+ All agents ▾
+ All types ▾
+ phase_4 ▾
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+ 09:14
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session resumed·zo-mnist-20260712-091412·phase_4 training_iteration·STATE.md loaded
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+ 09:15
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+ gate
+ phase_3→phase_4
+ model design review
+ pass
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+ reviewed3-block CNN spec · exp-001/002 design runs · param budget 1.2M✓
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+ 09:16
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+ decision
+ Branch exp-003 from exp-002: keep the wider conv, add rotation aug ±12°
+ lead-orchestrator
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+ exp-002 stalled at 0.9841; its error grid is rotation-shaped — 7/1 and 4/9 confusions — not capacity-shaped.
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+ exp-002's wider conv (32→64) already closed the underfit gap; the residual errors cluster where digits rotate into each other. Rotation aug ±12° attacks exactly that failure mode at zero parameter cost, leaving the 1.2M budget untouched. 8 epochs on mps; metrics stream to .zo/experiments/exp-003/metrics.jsonl.
alternativesdeeper 4-block stack (rejected: param budget) · lr warmup sweep (deferred to exp-004) · elastic distortions (rejected: cpu-bound on mps)
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+ 09:17
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+ error
+ blocking
+ model-builder
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+ MPS fallback: pin_memory unsupported — retried on cpu loader
+ resolved 09:17 · retried with pin_memory=false · prior appended to PRIORS.md
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+ 09:18
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+ model-builder→lead-orchestratorroutine
+ exp-003 launched (parent exp-002): wider conv + rotation aug, 8 epochs on mps. Status in
+ training_status.json.
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+ 09:24
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+ code-reviewer→model-builderroutine
+ augment.py review clean — two nits fixed inline (rotation-bounds constant, transform seeding). No blocking findings.
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+ 09:26
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phase_4·training_iteration·exp-003 epoch 3/8·val_acc 0.9803
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+ 09:38
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phase_4·training_iteration·exp-003 epoch 5/8·val_acc 0.9883·new best, checkpointed
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+ 09:41
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+ training-mnist-cnn-checker→lead-orchestratorhigh
+ best val_acc 0.9883 at epoch 5; epoch 6 reads 0.9871 — plateau watch on. Recommend holding the gate until epoch 8 confirms.
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+ 09:42
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phase_4·training_iteration·exp-003 epoch 6/8·train_loss 0.0341·val_acc 0.9871
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+ 09:42
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+ decision
+ Hold exp-004 until the oracle re-runs the held-out set
+ lead-orchestrator
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+ exp-003's epoch-5 best is going to the oracle for the gate packet; branching now would race the evaluation.
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+ 09:43
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+ gate
+ phase_4→phase_5
+ evaluating…
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+ test_accuracy0.9912≥ 0.95✓tier: could_pass
+ must_pass ≥ 0.95 ✓should_pass ≥ 0.98 ✓could_pass ≥ 0.99 ✓
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+