystem"
+import { containsPath } from "@/project/instance-context"
 import { NonNegativeInt, withStatics } from "@/util/schema"
 import { zod, ZodOverride } from "@/util/effect-zod"

@@ -221,12 +221,7 @@ export const layer = Layer.effect(

    const getClients = Effect.fnUntraced(function* (file: string) {
      const ctx = yield* InstanceState.context
-      if (
-        !AppFileSystem.contains(ctx.directory, file) &&
-        (ctx.worktree === "/" || !AppFileSystem.contains(ctx.worktree, file))
-      ) {
-        return [] as LSPClient.Info[]
-      }
+      if (!containsPath(file, ctx)) return [] as LSPClient.Info[]
      const s = yield* InstanceState.get(state)
      return yield* Effect.promise(async () => {
        const extension = path.parse(file).ext || file
--- a/packages/opencode/src/permission/index.ts
+++ b/packages/opencode/src/permission/index.ts
@@ -144,7 +144,6 @@ interface State {
 }

 export function evaluate(permission: string, pattern: string, ...rulesets: Ruleset[]): Rule {
-  log.info("evaluate", { permission, pattern, ruleset: rulesets.flat() })
  return evalRule(permission, pattern, ...rulesets)
 }

--- a/packages/opencode/src/project/bootstrap-service.ts
+++ b/packages/opencode/src/project/bootstrap-service.ts
@@ -0,0 +1,9 @@
+import { Context, Effect } from "effect"
+
+export interface Interface {
+  readonly run: Effect.Effect<void>
+}
+
+export class Service extends Context.Service<Service, Interface>()("@opencode/InstanceBootstrap") {}
+
+export * as InstanceBootstrap from "./bootstrap-service"
--- a/packages/opencode/src/project/bootstrap.ts
+++ b/packages/opencode/src/project/bootstrap.ts
@@ -6,39 +6,67 @@ import { Snapshot } from "../snapshot"
 import * as Project from "./project"
 import * as Vcs from "./vcs"
 import { Bus } from "../bus"
-import { Command } from "../command"
 import { InstanceState } from "@/effect/instance-state"
-import * as Log from "@opencode-ai/core/util/log"
 import { FileWatcher } from "@/file/watcher"
 import { ShareNext } from "@/share/share-next"
-import * as Effect from "effect/Effect"
+import { Effect, Layer } from "effect"
 import { Config } from "@/config/config"
+import { Service } from "./bootstrap-service"

-export const InstanceBootstrap = Effect.gen(function* () {
-  const ctx = yield* InstanceState.context
-  Log.Default.info("bootstrapping", { directory: ctx.directory })
-  // everything depends on config so eager load it for nice traces
-  yield* Config.Service.use((svc) => svc.get())
-  // Plugin can mutate config so it has to be initialized before anything else.
-  yield* Plugin.Service.use((svc) => svc.init())
-  yield* Effect.all(
-    [
-      LSP.Service,
-      ShareNext.Service,
-      Format.Service,
-      File.Service,
-      FileWatcher.Service,
-      Vcs.Service,
-      Snapshot.Service,
-    ].map((s) => Effect.forkDetach(s.use((i) => i.init()))),
-  ).pipe(Effect.withSpan("InstanceBootstrap.init"))
+export { Service } from "./bootstrap-service"
+export type { Interface } from "./bootstrap-service"

-  const projectID = ctx.project.id
-  yield* Bus.Service.use((svc) =>
-    svc.subscribeCallback(Command.Event.Executed, async (payload) => {
-      if (payload.properties.name === Command.Default.INIT) {
-        Project.setInitialized(projectID)
-      }
-    }),
-  )
-}).pipe(Effect.withSpan("InstanceBootstrap"))
+export const layer = Layer.effect(
+  Service,
+  Effect.gen(function* () {
+    // Yield each bootstrap dep at layer init so `run` itself has R = never.
+    // InstanceStore imports only the lightweight tag from bootstrap-service.ts,
+    // so it can depend on bootstrap without importing this implementation graph.
+    const config = yield* Config.Service
+    const file = yield* File.Service
+    const fileWatcher = yield* FileWatcher.Service
+    const format = yield* Format.Service
+    const lsp = yield* LSP.Service
+    const plugin = yield* Plugin.Service
+    const project = yield* Project.Service
+    const shareNext = yield* ShareNext.Service
+    const snapshot = yield* Snapshot.Service
+    const vcs = yield* Vcs.Service
+
+    const run = Effect.gen(function* () {
+      const ctx = yield* InstanceState.context
+      yield* Effect.logInfo("bootstrapping", { directory: ctx.directory })
+      // everything depends on config so eager load it for nice traces
+      yield* config.get()
+      // Plugin can mutate config so it has to be initialized before anything else.
+      yield* plugin.init()
+      // Each service self-manages its own slow work via Effect.forkScoped against
+      // its per-instance state scope. We just await materialization here.
+      yield* Effect.forEach(
+        [lsp, shareNext, format, file, fileWatcher, vcs, snapshot, project],
+        (s) => s.init().pipe(Effect.catchCause((cause) => Effect.logWarning("init failed", { cause }))),
+        { concurrency: "unbounded", discard: true },
+      ).pipe(Effect.withSpan("InstanceBootstrap.init"))
+    }).pipe(Effect.withSpan("InstanceBootstrap"))
+
+    return Service.of({ run })
+  }),
+)
+
+export const defaultLayer: Layer.Layer<Service> = layer.pipe(
+  Layer.provide([
+    Bus.layer,
+    Config.defaultLayer,
+    File.defaultLayer,
+    FileWatcher.defaultLayer,
+    Format.defaultLayer,
+    LSP.defaultLayer,
+    Plugin.defaultLayer,
+    Project.defaultLayer,
+    ShareNext.defaultLayer,
+    Snapshot.defaultLayer,
+    Vcs.defaultLayer,
+  ]),
+)
+
+export * as InstanceBootstrap from "./bootstrap"
--- a/packages/opencode/src/project/instance-context.ts
+++ b/packages/opencode/src/project/instance-context.ts
@@ -1,4 +1,5 @@
 import { LocalContext } from "@/util/local-context"
+import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import type * as Project from "./project"

 export interface InstanceContext {
@@ -8,3 +9,16 @@ export interface InstanceContext {
 }

