io.github.SuperAgentic/spines

spines

Is the io.github.SuperAgentic/spines MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Access book collections, reading lists, and bookshelf recognition from AI assistants.

alive probed 2026-11-14 · unchanged since 2026-10-31

11tools

1.9ktokens in Claude Opus 5.5

1.0 %of Claude's 200k window

0.8×the median server

244 msto initialize

12 msto list tools

Run it: npx -y @spines/mcp-server@1.1.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: spines 1.1.0
Capabilities: prompts, resources, tools
Instructions: none
Of a 1M window: 0.2 % of a 1M context window
Count: 1.9k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 2.0k. The o200k_base estimate is 1.1k. Counted again when the tool definitions change. Method.
Repository: https://github.com/GetSpines/mcp-server
Registry: active, updated 2026-10-14 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.76×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
recognize_bookshelf	506	287	26 %
list_collections	219	124	11 %
add_to_reading_list	192	109	10 %
get_book_pairings	192	109	10 %
search_books	176	100	9 %

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

Servers that mention collections or recognition.

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.