io.github.JayOfemi/byakugan
ai-checker
Private, on-device AI-text analysis including detection, AI-tell spans, and reuse overlap.
alive probed 2026-10-15
4tools
907tokens in Claude Opus 5.5
943tokens in Claude Code
0.5 %of a 200k context window
544o200k_base estimate
504 msto initialize
36 msto list tools
- Run it
- npx -y @jayofemi/ai-checker@1.0.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- ai-checker 1.0.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/JayOfemi/byakugan
- Registry
- active, updated 2026-06-29 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| check_reuse | 149 | 27 % |
| detect_ai_text | 144 | 26 % |
| find_ai_tells | 130 | 24 % |
| check_grammar | 121 | 22 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.JayOfemi/byakugan)
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.