io.github.forever-healthy/fh-library

FH Library

Is the FH Library MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-10.

Local Markdown library of the papers an evidence review cites: metadata, abstract and full text

alive probed 2026-11-14 · unchanged since 2026-11-10

12tools

5.1ktokens in Claude Opus 5.5

2.6 %of Claude's 200k window

2.0×the median server

882 msto initialize

11 msto list tools

Run it: npx -y fh-library@0.2.21 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: fh-library 0.2.21
Capabilities: tools
Instructions: 9 041 characters
Of a 1M window: 0.5 % of a 1M context window
Count: 5.1k tokens in Claude Opus 5.5, exact, measured 2026-11-09. With the Claude Code prefix mcp__…__ on each tool name: 5.2k. The o200k_base estimate is 3.2k. Counted again when the tool definitions change. Method.
Repository: https://github.com/forever-healthy/fh-library
Website: https://github.com/forever-healthy/fh-library
Registry: deprecated, updated 2026-11-09 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.58×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
library_read	713	451	14 %
library_verify	665	421	13 %
library_clinicaltrials_search_studies	602	381	12 %
library_fetch	509	322	10 %
library_pubmed_search_articles	501	317	10 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention library.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

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