 export const context = LocalContext.create<InstanceContext>("instance")
+
+/**
+ * Check if a path is within the project boundary.
+ * Returns true if path is inside ctx.directory OR ctx.worktree.
+ * Paths within the worktree but outside the working directory should not trigger external_directory permission.
+ */
+export function containsPath(filepath: string, ctx: InstanceContext): boolean {
+  if (AppFileSystem.contains(ctx.directory, filepath)) return true
+  // Non-git projects set worktree to "/" which would match ANY absolute path.
+  // Skip worktree check in this case to preserve external_directory permissions.
+  if (ctx.worktree === "/") return false
+  return AppFileSystem.contains(ctx.worktree, filepath)
+}
--- a/packages/opencode/src/project/instance-layer.ts
+++ b/packages/opencode/src/project/instance-layer.ts
@@ -0,0 +1,11 @@
+import { Effect, Layer } from "effect"
+import { InstanceStore } from "./instance-store"
+
+export const layer = Layer.unwrap(
+  Effect.promise(async () => {
+    const { InstanceBootstrap } = await import("./bootstrap")
+    return InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))
+  }),
+)
+
+export * as InstanceLayer from "./instance-layer"
--- a/packages/opencode/src/project/instance-runtime.ts
+++ b/packages/opencode/src/project/instance-runtime.ts
@@ -0,0 +1,16 @@
+import { AppRuntime } from "@/effect/app-runtime"
+import { type InstanceContext } from "./instance-context"
+import { InstanceStore, type LoadInput } from "./instance-store"
+
+// Bridge for Promise/ALS callers that cannot yet yield InstanceStore.Service.
+// Delete this module once those callers are migrated to Effect boundaries that
+// provide InstanceStore directly.
+
+export const load = (input: LoadInput) => AppRuntime.runPromise(InstanceStore.Service.use((store) => store.load(input)))
+export const disposeInstance = (ctx: InstanceContext) =>
+  AppRuntime.runPromise(InstanceStore.Service.use((store) => store.dispose(ctx)))
+export const disposeAllInstances = () => AppRuntime.runPromise(InstanceStore.Service.use((store) => store.disposeAll()))
+export const reloadInstance = (input: LoadInput) =>
+  AppRuntime.runPromise(InstanceStore.Service.use((store) => store.reload(input)))
+
+export * as InstanceRuntime from "./instance-runtime"
--- a/packages/opencode/src/project/instance-store.ts
+++ b/packages/opencode/src/project/instance-store.ts
@@ -1,15 +1,15 @@
 import { GlobalBus } from "@/bus/global"
 import { WorkspaceContext } from "@/control-plane/workspace-context"
-import { disposeInstance } from "@/effect/instance-registry"
-import { makeRuntime } from "@/effect/run-service"
+import { InstanceRef } from "@/effect/instance-ref"
+import { disposeInstance as runDisposers } from "@/effect/instance-registry"
 import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { Context, Deferred, Duration, Effect, Exit, Layer, Scope } from "effect"
-import { context, type InstanceContext } from "./instance-context"
+import { type InstanceContext } from "./instance-context"
+import { InstanceBootstrap } from "./bootstrap-service"
 import * as Project from "./project"

 export interface LoadInput {
  directory: string
-  init?: () => Promise<unknown>
  worktree?: string
  project?: Project.Info
 }
@@ -19,6 +19,7 @@ export interface Interface {
  readonly reload: (input: LoadInput) => Effect.Effect<InstanceContext>
  readonly dispose: (ctx: InstanceContext) => Effect.Effect<void>
  readonly disposeAll: () => Effect.Effect<void>
+  readonly provide: <A, E, R>(input: LoadInput, effect: Effect.Effect<A, E, R>) => Effect.Effect<A, E, R>
 }

 export class Service extends Context.Service<Service, Interface>()("@opencode/InstanceStore") {}
@@ -27,32 +28,33 @@ interface Entry {
  readonly deferred: Deferred.Deferred<InstanceContext>
 }

-export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
+export const layer: Layer.Layer<Service, never, Project.Service | InstanceBootstrap.Service> = Layer.effect(
  Service,
  Effect.gen(function* () {
    const project = yield* Project.Service
+    const bootstrap = yield* InstanceBootstrap.Service
    const scope = yield* Scope.Scope
    const cache = new Map<string, Entry>()

-    const boot = Effect.fn("InstanceStore.boot")(function* (input: LoadInput & { directory: string }) {
-      const ctx =
-        input.project && input.worktree
-          ? {
-              directory: input.directory,
-              worktree: input.worktree,
-              project: input.project,
-            }
-          : yield* project.fromDirectory(input.directory).pipe(
-              Effect.map((result) => ({
+    const boot = (input: LoadInput & { directory: string }) =>
+      Effect.gen(function* () {
+        const ctx: InstanceContext =
+          input.project && input.worktree
+            ? {
                directory: input.directory,
-                worktree: result.sandbox,
-                project: result.project,
-              })),
-            )
-      const init = input.init
-      if (init) yield* Effect.promise(() => context.provide(ctx, init))
-      return ctx
-    })
+                worktree: input.worktree,
+                project: input.project,
+              }
+            : yield* project.fromDirectory(input.directory).pipe(
+                Effect.map((result) => ({
+                  directory: input.directory,
+                  worktree: result.sandbox,
+                  project: result.project,
+                })),
+              )
+        yield* bootstrap.run.pipe(Effect.provideService(InstanceRef, ctx))
+        return ctx
+      }).pipe(Effect.withSpan("InstanceStore.boot"))

    const removeEntry = (directory: string, entry: Entry) =>
      Effect.sync(() => {
@@ -61,11 +63,12 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
        return true
      })

-    const completeLoad = Effect.fnUntraced(function* (directory: string, input: LoadInput, entry: Entry) {
-      const exit = yield* Effect.exit(boot({ ...input, directory }))
-      if (Exit.isFailure(exit)) yield* removeEntry(directory, entry)
-      yield* Deferred.done(entry.deferred, exit).pipe(Effect.asVoid)
-    })
+    const completeLoad = (directory: string, input: LoadInput, entry: Entry) =>
+      Effect.gen(function* () {
+        const exit = yield* Effect.exit(boot({ ...input, directory }))
+        if (Exit.isFailure(exit)) yield* removeEntry(directory, entry)
+        yield* Deferred.done(entry.deferred, exit).pipe(Effect.asVoid)
+      })

    const emitDisposed = (input: { directory: string; project?: string }) =>
      Effect.sync(() =>
@@ -84,7 +87,7 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(

    const disposeContext = Effect.fn("InstanceStore.disposeContext")(function* (ctx: InstanceContext) {
      yield* Effect.logInfo("disposing instance", { directory: ctx.directory })
-      yield* Effect.promise(() => disposeInstance(ctx.directory))
+      yield* Effect.promise(() => runDisposers(ctx.directory))
      yield* emitDisposed({ directory: ctx.directory, project: ctx.project.id })
    })

@@ -96,9 +99,9 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
      return true
    })

-    const load = Effect.fn("InstanceStore.load")(function* (input: LoadInput) {
+    const load = (input: LoadInput): Effect.Effect<InstanceContext> => {
      const directory = AppFileSystem.resolve(input.directory)
-      return yield* Effect.uninterruptibleMask((restore) =>
+      return Effect.uninterruptibleMask((restore) =>
        Effect.gen(function* () {
          const existing = cache.get(directory)
          if (existing) return yield* restore(Deferred.await(existing.deferred))
@@ -111,12 +114,12 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
          }).pipe(Effect.forkIn(scope, { startImmediately: true }))
          return yield* restore(Deferred.await(entry.deferred))
        }),
-      )
-    })
+      ).pipe(Effect.withSpan("InstanceStore.load"))
+    }

