io.github.JOJO-Adam/stemem

Stemem Identity Runtime

Is the Stemem Identity Runtime MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Local-first agent persona runtime (MCP): cross-session personality that survives compaction.

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

9tools

1.2ktokens in Claude Opus 5.5

0.6 %of Claude's 200k window

0.5×the median server

38 msto initialize

2 msto list tools

Run it: npx -y stemem@0.1.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: stemem 0.1.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.1 % of a 1M context window
Count: 1.2k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.3k. The o200k_base estimate is 717. Counted again when the tool definitions change. Method.
Repository: https://github.com/JOJO-Adam/Stemem
Website: https://github.com/JOJO-Adam/Stemem
Registry: active, updated 2026-09-30 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.71×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
event	295	173	24 %
intervene	178	104	15 %
init	145	85	12 %
satisfy	126	74	10 %
generate_soul	113	66	9 %

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

Servers that mention identity or runtime.

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.