The Agent Skills Directory

[COMMAND_EXECUTION]: The skill executes Python modeling scripts and the cadgen utility to generate geometry, perform exports, and run validation checks.
[EXTERNAL_DOWNLOADS]: Fetches the cadgen tool (version 0.7.20) from the PyPI registry using the uvx package manager. This is a standard dependency for the skill's vendor-specific functionality.
[INDIRECT_PROMPT_INJECTION]: The skill has a potential attack surface through the processing of external CAD documents and user-provided sketches.
Ingestion points: Files are ingested through read_scene and read_step functions in references/inspection-and-validation.md; visual references like PNG sketches are used for modeling interpretation.
Boundary markers: The instructions in references/cad-brief.md direct the agent to record meaningful assumptions and clarify missing information rather than blindly following embedded data.
Capability inventory: The skill can write and execute Python code, manage files in project directories, and launch a local web server for model viewing via cadgen viewer.
Sanitization: Parsing of 3D geometry is performed using the OpenCascade (OCP) kernel via the build123d framework, which naturally validates structural integrity during the modeling process.

cad