io.github.jarmstrong158/context-keeper
context-keeper
Durable project-memory MCP: decisions, constraints, and pipelines across Claude sessions.
alive probed 2026-10-15
14tools
4.3ktokens in Claude Opus 5.5
4.4ktokens in Claude Code
2.1 %of a 200k context window
2.4ko200k_base estimate
487 msto initialize
3 msto list tools
- Run it
- uvx context-keeper-mcp==0.19.0 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- context-keeper 0.19.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/jarmstrong158/context-keeper
- Registry
- active, updated 2026-08-06 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| record_entry | 673 | 28 % |
| query_entries | 459 | 19 % |
| get_context | 271 | 11 % |
| deprecate_entry | 168 | 7 % |
| update_entry | 116 | 5 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.jarmstrong158/context-keeper)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.