Characterization testing and safety-net backfill for existing code. Use when legacy, under-tested, or risky code needs tests before a refactor, bug fix, or behavior change. Captures current behavior through public interfaces, identifies coverage gaps, and adds focused unit, integration, or E2E tests without replacing TDD implementation workflows.
How to install testing?
howells/arc/testing
$npx -y skills add howells/arc --skill testingInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/howells/arc" --skill "howells/arc/testing"` 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/howells/arc" that are relevant to the current task. Run `npx skills add "https://github.com/howells/arc"` and select the relevant skills, then follow their instructions.
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