io.github.Renwang-Huang/arbitype
Arbitype
Is the Arbitype MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Typed decision tools for AI agents, powered by TypeSafe Jev.
alive probed 2026-11-15 · unchanged since 2026-10-31
9tools
3.5ktokens in Claude Opus 5.5
1.7 %of Claude's 200k window
1.4×the median server
664 msto initialize
6 msto list tools
- Run it
- uvx arbitype@0.7.0 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- arbitype 0.7.0
- Capabilities
- tools
- Instructions
- 495 characters
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 3.5k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 3.6k. The o200k_base estimate is 1.8k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/Renwang-Huang/arbitype
- Website
- https://github.com/Renwang-Huang/arbitype
- Registry
- active, updated 2026-09-22 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.92×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| evaluate | 865 | 450 | 25 % |
| review | 400 | 208 | 11 % |
| verify | 396 | 206 | 11 % |
| gate | 371 | 193 | 11 % |
| check | 346 | 180 | 10 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
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- io.github.RecallWorks/recall · crashed on start
- io.github.ReGenNow/regennexus-mcp · crashed on start
- ProxmoxMCP-Plus io.github.RekklesNA/proxmox-mcp-plus · needs env
- TypeSafe MCP io.github.Renwang-Huang/typesafe-mcp · alive
- PageMap io.github.Retio-ai/pagemap · crashed on start
- MCP Memory Graph io.github.RetroRobAI/mcp-memory-graph · needs mcp<2
- Vintage io.github.RezaSoleymanifar/vintage · alive
Servers that mention decision or typesafe.
- ai.aqta/seal · alive
- Psychiatry for Children ai.childpsychiatry/library · alive
- Decision Log ai.decisionlog/mcp · alive
- ai.edge-agents/intelligence · alive
- FairMind Project Context ai.fairmind/project-context · needs auth
- Jurisprudências.ai ai.jurisprudencias/case-law · needs auth
- Squad ai.meetsquad/squad · needs auth
- Melt Peer Review ai.meltstudio/peer-review · needs auth
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.