Individual skill
test-case-writer
Turn a requirement or user story into clear, executable test cases. Use when asked to write test cases, test scenarios, a test suite for a feature, or to derive tests from acceptance criteria. Produces structured test cases — preconditions, steps, test data, expected results — across happy path, edge cases, and negative cases, plus a coverage note, so a tester (or automation) can run them without guessing.
plugins/pm-qa/skills/test-case-writer/SKILL.md
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- Nov 9, 2026
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# Test Case Writer Skill
Good test cases are unambiguous and complete: anyone can run them and get the same result, and together they
cover the ways the feature can succeed *and* fail. This skill derives test cases from a requirement or user
story — happy path first, then the edge and negative cases that find real bugs — each written so it's directly
executable.
## Working from a brief
Given a user story or a one-line feature description, **write the test cases anyway** — infer the acceptance
criteria, boundaries, and likely failure modes, labelling assumptions. Always include edge and negative cases,
not just the happy path. Never hand back questions instead of cases.
## Required Inputs