one.faf/claude-faf-mcp
Claude FAF
Persistent project context for Claude. IANA-registered .faf format.
alive probed 2026-10-15
14tools
4.7ktokens in Claude Opus 5.5
4.9ktokens in Claude Code
2.4 %of a 200k context window
2.9ko200k_base estimate
610 msto initialize
13 msto list tools
- Run it
- npx -y claude-faf-mcp@7.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- claude-faf-mcp 7.0.1
- Capabilities
- prompts, resources, 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/Wolfe-Jam/claude-faf-mcp
- Website
- https://faf.one
- Registry
- active, updated 2026-10-01 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| faf_bench | 362 | 13 % |
| faf_go | 300 | 10 % |
| faf_sync | 288 | 10 % |
| faf_init | 261 | 9 % |
| faf_etch | 258 | 9 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/one.faf/claude-faf-mcp)
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.