diff --git a/cloudcompare/agent-harness/cli_anything/cloudcompare/skills/SKILL.md b/cloudcompare/agent-harness/cli_anything/cloudcompare/skills/SKILL.md
index 5fd164cc7..afa3a2ffd 100644
--- a/cloudcompare/agent-harness/cli_anything/cloudcompare/skills/SKILL.md
+++ b/cloudcompare/agent-harness/cli_anything/cloudcompare/skills/SKILL.md
@@ -1,15 +1,15 @@
 ---
 name: "cli-anything-cloudcompare"
-description: "Command-line interface for Cloudcompare - Agent-friendly command-line harness for [CloudCompare](https://cloudcompare.org) — the open-source 3..."
+description: "Command-line interface for CloudCompare — Agent-friendly harness for CloudCompare, the open-source 3D point cloud and mesh processing software. Supports 41 commands across 9 groups: project management, session control, point cloud operations (subsample, filter, segment, analyze), mesh operations, distance computation (C2C, C2M), transformations (ICP, matrix), export (LAS/LAZ/PLY/PCD/OBJ/STL/E57), and interactive REPL."
 ---
 
 # cli-anything-cloudcompare
 
 Agent-friendly command-line harness for [CloudCompare](https://cloudcompare.org) — the open-source 3D point cloud and mesh processing software.
 
-## Installation
+**41 commands** across 9 groups.
 
-This CLI is installed as part of the cli-anything-cloudcompare package:
+## Installation
 
 ```bash
 pip install cli-anything-cloudcompare
@@ -17,59 +17,773 @@ pip install cli-anything-cloudcompare
 
 **Prerequisites:**
 - Python 3.10+
-- Cloudcompare must be installed on your system
+- CloudCompare installed on your system
+  - Linux (Flatpak): `flatpak install flathub org.cloudcompare.CloudCompare`
+  - macOS/Windows: download from https://cloudcompare.org
 
-## Usage
+**Tested with:** CloudCompare 2.13.2 (Flatpak, Linux)
 
-### Basic Commands
+## Global Options
+
+These options must be placed **before** the subcommand:
 
 ```bash
-# Show help
-cli-anything-cloudcompare --help
-
-# Start interactive REPL mode
-cli-anything-cloudcompare
-
-# Create a new project
-cli-anything-cloudcompare project new -o project.json
-
-# Run with JSON output (for agent consumption)
-cli-anything-cloudcompare --project project.json --json project info
+cli-anything-cloudcompare [--project FILE] [--json] COMMAND [ARGS]...
 ```
 
-## Examples
+| Option | Description |
+|---|---|
+| `-p, --project TEXT` | Path to project JSON file |
+| `--json` | Output results as JSON (for agent consumption) |
 
-### Create a New Project
+## Command Groups
 
-Create a new cloudcompare project file.
+### 1. project — Project Management (3 commands)
+
+#### project new
+Create a new empty project file.
 
 ```bash
+# Create a project with default name
 cli-anything-cloudcompare project new -o myproject.json
-# Or with JSON output for programmatic use
+
+# Create a project with a custom name
+cli-anything-cloudcompare project new -o myproject.json -n "Bridge Survey 2024"
+
+# JSON output for agents
 cli-anything-cloudcompare --json project new -o myproject.json
 ```
 
-### Interactive REPL Session
+Options: `-o/--output TEXT` (required), `-n/--name TEXT`
 
-Start an interactive session with undo support.
+#### project info
+Show project info and loaded entities.
 
 ```bash
-cli-anything-cloudcompare
-# Enter commands interactively
-# Use 'help' to see available commands
-# Use 'session undo' to revert the last operation
+cli-anything-cloudcompare --project myproject.json project info
+
+# JSON output
+cli-anything-cloudcompare --project myproject.json --json project info
 ```
 
+#### project status
+Show quick project status (cloud count, mesh count, last operation).
+
+```bash
+cli-anything-cloudcompare --project myproject.json project status
+```
+
+---
+
+### 2. session — Session Management (4 commands)
+
+#### session save
+Save the current project state to disk.
+
+```bash
+cli-anything-cloudcompare --project myproject.json session save
+```
+
+#### session history
+Show recent operation history.
