Implements PR changelog generator that analyzes diffs and generates
Keep a Changelog format entries ready for CHANGELOG.md.
Features:
- Generates structured changelog entries (Added/Changed/Fixed/etc.)
- Automatically detects breaking changes
- Includes technical details (files, LOC, components)
- User-focused language filtering out noise
- Ready to copy-paste into CHANGELOG.md
Implementation:
- Added changelog.md prompt template with Keep a Changelog format
- Implemented _handle_changelog_command() in PRAgent
- Added _format_changelog() for markdown formatting
- Updated PRAgent.can_handle() to route changelog commands
- Added 'changelog' to config.yml commands list
Workflow Safety (prevents duplicate runs):
- Added '@codebot changelog' to ai-comment-reply.yml conditions
- Excluded from ai-chat.yml to prevent duplication
- Only triggers on PR comments (not issues)
- Manual command only (no automatic triggering)
Testing:
- 9 comprehensive tests in TestChangelogGeneration class
- Tests command detection, formatting, config validation
- Verifies prompt formatting and Keep a Changelog structure
Documentation:
- Updated README.md with changelog command and examples
- Added detailed implementation guide in CLAUDE.md
- Included example output and use cases
Related: Milestone 2 feature - PR changelog generation for release notes
Critical fix for workflow routing that was causing 3x duplication on every
@codebot mention. All three workflows (ai-chat, ai-comment-reply, ai-issue-triage)
were triggering simultaneously.
Changes:
- ai-issue-triage.yml: Only runs on '@codebot triage' (unchanged, already specific)
- ai-comment-reply.yml: Only runs on specific commands (help, explain, suggest, etc)
- ai-chat.yml: Only runs on free-form questions (excludes all specific commands)
Workflow routing logic:
1. '@codebot triage' → ai-issue-triage.yml ONLY
2. '@codebot <command>' → ai-comment-reply.yml ONLY
3. '@codebot <question>' → ai-chat.yml ONLY (fallback)
This prevents the massive duplication issue where every @codebot mention
triggered all three workflows simultaneously, causing 10+ redundant runs.
Updated documentation in CLAUDE.md with workflow routing architecture.
