Commit Graph
143 Commits
Author SHA1 Message Date
timothy 1ab50236c3 fix(786): share the last three detectors with their proofs, and close the round-4 wording items
Round four returned MERGEABLE with seven LOW/NIT items. All seven are fixed rather than shipped,
because three of them are the same defect class this branch has been closing all along.

THREE MORE PROOFS RE-IMPLEMENTED THE COMPARISON THEY NAMED. The previous commit extracted
`duplicate_row_faults` and `env_shadow_faults` for exactly this reason and left the set-equality and
Kind comparisons inline, so `test_MUTATION_a_guard_job_with_its_row_DELETED_is_reported`,
`…_a_PHANTOM_row_is_reported` and `…_a_row_whose_KIND_disagrees_is_reported` still rebuilt
`declared - listed` and the Kind check themselves. Review demonstrated it by flattening the live
assertion and watching the file stay green at 50 passed.

`coverage_faults(declared, listed) -> (missing, phantom)` and `kind_faults(roles, listed)` are now
named detectors that the live checks and all three proofs call, and each proof gained a negative
control. Witnessed after the change:

  coverage_faults disarmed -> deleted-row proof REDDENED, phantom-row proof REDDENED
  kind_faults     disarmed -> kind-disagreement proof REDDENED

Worth recording that the system was never fail-open here: the manifest harness already caught the
same disarm ("the named test still PASSED with the clause mutated"). The in-file proofs were weaker
than their names, not absent.

THE ENV-MERGE EVIDENCE WAS STEP-SCOPE USED FOR A JOB-SCOPE CLAIM. `build`'s Smoke step shows the
runner LAYERS step-level `env:` over workflow-level, and what this branch newly relies on is
job-level layering. Measured: on origin/main no job anywhere declared both a job-level `env:` and a
consumed workflow-level var, so the job scope had no in-repo witness. The gap is now named, with
the exposure bounded — the two publish jobs are `if: github.event_name != 'pull_request'`, so PR CI
cannot exercise it and a non-layering runner would fail loudly on the first push to `main` trying to
publish `":<sha>"`, not silently.

Four wording fixes, each measured:
  * the record still enumerated "exactly three jobs are `none`" while three other sites say a list
    in prose is a second copy that rots — the fourth site now agrees with them.
  * "the remaining `docker-build.yml` jobs" over-scoped: six remain after `test`/`migrations`, and
    the table has four, because `toolchain-preflight` and `scan` carry the mark/assert protocol
    voluntarily without being in the enforced scope. Said so.
  * "on every push to `main`" ignored the Smoke step's own `docs_only` gate.
  * `docs/ci-cd.md`'s excluded-token list omitted `tar`, which the source comment includes; and the
    `scan` Proof cell disclosed the two pytest files' `NONE` but not the cited script row's, two
    cells from a sibling that discloses it — so that row now states it claims no proof at all.

Suite: 1178 passed, 2 skipped (the production-log guard deselected; it is the shared-$HOME flake,
green in isolation — #809/#822). ruff 0.12.11 clean over all 47 tracked files; decisions-validate
OK; doc-narrative 0 warnings.

Refs #786
Refs #789
2026-08-28 22:14:44 +02:00
timothy e855a79999 fix(786,789): make the new proofs exercise the shipped detectors, and rename advisory -> report-only
Round three, reviewed twice in parallel (Codex gpt-5.6 and a cold Claude brief). Both converged
independently on the same two MEDIUM findings, which are the branch's own defect class reproduced
by its most recent commits: a test asserting a guarantee it does not provide.

1. THE PROOFS DID NOT EXERCISE THE CODE THEY NAMED. `test_MUTATION_a_DUPLICATE_row_is_reported`
   rebuilt the comparison with its own `len(set(...))`, and `test_MUTATION_a_SHADOWING_env_key_is_
   reported` built a synthetic dict and intersected it by hand. Both stayed GREEN with the live
   check disarmed — a behavioural test wearing a MUTATION name, which is exactly what
   `testing.guard-ships-with-mutation-proof` excludes.

   `duplicate_row_faults(rows)` and `env_shadow_faults(docs)` are now named detectors; the live
   test and its proof both call them. Verified by reproducing the reviewers' own demonstrations
   against the fix:
     duplicate detector neutered -> REDDENED "the DETECTOR did not report a second row for ..."
     shadow    detector neutered -> REDDENED "the DETECTOR did not report a shadowing job-level key"

2. `test_a_commented_out_marker_does_NOT_count` CLAIMED TO GUARD A TEXT-SCAN REGRESSION AND DID
   NOT. It re-implemented the read inline and never called `declared_roles`. One reviewer built a
   comment-blind grep reader reproducing all 17 current values byte-identically and ran every
   non-parametrised test in the file: nothing went red.

   `declared_roles(paths=None)` now takes an injectable population, so the test drives the REAL
   reader over a fixture, asserts the fault function reports it, and pins that a live marker in the
   same shape is still read (so the assertion cannot be satisfied by a reader returning None for
   everything). Verified: installing the grep reader now reddens it.