+
+```bash
+# Show last 10 operations (default)
+cli-anything-cloudcompare --project myproject.json session history
+
+# Show last 5 operations
+cli-anything-cloudcompare --project myproject.json session history -n 5
+```
+
+Options: `-n/--last INTEGER`
+
+#### session set-format
+Update the default export format for future operations.
+
+```bash
+# Set default cloud export to LAS
+cli-anything-cloudcompare --project myproject.json session set-format --cloud-fmt LAS --cloud-ext las
+
+# Set default mesh export to OBJ
+cli-anything-cloudcompare --project myproject.json session set-format --mesh-fmt OBJ --mesh-ext obj
+
+# Set both cloud and mesh defaults
+cli-anything-cloudcompare --project myproject.json session set-format \
+  --cloud-fmt PLY --cloud-ext ply \
+  --mesh-fmt STL --mesh-ext stl
+```
+
+Options: `--cloud-fmt TEXT`, `--cloud-ext TEXT`, `--mesh-fmt TEXT`, `--mesh-ext TEXT`
+
+#### session undo
+Remove the last operation from history (soft undo — does not delete output files).
+
+```bash
+cli-anything-cloudcompare --project myproject.json session undo
+```
+
+---
+
+### 3. cloud — Point Cloud Operations (21 commands)
+
+All cloud commands take `CLOUD_INDEX` (0-based integer from `cloud list`) and most accept `--add-to-project` to register the output back into the project.
+
+#### cloud add
+Add a point cloud file to the project.
+
+```bash
+# Add a LAS file
+cli-anything-cloudcompare --project myproject.json cloud add /data/scan.las
+
+# Add with a label
+cli-anything-cloudcompare --project myproject.json cloud add /data/scan.las -l "roof scan"
+```
+
+Options: `-l/--label TEXT`
+
+#### cloud list
+List all clouds currently in the project.
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud list
+
+# JSON output for parsing indices
+cli-anything-cloudcompare --project myproject.json --json cloud list
+```
+
+#### cloud convert
+Convert a cloud from one format to another (format determined by file extension).
+
+```bash
+# LAS → PLY
+cli-anything-cloudcompare cloud convert /data/scan.las /data/scan.ply
+
+# PCD → LAS
+cli-anything-cloudcompare cloud convert /data/cloud.pcd /data/cloud.las
+```
+
+#### cloud subsample
+Reduce the number of points using RANDOM, SPATIAL, or OCTREE method.
+
+```bash
+# Random: keep 100 000 points
+cli-anything-cloudcompare --project myproject.json cloud subsample 0 \
+  -o /data/sub_random.las -m random -n 100000
+
+# Spatial: minimum distance 0.05 m between points
+cli-anything-cloudcompare --project myproject.json cloud subsample 0 \
+  -o /data/sub_spatial.las -m spatial -n 0.05
+
+# Octree: level 8
+cli-anything-cloudcompare --project myproject.json cloud subsample 0 \
+  -o /data/sub_octree.las -m octree -n 8 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `-m/--method [random|spatial|octree]`, `-n/--param FLOAT`, `--add-to-project`
+
+#### cloud crop
+Crop a cloud to an axis-aligned bounding box.
+
+```bash
+# Keep points inside the box
+cli-anything-cloudcompare --project myproject.json cloud crop 0 \
+  -o /data/cropped.las \
+  --xmin 0.0 --ymin 0.0 --zmin 0.0 \
+  --xmax 10.0 --ymax 10.0 --zmax 5.0
+
+# Keep points OUTSIDE the box
+cli-anything-cloudcompare --project myproject.json cloud crop 0 \
+  -o /data/exterior.las \
+  --xmin 0.0 --ymin 0.0 --zmin 0.0 \
+  --xmax 10.0 --ymax 10.0 --zmax 5.0 --outside
+```
+
+Options: `-o/--output TEXT` (required), `--xmin/ymin/zmin/xmax/ymax/zmax FLOAT` (all required), `--outside`, `--add-to-project`
+
+#### cloud normals
+Compute surface normals via the octree method.
