mcpcost

io.github.Gentleelephant/project-brain

Project Brain

Is the Project Brain MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-01.

Read-only source search and retrieval across configured GitHub repositories

alive probed 2026-11-14 · unchanged since 2026-11-01

6tools
1.3ktokens in Claude Opus 5.5
0.6 %of Claude's 200k window
0.5×the median server
554 msto initialize
6 msto list tools
Run it
docker run -i --rm ghcr.io/gentleelephant/project-brain:v2.0.3 (stdio, probed in a container with the network off)
Host
ghcr.io
Reports itself as
project-brain v2.0.3
Capabilities
tools
Instructions
775 characters
Of a 1M window
0.1 % of a 1M context window
Count
1.3k tokens in Claude Opus 5.5, exact, measured 2026-11-01. With the Claude Code prefix mcp__…__ on each tool name: 1.3k. The o200k_base estimate is 726. Counted again when the tool definitions change. Method.
Repository
https://github.com/Gentleelephant/project-brain
Registry
active, updated 2026-08-08 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.78×.

Tool≈ Claude tokenso200k estimateShare of this server
project_code_search32918525 %
project_code_files28015722 %
project_code_read25114119 %
project_symbol_search21912317 %
project_repo_sync1327410 %

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Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

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