ai.aquex/reasonbook
Reasonbook
Is the Reasonbook MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-06.
Reasonbook: decisions that survive the session, in a local record AI agents keep.
alive probed 2026-11-15 · unchanged since 2026-11-06
- Run it
- npx -y @aquex/reasonbook@4.12.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- rbook 4.12.0
- Capabilities
- experimental, prompts, tools
- Instructions
- 1 186 characters
- Of a 1M window
- 1.2 % of a 1M context window
- Count
- 12k tokens in Claude Opus 5.5, exact, measured 2026-11-02. With the Claude Code prefix mcp__…__ on each tool name: 12k. The o200k_base estimate is 7.0k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/kneelinghorse/reasonbook
- Registry
- active, updated 2026-11-05 · registry entry
- Changes
- 6 recorded, reachable in 6 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.76×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| rbook_context | 1 647 | 937 | 13 % |
| rbook_project | 1 510 | 859 | 12 % |
| rbook_decisions | 1 234 | 702 | 10 % |
| rbook_mission | 1 192 | 678 | 10 % |
| rbook_session | 1 160 | 660 | 9 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- AgentUtility Synthforge ai.agentutility/mcp-synthforge · crashed on start
- AgentUtility Web Probe ai.agentutility/mcp-web-probe · crashed on start
- AgentUtility Wordmint ai.agentutility/mcp-wordmint · crashed on start
- Anki MCP Server ai.ankimcp/anki-mcp-server · timeout
- ai.aquex/stage1 · needs args
- Auten ai.auten/mcp · alive
- ai.autoblocks/contextlayer-mcp · no executable
- ai.autoblocks/ctxl · no executable
Servers that mention decisions or session.
- ai.cdbx/mcp-server · needs auth
- Decision Log ai.decisionlog/mcp · alive
- FairMind Project Context ai.fairmind/project-context · needs auth
- ai.getvda/encrypted-langchain-session-agent · newer protocol
- Hypnothera ai.hypnothera/hypnothera · needs auth
- Jurisprudências.ai ai.jurisprudencias/case-law · needs auth
- Khwan ai.khwan/khwan-mcp · TLS error
- Melt Peer Review ai.meltstudio/peer-review · needs auth
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-11-02 08:17 | alive | 528 ms | 15 | 12k | 7.0k |
| 2026-10-31 07:31 | alive | 486 ms | 15 | 12k | 6.8k |
| 2026-10-30 07:44 | alive | 411 ms | 15 | 9.5k | 5.1k |
| 2026-10-29 07:41 | alive | 478 ms | 15 | 9.5k | 5.1k |
| 2026-10-26 06:58 | alive | 901 ms | 15 | 9.3k | 5.0k |
| 2026-10-16 06:23 | alive | 685 ms | 15 | 8.9k | 4.8k |
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.