+
+```bash
+# Compute normals at octree level 6
+cli-anything-cloudcompare --project myproject.json cloud normals 0 \
+  -o /data/with_normals.ply --level 6
+
+# Compute normals oriented toward +Z
+cli-anything-cloudcompare --project myproject.json cloud normals 0 \
+  -o /data/with_normals.ply --level 6 --orientation plus_z --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--level INTEGER` (1–10), `--orientation [plus_x|plus_y|plus_z|minus_x|minus_y|minus_z]`, `--add-to-project`
+
+#### cloud invert-normals
+Flip all normal vectors in the cloud.
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud invert-normals 0 \
+  -o /data/flipped_normals.ply --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--add-to-project`
+
+#### cloud filter-sor
+Statistical Outlier Removal — removes isolated noise points.
+
+```bash
+# Default parameters (k=6 neighbours, 1.0 std ratio)
+cli-anything-cloudcompare --project myproject.json cloud filter-sor 0 \
+  -o /data/denoised.las
+
+# Custom parameters
+cli-anything-cloudcompare --project myproject.json cloud filter-sor 0 \
+  -o /data/denoised.las --nb-points 12 --std-ratio 2.0 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--nb-points INTEGER`, `--std-ratio FLOAT`, `--add-to-project`
+
+#### cloud noise-filter
+Remove noisy points using the PCL noise filter (KNN or radius mode).
+
+```bash
+# KNN mode (default)
+cli-anything-cloudcompare --project myproject.json cloud noise-filter 0 \
+  -o /data/clean.las --knn 8 --noisiness 1.0
+
+# Radius mode
+cli-anything-cloudcompare --project myproject.json cloud noise-filter 0 \
+  -o /data/clean.las --radius 0.1 --use-radius --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--knn INTEGER`, `--noisiness FLOAT`, `--radius FLOAT`, `--use-radius`, `--absolute`, `--add-to-project`
+
+#### cloud filter-csf
+Ground filtering using the Cloth Simulation Filter (CSF) algorithm. Separates ground from off-ground points (buildings, vegetation).
+
+```bash
+# Extract ground only — mixed terrain
+cli-anything-cloudcompare --project myproject.json cloud filter-csf 0 \
+  --ground /data/ground.las --scene relief
+
+# Split ground + off-ground — urban scene
+cli-anything-cloudcompare --project myproject.json cloud filter-csf 0 \
+  --ground /data/ground.las \
+  --offground /data/buildings.las \
+  --scene flat --cloth-resolution 0.5 --class-threshold 0.3
+
+# Steep forested slope with slope post-processing
+cli-anything-cloudcompare --project myproject.json cloud filter-csf 0 \
+  --ground /data/terrain.las --scene slope --proc-slope --add-to-project
+```
+
+Options: `-g/--ground TEXT` (required), `-u/--offground TEXT`, `--scene [slope|relief|flat]`, `--cloth-resolution FLOAT`, `--class-threshold FLOAT`, `--max-iteration INTEGER`, `--proc-slope`, `--add-to-project`
+
+#### cloud filter-sf
+Filter a cloud by scalar field value range (keep points where SF ∈ [min, max]).
+
+```bash
+# Keep points with SF value between 10 and 50
+cli-anything-cloudcompare --project myproject.json cloud filter-sf 0 \
+  -o /data/filtered.las --min 10.0 --max 50.0
+
+# Filter using a specific SF index
+cli-anything-cloudcompare --project myproject.json cloud filter-sf 0 \
+  -o /data/filtered.las --min 0.0 --max 1.5 --sf-index 2 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--min FLOAT` (required), `--max FLOAT` (required), `--sf-index INTEGER`, `--add-to-project`
+
+#### cloud sf-from-coord
+Convert a coordinate axis (X/Y/Z) to a scalar field. Commonly used to create a height (Z) scalar field.
+
+```bash
+# Create Z scalar field (height)
+cli-anything-cloudcompare --project myproject.json cloud sf-from-coord 0 \
+  -o /data/with_z_sf.las --dim z --add-to-project
+
+# Create X scalar field with a specific active index
+cli-anything-cloudcompare --project myproject.json cloud sf-from-coord 0 \
+  -o /data/with_x_sf.las --dim x --sf-index 0
+```
+
+Options: `-o/--output TEXT` (required), `--dim [x|y|z]` (default: z), `--sf-index INTEGER`, `--add-to-project`
+
+#### cloud sf-filter-z
+Convenience command: convert Z → scalar field and filter by height range in one step.
