Individual skill

regression-test-plan

Design and prioritize a regression test suite so changes don't break what worked. Use when asked to plan regression testing, build a regression suite, decide what to re-test after a change, or trim a bloated regression pack. Produces a risk-based regression plan — what to re-test and why, prioritised tiers (smoke → full), automation candidates, and a run strategy per release — so coverage matches risk and the suite stays fast.

plugins/pm-qa/skills/regression-test-plan/SKILL.md

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# Regression Test Plan Skill

Regression testing protects what already works — but re-running everything every time is slow and wasteful, and
testing too little ships breakage. The answer is **risk-based**: re-test what changed, what it touches, and what
hurts most if it breaks. This skill builds that prioritised plan and a run strategy, so coverage tracks risk and
the suite doesn't balloon.

## Working from a brief

Given "we're shipping a checkout change, what should we regression-test?", **produce the plan anyway** — infer
the impacted areas and a sensible prioritisation, labelling assumptions. Tie scope to change-impact and risk.
Never hand back a question instead of a plan.

## Required Inputs