-    const reload = Effect.fn("InstanceStore.reload")(function* (input: LoadInput) {
+    const reload = (input: LoadInput): Effect.Effect<InstanceContext> => {
      const directory = AppFileSystem.resolve(input.directory)
-      return yield* Effect.uninterruptibleMask((restore) =>
+      return Effect.uninterruptibleMask((restore) =>
        Effect.gen(function* () {
          const previous = cache.get(directory)
          const entry: Entry = { deferred: Deferred.makeUnsafe<InstanceContext>() }
@@ -125,15 +128,15 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
            yield* Effect.logInfo("reloading instance", { directory })
            if (previous) {
              yield* Deferred.await(previous.deferred).pipe(Effect.ignore)
-              yield* Effect.promise(() => disposeInstance(directory))
+              yield* Effect.promise(() => runDisposers(directory))
              yield* emitDisposed({ directory, project: input.project?.id })
            }
            yield* completeLoad(directory, input, entry)
          }).pipe(Effect.forkIn(scope, { startImmediately: true }))
          return yield* restore(Deferred.await(entry.deferred))
        }),
-      )
-    })
+      ).pipe(Effect.withSpan("InstanceStore.reload"))
+    }

    const dispose = Effect.fn("InstanceStore.dispose")(function* (ctx: InstanceContext) {
      const entry = cache.get(ctx.directory)
@@ -168,6 +171,9 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
      return yield* cachedDisposeAll
    })

+    const provide = <A, E, R>(input: LoadInput, effect: Effect.Effect<A, E, R>): Effect.Effect<A, E, R> =>
+      load(input).pipe(Effect.flatMap((ctx) => effect.pipe(Effect.provideService(InstanceRef, ctx))))
+
    yield* Effect.addFinalizer(() => disposeAll().pipe(Effect.ignore))

    return Service.of({
@@ -175,12 +181,11 @@ export const layer: Layer.Layer<Service, never, Project.Service> = Layer.effect(
      reload,
      dispose,
      disposeAll,
+      provide,
    })
  }),
 )

 export const defaultLayer = layer.pipe(Layer.provide(Project.defaultLayer))

-export const runtime = makeRuntime(Service, defaultLayer)
-
 export * as InstanceStore from "./instance-store"
--- a/packages/opencode/src/project/instance.ts
+++ b/packages/opencode/src/project/instance.ts
@@ -1,21 +1,8 @@
-import { AppFileSystem } from "@opencode-ai/core/filesystem"
-import * as Project from "./project"
 import { context, type InstanceContext } from "./instance-context"
-import { InstanceStore } from "./instance-store"

 export type { InstanceContext } from "./instance-context"
-export type { LoadInput } from "./instance-store"

 export const Instance = {
-  load(input: InstanceStore.LoadInput): Promise<InstanceContext> {
-    return InstanceStore.runtime.runPromise((store) => store.load(input))
-  },
-  async provide<R>(input: { directory: string; init?: () => Promise<any>; fn: () => R }): Promise<R> {
-    return context.provide(
-      await Instance.load({ directory: input.directory, init: input.init }),
-      async () => input.fn(),
-    )
-  },
  get current() {
    return context.use()
  },
@@ -29,19 +16,6 @@ export const Instance = {
    return context.use().project
  },

-  /**
-   * Check if a path is within the project boundary.
-   * Returns true if path is inside Instance.directory OR Instance.worktree.
-   * Paths within the worktree but outside the working directory should not trigger external_directory permission.
-   */
-  containsPath(filepath: string, ctx?: InstanceContext) {
-    const instance = ctx ?? Instance
-    if (AppFileSystem.contains(instance.directory, filepath)) return true
-    // Non-git projects set worktree to "/" which would match ANY absolute path.
-    // Skip worktree check in this case to preserve external_directory permissions.
-    if (instance.worktree === "/") return false
-    return AppFileSystem.contains(instance.worktree, filepath)
-  },
  /**
   * Captures the current instance ALS context and returns a wrapper that
   * restores it when called. Use this for callbacks that fire outside the
@@ -59,13 +33,4 @@ export const Instance = {
  restore<R>(ctx: InstanceContext, fn: () => R): R {
    return context.provide(ctx, fn)
  },
-  async reload(input: { directory: string; init?: () => Promise<any>; project?: Project.Info; worktree?: string }) {
-    return InstanceStore.runtime.runPromise((store) => store.reload(input))
-  },
-  async dispose() {
-    return InstanceStore.runtime.runPromise((store) => store.dispose(Instance.current))
-  },
-  async disposeAll() {
-    return InstanceStore.runtime.runPromise((store) => store.disposeAll())
-  },
 }
--- a/packages/opencode/src/project/project.ts
+++ b/packages/opencode/src/project/project.ts
@@ -10,6 +10,9 @@ import { BusEvent } from "@/bus/bus-event"
 import { GlobalBus } from "@/bus/global"
 import { which } from "../util/which"
 import { ProjectID } from "./schema"
+import { Bus } from "@/bus"
+import { Command } from "@/command"
+import { InstanceState } from "@/effect/instance-state"
 import { Effect, Layer, Path, Scope, Context, Stream, Types, Schema } from "effect"
 import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
 import { NodePath } from "@effect/platform-node"
@@ -108,6 +111,12 @@ export type UpdatePayload = Types.DeepMutable<Schema.Schema.Type<typeof UpdatePa
 // ---------------------------------------------------------------------------

 export interface Interface {
+  /**
+   * Per-instance setup. Subscribes to the `/init` slash command for the
+   * current instance and stamps the project's initialized timestamp when it
+   * fires. Subscription lifetime is tied to the per-instance state scope.
+   */
+  readonly init: () => Effect.Effect<void>
  readonly fromDirectory: (directory: string) => Effect.Effect<{ project: Info; sandbox: string }>
  readonly discover: (input: Info) => Effect.Effect<void>
  readonly list: () => Effect.Effect<Info[]>
@@ -127,13 +136,14 @@ type GitResult = { code: number; text: string; stderr: string }
 export const layer: Layer.Layer<
  Service,
  never,
-  AppFileSystem.Service | Path.Path | ChildProcessSpawner.ChildProcessSpawner
+  AppFileSystem.Service | Path.Path | ChildProcessSpawner.ChildProcessSpawner | Bus.Service
 > = Layer.effect(
  Service,
  Effect.gen(function* () {
    const fs = yield* AppFileSystem.Service
    const pathSvc = yield* Path.Path
    const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
+    const bus = yield* Bus.Service

    const git = Effect.fnUntraced(
      function* (args: string[], opts?: { cwd?: string }) {
@@ -417,6 +427,21 @@ export const layer: Layer.Layer<
      )
    })