+
+```bash
+# Extract points between z=1.0 m and z=2.5 m
+cli-anything-cloudcompare --project myproject.json cloud sf-filter-z 0 \
+  -o /data/slice.las --min 1.0 --max 2.5 --add-to-project
+
+# Only apply upper bound
+cli-anything-cloudcompare --project myproject.json cloud sf-filter-z 0 \
+  -o /data/below_5m.las --max 5.0
+```
+
+Options: `-o/--output TEXT` (required), `--min FLOAT`, `--max FLOAT`, `--add-to-project`
+
+#### cloud sf-to-rgb
+Convert the active scalar field to RGB colours.
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud sf-to-rgb 0 \
+  -o /data/coloured.ply --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--add-to-project`
+
+#### cloud rgb-to-sf
+Convert RGB colours to a scalar field (luminance value).
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud rgb-to-sf 0 \
+  -o /data/luminance.las --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--add-to-project`
+
+#### cloud curvature
+Compute curvature scalar field (MEAN or GAUSS).
+
+```bash
+# Mean curvature with radius 0.5 m
+cli-anything-cloudcompare --project myproject.json cloud curvature 0 \
+  -o /data/curvature.las --type mean --radius 0.5
+
+# Gaussian curvature
+cli-anything-cloudcompare --project myproject.json cloud curvature 0 \
+  -o /data/curvature.las --type gauss --radius 0.5 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--type [mean|gauss]`, `-r/--radius FLOAT`, `--add-to-project`
+
+#### cloud roughness
+Compute roughness scalar field (deviation from local best-fit plane).
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud roughness 0 \
+  -o /data/roughness.las --radius 0.2 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `-r/--radius FLOAT`, `--add-to-project`
+
+#### cloud density
+Compute point density scalar field.
+
+```bash
+# KNN density
+cli-anything-cloudcompare --project myproject.json cloud density 0 \
+  -o /data/density.las --type knn --radius 0.5
+
+# Surface density
+cli-anything-cloudcompare --project myproject.json cloud density 0 \
+  -o /data/density.las --type surface --radius 1.0 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `-r/--radius FLOAT`, `--type [knn|surface|volume]`, `--add-to-project`
+
+#### cloud segment-cc
+Segment cloud into connected components (clusters). Each component is saved as a separate file.
+
+```bash
+# Segment with octree level 8, minimum 100 points per component
+cli-anything-cloudcompare --project myproject.json cloud segment-cc 0 \
+  -o /data/components/ --octree-level 8 --min-points 100
+
+# Save components as PLY files
+cli-anything-cloudcompare --project myproject.json cloud segment-cc 0 \
+  -o /data/components/ --octree-level 6 --min-points 50 --fmt ply
+```
+
+Options: `-o/--output-dir TEXT` (required), `--octree-level INTEGER`, `--min-points INTEGER`, `--fmt TEXT`
+
+#### cloud merge
+Merge all clouds in the project into a single cloud.
+
+```bash
+cli-anything-cloudcompare --project myproject.json cloud merge \
+  -o /data/merged.las --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--add-to-project`
+
+#### cloud mesh-delaunay
+Build a 2.5-D Delaunay triangulation mesh from a cloud.
+
+```bash
+# Basic Delaunay mesh
+cli-anything-cloudcompare --project myproject.json cloud mesh-delaunay 0 \
+  -o /data/surface.obj
+
+# Best-fit plane with max edge length limit
+cli-anything-cloudcompare --project myproject.json cloud mesh-delaunay 0 \
+  -o /data/surface.ply --best-fit --max-edge-length 2.0 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `--best-fit`, `--max-edge-length FLOAT`, `--add-to-project`
+
+---
+
+### 4. mesh — Mesh Operations (3 commands)
+
+#### mesh add
+Add a mesh file to the project.
+
+```bash
+cli-anything-cloudcompare --project myproject.json mesh add /data/model.obj
+
+# Add with label
+cli-anything-cloudcompare --project myproject.json mesh add /data/model.ply -l "building model"
+```
+
+Options: `-l/--label TEXT`
+
+#### mesh list
+List all meshes in the project.
