gc_mcp (fosferon/gc_mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 64 tools. No publisher has claimed this listing.
Exposes Grand Central daemon capabilities as MCP tools, wrapping gc_daemon via configurable transports (stdio or HTTP) with strict parameter validation and read-only GitHub tools for issue and repository access.
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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fosferon
Source: Glama
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Install from
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GC_DAEMON_URL(default http://localhost:4242) the tools will load and thenGC_MCP_HOSTBind host, streamable-http only.GC_MCP_PATHHTTP path, streamable-http only.GC_MCP_PORTBind port, streamable-http only.GC_MCP_TRANSPORTstdio, streamable-http, or all.GH_DEFAULT_REPOowner/repo used by the read-only gh_ tools when repo is omitted.GH_TOKENGitHub token for the gh_ tools. Falls back to ~/.config/gh-token.Tool 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
64/64 tools missing one or more hints — gc_recall (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); gc_retain (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); gc_reflect (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +61 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 test coverage
Only 6/64 tools referenced in tests (9%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
2 calls in production code run through a shell (src/index.ts:4377, src/index.ts:4407)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
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