Add Changelog Entry

Runtime required. This skill uses Canopy tree notation; canopy-runtime must be active.

Detect canopy-runtime — present if either:

• canopy-runtime/SKILL.md exists under .claude/skills/, .github/skills/, or .agents/skills/, OR
• a canopy-runtime marker block exists in CLAUDE.md or .github/copilot-instructions.md.

If neither is present — install canopy-runtime first (see the compatibility field for the source and install options), then re-invoke this skill.

Do not interpret the ## Tree without canopy-runtime active.

Add changelog entry for version: $ARGUMENTS

Tree

add-changelog-entry
├── Validate $ARGUMENTS is a valid semver string
├── IF << not valid semver
│   └── END $ARGUMENTS is not a valid semver string
├── IF << CHANGELOG.md does not exist
│   └── create CHANGELOG.md from `assets/templates/changelog.md`
├── COLLECT_COMMITS >> commits
├── Read `assets/constants/levels.md` for valid change categories
├── CLASSIFY_COMMITS << commits >> {added, changed, fixed, removed}
├── SHOW_PLAN >> version | date | added | changed | fixed | removed
├── ASK << Proceed? | Yes | No
├── IF << Yes
│   ├── Read `assets/policies/changelog-rules.md` for entry formatting rules
│   ├── PREPEND_ENTRY << version
│   └── VERIFY_EXPECTED << assets/verify/verify-expected.md
└── ELSE
    └── Cancelled by user.

Rules

• Version must follow semver — validate strictly before proceeding

Response: version | entry_line_count | commit_count_processed