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Skillssolidcraft-agent-tools

solidcraft-agent-tools

Agents & models

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Updated 11-03 16:16

About this skill

Running the app, the control channel and MCP tools

Run it and look at it

  • cargo run --release -p solidcraft -- --sample --control PORT starts the sample design with the control channel. Pick a free port. With no display, run it under Xvfb :99 with DISPLAY=:99.
  • Talk JSON lines to 127.0.0.1:PORT (docs/control-protocol.md). The first request on a connection carries the launch token as "token": read it from ~/.local/share/solidcraft/control/PORT.token, or start the app with SOLIDCRAFT_CONTROL_TOKEN=$(openssl rand -hex 32) and send that. Never paste the token into a PR or issue.
    • {"id":1,"method":"engine.execute","params":{"command":"solid.extrude","params":{"distance":20}}}
    • {"id":2,"method":"ui.start","params":{"command":"sketch.create"}}, then ui.click {x, y}
    • {"id":3,"method":"ui.screenshot","params":{"path":"/tmp/shot.png"}}, then read the PNG
  • For UI work, look at the result. Without a window use ui.render or solidcraft-cli snapshot.
  • Headless: solidcraft-cli run script.json --out part.step, solidcraft-cli eval design.sc, solidcraft-cli snapshot script.json --out shot.png, solidcraft-cli commands.
  • Build with CARGO_TARGET_DIR=<repo>/target.

MCP tools

The server is solidcraft-cli mcp (crates/mcp/src/, docs/mcp.md). Tools are defined in crates/mcp/src/tools.rs; keep docs/mcp.md in step, and keep tool annotations (read-only, destructive) honest.

  • Anything the user can do is a command; add a command, not a new tool, unless the tool is about the session itself (open, save, screenshot, batch).
  • Files: tools reach only the allowed folders (the design's folder, the recovery folder, the scratch folder, --allow-path). Do not widen this casually; paths are resolved before comparing, so .. and links leaving the allowed set are refused, and on Windows UNC and device paths are refused.
  • Replies stay small: verbose: false, no unfiltered command catalogue or topology dumps.
  • The control channel is a local-only interface with a token. A new method needs an entry in docs/control-protocol.md; long work follows skills/solidcraft-performance/SKILL.md.

Bundled agent skills

The modelling skills (skills/solidcraft-modeling, -editing, -checking, -mechanisms) are built into the MCP server for its skill_reference tool (crates/mcp/src/skill_reference.rs). The contributor skills are not.

  • When a command, parameter name or behaviour those skills describe changes, update them in the same PR. skills_name_only_real_tools_and_commands in crates/mcp/src/tests.rs fails when a skill names a tool or command that is gone.
  • Adding a bundled file means adding it to skill_reference.rs and to that test.
  • skills/README.md explains the layout and the other tests; cargo xtask skills checks that AGENTS.md and every SKILL.md cite real paths, commands and skills.