+    const initState = yield* InstanceState.make(
+      Effect.fn("Project.initState")(function* (ctx) {
+        yield* bus.subscribe(Command.Event.Executed).pipe(
+          Stream.runForEach((payload) =>
+            payload.properties.name === Command.Default.INIT ? setInitialized(ctx.project.id) : Effect.void,
+          ),
+          Effect.forkScoped,
+        )
+      }),
+    )
+
+    const init = Effect.fn("Project.init")(function* () {
+      yield* InstanceState.get(initState)
+    })
+
    const sandboxes = Effect.fn("Project.sandboxes")(function* (id: ProjectID) {
      const row = yield* db((d) => d.select().from(ProjectTable).where(eq(ProjectTable.id, id)).get())
      if (!row) return []
@@ -466,6 +491,7 @@ export const layer: Layer.Layer<
    })

    return Service.of({
+      init,
      fromDirectory,
      discover,
      list,
@@ -481,6 +507,7 @@ export const layer: Layer.Layer<
 )

 export const defaultLayer = layer.pipe(
+  Layer.provide(Bus.defaultLayer),
  Layer.provide(CrossSpawnSpawner.defaultLayer),
  Layer.provide(AppFileSystem.defaultLayer),
  Layer.provide(NodePath.layer),
--- a/packages/opencode/src/project/with-instance.ts
+++ b/packages/opencode/src/project/with-instance.ts
@@ -0,0 +1,12 @@
+import { AppRuntime } from "@/effect/app-runtime"
+import { context } from "./instance-context"
+import { InstanceStore } from "./instance-store"
+
+export async function provide<R>(input: { directory: string; fn: () => R }): Promise<R> {
+  const ctx = await AppRuntime.runPromise(
+    InstanceStore.Service.use((store) => store.load({ directory: input.directory })),
+  )
+  return context.provide(ctx, () => input.fn())
+}
+
+export * as WithInstance from "./with-instance"
--- a/packages/opencode/src/provider/models.ts
+++ b/packages/opencode/src/provider/models.ts
@@ -1,25 +1,13 @@
 import { Global } from "@opencode-ai/core/global"
-import * as Log from "@opencode-ai/core/util/log"
 import path from "path"
-import { Schema } from "effect"
+import { Context, Duration, Effect, Layer, Option, Schedule, Schema } from "effect"
+import { FetchHttpClient, HttpClient, HttpClientRequest } from "effect/unstable/http"
 import { Installation } from "../installation"
 import { Flag } from "@opencode-ai/core/flag/flag"
-import { lazy } from "@/util/lazy"
-import { Filesystem } from "@/util/filesystem"
 import { Flock } from "@opencode-ai/core/util/flock"
 import { Hash } from "@opencode-ai/core/util/hash"
-
-// Try to import bundled snapshot (generated at build time)
-// Falls back to undefined in dev mode when snapshot doesn't exist
-/* @ts-ignore */
-
-const log = Log.create({ service: "models.dev" })
-const source = url()
-const filepath = path.join(
-  Global.Path.cache,
-  source === "https://models.dev" ? "models.json" : `models-${Hash.fast(source)}.json`,
-)
-const ttl = 5 * 60 * 1000
+import { AppFileSystem } from "@opencode-ai/core/filesystem"
+import { withTransientReadRetry } from "@/util/effect-http-client"

 const Cost = Schema.Struct({
  input: Schema.Finite,
@@ -101,76 +89,110 @@ export const Provider = Schema.Struct({

 export type Provider = Schema.Schema.Type<typeof Provider>

-function url() {
-  return Flag.OPENCODE_MODELS_URL || "https://models.dev"
+export interface Interface {
+  readonly get: () => Effect.Effect<Record<string, Provider>>
+  readonly refresh: (force?: boolean) => Effect.Effect<void>
 }

-function fresh() {
-  return Date.now() - Number(Filesystem.stat(filepath)?.mtimeMs ?? 0) < ttl
-}
+export class Service extends Context.Service<Service, Interface>()("@opencode/ModelsDev") {}

-function skip(force: boolean) {
-  return !force && fresh()
-}
+export const layer: Layer.Layer<Service, never, AppFileSystem.Service | HttpClient.HttpClient> = Layer.effect(
+  Service,
+  Effect.gen(function* () {
+    const fs = yield* AppFileSystem.Service
+    const http = HttpClient.filterStatusOk(withTransientReadRetry(yield* HttpClient.HttpClient))

-const fetchApi = async () => {
-  const result = await fetch(`${url()}/api.json`, {
-    headers: { "User-Agent": Installation.USER_AGENT },
-    signal: AbortSignal.timeout(10000),
-  })
-  return { ok: result.ok, text: await result.text() }
-}
+    const source = Flag.OPENCODE_MODELS_URL || "https://models.dev"
+    const filepath = path.join(
+      Global.Path.cache,
+      source === "https://models.dev" ? "models.json" : `models-${Hash.fast(source)}.json`,
+    )
+    const ttl = Duration.minutes(5)
+    const lockKey = `models-dev:${filepath}`

-export const Data = lazy(async () => {
-  const result = await Filesystem.readJson(Flag.OPENCODE_MODELS_PATH ?? filepath).catch(() => {})
-  if (result) return result
-  // @ts-ignore
-  const snapshot = await import("./models-snapshot.js")
-    .then((m) => m.snapshot as Record<string, unknown>)
-    .catch(() => undefined)
-  if (snapshot) return snapshot
-  if (Flag.OPENCODE_DISABLE_MODELS_FETCH) return {}
-  return Flock.withLock(`models-dev:${filepath}`, async () => {
-    const result = await Filesystem.readJson(Flag.OPENCODE_MODELS_PATH ?? filepath).catch(() => {})
-    if (result) return result
-    const result2 = await fetchApi()
-    if (result2.ok) {
-      await Filesystem.write(filepath, result2.text).catch((e) => {
-        log.error("Failed to write models cache", { error: e })
-      })
-    }
-    return JSON.parse(result2.text)
-  })
-})
-
-export async function get() {
-  const result = await Data()
-  return result as Record<string, Provider>
-}
-
-export async function refresh(force = false) {
-  if (skip(force)) return Data.reset()
-  await Flock.withLock(`models-dev:${filepath}`, async () => {
-    if (skip(force)) return Data.reset()
-    const result = await fetchApi()
-    if (!result.ok) return
-    await Filesystem.write(filepath, result.text)
-    Data.reset()
-  }).catch((e) => {
-    log.error("Failed to fetch models.dev", {
-      error: e,
+    const fresh = Effect.fnUntraced(function* () {
+      const stat = yield* fs.stat(filepath).pipe(Effect.catch(() => Effect.succeed(undefined)))
+      if (!stat) return false
+      const mtime = Option.getOrElse(stat.mtime, () => new Date(0)).getTime()
+      return Date.now() - mtime < Duration.toMillis(ttl)
    })
-  })
-}

