Hmrc Fraud Prevention Header Lint

Local stdio MCP server that lints HMRC Gov-Client and Gov-Vendor fraud prevention headers offline, flagging mistakes HMRC rejects.

What you can do

• Check Gov-Client and Gov-Vendor fraud prevention headers for errors HMRC would reject.
• Run the lint offline, without sending header data to a remote service.
• Surface header problems inside the editor before submission.
• No individual tools are listed in the manifest, so exact operations are not documented.

When to use it

Useful when building or testing an HMRC Making Tax Digital integration and you want to catch fraud prevention header mistakes early, in the editor, rather than after an HMRC rejection.

Requirements

Runs as a local process over stdio, launched with npx from the npm package @readystack/hmrc-fraud-prevention-header-lint, so Node.js and npx are needed. Desktop only; no authentication, environment variables or headers are declared.