godot-mcp-server
MCP server for Godot game engine integration
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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tomyud1
Source: npm · also listed on Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
ws: Memory exhaustion DoS from tiny fragments and data chunks
ws: Uninitialized memory disclosure
esbuild enables any website to send any requests to the development server and read the response
Vitest: Path Traversal / Arbitrary File Read via @vitest/mocker Redirect Mock
GODOT_MCP_HTTP_PORTGODOT_MCP_IDLE_TIMEOUT_MSGODOT_MCP_PORTGODOT_MCP_TIMEOUT_MSTool 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
77/77 tools missing one or more hints — get_godot_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_guide (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); generate_2d_asset (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +74 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 6/77 tools referenced in tests (8%)
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/index.ts:307, src/index.ts:318, src/visualizer-server.ts:174)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.25.2 (high), ws@8.19.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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