M-6 moved the price of a forgery from `touch` to reproducing the product's own artefact
set. The PM checkpoint of 18.09 then paid that price three ways, and row 2 read 3 of 3
GREEN each time:
F1 the whole artefact family written by hand and made internally consistent — coverage,
one proposal/outcome pair per approach, `verdict_id` minted with the product's own
rule. About sixty lines of script. `RUN_ATTESTATION` stood in the output; the row was
green anyway.
F2 four REAL runs' artefacts under a handwritten feedback file.
F4 `<n>/outbox` made a symlink to a real run's directory somewhere else, so a DERIVED
path was redirected by the filesystem.
F4 is a hole. F1 and F2 are not: no arrangement of files can be told apart from a round
that happened, because what is missing is not a check but a WITNESS. These tests say so.
Red here, 16 of them:
- rows 1 and 2 must stop at `gate.FORM_OK` — 0 against the criterion, exit still 1 — on a
tree where every computed check passes but nobody has attested the rounds (F1, F2);
- F2 is built through `outbox.write_outbox` and `write_coverage`, the exact bytes a real
run leaves behind, so it doubles as the control that `verify_run` reads the PRODUCT's
output and not merely the shape this test file writes;
- an outbox that is a symlink out of the round, and an artefact symlinked into one, are
refused by name (F4);
- the step from FORM OK to GREEN is `<n>/attestering.txt`, per round, round 0 included
because row 2 measures round 1 against it: present and matching -> GREEN (the rc-0
control, asserted first in every arm), missing -> FORM OK, present but naming another
round, another run, no date, an unparsable date or a date before the run -> RED;
- nothing in `src/` may write that file: a product that can produce a witness to its own
run has produced exactly the thing rows 1-2 cannot.
One more arm, green on arrival, and that is the finding: the guard at `v1_gate.py:415`
(`keyed != {(run_id, aid)}`), pinned to a constant-false branch, left the suite at 68
passed, identical to baseline. The guard bit, nothing read it — so
`_mut_the_family_is_labelled_for_another_run` gives the pair the right FILENAME and
another run's labels inside.
The fixture now writes the operator's attestation on every round it builds, and the
file's name is pinned in the test file as well (`_ATTEST_FILE`), the way M-5 pins the
rest of the contract: renaming it in the gate alone must fail a test.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The 18.09 re-measurement took row 2 to 3 of 3 GREEN on a tree this product had never
run in: four handwritten outcome.json, four handwritten <run_id>-coverage.json in an
outbox the forger named in those same files, and os.utime for the ordering. "Round 0
must be a named real run" was implemented as "a file with that name exists" — which
touch satisfies. The attack is committed as a red test in b769537.
Three bindings, chosen because each removes one of the forger's three moves:
1. The outbox is DERIVED, never declared. It is <rounds-dir>/<n>/outbox/, and an
outcome.json that names one is refused by name. A path a round file chooses is a
path it can point at a directory the same hand just wrote.
2. "The run exists" now means the run's own artefacts agree WITH EACH OTHER on content
the gate recomputes (verify_run). Every evaluated approach has the proposal/outcome
pair write_outbox actually persists; outcome_type IS the coverage status, reason IS
its detail, a validated row's figure IS the proposal's own claimed_saving_nok, the
provenance stamp follows the same branch, and verdict_id is RE-MINTED here from the
proposal's own IR with the product's one minting rule (A5) rather than read. A
not_evaluated approach wrote neither file, and an artefact naming an approach the
coverage omits belongs to another run. verdicts._features_from_ir is made public for
this: a second private copy in the gate could drift from the rule the run stamped
with, which would turn the binding into a coincidence.
3. mtime decides nothing. The run's time is the round's declared ran_at (ISO-8601 with
zone, required). An mtime is not evidence — it is a filesystem attribute one utime
call sets.
What this does NOT do is prove a run happened. Nothing in a directory can: the outbox
writers are byte-deterministic and carry no clock by contract. So row 2 states its own
limit on every run instead of leaving GREEN to imply it (Row.attests / RUN_ATTESTATION):
that a run was actually made, and when, is the operator's to confirm. The cost of a
forgery moves from touch to reproducing the product's own artefact set, minting rule
included.
Measured, in a scratch copy, never in the work tree — four new mutants in this class,
each one line, each felled by the whole suite:
M7 if "outbox" in data: -> if False: 1 failed (declares its own outbox)
M8 if verdict_id != minted: -> if False: 1 failed (key is not the IR's)
M9 if strays: -> if False: 1 failed (artefact of another run)
M10 ran_at -> coverage mtime 18 failed (incl. the utime test)
Control, same scratch copy, unmutated: 1993 passed, 10 skipped, 5 xfailed.
Work tree, re-run after git add: uv run pytest -q -> 1998 passed, 5 skipped, 5 xfailed.
Gate: uv run python -m portfolio_optimiser.evals.v1_gate -> exit 1, row 2 RED (0 of 3).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The 18.09 re-measurement of 9825b26 made row 2 read 3 of 3 GREEN without a run existing
anywhere: four handwritten outcome.json, four handwritten <run_id>-coverage.json in an outbox
named by those same files, and os.utime for the ordering. read_outcome does cross-check the
outcome against the coverage — but `outbox` is a free path from the round file and the coverage
file is written by the same hand, so "round 0 must be a named real run" is implemented as "a file
with that name exists", which touch satisfies.
The attack is rebuilt in the test rather than driven through the _outcome fixture, so the
fixtures can be raised to a whole run family without the attack drifting with them. Row 1 is
asserted GREEN on the same tree: the feedback IS well formed there, which is what makes this an
attack on row 2 and not a broken fixture.