+
+```bash
+cli-anything-cloudcompare --project myproject.json mesh list
+
+# JSON output
+cli-anything-cloudcompare --project myproject.json --json mesh list
+```
+
+#### mesh sample
+Sample a point cloud from a mesh surface.
+
+```bash
+# Sample 50 000 points from mesh at index 0
+cli-anything-cloudcompare --project myproject.json mesh sample 0 \
+  -o /data/sampled.las -n 50000
+
+# Add sampled cloud back to project
+cli-anything-cloudcompare --project myproject.json mesh sample 0 \
+  -o /data/sampled.las -n 100000 --add-to-project
+```
+
+Options: `-o/--output TEXT` (required), `-n/--count INTEGER`, `--add-to-project`
+
+---
+
+### 5. distance — Distance Computation (2 commands)
+
+#### distance c2c
+Compute cloud-to-cloud distances. Adds a distance scalar field to the compared cloud.
+
+```bash
+# Compare cloud 1 to reference cloud 0
+cli-anything-cloudcompare --project myproject.json distance c2c \
+  --compare 1 --reference 0 -o /data/distances.las
+
+# Split into X/Y/Z components at octree level 8
+cli-anything-cloudcompare --project myproject.json distance c2c \
+  --compare 1 --reference 0 -o /data/distances.las \
+  --split-xyz --octree-level 8 --add-to-project
+```
+
+Options: `--compare TEXT` (required), `--reference TEXT` (required), `-o/--output TEXT` (required), `--split-xyz`, `--octree-level INTEGER`, `--add-to-project`
+
+#### distance c2m
+Compute cloud-to-mesh distances. Adds a distance scalar field to the cloud.
+
+```bash
+# Basic cloud-to-mesh distance
+cli-anything-cloudcompare --project myproject.json distance c2m \
+  --cloud 0 --mesh 0 -o /data/c2m_dist.las
+
+# With flipped normals and unsigned distances
+cli-anything-cloudcompare --project myproject.json distance c2m \
+  --cloud 0 --mesh 0 -o /data/c2m_dist.las \
+  --flip-normals --unsigned --add-to-project
+```
+
+Options: `--cloud INTEGER` (required), `--mesh INTEGER` (required), `-o/--output TEXT` (required), `--flip-normals`, `--unsigned`, `--add-to-project`
+
+---
+
+### 6. transform — Transformations and Registration (2 commands)
+
+#### transform apply
+Apply a 4×4 rigid-body transformation matrix to a cloud.
+
+```bash
+# Apply a transformation matrix from file
+cli-anything-cloudcompare --project myproject.json transform apply 0 \
+  -o /data/transformed.las -m /data/matrix.txt
+
+# Apply the inverse transformation
+cli-anything-cloudcompare --project myproject.json transform apply 0 \
+  -o /data/transformed.las -m /data/matrix.txt --inverse --add-to-project
+```
+
+The matrix file must contain 4 rows of 4 space-separated values:
+```
+1 0 0 0
+0 1 0 0
+0 0 1 0
+0 0 0 1
+```
+
+Options: `-o/--output TEXT` (required), `-m/--matrix TEXT` (required), `--inverse`, `--add-to-project`
+
+#### transform icp
+Run ICP (Iterative Closest Point) registration to align one cloud to another.
+
+```bash
+# Basic ICP alignment
+cli-anything-cloudcompare --project myproject.json transform icp \
+  --aligned 1 --reference 0 -o /data/aligned.las
+
+# ICP with overlap and iteration control
+cli-anything-cloudcompare --project myproject.json transform icp \
+  --aligned 1 --reference 0 -o /data/aligned.las \
+  --max-iter 50 --overlap 80 --min-error-diff 1e-6 --add-to-project
+```
+
+Options: `--aligned INTEGER` (required), `--reference INTEGER` (required), `-o/--output TEXT` (required), `--max-iter INTEGER`, `--min-error-diff FLOAT`, `--overlap FLOAT`, `--add-to-project`
+
+---
+
+### 7. export — Export Clouds and Meshes (4 commands)
+
+#### export formats
+List all available export format presets.
+
+```bash
+cli-anything-cloudcompare export formats
+
+# JSON output
+cli-anything-cloudcompare --json export formats
+```
+
+#### export cloud
+Export a cloud to a target format.
