com.adrianczuczka/mason
mason
Engineering decisions, change impact, documentation audits, and CI evidence for coding assistants.
alive probed 2026-10-14
12tools
6.2ktokens in Claude Opus 5.5
6.3ktokens in Claude Code
3.1 %of a 200k context window
3.5ko200k_base estimate
405 msto initialize
9 msto list tools
- Run it
- npx -y mason-context@0.22.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mason 0.22.0
- Capabilities
- tools
- Instructions
- 1 306 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/adrianczuczka/mason
- Registry
- active, updated 2026-10-12 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| save_decision | 762 | 22 % |
| review_decision | 518 | 15 % |
| save_snapshot | 462 | 13 % |
| mason_init | 366 | 10 % |
| get_context | 262 | 7 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.adrianczuczka/mason)
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.