io.github.systasys/skeptopus
SkeptOpus
Is the SkeptOpus MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-15.
Your AI says it's done. SkeptOpus goes and looks: commits, pushes, tests, files, deploys.
alive probed 2026-11-15
3tools
630tokens in Claude Opus 5.5
0.3 %of Claude's 200k window
0.3×the median server
142 msto initialize
4 msto list tools
- Run it
- npx -y skeptopus@0.2.4 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- skeptopus 0.2.4
- Capabilities
- tools
- Instructions
- 576 characters
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 630 tokens in Claude Opus 5.5, exact, measured 2026-11-15. With the Claude Code prefix mcp__…__ on each tool name: 660. The o200k_base estimate is 381. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/systasys/skeptopus
- Website
- https://github.com/systasys/skeptopus#readme
- Registry
- active, updated 2026-11-14 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.65×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| check | 370 | 224 | 59 % |
| what_can_you_check | 177 | 107 | 28 % |
| today | 83 | 50 | 13 % |
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.