-if (!Flag.OPENCODE_DISABLE_MODELS_FETCH && !process.argv.includes("--get-yargs-completions")) {
-  void refresh()
-  setInterval(
-    async () => {
-      await refresh()
-    },
-    60 * 1000 * 60,
-  ).unref()
-}
+    const fetchApi = Effect.fn("ModelsDev.fetchApi")(function* () {
+      return yield* HttpClientRequest.get(`${source}/api.json`).pipe(
+        HttpClientRequest.setHeader("User-Agent", Installation.USER_AGENT),
+        http.execute,
+        Effect.flatMap((res) => res.text),
+        Effect.timeout("10 seconds"),
+      )
+    })
+
+    const loadFromDisk = fs.readJson(Flag.OPENCODE_MODELS_PATH ?? filepath).pipe(
+      Effect.catch(() => Effect.succeed(undefined)),
+      Effect.map((v) => v as Record<string, Provider> | undefined),
+    )
+
+    // Bundled at build time; absent in dev — `tryPromise` covers both.
+    const loadSnapshot = Effect.tryPromise({
+      // @ts-ignore — generated at build time, may not exist in dev
+      try: () => import("./models-snapshot.js").then((m) => m.snapshot as Record<string, Provider> | undefined),
+      catch: () => undefined,
+    }).pipe(Effect.catch(() => Effect.succeed(undefined)))
+
+    const fetchAndWrite = Effect.fn("ModelsDev.fetchAndWrite")(function* () {
+      const text = yield* fetchApi()
+      yield* fs.writeWithDirs(filepath, text)
+      return text
+    })
+
+    const populate = Effect.gen(function* () {
+      const fromDisk = yield* loadFromDisk
+      if (fromDisk) return fromDisk
+      const snapshot = yield* loadSnapshot
+      if (snapshot) return snapshot
+      if (Flag.OPENCODE_DISABLE_MODELS_FETCH) return {}
+      // Flock is cross-process: concurrent opencode CLIs can race on this cache file.
+      const text = yield* Effect.scoped(
+        Effect.gen(function* () {
+          yield* Flock.effect(lockKey)
+          return yield* fetchAndWrite()
+        }),
+      )
+      return JSON.parse(text) as Record<string, Provider>
+    }).pipe(Effect.withSpan("ModelsDev.populate"), Effect.orDie)
+
+    const [cachedGet, invalidate] = yield* Effect.cachedInvalidateWithTTL(populate, Duration.infinity)
+
+    const get = (): Effect.Effect<Record<string, Provider>> => cachedGet
+
+    const refresh = Effect.fn("ModelsDev.refresh")(function* (force = false) {
+      if (!force && (yield* fresh())) return
+      yield* Effect.scoped(
+        Effect.gen(function* () {
+          yield* Flock.effect(lockKey)
+          // Re-check under the lock: another process may have refreshed between
+          // our outer check and lock acquisition.
+          if (!force && (yield* fresh())) return
+          yield* fetchAndWrite()
+          yield* invalidate
+        }),
+      ).pipe(
+        Effect.tapCause((cause) => Effect.logError("Failed to fetch models.dev", { cause })),
+        Effect.ignore,
+      )
+    })
+
+    if (!Flag.OPENCODE_DISABLE_MODELS_FETCH && !process.argv.includes("--get-yargs-completions")) {
+      // Schedule.spaced runs the effect once, then waits between completions.
+      yield* Effect.forkScoped(refresh().pipe(Effect.repeat(Schedule.spaced("60 minutes")), Effect.ignore))
+    }
+
+    return Service.of({ get, refresh })
+  }),
+)
+
+export const defaultLayer: Layer.Layer<Service> = layer.pipe(
+  Layer.provide(FetchHttpClient.layer),
+  Layer.provide(AppFileSystem.defaultLayer),
+)

 export * as ModelsDev from "./models"
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -1074,7 +1074,7 @@ export function fromModelsDevProvider(provider: ModelsDev.Provider): Info {
 const layer: Layer.Layer<
  Service,
  never,
-  Config.Service | Auth.Service | Plugin.Service | AppFileSystem.Service | Env.Service
+  Config.Service | Auth.Service | Plugin.Service | AppFileSystem.Service | Env.Service | ModelsDev.Service
 > = Layer.effect(
  Service,
  Effect.gen(function* () {
@@ -1083,13 +1083,14 @@ const layer: Layer.Layer<
    const auth = yield* Auth.Service
    const env = yield* Env.Service
    const plugin = yield* Plugin.Service
+    const modelsDevSvc = yield* ModelsDev.Service

    const state = yield* InstanceState.make<State>(() =>
      Effect.gen(function* () {
        using _ = log.time("state")
        const bridge = yield* EffectBridge.make()
        const cfg = yield* config.get()
-        const modelsDev = yield* Effect.promise(() => ModelsDev.get())
+        const modelsDev = yield* modelsDevSvc.get()
        const database = mapValues(modelsDev, fromModelsDevProvider)

        const providers: Record<ProviderID, Info> = {} as Record<ProviderID, Info>
@@ -1722,6 +1723,7 @@ export const defaultLayer = Layer.suspend(() =>
    Layer.provide(Config.defaultLayer),
    Layer.provide(Auth.defaultLayer),
    Layer.provide(Plugin.defaultLayer),
+    Layer.provide(ModelsDev.defaultLayer),
  ),
 )

--- a/packages/opencode/src/server/global-lifecycle.ts
+++ b/packages/opencode/src/server/global-lifecycle.ts
@@ -0,0 +1,37 @@
+import { GlobalBus } from "@/bus/global"
+import { InstanceStore } from "@/project/instance-store"
+import * as Log from "@opencode-ai/core/util/log"
+import { Effect } from "effect"
+import { Event } from "./event"
+
+const log = Log.create({ service: "server" })
+
+export const emitGlobalDisposed = Effect.sync(() =>
+  GlobalBus.emit("event", {
+    directory: "global",
+    payload: {
+      type: Event.Disposed.type,
+      properties: {},
+    },
+  }),
+)
+
+export const disposeAllInstancesAndEmitGlobalDisposed = Effect.fn("Server.disposeAllInstancesAndEmitGlobalDisposed")(
+  function* (options?: { swallowErrors?: boolean }) {
+    const store = yield* InstanceStore.Service
+    yield* Effect.gen(function* () {
+      yield* options?.swallowErrors
+        ? store.disposeAll().pipe(
+            Effect.catchCause((cause) =>
+              Effect.sync(() => {
+                log.warn("global disposal failed", { cause })
+              }),
+            ),
+          )
+        : store.disposeAll()
+      yield* emitGlobalDisposed
+    }).pipe(Effect.uninterruptible)
+  },
+)
+
+export * as GlobalLifecycle from "./global-lifecycle"
--- a/packages/opencode/src/server/routes/global.ts
+++ b/packages/opencode/src/server/routes/global.ts
@@ -1,25 +1,24 @@
 import { Hono, type Context } from "hono"
 import { describeRoute, resolver, validator } from "hono-openapi"
 import { streamSSE } from "hono/streaming"
-import { Effect, Schema } from "effect"
+import { Effect } from "effect"
 import z from "zod"
 import { BusEvent } from "@/bus/bus-event"
 import { SyncEvent } from "@/sync"
 import { GlobalBus } from "@/bus/global"
+import { Bus } from "@/bus"
 import { AppRuntime } from "@/effect/app-runtime"
 import { AsyncQueue } from "@/util/queue"
-import { Instance } from "../../project/instance"
 import { Installation } from "@/installation"
 import { InstallationVersion } from "@opencode-ai/core/installation/version"
 import * as Log from "@opencode-ai/core/util/log"
 import { lazy } from "../../util/lazy"
 import { Config } from "@/config/config"
 import { errors } from "../error"
+import { disposeAllInstancesAndEmitGlobalDisposed } from "../global-lifecycle"

 const log = Log.create({ service: "server" })

