io.github.GuardBee/rug-pull-detector
guardbee-rug-pull-detector
Baselines an MCP server's tools and detects tool-definition changes after approval
alive probed 2026-10-14
3tools
970tokens in Claude Opus 5.5
1.0ktokens in Claude Code
0.5 %of a 200k context window
554o200k_base estimate
315 msto initialize
7 msto list tools
- Run it
- npx -y @guardbee/mcp-rug-pull-detector@0.2.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- guardbee-rug-pull-detector 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/GuardBee/guardbee-mcp
- Registry
- active, updated 2026-10-13 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| check_server | 276 | 50 % |
| baseline_server | 232 | 42 % |
| list_baselines | 46 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.GuardBee/rug-pull-detector)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.