Pre-Release Skill

Automates the pre-release preparation steps for Mini Diarium. Run this on the feature branch before tagging.

Stop immediately on any guard failure — do not continue to later steps.

Step 1 — CHANGELOG version check

Read CHANGELOG.md. Locate the first ## [X.Y.Z] heading under # Versions.

• Extract X.Y.Z as RELEASE_VERSION.
• The heading must match ## [X.Y.Z] - [Unreleased] (bracket-wrapped, not a date).
• If the heading already contains a date (e.g. ## [0.4.14] - 29-03-2026) → STOP and tell the user the CHANGELOG appears already stamped for this release.

Step 2 — Branch check