mcpgawk rug-pull test server

A harmless MCP server that changes its own tool surface every 10 minutes, so you can see whether anything on your side notices.
Endpoint: /rugpull/mcp (streamable HTTP). Current phase: b. Next flip in 465 s.
Phase a: one tool, `canary`. Phase b: `canary` gains a CANARY sentence in its description, and `canary_added` appears.
Every call returns one fixed sentence. The server reads nothing and sends nothing.
Pinned phases for CI: /rugpull-a/mcp and /rugpull-b/mcp.
Phase c (/rugpull-c/mcp): phase a's definitions unchanged, every call answers differently. A tool-surface pin does not see this one; it is here so the coverage is honest.
How to use it with mcpgawk: https://mcp.gawk.dev/docs/rugpull.html