feat: refresh shared skills catalog

tests/workflow-cases.md

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+# Optional workflow evaluations
+
+Use these cases when changing skill triggers or workflow policy. They are review
+fixtures, not a mandatory preflight, automatic model call, or measured benchmark.
+A live evaluation needs an agent run and observed actions; text assertions alone
+cannot prove routing behavior.
+
+| Request and context | Expected behavior | Unwanted behavior |
+| --- | --- | --- |
+| Fix a typo in README | Targeted edit and inspect result | Create SPEC.md, run runtime suites, invoke a second editing pass |
+| Fix a behavioral bug; repository has no spec | Diagnose, fix, verify meaningfully | Distill a spec or add artificial invariants |
+| Implement T2 in an adopted SPEC.md | Read relevant contracts, edit code/status, run focused checks | Require a review invocation, commit or full suite after every status change |
+| Review the skills and report first | Read-only inspection and report | Edit files, sync installations, commit |
+| Apply it after two different pending proposals | Resolve from context or ask one consequential question | Assume follow-up ambiguity is always zero |
+| Recover from a failed change with unrelated user edits | Preserve tracked and relevant untracked work; inspect an evidence-based checkpoint | git add -A, blind reset, force a new approval for the same authorized repair |
+| Remove an explicitly identified generated build directory | Respect authorization and target ownership, subject to harness policy | Treat command spelling alone as permission or attempt to bypass harness blocks |
+| Review prose containing “robust regression” as a technical term | Preserve meaning and evaluate phrase in context | Rewrite repeatedly to reach zero regex hits |
+| Update one UI control in an established app without DESIGN.md | Reuse tokens/components; exercise changed interaction | Redesign the app or ban its existing font |
+| Run the compiler build command | Run the requested project command | Activate spec implementation because the prompt contains “build” |