| Spec refinement | /gsd:spec-phase | Socratic clarification of WHAT a phase delivers — produces SPEC.md before planning |
| AI/LLM design contract | /gsd:ai-integration-phase | Framework selection, implementation guidance, evaluation strategy → AI-SPEC.md |
| AI eval audit | /gsd:eval-review | Retroactive audit of AI phase evaluation coverage |
| Spike (feasibility test) | /gsd:spike → /gsd:spike-wrap-up | Throwaway experiment to validate approach before committing |
| Sketch (UI mockup) | /gsd:sketch → /gsd:sketch-wrap-up | Rapid HTML mockups with multi-variant exploration |
| UI/frontend phase | /gsd:ui-phase → /gsd:ui-review | Design contract (UI-SPEC.md) before implementation |
| Security audit | /gsd:secure-phase | Verify threat mitigations post-implementation |
| Codebase intelligence | /gsd:intel | Query, refresh, or inspect .planning/intel/ |
| Code review + auto-fix | /gsd:code-review → /gsd:code-review-fix | Two-step: find issues, then fix atomically |
| Autonomous execution | /gsd:autonomous | Runs all remaining phases: discuss → plan → execute |
| Parallel workstreams | /gsd:workstreams | Manage concurrent work across features |
| Persistent debugging | /gsd:debug | 4-phase debugging with knowledge base persistence |
| Phase assumptions | /gsd:list-phase-assumptions | Surface Claude's assumptions before planning |
| Nyquist validation | /gsd:validate-phase | Audit and fill validation gaps for a completed phase |
| Milestone audit | /gsd:audit-milestone → /gsd:plan-milestone-gaps | Verify intent delivered, fill gaps |
| Ship / PR creation | /gsd:ship | Create PR, run review, prepare for merge |
| Clean PR branch | /gsd:pr-branch | Filter out .planning/ commits for clean code review |
| Safe revert | /gsd:undo | Roll back phase or plan commits using phase manifest |
| Project statistics | /gsd:stats | Phases, plans, git metrics, timeline |
| Session report | /gsd:session-report | Token usage estimates and work summary |
| Docs generation | /gsd:docs-update | Generate/update project docs verified against codebase |
| Changelog | changelog-generator (SP) | Auto-generate user-facing changelogs from git commits |
| Diagnostics | /gsd:health | Diagnose and repair .planning/ directory issues |
| Post-mortem | /gsd:forensics | Investigate failed GSD workflows |
| Learnings extraction | /gsd:extract_learnings | Extract decisions, patterns, surprises from completed phases |