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docs(wave3-parallel-dispatch): record S1b cadence + promote block class - #19664

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docs(wave3-parallel-dispatch): record S1b cadence + promote block class#19664
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w3-6-runbook-s1b-cadence-update

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@drussell23 drussell23 commented Apr 25, 2026

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Summary

Per operator binding 2026-04-25 (Option B closure of F1 Slice 4 cadence):

"lock in S1b as the cadence record. The F1+F2 plumbing is definitively
proven end-to-end. The microkernel successfully intercepted, classified,
and routed the complex payload to the STANDARD multi-file route without
human intervention. The subsequent all_providers_exhausted failure is an
infrastructure-layer anthropic_transport waiver, not a cognitive or
routing failure within O+V. ... The internal architecture is
mathematically sound."

Documentation-only PR. No code changes.

What this records

S1b session `bt-2026-04-25-054256` (MERGE_HEAD `b068c8a083`) was the
first ever live battle-test in the entire W3(6)+F1+F2 arc to fire all
three integrations simultaneously
:

  • F1 PROVEN: 8 `[IntakePriority] primary dequeue` markers (critical-
    urgency seed dequeued first in 0.10s waited), 0 `priority_inversion`,
    0 traceback frames in extended blocklist
  • F2 PROVEN: 3 `envelope_routing_override` markers, seed routed
    STANDARD via priority-0.5 clause (was IMMEDIATE in S1a without F2)
  • Hard-bar clean: `session_outcome=complete`, `stop=idle_timeout`,
    1510s duration, $0.16 cost
  • Reachability still blocked: seed exhausted at GENERATE via
    `all_providers_exhausted:fallback_failed` (DW primary failed → Claude
    fallback `CancelledError` after 72.8s sem_wait × 3 retries)

Block class promotion

Before (W3(6) S1+S2+S3, 2026-04-23/24) After (F1 Slice 4 S1b, 2026-04-25)
`live_reachability=blocked_by_intake_starvation` `live_reachability=blocked_by_provider_exhaustion`
Structural intake failure (BG flood starves seed) Structural intake FIXED; downstream provider transport (`anthropic_transport` infra waiver) is the new gate

What's NOT in this PR (per operator binding)

  • ❌ Modifying the seed to a smaller workload to dodge the provider timeout
    (Option C — explicitly REJECTED — would mask the issue)
  • ❌ Inflating timeout boundaries via env (Option D — explicitly REJECTED —
    same masking concern)
  • ❌ S2 / S3 of F1 Slice 4 cadence — operator chose Option B (close
    cadence at 1/3, lock in S1b as the record)
  • ❌ F1 Slice 4 default flip — not eligible (needs ≥1 live session with
    successful multi-file generation reaching post-GENERATE seam)
  • ❌ W3(6) Slice 5b default flip — same blocker

Unblock paths (operator-deferred)

  • Provider transport reliability fix (DW endpoint stability OR Claude
    fallback timeout/retry-budget tuning) — outside W3(6)+F1+F2 scope
  • Organic accumulation: under steady-state operation, any sensor producing
    a multi-file generation will exercise the now-graduated-shape F1+F2
    path and the post-GENERATE seam will fire

Evidence record

Full evidence in
`memory/project_wave3_item6_graduation_matrix.md` §"F1 Slice 4 cadence
S1b — `live_reachability=blocked_by_provider_exhaustion`" (memory file,
not in repo).

🤖 Generated with Claude Code


Summary by cubic

Update the Wave 3 parallel dispatch runbook to record the S1b cadence and promote the live-reachability block from intake starvation to provider exhaustion, confirming F1+F2 plumbing end-to-end on production traffic. Documentation-only; no code changes.

  • Runbook updates
    • Record S1b session bt-2026-04-25-054256 as the cadence record.
    • Mark F1+F2 live-proven (8 intake-priority dequeues, 3 routing overrides; seed routed STANDARD).
    • Promote block: blocked_by_intake_starvationblocked_by_provider_exhaustion (anthropic_transport infra waiver).
    • Note cadence state: 1/3 sessions recorded; paused; default flips remain blocked.
    • Clarify unblock paths: fix provider transport or wait for organic multi-file runs; do not shrink workload or inflate timeouts.

Written for commit 8301ade. Summary will update on new commits.

Per operator binding 2026-04-25 (Option B closure of F1 Slice 4 cadence):
"lock in S1b as the cadence record. The F1+F2 plumbing is definitively
proven end-to-end. ... The internal architecture is mathematically sound."

S1b session bt-2026-04-25-054256 (MERGE_HEAD b068c8a) was the first
ever live battle-test in the entire W3(6)+F1+F2 arc to fire all three
integrations simultaneously:

- F1: 8 [IntakePriority] primary dequeue markers, 0 priority_inversion
- F2: 3 envelope_routing_override markers
- Seed routed STANDARD via priority-0.5 clause (was IMMEDIATE in S1a
  without F2)
- Extended blocklist clean (0 traceback frames in parallel_dispatch.py
  / worktree_manager.py / phase_runners/ / phase_dispatcher.py)
- session_outcome=complete, stop=idle_timeout, 1510s, $0.16

Block class promoted from `intake_priority_inversion` (W3(6) S1+S2+S3,
2026-04-23/24) → `provider_exhaustion` (S1b, 2026-04-25). Structural
intake failure mode FIXED; downstream provider transport
(anthropic_transport infra waiver) is the new gate.

Cadence PAUSED at 1/3 sessions — Slice 5b default flip remains blocked,
F1 Slice 4 default flip remains blocked. Operator-rejected unblock paths:
modifying the seed (Option C) or inflating timeout boundaries (Option D)
— both would mask the issue, not fix it.

This commit updates the runbook only; no code changes. Full evidence
record in memory/project_wave3_item6_graduation_matrix.md §"F1 Slice 4
cadence S1b — live_reachability=blocked_by_provider_exhaustion".

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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📊 PR Size Analysis

Size: S
Files Changed: 1
Lines Added: +40
Lines Deleted: -22
Total Changes: 62

Review Checklist

  • All tests passing
  • Code follows project style guidelines
  • Documentation updated if needed
  • No sensitive data exposed
  • Breaking changes documented

@github-actions github-actions Bot added documentation Improvements or additions to documentation size/small labels Apr 25, 2026
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🤖 CI/CD Pipeline Results

Status: success
Branch: 19664/merge
Commit: df4f1fe8ae3291ecc1aeb7a5fe2590af1a757165

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