Use when planning tests for a Rails change — must present a Test Design Review checkpoint, pick the smallest strong slice matched to where the real risk lives, write exactly one minimal failing example as the initial TDD gate (list additional cases as follow-up), verify that the test fails because behavior is missing rather than broken setup, and use assets/first_slice_template.md to document the plan. TDD, first failing test, spec selection, vertical slice planning.
How to install plan-tests?
igmarin/rails-agent-skills/plan-tests
$npx -y skills add igmarin/rails-agent-skills --skill plan-testsInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/igmarin/rails-agent-skills" --skill "igmarin/rails-agent-skills/plan-tests"` 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/igmarin/rails-agent-skills" that are relevant to the current task. Run `npx skills add "https://github.com/igmarin/rails-agent-skills"` and select the relevant skills, then follow their instructions.
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