Enhance release management with robust validation using the schema system we just built. Creates a perfect showcase: validate CHANGELOG.md with a changelog schema.

Critical Issues Found

setuptools-scm bug: Missing tag_regex → markitect --version returns "unknown"
Missing v0.9.0 tag: CHANGELOG says v0.9.0 released but git tag never created
No validation: No checks for CHANGELOG format or version-tag consistency

Solution

Create changelog-schema-v1.0.md to validate Keep a Changelog format, integrate into release workflow. Demonstrates schema evolution in action!

Staged Approach

Stage 1 (45 min): Critical fixes → unblock v0.10.0 release
Stage 2 (2.5 hrs): CHANGELOG schema → showcase feature
Stage 3 (2 hrs): Release tooling enhancements
Stage 4 (optional): Schema extensions (hooks/agents)

Recommended: Standard Track (Stages 1-3) = 5 hours for production-ready release management

Files

WORKPLAN.md - Detailed staged implementation plan
DONE.md - Completion checklist (when finished)

Philosophy

"Use the tools we build to improve the tools we build."

Release v0.10.0 becomes: The release that validates itself 🎯