Phase 3.3 finalises the SP17 dueling-Q diagnostic chain. Canonical
HEALTH_DIAG line (already emitted by Phase 3.2 commit b6b17d46b) matches
the plan's exact format spec at line 1064-1066:
HEALTH_DIAG[N]: dueling [v_share=(d=X m=Y o=Z u=W)]
[a_var=(d=A m=B o=C u=D)] [clip=K]
Reader parsing table added to audit doc, Phase 4 smoke gate criteria
documented:
- a_var > 0.01 per branch throughout (regression detector)
- v_share ∈ [0.3, 0.7] per branch (balanced dueling)
- clip ∈ [0.5, 5.0] (magnitude scale healthy)
Memory pearl `pearl_sp4_histogram_warp_tile_undercount` filed
(MEMORY.md updated separately as it's a user-private file outside the
worktree). Documents the SP17 Phase 3.2 test-data trap discovered
during the advantage_clip_bound oracle test: `sp4_histogram_p99`'s
documented "1/(256×32) loss for typical signals" qualifies on signal
distribution; lockstep-uniform synthetic patterns violate the
assumption. Fix is per-element jitter in test data — NOT atomicAdd
(which would violate `feedback_no_atomicadd`). Real |A_centered| in
production is continuous, so the issue is test-only.
Phase 3 commit chain (atomic per `feedback_no_partial_refactor`):
- 1e70cd5e5 Phase 3.1: A_var_ema + 1 GPU oracle test
- b6b17d46b Phase 3.2: V_share + advantage_clip_bound + 2 GPU oracles
- this commit: closeout audit doc
13/13 SP17 GPU oracle tests pass on RTX 3050 Ti in 2.4s.
Phase 3 is observability-only — NO consumer path is modified. The clip
bound is producer-tracked but NOT yet wired as an actual clip on any
kernel; that's Phase 5 follow-up.
Plan: docs/superpowers/plans/2026-05-08-sp17-dueling-q-network.md
Phase 3.3.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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