Testing Skill Coverage Strategy Refresh

Goal

Update .agents/rules/testing.mdc so it pushes future coverage work toward value-first, file-first, multi-pass regression confidence instead of package sweeps or vanity coverage.

Inputs

• .agents/rules/testing.mdc
• docs/plans/2026-03-06-test-suite-cleanup-plan.md
• docs/plans/2026-03-09-test-suite-excellence-plan.md

Status

• Read source docs
• Rewrite testing guidance
• Sync generated skill files

Verification

• pnpm prepare
• verified generated pointers in .agents/rules/testing/SKILL.md
• verified generated pointers in .agents/rules/testing-review/SKILL.md