The follow-up track now includes Phase 6e: Tier 2 produces the authoritative
Phase 3 cost analysis as part of the follow-up work. Tier 2 is in
src/ai_client.py doing Phase 6b/6d anyway; they have full context to produce
the refined cost hypothesis that Tier 1's draft at PHASE3_HYPOTHETICAL_PROMOTION.md
could not (Tier 1 worked without the 6b/6d ground-truth context).
Tier 1's draft STAYS as the hypothesis doc. Tier 2's PHASE3_TIER2_ANALYSIS.md
is the refined version (per-sender cost summary + hidden call sites table
+ recommendations for the future Phase 3 track + cross-reference to Tier 1
explicit).
Phase 6e tasks (5 total, ~2 commits):
- t6e_1: Profile the 6 senders (codepath catalog + hidden cross-refs)
- t6e_2: Qualitative cost estimation per sender
- t6e_3: Identify hot iteration sites needing 'with h.lock:' pattern
- t6e_4: Author PHASE3_TIER2_ANALYSIS.md
- t6e_5: Phase 6e checkpoint commit + git note
Total estimated commits: 16 -> 18 (still within Tier 2 1-4 hour budget).
Files updated:
- conductor/tracks/phase2_4_5_call_site_completion_20260621/spec.md (+50 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/plan.md (+146 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/metadata.json (+13 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/state.toml (+9 lines)
- conductor/tracks.md (track 27 entry expanded with Phase 6e details)
Per FR8 in conductor/tracks/video_analysis_campaign_20260621/spec.md, mp4 files are too large for git and VTT auto-sub files are regenerable from transcript.json.
Note: existing tracked files in entropy_epiplexity (commit 5c5f347c) are still in history. The gitignore prevents FUTURE commits from adding them. To remove from history requires filter-repo/filter-branch rewrite (out of scope for this commit).
youtube-transcript-api v1.2.4 returns XML parse error on empty response for ALL videos in this campaign. yt-dlp's --write-auto-subs reliably returns 1000s of segments per video. Switched to yt-dlp as the primary path.
Tests updated to mock _fetch_via_ytdlp instead of _fetch_raw_transcript. 8/8 tests passing.
Each child spec is lightweight (~100 lines): references the umbrella, gives video details, specifies the 7 deliverables (transcript.json, frames/, ocr.md, report.md 1000-10000 LOC, summary.md), and the 5-phase pipeline.
Children in execution order:
1. cs229_building_llms (Stanford CS229, Cluster E)
2. probability_logic (Cluster A)
3. entropy_epiplexity (Cluster A)
4. score_dynamics_giorgini (Cluster A)
5. platonic_intelligence_kumar (Cluster B)
6. free_lunches_levin (Cluster B)
7. generic_systems_fields (Cluster C)
8. brain_counterintuitive (Cluster C)
9. neural_dynamics_miller (Cluster C)
10. multiscale_hoffman (Cluster C)
11. cs336_architectures (Stanford CS336, Cluster E)
12. creikey_dl_cv (Cluster D)
Plus 1 synthesis track (video_analysis_synthesis_20260621) blocked_by all 12 children.
Replaces the v1 plan (10 phases, single-stage cross-check) with an 11-phase
plan that executes the v2 spec's git-history classifier + 3-stage cross-check
+ 30% quality gate. Plan Phase 2 = Spec Phase 2 part 1; renumbering shifts
from Plan Phase 4 onwards (per the spec-vs-plan mapping in the summary table).
11 phases, 28 tasks, 4 hard pause points (Plan Phase 6 quality gate, Plan
Phase 7 Tier 1 review, Plan Phase 10 user sign-off, plus the Plan Phase 6
ABORT fallback to manual review). TDD red+green cycles for Phases 2-4 (8
new tests for _classify_status + 4 for extract_summary + 3 for format_markdown
+ 5 for the quality gate).
Test runner: scripts/run_tests_batched.py (per Tier 2 sandbox rule #1).
Throw-away scripts: scripts/tier2/artifacts/chronology_20260619/ (rule #4).
Default branch: master (rule #2). Line endings: preserve existing (rule #3).
The first run shipped chronology.md with a status classifier that read stale
metadata.json.status, marking 167/216 rows with wrong status. This v2 spec
replaces FR1 (5-value status enum + per-row evidence + confidence), FR5
(git-history classifier with the 5-step algorithm from the handover), FR6
(3-stage cross-check), and adds FR7 (classifier quality gate at 30% low
confidence threshold with abort-to-manual-review fallback).
Substantive changes from v1:
- 7 FRs (was 6); FR7 is new
- 14 VCs (was 12); VC10-VC14 are new
- 10 Risks (was 9)
- 5-value status enum: Active / In Progress / Completed / Abandoned / Special
(was 6-value: Shipped/Superseded/etc.)
- Per-row evidence line format documented with worked example
- 'Needs Review' section as a 5th section in chronology.md
- Quality gate hard-codes the user's 'A only if classifier is good, else B'
fallback design from chat 2026-06-21
Out of scope: 24 v1 commits + conductor/chronology.md.broken-v1 remain as the
foundation; this is a continuation, not a re-do. state.toml still shows
current_phase=10 from v1's false completion; the Tier 2 implementing agent
will reset it in Phase 1.4 of the plan.
ed