Phase 3 integration skill. Use when verifying frontend/backend contract consistency — compares API paths, request shapes, and response types across the frontend calls, backend implementations, and PRD API contract. Deep mode uses OpenAPI auto-verification; standard mode uses static code analysis.
$npx -y skills add luckyonetwothree/harness-all --skill contract-verifyInstalls into the current project.
Run `npx skills use "https://github.com/luckyonetwothree/harness-all" --skill "luckyonetwothree/harness-all/contract-verify"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/luckyonetwothree/harness-all" that are relevant to the current task. Run `npx skills add "https://github.com/luckyonetwothree/harness-all"` and select the relevant skills, then follow their instructions.