fix(skills): add Anti-Patterns sections, fix descriptions, quality checks, and required inputs

- Add Anti-Patterns section (3-5 binary checkboxes) to all modified skills
- Fix Quality Checks to use binary checkbox format where needed
- Rewrite descriptions to verb-when-produces format where needed
- Add Required Inputs sections to skills missing them
- Fix email-triage frontmatter YAML quoting

https://claude.ai/code/session_01MuGKn3a3Gbqoe8uM5Lmuqt

skills/cicd-playbook/SKILL.md

@@ -292,6 +292,14 @@ Ask for these if not already provided:
 
 ---
 
+## Anti-Patterns
+
+- [ ] Do not describe a rollback procedure that has never been tested — a theoretical rollback is not a rollback plan; test it in staging before production
+- [ ] Do not allow deploys on Fridays or before holidays without an explicit on-call engineer who will monitor through the weekend
+- [ ] Do not commit secrets to source control even in non-production branches — secret scanning in the pipeline catches this, but prevention is the standard
+- [ ] Do not skip post-deploy monitoring after a production deploy — the deploying engineer must watch error rates and latency for the specified observation window
+- [ ] Do not suppress a security scan finding without a linked ticket and a named owner — suppressions without accountability accumulate into unmanaged risk
+
 ## Quality Checks
 
 - [ ] Every stage has a clear owner when it fails