KiCAD MCP Server
Enables AI assistants to interact with KiCAD for PCB design automation. Users can design PCBs using natural language, including component placement, routing, checks, and export.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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kankrittapon
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
KICAD_PYTHON2. env var - User override for non-standard installationsKICAD_SCRIPT_PATHPARTREEL_API_BASEPARTS_REGISTRY_ASSET_HOSTSPYTHONPATHresolving the correct macOSANTHROPIC_API_KEYKICAD_MCP_LOG_LEVELLog verbosity (error/warn/info/debug, or off). KICAD_MCP_LOG_LEVEL wins.LOG_LEVELLog verbosity (error/warn/info/debug, or off). KICAD_MCP_LOG_LEVEL wins.KICAD_AUTO_LAUNCHKICAD_BACKENDKICAD_MCP_DEVSet =1 in your Claude Desktop MCP environment to automatically saveJLCPCB_APP_IDJLCPCB_API_KEYJLCPCB_API_SECRETKICAD10_FOOTPRINT_DIRKICAD9_FOOTPRINT_DIRKICAD8_FOOTPRINT_DIRKICAD_SKIP_SYMBOL_WARMUPKICAD10_SYMBOL_DIRKICAD9_SYMBOL_DIRKICAD8_SYMBOL_DIRKICAD10_3RD_PARTYKICAD9_3RD_PARTYKICAD8_3RD_PARTYKICAD_3RD_PARTYKICAD_IPC_CONNECT_TIMEOUTKICAD_INTERACTIVE_SCHEMATICOpt-in =1 auto-confirms KiCad's reload dialogXDG_CONFIG_HOMEXDG_CACHE_HOMEXDG_DATA_HOMETool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
223/223 tools missing one or more hints — set_board_size (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); set_board_origin (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_board_origin (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +220 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
204/221 tool handlers declare input schemas (92%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool test coverage
173/223 tools referenced in tests (78%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
3 calls in production code run through a shell (src/server.ts:198, src/server.ts:375, src/server.ts:430)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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