RENAMED `advisory` -> `report-only`. docs/ci-cd.md already calls `functional-e2e` an advisory job
in a DIFFERENT sense — not a required context, though it can certainly fail — while this branch
declares that job `guard`. A reader would infer the wrong marker for exactly the job whose marker
is `guard`. The value is now unambiguous, its Kind is `REPORT-ONLY`, and the manifest's declared
`expect` string moved in lockstep with the message it matches.

The rename also caught its own adjacent defect: `REPORT-ONLY` contains a hyphen, which the row
regex's `[A-Z]+` Kind group did not match, so the docs-reminder row stopped parsing. That surfaced
as a loud red naming the job — the fail-closed property documented one commit earlier, working.
Widened to `[A-Z-]+`, matching the `BEHAVIOUR-ONLY` convention in the sibling table.

Nine further accuracy findings, each measured before fixing:
  * "would therefore flag every job" — false. git/jq/python3/curl flag 4 of 8. And the REASON was
    wrong too: `small` is git-only and provisions Python via actions/setup-python, while `build`
    runs on stock ubuntu-latest, so "the bare runner has them" conflated two lanes. They are
    excluded because they do not DISCRIMINATE.
  * "four lines from the container: block" / "in one diff hunk" — false. Measured 6, 58, 6, 7, 7;
    `migrations` has the whole `services:` block in between. The property the guard rests on is
    INDEPENDENCE, not proximity, and the docs now say so.
  * "the merge semantics never have to be relied upon" — too strong. The check proves no NAME
    COLLISION; it does not prove the runner merges. That evidence is in-repo and live and is now
    cited: `build`'s Smoke step declares its own step-level `env:` and consumes workflow-level
    `${IMAGE}` on the same line, on every push to main.
  * "every malformed row fails closed" — over-broad. A malformed DUPLICATE is invisible: its job is
    already satisfied by the well-formed row. Stated.
  * The `scan` Blocks cell said "a marked job's run: body"; the ban's scope is DELIMITER_BAN_JOBS
    (the required contexts PLUS `build`), which is wider, and `scan` carries no `if:` so it runs on
    PRs too.
  * The functional-e2e row credited `e2e-local.sh` (TOOLING, only boots the instance) for curl
    assertions that live in `e2e-functional.sh` (GUARD).
  * `report-only` was defined nowhere; now defined as a verdict the job cannot enforce, with the
    limit stated (nothing detects a `guard` job whose checks are all continue-on-error).
  * "inline rows carry Proof: NONE" was stated universally while two rows cite a pytest; hedged,
    and each such row names which PART it covers.
  * "Exactly three jobs are `none`" was an unchecked prose enumeration in three sites, in a branch
    that deleted one for that reason. Removed; the markers are the source.
  * Plus: the ci-cd tool list was short by `dotnet-ef` and `playwright`; docs/README said only a
    `guard` job needs a row; "all three checks fail together" read as the opposite of "go blind";
    and #774's unrealised consequence is now subjunctive rather than past tense.

Suite: 1178 passed, 2 skipped, 1 known flake (test_hook_fire_log's production-log guard, which
compares mtimes under the SHARED ~/.cache/ersatztv/hook-fire/ — four session logs were written
during the window; 78 passed in isolation. ersatztv#809/#822, evidence posted there).

Refs #786
Refs #789
2026-08-28 22:14:44 +02:00
timothy 402032db98 fix(786,789): sweep the retracted rule out of three sites, and reject duplicate table rows
Cross-family cold re-review (Codex/gpt-5.6) returned BLOCKED with four findings. All verified
independently before fixing.

1. HIGH — THE RETRACTED RULE WAS STILL STATED AS ACTIVE IN THREE PLACES. The previous commit
   replaced the guard/none rule in docs/guard-inventory.md and flipped `test`/`migrations` to
   `guard`, but left the superseded wording in test_workflow_job_guards.py's module docstring,
   docs/ci-cd.md, and the decision record's `rule:` — from which the generated catalog (and
   MemPalace) copied it faithfully. Those three explicitly called `docker-build.yml::test` `none`,
   which is the opposite of what the workflow now declares. A maintainer following the ACTIVE
   decision record could downgrade both required jobs, delete their rows, and every structural
   check would stay green, because the checkers read the markers and the markers would agree with
   the stale prose.

   This is `process.enumerate-clauses-to-close-a-sweep` failing on my own retraction: I fixed the
   site I was looking at and left the paraphrases. All three now state the verdict/artifact rule,
   and each carries the rejected reading explicitly so it does not come back. Swept by grepping
   the RETRACTED words, not the new ones — the only hits left are the deliberate
   rejected-alternative notes.

   Same commit: docs/ci-cd.md claimed "every job in every workflow declares two things", which its
   own table contradicts — `CI_EXECUTION_CLASS` is docker-build.yml only.