+
+```bash
+# Export cloud at index 0 as LAS
+cli-anything-cloudcompare --project myproject.json export cloud 0 /data/output.las
+
+# Export as PLY using preset
+cli-anything-cloudcompare --project myproject.json export cloud 0 /data/output.ply -f ply
+
+# Overwrite if file exists
+cli-anything-cloudcompare --project myproject.json export cloud 0 /data/output.las -f las --overwrite
+```
+
+Supported presets: `las`, `laz`, `ply`, `pcd`, `xyz`, `asc`, `csv`, `bin`, `e57`
+
+Options: `-f/--preset TEXT`, `--overwrite`
+
+#### export mesh
+Export a mesh to a target format.
+
+```bash
+# Export mesh at index 0 as OBJ
+cli-anything-cloudcompare --project myproject.json export mesh 0 /data/model.obj
+
+# Export as STL
+cli-anything-cloudcompare --project myproject.json export mesh 0 /data/model.stl -f stl --overwrite
+```
+
+Supported presets: `obj`, `stl`, `ply`, `bin`
+
+Options: `-f/--preset TEXT`, `--overwrite`
+
+#### export batch
+Batch export all project clouds to a directory.
+
+```bash
+# Export all clouds as LAS
+cli-anything-cloudcompare --project myproject.json export batch \
+  -d /data/exports/ -f las
+
+# Overwrite existing files
+cli-anything-cloudcompare --project myproject.json export batch \
+  -d /data/exports/ -f ply --overwrite
+```
+
+Options: `-d/--output-dir TEXT` (required), `-f/--preset TEXT`, `--overwrite`
+
+---
+
+### 8. info — Installation Info (1 command)
+
+Show CloudCompare installation path and version.
+
+```bash
+cli-anything-cloudcompare info
+
+# JSON output
+cli-anything-cloudcompare --json info
+```
+
+---
+
+### 9. repl — Interactive REPL (1 command)
+
+Start the interactive REPL session with history and undo support.
+
+```bash
+# Start REPL without a project
+cli-anything-cloudcompare repl
+
+# Start REPL with an existing project
+cli-anything-cloudcompare repl -p myproject.json
+
+# Equivalent: run without subcommand
+cli-anything-cloudcompare --project myproject.json
+```
+
+Options: `-p/--project TEXT`
+
+Inside the REPL, type `help` to list available commands or `session undo` to revert the last operation.
+
+---
+
+## Supported File Formats
+
+| Format | Extension | Read | Write | Notes |
+|---|---|---|---|---|
+| LAS | `.las` | ✓ | ✓ | LiDAR standard, supports intensity/RGB |
+| LAZ | `.laz` | ✓ | ✓ | Compressed LAS |
+| PLY | `.ply` | ✓ | ✓ | ASCII or binary |
+| PCD | `.pcd` | ✓ | ✓ | PCL format |
+| XYZ | `.xyz` | ✓ | ✓ | Plain text XYZ |
+| ASC | `.asc` | ✓ | ✓ | ASCII with header |
+| CSV | `.csv` | ✓ | ✓ | Comma-separated |
+| E57 | `.e57` | ✓ | ✓ | ASTM scanner exchange |
+| BIN | `.bin` | ✓ | ✓ | CloudCompare native binary |
+| OBJ | `.obj` | ✓ | ✓ | Mesh (Wavefront) |
+| STL | `.stl` | ✓ | ✓ | Mesh (3D printing) |
+
+---
+
+## Typical Workflows
+
+### Workflow 1: LiDAR Pre-processing Pipeline
+
+```bash
+P=myproject.json
+
+# 1. Create project and load scan
+cli-anything-cloudcompare project new -o $P
+cli-anything-cloudcompare --project $P cloud add /data/scan.las
+cli-anything-cloudcompare --project $P cloud list  # note index → 0
+
+# 2. Denoise
+cli-anything-cloudcompare --project $P cloud filter-sor 0 \
+  -o /data/denoised.las --nb-points 6 --std-ratio 1.0 --add-to-project
+
+# 3. Subsample to 5 cm grid
+cli-anything-cloudcompare --project $P cloud subsample 1 \
+  -o /data/subsampled.las -m spatial -n 0.05 --add-to-project
+
+# 4. Extract ground plane (CSF)
+cli-anything-cloudcompare --project $P cloud filter-csf 2 \
+  --ground /data/ground.las --offground /data/objects.las \
+  --scene relief --add-to-project
