timelinelisted

Respond in the user's preferred language (detect from their recent messages, or fall back to the language setting in CLAUDE.md). Group the current branch's commit history into semantic phases along a timeline, and generate two review documents: architecture evolution + code review. Arguments: $ARGUMENTS - No arguments: diff against main...HEAD - `--base <branch>`: specify a custom base branch for comparison ## Core Concept Unlike `/qq:brief` (produces architecture diff + PR checklist), this command groups commits by **timeline phases**, helping reviewers build a mental model in development order while preserving priority annotations. ## Execution Steps ### 1. Collect Commit History ```bash git log <base>..HEAD --oneline --reverse --format="%h %ai %s" ``` ### 2. Group Commits into Semantic Phases Grouping criteria (in order of priority): 1. **Semantic affinity**: consecutive commits on the same feature/subsystem go in the same group 2. **Natural breakpoints**: merge commits, date gaps > 1 day, module switches 3. **Phase markers in commit messages**: if a commit self-annotates with a Phase, respect that first Each Phase requires: - A semantic name (e.g. "Player Health System", not "Phase 1") - Date range - List of commits (hash + one-line description) - One-sentence summary Target: 5–10 Phases (too few loses timeline value; too many becomes per-commit annotation) ### 3. Analyze Changes per Phase For each Phase: ```bash git diff <phase_first_commit>~1..<phase_last_c