Discovery and poisoning checks
The scanner reads MCP configs from six clients. Env values never leave the machine. Tool descriptions are checked for hidden directives, instruction overrides, credential requests, exfiltration, tool shadowing and invisible characters. Approving a server pins its tools, and a later change sends it back to review.
- Claude Desktop
- Claude Code
- Cursor
- VS Code
- Windsurf
- Gemini CLI
weatherTools changed3 flags from the poisoning checkReviewnotes-helperTool shadowing flaggedReview