-export const GlobalDisposedEvent = BusEvent.define("global.disposed", Schema.Struct({}))
-
 async function streamEvents(c: Context, subscribe: (q: AsyncQueue<string | null>) => () => void) {
  return streamSSE(c, async (stream) => {
    const q = new AsyncQueue<string | null>()
@@ -28,6 +27,7 @@ async function streamEvents(c: Context, subscribe: (q: AsyncQueue<string | null>
    q.push(
      JSON.stringify({
        payload: {
+          id: Bus.createID(),
          type: "server.connected",
          properties: {},
        },
@@ -39,6 +39,7 @@ async function streamEvents(c: Context, subscribe: (q: AsyncQueue<string | null>
      q.push(
        JSON.stringify({
          payload: {
+            id: Bus.createID(),
            type: "server.heartbeat",
            properties: {},
          },
@@ -178,8 +179,13 @@ export const GlobalRoutes = lazy(() =>
      validator("json", Config.Info.zod),
      async (c) => {
        const config = c.req.valid("json")
-        const next = await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.updateGlobal(config)))
-        return c.json(next)
+        const result = await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.updateGlobal(config)))
+        if (result.changed) {
+          void AppRuntime.runPromise(disposeAllInstancesAndEmitGlobalDisposed({ swallowErrors: true })).catch(
+            () => undefined,
+          )
+        }
+        return c.json(result.info)
      },
    )
    .post(
@@ -200,14 +206,7 @@ export const GlobalRoutes = lazy(() =>
        },
      }),
      async (c) => {
-        await Instance.disposeAll()
-        GlobalBus.emit("event", {
-          directory: "global",
-          payload: {
-            type: GlobalDisposedEvent.type,
-            properties: {},
-          },
-        })
+        await AppRuntime.runPromise(disposeAllInstancesAndEmitGlobalDisposed())
        return c.json(true)
      },
    )
--- a/packages/opencode/src/server/routes/instance/AGENTS.md
+++ b/packages/opencode/src/server/routes/instance/AGENTS.md
@@ -0,0 +1,8 @@
+# Instance Route Parity
+
+This directory contains the legacy Hono instance routes and the experimental Effect HttpApi implementation under `httpapi/`. Keep them behaviorally aligned.
+
+- When adding, removing, or changing a legacy Hono route, update the matching Effect HttpApi group and handler in `httpapi/` in the same change unless the route is intentionally unsupported.
+- When changing an Effect HttpApi route, verify the legacy Hono route has the same public behavior, request shape, response shape, status codes, and instance/workspace routing semantics.
+- Keep OpenAPI/SDK-visible schemas aligned. If a difference is only an OpenAPI generation artifact, prefer fixing the source schema first; use `httpapi/public.ts` normalization only for compatibility shims that cannot be represented cleanly in the source schema.
+- Add or update parity coverage in `test/server/httpapi-bridge.test.ts` or the focused HttpApi tests when behavior or schema parity could regress.
--- a/packages/opencode/src/server/routes/instance/config.ts
+++ b/packages/opencode/src/server/routes/instance/config.ts
@@ -1,11 +1,16 @@
 import { Hono } from "hono"
 import { describeRoute, validator, resolver } from "hono-openapi"
-import z from "zod"
 import { Config } from "@/config/config"
+import { InstanceState } from "@/effect/instance-state"
+import { InstanceStore } from "@/project/instance-store"
 import { Provider } from "@/provider/provider"
 import { errors } from "../../error"
 import { lazy } from "@/util/lazy"
-import { jsonRequest } from "./trace"
+import { jsonRequest, runRequest } from "./trace"
+import { Effect } from "effect"
+import * as Log from "@opencode-ai/core/util/log"
+
+const log = Log.create({ service: "server.config" })

 export const ConfigRoutes = lazy(() =>
  new Hono()
@@ -51,13 +56,28 @@ export const ConfigRoutes = lazy(() =>
        },
      }),
      validator("json", Config.Info.zod),
-      async (c) =>
-        jsonRequest("ConfigRoutes.update", c, function* () {
-          const config = c.req.valid("json")
-          const cfg = yield* Config.Service
-          yield* cfg.update(config)
-          return config
-        }),
+      async (c) => {
+        const result = await runRequest(
+          "ConfigRoutes.update",
+          c,
+          Effect.gen(function* () {
+            const config = c.req.valid("json")
+            const cfg = yield* Config.Service
+            yield* cfg.update(config)
+            return { config, ctx: yield* InstanceState.context }
+          }),
+        )
+        const response = c.json(result.config)
+        void runRequest(
+          "ConfigRoutes.update.dispose",
+          c,
+          InstanceStore.Service.use((store) => store.dispose(result.ctx)).pipe(
+            Effect.uninterruptible,
+            Effect.catchCause((cause) => Effect.sync(() => log.warn("instance disposal failed", { cause }))),
+          ),
+        )
+        return response
+      },
    )
    .get(
      "/providers",
--- a/packages/opencode/src/server/routes/instance/event.ts
+++ b/packages/opencode/src/server/routes/instance/event.ts
@@ -42,6 +42,7 @@ export const EventRoutes = () =>

        q.push(
          JSON.stringify({
+            id: Bus.createID(),
            type: "server.connected",
            properties: {},
          }),
@@ -51,6 +52,7 @@ export const EventRoutes = () =>
        const heartbeat = setInterval(() => {
          q.push(
            JSON.stringify({
+              id: Bus.createID(),
              type: "server.heartbeat",
              properties: {},
            }),
--- a/packages/opencode/src/server/routes/instance/httpapi/api.ts
+++ b/packages/opencode/src/server/routes/instance/httpapi/api.ts
@@ -19,6 +19,7 @@ import { SessionApi } from "./groups/session"
 import { SyncApi } from "./groups/sync"
 import { TuiApi } from "./groups/tui"
 import { WorkspaceApi } from "./groups/workspace"
+import { V2Api } from "./groups/v2"

 // SSE event schemas built from the same BusEvent/SyncEvent registries that
 // the Hono spec uses, so both specs emit identical Event/SyncEvent components.
@@ -40,6 +41,7 @@ export const InstanceHttpApi = HttpApi.make("opencode-instance")
  .addHttpApi(ProviderApi)
  .addHttpApi(SessionApi)
  .addHttpApi(SyncApi)
+  .addHttpApi(V2Api)
  .addHttpApi(TuiApi)
  .addHttpApi(WorkspaceApi)

