# Video Analysis Campaign — Synthesis Plan

**Track:** `video_analysis_synthesis_20260621`
**Type:** Research-only synthesis (Pass 1 of 3 multi-pass campaign)
**Status:** Active; phases 1-3 complete, phase 4 in progress

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## Phase 1: Verify all 12 children shipped

- [x] **T1.1** Verify all 12 children have report.md + summary.md
  - WHERE: `conductor/tracks/video_analysis_<slug>_20260621/`
  - HOW: Read each child's report.md + summary.md + state.toml
  - VERIFY: All 12 children have report.md (1000+ LOC), summary.md (200-400 words), state.toml with status="completed"
  - OUTCOME: All 12 verified shipped (commits documented in umbrella §6)

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## Phase 2: Direct Tier 2 synthesis (decision)

- [x] **T2.1** Decision: direct Tier 2 synthesis, no Tier 3 delegation
  - RATIONALE: Synthesis task requires cross-cluster integration across 12 child reports (~13000 LOC total); exceeds Tier 3 effective context window
  - COST-BENEFIT: Tier 2 direct is ~5-10x more token-efficient than Tier 3 delegation for cross-cluster integration tasks
  - ALT REJECTED: Tier 3 delegation with 12 child reports as inputs (stateless context amnesia prevents reliable cross-cluster synthesis)

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## Phase 3: Generate per_video_summary.md + report.md

- [x] **T3.1** Generate `per_video_summary.md`
  - WHERE: `conductor/tracks/video_analysis_synthesis_20260621/per_video_summary.md`
  - FORMAT: One paragraph (150-250 words) per video, in execution order
  - SOURCE: Lift from each child's `summary.md` with light editing
  - OUTCOME: 80 lines, 12 entries × ~200 words each

- [x] **T3.2** Generate `report.md` (6 sections per FR7 §3)
  - WHERE: `conductor/tracks/video_analysis_synthesis_20260621/report.md`
  - STRUCTURE: §1 Theme Matrix; §2 Cross-Video Concept Map; §3 5-10 High-Level Takeaways; §4 Mathematical Prerequisite Graph; §5 Open Research Questions; §6 Recommended Next-Watch List
  - EXPANSION: §7 Deep Dives (5 deep dives); §8 Implementation Recommendations; §9 Glossary; §10 Cross-Reference Index; §11 Verification Checklist; §12 Pass 2/3 Guidance; §13 Speaker Profiles; §14 Acknowledgements + Provenance
  - OUTCOME: 1031 lines, 88KB (above spec minimum of 1000 lines)

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## Phase 4: End-of-track verification + report

- [x] **T4.1** Verify all spec §6 checklist items
  - [x] All 12 children shipped
  - [x] per_video_summary.md has 12 entries (150-250 words each)
  - [x] report.md has all 6 sections populated
  - [x] report.md is 1000+ LOC (1031 lines)
  - [x] Every §3 takeaway references ≥1 video
  - [x] Every §1 theme cell references ≥1 video
  - [x] §6 next-watch list references ≥3 sources (10 videos, 7 authors, 7 topics)

- [ ] **T4.2** Write `TRACK_COMPLETION_video_analysis_synthesis_20260621.md`
  - WHERE: `docs/reports/TRACK_COMPLETION_video_analysis_synthesis_20260621.md`
  - FORMAT: Per precedent set by 12 child TRACK_COMPLETION reports
  - SECTIONS: Scope, Decisions, Outcomes, Files, Open Items, Pass 2/3 Guidance

- [ ] **T4.3** Commit synthesis track
  - SCOPE: state.toml + plan.md + per_video_summary.md + report.md + TRACK_COMPLETION report
  - MESSAGE: `conductor(synthesis): Phase 4 Verification - 1031-line synthesis + 12-entry per-video summary + end-of-track report`

- [ ] **T4.4** Update umbrella plan.md: mark synthesis as complete

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## Phase 5: Umbrella closeout (deferred)

- [ ] **T5.1** Overwrite interim umbrella report with final synthesis
- [ ] **T5.2** Update umbrella README.md
- [ ] **T5.3** Archive 14 video_analysis_* folders (12 children + 1 synthesis + umbrella)
- [ ] **T5.4** Update conductor/tracks.md chronology

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## Definition of Done

A task is complete when:
- [ ] Phase 1 (verify) complete
- [ ] Phase 2 (synthesis decision) complete
- [ ] Phase 3 (per_video_summary.md + report.md) complete
- [ ] Phase 4 (TRACK_COMPLETION + commit) complete
- [ ] All commits have git notes attached
- [ ] state.toml `status = "completed"`
- [ ] Plan.md all tasks marked `[x]`