forked from 1b-agent/opencadstudio-upstream
28 lines
1.7 KiB
Markdown
28 lines
1.7 KiB
Markdown
# OpenCADStudio MCP control
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Every native OpenCADStudio build contains the same MCP server as the editor. `OpenCADStudio --mcp` starts it over stdio, opens the desktop editor when needed, and exposes the live document without Python, a package manager, a sidecar service, or client-specific code.
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MCP lets an AI client inspect the open drawing, execute editor commands, and verify the result through a shared protocol. Install OpenCADStudio, then add a local MCP server in the client and set its command to:
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```sh
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OpenCADStudio --mcp
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```
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The client must start that command over standard input/output. If it asks for the executable and arguments separately, select the installed `OpenCADStudio` executable and enter `--mcp` as its only argument. The exact registration screen or configuration location belongs to the client. Once connected, the four tools below should appear in the client's MCP tool list.
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The server provides four tools:
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- `ocs_sessions` finds running editor sessions and opens OpenCADStudio when none exists.
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- `ocs_read` reads document state, commands, entities, layers, properties, measurements, history, events, and operation status.
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- `ocs_execute` performs semantic commands and input against the real editor.
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- `ocs_capture` returns a PNG of the current window for visual verification.
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Mutations carry a session ID, document ID, expected revision, selection, and idempotent request ID. Commands report `waiting_input` while more input is required and asynchronous work remains `running` until its real callback finishes. Geometry stays in OpenCADStudio and its geometry kernel.
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The source-tree protocol smoke test uses only the Python standard library:
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```sh
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cargo build
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python3 docs/automation/mcp_smoke.py target/debug/OpenCADStudio
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```
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