Card 78 shipped — PR #568 open, challenge closed at 0 conceded 16/16 · DONE

The feature survived its trial and shipped for human review. Three things happened today: the full repo quality gate, an adversarial trial, and the pull request.

The adversarial trial is the interesting part. One AI agent was hired to attack the work — its explicit job was to find real flaws, with full access to every line. A second, independent agent then defended: re-verifying each accusation against the code and re-running the tests. The attacker found 6 real issues — none in the mathematics itself (it verified the copula algebra by hand and called it sound), but genuine completeness gaps. The two serious ones:

• A bookkeeping test elsewhere in the repo still said "65 features" — the kind of stale mirror that would have failed the test suite on deploy day. Fixed to 66.
• The one code path every production machine is guaranteed to take on upgrade day — restarting from a "memory snapshot" that predates this feature — had zero test coverage. The code was correct (the attacker traced it by hand), but per this project's standards, untested-on-the-guaranteed-path is a real finding. A test now deletes the new field from a real snapshot's JSON — exactly what an old snapshot looks like — and proves: the 12 existing features continue seamlessly, the new one politely waits out its 200-bar warm-up, then converges to values identical to an uninterrupted run.

Plus four smaller ones (a documentation overclaim about a floating-point corner case, a missing guard against a corrupted snapshot pairing returns with the wrong bars' durations — now trimmed at restore and proven to re-converge, eight stale "all 12" comments, and a validator that would have rejected a legitimate zero-duration bar). All six were fixed in this same change-set; the defender independently confirmed each fix and re-ran everything: 0 conceded.

Then the loop did exactly what its contract says: it stopped. The commit and pull request (#568) are open for the human operator. Merging, deploying, restarting the live pipeline, and backfilling history are deliberately human decisions — the loop never touches production.