docs(11-04): complete documentation and examples plan

Tasks completed: 2/2
- Add parallel-aware splitting strategy to scope-estimation.md
- Add parallel vs sequential examples to phase-prompt.md

SUMMARY: .planning/phases/11-parallel-aware-planning/11-04-SUMMARY.md

Phase 11: Parallel-Aware Planning complete
Milestone 100% complete (23/23 plans)

.planning/ROADMAP.md

@@ -18,7 +18,7 @@ None - this is internal GSD development following existing command/workflow/temp
 - [ ] **Phase 2: Map Codebase Command** - Build /gsd:map-codebase with parallel Explore agents
 - [ ] **Phase 3: Integration** - Wire brownfield support into existing GSD workflows
 - [x] **Phase 10: Parallel Phase Execution** - Separate single-plan vs multi-plan execution with intelligent parallelization
-- [ ] **Phase 11: Parallel-Aware Planning** - Update plan-phase.md to create parallelizable plans when config enables it
+- [x] **Phase 11: Parallel-Aware Planning** - Update plan-phase.md to create parallelizable plans when config enables it
 
 ## Phase Details
 
@@ -179,7 +179,7 @@ Plans:
 - [x] 11-01: Update phase-prompt template - Add parallelization frontmatter fields (parallelizable, depends_on, files_exclusive)
 - [x] 11-02: Add parallel-aware step to plan-phase workflow - Read config, restructure for vertical slices, document independence
 - [x] 11-03: Update execute-phase to use plan frontmatter - Use explicit markers instead of inference, backward compat
-- [ ] 11-04: Documentation and examples - Update references, add parallel vs sequential planning examples
+- [x] 11-04: Documentation and examples - Update references, add parallel vs sequential planning examples
 
 **Details:**
 Current plan-phase.md has sequential execution bias - later plans reference earlier SUMMARY.md, file overlap is acceptable, no independence markers. When parallelization enabled in config.json, planning should:
@@ -207,4 +207,4 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6
 | 8. Improve Roadmap System | 1/1 | Complete | 2026-01-05 |
 | 9. Integrate Verify-Work | 1/1 | Complete | 2026-01-08 |
 | 10. Parallel Phase Execution | 4/4 | Complete | 2026-01-12 |
-| 11. Parallel-Aware Planning | 3/4 | In Progress | - |
+| 11. Parallel-Aware Planning | 4/4 | Complete | 2026-01-12 |

.planning/STATE.md

@@ -20,18 +20,18 @@
 ## Current Position
 
 Phase: 11 of 11 (Parallel-Aware Planning)
-Plan: 3 of 4 in current phase
-Status: In progress
-Last activity: 2026-01-12 - Completed 11-03-PLAN.md
+Plan: 4 of 4 in current phase
+Status: Phase complete
+Last activity: 2026-01-12 - Completed 11-04-PLAN.md
 
-Progress: █████████████░ 96% (22 of 23 plans)
+Progress: ██████████████ 100% (23 of 23 plans)
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 22
+- Total plans completed: 23
 - Average duration: 3.7 min
-- Total execution time: 82 min
+- Total execution time: 85 min
 
 **By Phase:**
 
@@ -47,10 +47,10 @@ Progress: █████████████░ 96% (22 of 23 plans)
 | 8 | 1 | 1 min | 1 min |
 | 9 | 1 | 3 min | 3 min |
 | 10 | 4 | 33 min | 8.3 min |
-| 11 | 3 | 9 min | 3 min |
+| 11 | 4 | 12 min | 3 min |
 
 **Recent Trend:**
-- Last 5 plans: 10-04 (3m), 11-01 (4m), 11-02 (2m), 11-03 (3m)
+- Last 5 plans: 11-01 (4m), 11-02 (2m), 11-03 (3m), 11-04 (3m)
 - Trend: Workflow updates fast (avg 3m)
 
 *Updated after each plan completion*
@@ -105,5 +105,5 @@ Drift notes: None
 ## Session Continuity
 
 Last session: 2026-01-12
-Stopped at: Completed 11-03-PLAN.md
+Stopped at: Completed 11-04-PLAN.md - Phase 11 complete, milestone complete
 Resume file: None

.planning/phases/11-parallel-aware-planning/11-04-SUMMARY.md

@@ -0,0 +1,98 @@
+---
+phase: 11-parallel-aware-planning
+plan: 04
+subsystem: documentation
+tags: [parallel-execution, planning, vertical-slices, file-ownership]
+
+# Dependency graph
+requires:
+  - phase: 11-01
+    provides: parallelization frontmatter fields in plan template
+  - phase: 11-02
+    provides: parallel-aware step in plan-phase workflow
+  - phase: 11-03
+    provides: execute-phase reads plan frontmatter
+provides:
+  - Parallel-aware splitting strategy in scope-estimation.md
+  - Vertical slice vs sequential planning examples
+  - File ownership and SUMMARY reference guidance
+affects: [plan-phase, scope-estimation, phase-prompt]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [vertical-slice-planning, explicit-file-ownership, minimal-summary-references]
+
+key-files:
+  created: []
+  modified:
+    - get-shit-done/references/scope-estimation.md
+    - get-shit-done/templates/phase-prompt.md
+
+key-decisions:
+  - "Vertical slices maximize Wave 1 plans vs workflow-stage grouping"
+  - "File ownership explicit in frontmatter prevents merge conflicts"
+  - "SUMMARY references only when prior plan decisions affect current approach"
+
+patterns-established:
+  - "Parallel-aware planning groups by vertical slice, not workflow stage"
+  - "files_exclusive in frontmatter declares file ownership"
+  - "Minimal SUMMARY references - only for genuine data dependencies"
+
+issues-created: []
+
+# Metrics
+duration: 3min
+completed: 2026-01-12
+---
+
+# Phase 11 Plan 04: Documentation Summary
+
+**Parallel-aware splitting strategy and examples documenting vertical slice planning vs sequential workflow stages**
+
+## Performance
+
+- **Duration:** 3 min
+- **Started:** 2026-01-12T19:45:00Z
+- **Completed:** 2026-01-12T19:48:00Z
+- **Tasks:** 2
+- **Files modified:** 2
+
+## Accomplishments
+
+- Added `<parallel_aware_splitting>` section to scope-estimation.md with philosophy shift table, vertical slice examples, file ownership guidance, and SUMMARY reference minimization
+- Added parallel and sequential plan examples to phase-prompt.md with frontmatter patterns and key differences
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add parallel-aware splitting strategy** - `a1f6e9f` (feat)
+2. **Task 2: Add parallel vs sequential examples** - `67afce6` (feat)
+
+## Files Created/Modified
+
+- `get-shit-done/references/scope-estimation.md` - Added parallel_aware_splitting section with philosophy shift, vertical slice examples, when to restructure, file ownership, SUMMARY references
+- `get-shit-done/templates/phase-prompt.md` - Added parallel-aware and sequential plan examples with frontmatter patterns
+
+## Decisions Made
+
+None - followed plan as specified
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None
+
+## Next Phase Readiness
+
+- Phase 11: Parallel-Aware Planning complete
+- All 4 plans finished (template, workflow, execute-phase, documentation)
+- Milestone complete - ready for `/gsd:complete-milestone`
+
+---
+*Phase: 11-parallel-aware-planning*
+*Completed: 2026-01-12*