--- a/packages/opencode/src/server/routes/instance/httpapi/event.ts
+++ b/packages/opencode/src/server/routes/instance/httpapi/event.ts
@@ -41,12 +41,12 @@ function eventResponse(bus: Bus.Interface) {
  const events = bus.subscribeAll().pipe(Stream.takeUntil((event) => event.type === Bus.InstanceDisposed.type))
  const heartbeat = Stream.tick("10 seconds").pipe(
    Stream.drop(1),
-    Stream.map(() => ({ type: "server.heartbeat", properties: {} })),
+    Stream.map(() => ({ id: Bus.createID(), type: "server.heartbeat", properties: {} })),
  )

  log.info("event connected")
  return HttpServerResponse.stream(
-    Stream.make({ type: "server.connected", properties: {} }).pipe(
+    Stream.make({ id: Bus.createID(), type: "server.connected", properties: {} }).pipe(
      Stream.concat(events.pipe(Stream.merge(heartbeat, { haltStrategy: "left" }))),
      Stream.map(eventData),
      Stream.pipeThroughChannel(Sse.encode()),
--- a/packages/opencode/src/server/routes/instance/httpapi/groups/global.ts
+++ b/packages/opencode/src/server/routes/instance/httpapi/groups/global.ts
@@ -1,6 +1,7 @@
 import { Config } from "@/config/config"
 import { BusEvent } from "@/bus/bus-event"
 import { SyncEvent } from "@/sync"
+import "@/server/event"
 import { Schema } from "effect"
 import { HttpApi, HttpApiEndpoint, HttpApiError, HttpApiGroup, OpenApi } from "effect/unstable/httpapi"
 import { described } from "./metadata"
--- a/packages/opencode/src/server/routes/instance/httpapi/groups/v2.ts
+++ b/packages/opencode/src/server/routes/instance/httpapi/groups/v2.ts
@@ -0,0 +1,14 @@
+import { HttpApi, OpenApi } from "effect/unstable/httpapi"
+import { MessageGroup } from "./v2/message"
+import { SessionGroup } from "./v2/session"
+
+export const V2Api = HttpApi.make("v2")
+  .add(SessionGroup)
+  .add(MessageGroup)
+  .annotateMerge(
+    OpenApi.annotations({
+      title: "opencode experimental HttpApi",
+      version: "0.0.1",
+      description: "Experimental HttpApi surface for selected instance routes.",
+    }),
+  )
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Kit Langton	f2f4561d1a	feat(server): Server.openapi() backed by HttpApi spec Switch the OpenAPI document used by the SDK build (and `bun dev generate`) from the legacy Hono backend to `OpenApi.fromApi(PublicApi)`. The Effect HttpApi backend already covers every Hono route — the bridge test in `httpapi-bridge.test.ts` audits this — and `PublicApi` already applies the legacy-shape transforms (instance query params, optional-null stripping, SSE schemas, component renames). The spec-emitting path was the last piece still rooted in Hono. The Hono path is preserved as `Server.openapiHono()` and `bun dev generate --hono` so reviewers can diff the two outputs while the Hono backend lingers; both go away with the Hono backend itself. Verified the new default matches the previous `--httpapi` output byte-for-byte and the SDK build round-trips cleanly.	2026-05-03 00:05:57 -04:00
Kit Langton	bd32252a7e	refactor(cli/providers): Stage 4 — drop inline AppRuntime.runPromise calls (#25532 )	2026-05-02 23:42:40 -04:00
Kit Langton	1717d636a2	refactor(cli/mcp+agent): Stage 4 — drop AppRuntime.runPromise bridges (#25530 )	2026-05-02 23:40:59 -04:00
Aiden Cline	8e016b4703	fix: regression w/ auth login where stderr was ignored instead of inherited (#25529 )	2026-05-02 22:36:02 -05:00
opencode-agent[bot]	b89d48a2a4	chore: update nix node_modules hashes	2026-05-03 03:25:46 +00:00
Dax	33312bfd1b	fix(session): encode v2 session responses (#25528 )	2026-05-03 03:24:46 +00:00
opencode-agent[bot]	3f1ce36418	chore: generate	2026-05-03 03:23:47 +00:00
Kit Langton	0e13279545	refactor(cli): convert agent / providers / mcp to effectCmd (#25525 )	2026-05-02 23:22:44 -04:00
Kit Langton	5f03d892c0	fix(httpapi): pagination Link header echoes request host (#25527 )	2026-05-02 23:19:33 -04:00
Kit Langton	bdabb102fe	refactor(cli/stats): Stage 4 — fully Effect-native body (#25523 )	2026-05-02 23:08:26 -04:00
Kit Langton	a79a6594b0	chore: bump Effect beta (#25524 )	2026-05-02 23:08:13 -04:00
opencode-agent[bot]	a3d282a4c2	chore: generate	2026-05-03 03:04:40 +00:00
Kit Langton	db24f89313	refactor(cli): convert mcp list, auth, auth list, logout to effectCmd (#25521 )	2026-05-03 03:03:32 +00:00
opencode-agent[bot]	31cb0bfa4f	chore: generate	2026-05-03 02:54:20 +00:00
Kit Langton	af9fdf0a1c	refactor(cli): convert github subcommands to effectCmd (#25522 )	2026-05-02 22:53:20 -04:00
Youssef Achy	be88cd5cb9	chore(opencode): exclude .map files from CLI binary build (#25500 )	2026-05-02 22:52:32 -04:00
Luke Parker	b4cc7d13b6	fix(desktop): limit zoom handler to zoom keys (#25516 )	2026-05-03 02:44:52 +00:00
Aiden Cline	0ba013f8de	chore: rm log statement (#25470 )	2026-05-02 21:43:48 -05:00
Kit Langton	0956b15c52	refactor(acp): drop async from synchronous ACP.init (#25520 )	2026-05-02 22:38:44 -04:00
opencode-agent[bot]	61150f6391	chore: generate	2026-05-03 02:36:41 +00:00
Kit Langton	7409dcc6bd	refactor(cli): convert run command to effectCmd (#25519 )	2026-05-02 22:35:20 -04:00
Kit Langton	2829943ad1	refactor(cli): convert debug wait, agent list, acp to effectCmd (#25518 )	2026-05-02 22:31:20 -04:00
Kit Langton	c4311dda31	feat(cli): allow effectCmd instance to be a function of args (#25517 )	2026-05-03 02:27:41 +00:00
Kit Langton	ad05a46d74	refactor(lifecycle): bootstrap as pure orchestration (#25510 )	2026-05-02 22:26:54 -04:00
opencode-agent[bot]	a6cadba814	chore: generate	2026-05-03 02:10:52 +00:00
Dax	a3bc5d35b0	Refactor v2 session events as schemas (#24512 )	2026-05-02 22:09:48 -04:00
Kit Langton	1409a0715c	refactor(cli): convert web + account to effectCmd (instance: false) (#25512 )	2026-05-02 21:59:35 -04:00
Kit Langton	e98c291866	feat(cli): add instance: false opt-out to effectCmd (#25507 )	2026-05-03 01:44:06 +00:00
