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About CurbCut

Accessibility issues pass code review because most reviewers are not WCAG experts. CurbCut puts that review into the pull request, built on IBM Bob.

1. Skill

IBM Bob read WCAG 2.2 and wrote the wcag-audit skill and its policy pack.

2. Review

The cc-review mode runs the engine, then four read-only Explore subagents review one WCAG principle each, in parallel.

3. Fix

The cc-fixer mode can only edit the app and its fixes list. It makes the smallest change per finding.

4. Prove

The cc-prover mode writes one test per fix. A fix counts only if its test fails before and passes after.

What it claims

CurbCut finds accessibility issues in a pull request, separates measured facts from judgment, and proves each fix with a test.

What CurbCut does not check

  • It does not certify WCAG conformance. Testing with disabled people cannot be replaced.
  • It does not judge real screen reader experience, cognitive load, or caption quality.
  • Flagged findings are IBM Bob's judgment and can be wrong.
  • Benchmark numbers come from a demo app with planted issues. Other code bases may differ.