+
+# 5. Export result
+cli-anything-cloudcompare --project $P export cloud 3 /data/ground_final.las -f las --overwrite
+```
+
+### Workflow 2: Change Detection Between Two Scans
+
+```bash
+P=compare.json
+cli-anything-cloudcompare project new -o $P
+cli-anything-cloudcompare --project $P cloud add /data/scan_2023.las   # index 0
+cli-anything-cloudcompare --project $P cloud add /data/scan_2024.las   # index 1
+
+# ICP alignment (align 2024 to 2023)
+cli-anything-cloudcompare --project $P transform icp \
+  --aligned 1 --reference 0 -o /data/aligned_2024.las \
+  --overlap 90 --add-to-project   # index 2
+
+# Cloud-to-cloud distance
+cli-anything-cloudcompare --project $P distance c2c \
+  --compare 2 --reference 0 -o /data/change_map.las --add-to-project
+
+# Export as LAS with distance scalar field
+cli-anything-cloudcompare --project $P export cloud 3 /data/change_map_final.las --overwrite
+```
+
+### Workflow 3: Height Slice Extraction
+
+```bash
+P=slice.json
+cli-anything-cloudcompare project new -o $P
+cli-anything-cloudcompare --project $P cloud add /data/building.las
+
+# Extract points at 2–3 m height (floor level)
+cli-anything-cloudcompare --project $P cloud sf-filter-z 0 \
+  -o /data/floor_slice.las --min 2.0 --max 3.0 --add-to-project
+
+# Export
+cli-anything-cloudcompare --project $P export cloud 1 /data/floor_slice_out.las --overwrite
+```
+
+### Workflow 4: Surface Reconstruction
+
+```bash
+P=mesh.json
+cli-anything-cloudcompare project new -o $P
+cli-anything-cloudcompare --project $P cloud add /data/terrain.las
+
+# Compute normals
+cli-anything-cloudcompare --project $P cloud normals 0 \
+  -o /data/with_normals.ply --level 6 --orientation plus_z --add-to-project
+
+# Delaunay mesh
+cli-anything-cloudcompare --project $P cloud mesh-delaunay 1 \
+  -o /data/terrain_mesh.obj --max-edge-length 1.0 --add-to-project
+
+# Export mesh
+cli-anything-cloudcompare --project $P export mesh 0 /data/terrain_mesh_final.obj --overwrite
+```
+
+---
+
+## Error Handling
+
+| Exit Code | Meaning |
+|---|---|
+| `0` | Success |
+| `1` | General error (see stderr for details) |
+| `2` | Invalid arguments |
+
+Common errors:
+
+```bash
+# CloudCompare not found
+# → Install CloudCompare; check `cli-anything-cloudcompare info`
+
+# Index out of range
+# → Run `cloud list` or `mesh list` to confirm valid indices
+
+# File already exists (no --overwrite)
+# → Add --overwrite flag to export commands
+
+# fcntl not available (Windows)
+# → File locking is skipped automatically; project save still works
+```
+
+---
+
 ## For AI Agents
 
-When using this CLI programmatically:
-
 1. **Always use `--json` flag** for parseable output
-2. **Check return codes** - 0 for success, non-zero for errors
+2. **Check return codes** — 0 for success, non-zero for errors
 3. **Parse stderr** for error messages on failure
-4. **Use absolute paths** for all file operations
-5. **Verify outputs exist** after export operations
+4. **Use absolute paths** for all file arguments
+5. **Verify output files exist** after export operations
+6. **Chain with `--add-to-project`** to build multi-step pipelines without re-loading files
+7. **Use `cloud list --json`** to discover valid cloud indices before each operation
+8. **Use `export formats --json`** to discover available format presets
 
 ## Version
 
-1.0.0
\ No newline at end of file
+| Component | Version |
+|---|---|
+| cli-anything-cloudcompare | 1.0.0 |
+| CloudCompare (tested) | 2.13.2 |
+| Python (minimum) | 3.10 |