Kit Langton	e709dc34fb	feat: default HTTP API backend to on for dev/beta channels	2026-05-02 20:43:23 -04:00
opencode-agent[bot]	9293cddb3a	chore: generate	2026-05-03 00:43:16 +00:00
Kit Langton	68b3448b09	refactor(cli): drop redundant explicit Effect.ensuring(store.dispose) (#25503 )	2026-05-02 20:42:09 -04:00
opencode-agent[bot]	80f2b13a55	chore: generate	2026-05-03 00:40:21 +00:00
Kit Langton	7d91d3b1ed	Normalize instance lifecycle wiring (#25501 )	2026-05-02 20:39:20 -04:00
opencode-agent[bot]	a6464062b7	chore: generate	2026-05-03 00:32:24 +00:00
Kit Langton	fd01dc9c89	test(httpapi): add route exerciser	2026-05-02 20:31:21 -04:00
opencode-agent[bot]	d10fb88b66	chore: generate	2026-05-03 00:10:53 +00:00
Luke Parker	6b68b1020e	docs: clarify LSP and formatter opt-in config (#25502 )	2026-05-03 00:09:50 +00:00
Kit Langton	85bb9007ba	feat(cli): auto-dispose InstanceContext after effectCmd handlers (#25481 )	2026-05-02 19:54:13 -04:00
opencode-agent[bot]	9bef88e3b0	chore: generate	2026-05-02 23:34:40 +00:00
Kit Langton	f98053c34e	fix(instance): run bootstrap from instance store (#25475 )	2026-05-02 19:33:38 -04:00
opencode-agent[bot]	36007aecf4	chore: generate	2026-05-02 23:23:53 +00:00
Kit Langton	4de44bbbef	refactor(cli): convert debug subcommands to effectCmd (#25479 )	2026-05-02 19:22:51 -04:00
opencode-agent[bot]	9d03d4419e	chore: generate	2026-05-02 23:20:15 +00:00
Kit Langton	7ab1c1c74a	refactor(cli): convert debug agent command to effectCmd (#25485 )	2026-05-02 19:19:06 -04:00
Luke Parker	3f459819ba	feat: refactor bash tool with shell-aware prompts for bash, pwsh+powershell, and cmd (#20039 )	2026-05-03 09:18:48 +10:00
Kit Langton	1986a6e817	refactor(cli): convert session subcommands to effectCmd (#25483 )	2026-05-02 18:15:28 -04:00
opencode-agent[bot]	dfe1325fca	chore: generate	2026-05-02 22:02:14 +00:00
Kit Langton	c1686c6ddc	refactor(cli): convert stats command to effectCmd (#25474 )	2026-05-02 18:01:06 -04:00
Kit Langton	79b6ce5db4	refactor(cli): convert import command to effectCmd (#25467 )	2026-05-02 21:56:32 +00:00
Kit Langton	0c816eb4b1	refactor(cli): convert plugin command to effectCmd (#25473 )	2026-05-02 17:55:13 -04:00
Kit Langton	e318e173d8	refactor(cli): convert export command to effectCmd (#25471 )	2026-05-02 17:45:41 -04:00
opencode-agent[bot]	b314781a1a	chore: generate	2026-05-02 21:02:46 +00:00
Kit Langton	8396d6b016	refactor(cli): convert pr command to effectCmd (#25465 )	2026-05-02 17:01:46 -04:00
opencode	43e20874f4	sync release versions for v1.14.33	2026-05-02 19:53:06 +00:00
opencode-agent[bot]	c444e971b0	chore: generate	2026-05-02 19:27:24 +00:00
HyeokjaeLee	430bde9e9b	fix(instance): restore InstanceBootstrap init parameter for non-Effec… (#25449 ) Co-authored-by: Dax Raad <d@ironbay.co>	2026-05-02 15:26:30 -04:00
Kit Langton	05b82a6a30	refactor(cli): drop ModelsDev Promise compat shim (#25460 )	2026-05-02 15:11:01 -04:00
Kit Langton	6cd02c05c2	fix(telemetry): emit Tool.execute span for MCP and plugin tools (#25452 )	2026-05-02 14:49:56 -04:00
opencode-agent[bot]	b3a7513765	chore: generate	2026-05-02 18:00:11 +00:00
Kit Langton	f8738c9002	feat(models): effectify ModelsDev as Service (#25434 )	2026-05-02 13:59:08 -04:00
Aiden Cline	b460db15d7	tweak: allow read tool to accept offset of 0 (#25431 )	2026-05-02 11:12:07 -05:00
opencode-agent[bot]	ff4779ca11	chore: generate	2026-05-02 16:09:04 +00:00
Kit Langton	146ff8ad85	feat(cli): add effectCmd wrapper + convert models command (#25429 )	2026-05-02 12:08:04 -04:00
OpeOginni	0d0ec7dc46	docs: CLI docs for current commands and flags (#25399 )	2026-05-02 11:07:22 -05:00
Jérôme Benoit	1ea6e6cd4b	fix(nix): remove stale packages/shared filter (#24930 )	2026-05-02 10:49:51 -05:00
opencode-agent[bot]	96061222d2	chore: generate	2026-05-02 15:45:21 +00:00
Kit Langton	3b9155714d	Delete Instance.dispose and Instance.reload (#25427 )	2026-05-02 11:44:16 -04:00
opencode	7371db5cc6	sync release versions for v1.14.32	2026-05-02 15:34:12 +00:00
Kit Langton	b09b7d28b8	refactor(instance-store): consolidate dispose helpers (#25424 )	2026-05-02 11:21:40 -04:00
opencode-agent[bot]	31ed4602e1	chore: update nix node_modules hashes	2026-05-02 15:16:12 +00:00
Sebastian	6a76346734	upgrade opentui to 0.2.2 (#25420 )	2026-05-02 15:01:53 +00:00
Kit Langton	78b3000031	fix(tui): keep shell-mode prompt editable (#25419 )	2026-05-02 10:56:27 -04:00
Kit Langton	4c4860fb24	Replace Instance.disposeAll/load with fixture helper (#25418 )	2026-05-02 10:56:15 -04:00
Kit Langton	5242a1c6b4	fix(httpapi): install Instance ALS for adapter Promise bridge (#25417 )	2026-05-02 10:49:44 -04:00
Kit Langton	075f876e6f	fix(httpapi): re-land workspace create payload accepts missing extra (#25412 )	2026-05-02 09:35:39 -04:00
opencode-agent[bot]	a849812e9f	chore: generate	2026-05-02 13:09:14 +00:00
Kit Langton	d99dde6306	Migrate test inits from Promise to Effect (#25377 )	2026-05-02 09:07:59 -04:00
opencode-agent[bot]	becf57ee6a	chore: generate	2026-05-02 04:03:59 +00:00
Kit Langton	f33aec1139	Convert LoadInput.init to Effect + extract InstanceBootstrap as a Service (#25376 )	2026-05-02 00:02:52 -04:00
Kit Langton	1571933096	Drop ALS fallbacks from containsPath and workspace routing (#25374 )	2026-05-02 03:06:22 +00:00
Kit Langton	160928a9a9	Extract InstanceStore.provide helper (#25372 )	2026-05-01 22:42:03 -04:00
opencode-agent[bot]	d297c29f22	chore: generate	2026-05-02 02:19:48 +00:00
Kit Langton	0b498dd448	fix(httpapi): preserve OpenAPI parameter parity (#25291 )	2026-05-01 22:18:52 -04:00
Kit Langton	cec9c6122a	Move instance loading into Effect service (#25277 )	2026-05-01 22:18:06 -04:00
Zeke Sikelianos	51e310c9ce	fix(read): prevent unsupported image formats from being sending to provider (#21114 ) Co-authored-by: Aiden Cline <aidenpcline@gmail.com>	2026-05-01 18:14:22 -05:00