Add a sig-based reach oracle + --min-reach N to lora_grind so the mass-run can prefer
SHARED functions (one bank propagates x reach — the fleet-% multiplier). The oracle reads
the same .run/sig.ov_*.jsonl dedup_propagate uses (validated: 0 mismatch over 60 stubs +
the func_8017CE24=2 ground truth), so a reach>=N target is exactly one dedup_propagate
will stamp x reach after the bank.
Bounded reach>=2 mass-run (ov_SC01_000, 15 shared <=15-ins stubs): 0/15 banked, vs the
reach-1-heavy spot-run's 7/15. The model is weakest exactly on reach>=2 (shared) code:
(1) the corpus skipped the shared DEFINE_func macro bodies (export_pairs reads only src/
defs -> 96.6% of the corpus is overlay-unique), and (2) the shared engine fns are the
harder regalloc/schedule residuals. So reach>=2 model-only is NOT a fleet lever by itself.
BUT the reach>=2 drafts are high-value FUEL: 5/15 are close<=3 reach-134 near-misses
(3x close=1: func_8012E27C/BF4C/AD64) -> x134 each if closed. The real lever is
reach>=2 draft -> permuter-grinder close (x134), which needs the SAME per-binary fix T7
applied to lora_grind: grinder.py calls run_gate with no binary (-> 077) and the backlog
stores no binary field. That two-part fix is the next step. byte-neutral: check-all 136/136.
- docs/gen2-mips-matching-model.md: T9 RESULT
- phase-ends/CURRENT_PHASE.md: T9 done; next = grinder per-binary fix, then corpus-v3
The 500-fn calibration banked 0/222 across the binary rotation. Root-caused (R14, by
reading the code + the run's own backlog — resolving a flat contradiction between two
scout agents) to TWO independent bugs in lora_grind's use of gate_stage.run_gate, NOT
model quality:
- Bug A: good_sha() passed the sha1sum line "<sha> <name>" vs harvest_verify's bare
sha1() -> 0 banks for EVERY binary incl. 077 (so the "0/12" was a bug artifact, not
an exhausted tail)
- Bug B: the gate call left src/asm/out at the hardcoded ov_SC01_077 defaults -> non-077
drafts dropped at the 077 stub-filter, silently (and the asm mis-resolution contaminated
the backlog near-miss classification)
Fix (tools/gate_stage.py): run_gate resolves src/asm/out/good_sha from `binary` when unset
(binary-agnostic, no silent ov_SC01_077 default an overlay inherits; good_sha bare-hash
normalized) + a loud negative-control guard (0-overlap binary/src mismatch warns, so a 0
can never again masquerade as 'nothing matched'). tools/lora_grind.good_sha fixed at source.
Byte-neutral: make check-all 136/136.
Proof: ov_SC01_000 spot-run banked 7/15 (47%) byte-identical (@commit:0322); reach-2
func_8017CE24 propagated x2. ROI finding: 6/7 banks are reach-1 (overlay-unique) -> broad
rotation is high bank-RATE / low fleet-% ROI; the fleet lever is reach>=2 targeting (T9) +
corpus-v3 (T8). Backlog now correctly classified (4x close=1 = grinder fuel).
- docs/gen2-mips-matching-model.md: T7 RESULT section
- phase-ends/CURRENT_PHASE.md: T7 done; next = T8 corpus-v3 / T9 reach>=2 selection
Rotates over every binary with open small stubs, drafts with the fine-tuned model (api_draft LEAN, GPU
via LM Studio), banks via gate_stage, propagates fleet-wide periodically. Near-misses -> backlog ->
grinder.py permuter closes regalloc/schedule residuals (synergy). Writes a classified near-miss
histogram (the 'missing idioms' signal -> corpus-v3 priorities). STOP/heartbeat/stats like grinder.py.
Smoke OK; histogram shows struct(49)+schedule/regalloc(94) dominate the backlog.
Drew T