io.github.jmshinhwa/hmrc-fraud-prevention-header-lint
@readystack/hmrc-fraud-prevention-header-lint
Finds the Gov-Client and Gov-Vendor header mistakes HMRC rejects, in your editor, offline, before yo
alive probed 2026-10-15
3tools
413tokens in Claude Opus 5.5
479tokens in Claude Code
0.2 %of a 200k context window
226o200k_base estimate
98 msto initialize
4 msto list tools
- Run it
- npx -y @readystack/hmrc-fraud-prevention-header-lint@0.1.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- @readystack/hmrc-fraud-prevention-header-lint 1.0.0
- 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/jmshinhwa/readystack-themes
- Registry
- active, updated 2026-09-19 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| check_dir | 88 | 39 % |
| check_text | 79 | 35 % |
| check_file | 59 | 26 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.jmshinhwa/hmrc-fraud-prevention-header-lint)
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.