RED as committed (3, 'GRØNN') != (0, 'RØD') — the fix is the next commit.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Measured 2026-09-17 17:43: vegnormal-okf rebuilt build/ferdig/r761-2025 while this
repository's v1 gate, the stress judge and four corpus tests pointed straight at it.
Rows 6-7 went IKKE MAALT and five tests fell, for a change no one here made. The failure
mode was never falsehood - the gate says IKKE MAALT and exits non-zero, never green - it
was instability: two projects shared a directory neither owns, so what this repository
MEASURES could move without a commit here.
A copy alone would push that directory one move away, so the copy comes with a pin.
frozen_bundles.json (tracked) carries path + sha256 + file count per base; the bundles
themselves are NEVER committed here. Three states, separated by construction: match ->
resolves; gone -> FrozenBundleMissing (an OSError, so the gate's existing except OSError
gives IKKE MAALT + exit 1 unchanged and the corpus tests SKIP, MAJOR-3's ceiling); drift
-> FrozenBundleDrift (a ValueError), loud, named, and never a skip. The two classes are
deliberately unrelated: a caller that catches "missing" to skip must not swallow "drift".
The NAME is hashed alongside the bytes, and the directory name carries the first 12 chars
of the digest so a stale copy is visible in ls. Renewal is a decision: new copy + new pin
in the SAME commit (README). --bundle-root / PORTFOLIO_VEGNORMAL_ROOT stays as the
operator's explicit, UNPINNED live mount.
Iron Law: the tests were written and run RED first (collection error, then two arms of my
own making). Load-bearing MEASURED, eight mutations all red against the WHOLE suite with a
green control of 1984 passed / 5 skipped / 5 xfailed and a strict node-id superset
(1977 -> 1994, 0 removed): M1 the pin is never verified (7) - M2 drift collapsed into
missing (5) - M3 the name is not hashed (40) - M4 the gate seam reverted to root/name (1) -
M5 the corpus helpers skip on drift too (4, one per file) - M6a the slash spelling back in
src (1) - M6b the quoted path segment back in a test (1) - M7 the directory name drops the
short digest (1, and 45 skipped, which proves absence is a SKIP and not a false green) -
M8 the explicit override ignored (3, two of them in test_stress_judge_loadbearing.py,
independent witnesses older than this work).
M2 FALSIFIED THE TEST FIRST: the four parametrised arms did not go red, they went to SKIP
(5 -> 9 skipped) and stayed green - pytest.skip inside a pytest.raises is not a failure.
The arm now catches pytest.skip.Exception explicitly and turns it into an AssertionError.
grep -rnE 'vegnormal-okf/build|["'"'"']vegnormal-okf["'"'"']' src tests contexts -> 0
(3 + 4 hits before; the three remaining prose mentions document history and are allowed).
Gate re-run against the frozen copy: identical to the live mount (rows 0/3 - 0/3 - 3/8 -
no report - 3/8 - IKKE MAALT - 1/20, exit 1).
Order 20260917T223645Z-1296211942-from-.claude.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
An independent review made rows 1, 2 and 4 green from a handwritten
directory in a minute, and 10 of 20 mutants survived the gate's tests.
Rounds now need a new point and their own ids, a timezone-aware given_at
in order, and a report the feedback was given on; every outcome must name
a run whose own coverage confirms (a)-(d), the feedback must fall between
the two runs, and a NOK change under 1 % is noise. Row 4 counts content
lines kept unchanged and in order, shows the expert's additions, and calls
a byte-identical copy untouched unless round 3 acknowledges it. Row 6
counts the runs' own proposals. Types 3 and 7 are proven through the real
flags with the action in the result (still 3 of 8). The contract numbers
and the evidence register are pinned to their source. Every run prints
that rows 1-2 cannot prove who wrote the feedback. A rounds directory
inside the repo that git would commit, and a missing stress or bundle
root, are usage errors.
The review's 20 mutants, re-run: 20 of 20 killed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Stress round 6 validated three falsification arms, and every validated
approach rested only on run-level declarations nobody can attribute to one
approach. declare_requirement now takes a required approach_id (a mandate
id or own-proposal; an unknown id is refused naming the valid ones), and a
ValidatedProposal whose approach has neither a mandate requirement nor a
declaration under its own id becomes validator.Unsupported - a Rejection
subclass carrying the validator's own ruling, reported as `unsupported` in
coverage, the outcome artefact, the settlement and the judge, and never
counted or summed. The rule is active whenever the debate held the
declaration tool, the micro base included; the road and pre-pass paths are
untouched. Declaration quality is not judged, so the rule can be satisfied
by declaring any document the run read.
The v1 gate's row 6 probes pass; its artefact half reads IKKE MÅLT because
stress round 6 predates approach-addressed declarations, and IKKE MÅLT is
never green - it fails the exit code.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The eight U-IDs and their type pointers were checked against the approved
list (no deviation) and the data file now says approved, with the date and
the source. Row 5 no longer reports "not approved" but the measured count:
3 of 8 (U12, U4, U6), because a point counts only when every type it points
at is green and only types 1, 3 and 7 are. No gate logic changed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
One command says how far the repo is from v1, row by row, with an exit
code: rounds with a real domain expert 0/3, traced measurable change 0/3,
feedback types with a way in and an action 3/8 (1, 3, 7), round 3 report
kept - none, MAF points with a green type pointer 0/8 (list not approved),
validated without the approach's own declaration 10/10 in stress round 6,
and `named` 1/20 as a diagnosis that never moves the exit code.
The gate defines the contract (a fixed rounds directory, gitignored by
default), not the generator. Rows 3 and 6 run named tests with
--runxfail; the red probes are xfail(strict=True) so the suite stays green
while the gap is real. No product code changed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
