mirror of
https://github.com/Druthulu/BFM-decomp
synced 2026-09-29 07:10:32 -04:00
Drew T
8f171c6ce6
Both rules were already written down (§384, §397) and both were violated anyway, which is the argument for a tool: a habit you must remember at the moment you are impatient is not a control. tools/verify_binary.py — ALWAYS re-extracts before building, because a carve rewrites splat inputs and a build over stale extract state produces a meaningless SHA. S69 read three binaries as red on build-only checks; all three were BYTE-IDENTICAL after extract+build, and two false reds cost legitimate work that had to be restored (a 96-line match, and 23 declaration edits). --all-touched sweeps everything with uncommitted src/ or config/ changes. tools/twin_rescan.py — the twin oracle answers "is there a BANKED body like this?", so an OPEN-OPEN cluster correctly reports "no banked twin" for every member and that verdict is stale the instant one banks. Diffs the scan against the previous snapshot so it reports what JUST became free, not the whole board, with the ready-to-run family_remap command per row. Baseline: 318 open stubs, 37 already carry a banked twin at d<=5. Memories added: rescan-twins-after-every-bank, check-against-a-known-true-case.
84 lines
4.0 KiB
Python
84 lines
4.0 KiB
Python
#!/usr/bin/env python3
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"""tools/twin_rescan.py — after a bank, report what just became a REMAP instead of a draft. (P31 S69)
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WHY (§397, measured at ~250k wasted tokens in one session). The twin oracle answers *"is there a
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BANKED body like this?"*. An OPEN-OPEN cluster therefore reports **"no banked twin" for every member,
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correctly** — none of them is banked. The instant you bank ONE, that answer is stale for all the
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others, and nothing in the pipeline notices.
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S69 paid for the lesson: a reach-6 cluster's exemplar cost 203k tokens to crack, then FOUR siblings
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were drafted at ~60k each. They were exact clones — the agents' own diffs read *"label-stripped .s
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diff vs the twin is EMPTY"* and *"an EXACT clone (asm diff = labels only)"*. `family_remap` + the
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§378 chain banks those for ~0. One sibling had already burned **257k tokens plateauing at
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permuter-class NEAR** before the remap closed it in seconds.
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WHAT IT DOES. Runs the twin scan and DIFFS it against the previous snapshot, so the output is not
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"here is the whole board" but **"here is what changed since the last bank"** — the only part anyone
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acts on. Rows that gained a banked twin are printed with the ready-to-run remap command.
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tools/twin_rescan.py # rescan, diff vs the last snapshot, print what is now free
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tools/twin_rescan.py --snapshot-only # take a baseline without reporting (first run)
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Run it AFTER EVERY GATE THAT BANKED. It is the cheap half of the loop: crack one exemplar, bank it,
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rescan, remap everything that just lit up, and draft only what is left.
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"""
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import argparse
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import json
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import os
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import subprocess
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import sys
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REPO = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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SNAP = os.path.join(REPO, ".run/twin_rescan.snapshot.json")
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VENV = os.path.join(REPO, ".venv/bin/python")
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def scan(max_d):
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out = os.path.join(REPO, ".run/twin_rescan.latest.json")
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r = subprocess.run([VENV, "tools/seed_ref.py", "--near", "--max-d", str(max_d), "--json", out],
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cwd=REPO, capture_output=True, text=True)
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if r.returncode or not os.path.exists(out):
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sys.exit("[twin_rescan] seed_ref --near failed: %s" % (r.stderr or r.stdout)[-300:])
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return {(x["binary"], x["fn"]): x for x in json.load(open(out))["rows"]}
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def main():
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ap = argparse.ArgumentParser(description=__doc__,
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formatter_class=argparse.RawDescriptionHelpFormatter)
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ap.add_argument("--max-d", type=int, default=5)
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ap.add_argument("--snapshot-only", action="store_true")
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a = ap.parse_args()
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cur = scan(a.max_d)
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prev = {}
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if os.path.exists(SNAP):
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prev = {(k.split("|")[0], k.split("|")[1]): v for k, v in json.load(open(SNAP)).items()}
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# R41: state the denominator, not just the exciting number.
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withtwin = {k: v for k, v in cur.items() if v.get("d") is not None}
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print("[twin_rescan] %d open stub(s) scanned; %d have a banked twin at d<=%d"
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% (len(cur), len(withtwin), a.max_d))
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if not a.snapshot_only and prev:
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gained = [k for k, v in withtwin.items() if prev.get(k, {}).get("d") is None]
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print("[twin_rescan] NEWLY FREE since the last snapshot: %d" % len(gained))
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for k in sorted(gained, key=lambda k: -(cur[k].get("nins") or 0)):
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v = cur[k]
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tw = v.get("twin") or "?"
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fb, fa = (tw.split(":") + ["?"])[:2]
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print(" %-14s %-16s d=%-3s %-4s ins twin %s" % (k[0], k[1], v.get("d"), v.get("nins"), tw))
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print(" .venv/bin/python tools/family_remap.py --addr %s --from %s --to %s "
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"--to-addr 0x%s --out <dir>/%s.c" % (fa, fb, k[0], k[1].split("_")[-1].lower(), k[1]))
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if not gained:
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print(" (nothing new — the last bank did not unlock a sibling)")
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elif not prev:
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print("[twin_rescan] no previous snapshot; this run is the baseline")
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json.dump({"%s|%s" % k: v for k, v in cur.items()}, open(SNAP, "w"))
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print("[twin_rescan] snapshot written to %s" % os.path.relpath(SNAP, REPO))
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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