2. MEDIUM — A DUPLICATE ROW WAS SILENTLY COLLAPSED. `inventory_jobs()` built a dict, so two rows
   for one job overwrote each other, last-one-wins, and set equality still held both ways. The
   realistic arrival is a merge conflict leaving an ADVISORY and a GUARD row for the same job: the
   registry contradicts itself and its checker reports green. Rows are now kept as a list and
   counted against distinct keys by `test_no_job_has_TWO_rows`, with a mutation proof carrying its
   own negative control. Witnessed: planting a contradictory duplicate row for
   `pr-checks.yml::ci-image-pin` in the real file reddens two named tests; restoring it returns 48
   passed.

3. LOW — the toolchain-preflight row said it blocks "every downstream job". Measured: NOTHING
   `needs:` it (only `build` has a `needs:`, on test/migrations/scan), and it is not a required
   context. Corrected to what it actually blocks — a merge, through the combined commit status the
   consent gate reads (#598) — and why it must not consume the image it checks (#772).

4. LOW — the predicate's documented residue was partial. Now enumerated in both directions:
   false positives (trailing comment, echo string, heredoc body — stripping is line-based, not
   shell-aware) and false negatives (absolute path, script indirection, a `#` heredoc line that a
   later command strips and executes).

   One of those claims was WRONG as first written and is corrected to what execution shows:
   variable indirection is invisible ONLY when the assignment is not in the same run body.
   `$SDK_CMD build` with `SDK_CMD` from `env:` is missed; `SDK_CMD=dotnet` written in the same body
   IS caught, because the assignment line carries the bare token.

Re-review confirmed the four earlier findings are genuinely fixed: the classification is
consistent across all 17 jobs under the verdict/artifact rule with no job it would reclassify;
both repaired positive controls redden on an emptied population; the corrected functional-e2e
claim is true and the old wording has no matches; the adjacency residual is accurately disclosed
and not overstated; the summary counts assertion holds at (43, 6, 21, 21, 6, 16).

ruff 0.12.11 clean; decisions-validate OK; targeted suites 145 passed.

Refs #786
Refs #789
2026-08-28 22:14:44 +02:00
timothy 0c3625d2e2 fix(786,789): reclassify test/migrations, de-vacuum two controls, correct a refuted claim
Cold adversarial review of b7e5c35fb returned BLOCKED with four substantive findings. All four
are real and all four are fixed here; each fix is demonstrated rather than asserted.

1. THE guard/none LINE EXCLUDED BOTH REQUIRED CONTEXTS. The rule was "a guard enforces an
   invariant about the REPOSITORY; a job exercising the PRODUCT is `none`". It reads as
   principled and put `test` and `migrations` outside the table — the two required Actions
   contexts on `main` per .gitea/required-status-contexts.json, i.e. exactly the jobs where a
   failure to fire is fail-OPEN against branch protection, and exactly the gap #786 exists to
   close. It also could not survive its own examples: `test` runs ToolCatalogTests.cs and
   web/src/api/*.guard.test.ts, the structural guards this document's own scope-limit item 2
   names.

   Replaced with a line that can be restated: a `guard` job's output is a VERDICT; a `none`
   job's output is an ARTIFACT. A `none` job can still go red — that is an error in producing
   the thing, not a finding about the repo. `test`, `migrations` and `functional-e2e` flip to
   `guard` and gain rows; `none` is now exactly the two image publishers plus renovate. The
   rejected rule is recorded so it is not re-adopted.

2. TWO POSITIVE CONTROLS WERE VACUOUS — both of them ones this commit series added, while the
   pre-existing sibling it copied was not. `len(_MUTANTS) == 2 * len(population)` is `2N == 2N`,
   a tautology at N=0, so an emptied population satisfied it while the parametrised proofs
   collected zero cases. Both now assert non-emptiness FIRST. Demonstrated after the fix, by
   degrading each population to empty:
     role mutation set        -> REDDENED: "declared_roles() is EMPTY ..."
     declaration mutation set -> REDDENED: "the workflow parsed to ZERO jobs ..."
     phantom-row proof        -> REDDENED: "the table parsed to nothing ..."

3. A MECHANISM CLAIM IN A DECISION RECORD WAS REFUTED BY EXECUTION. Four sites (the test
   docstring, docs/ci-cd.md, the record's `rule:`, and the generated catalog) said
   `functional-e2e` reaches dotnet only through scripts/e2e-local.sh and so is invisible to the
   step scan. It is not: that job runs `dotnet restore`, `npm ci`, `npm run build` and
   `dotnet build` in its own YAML, and the derivation detects it. Measured: the blind-spot set
   (declared toolchain minus detected-from-own-steps) is EMPTY today, all five jobs detected.
   Reworded to say that, and the converse is still not asserted because a future job could be
   written behind a script.

4. THE ADJACENCY RESIDUAL WAS UNDERSTATED. All three checks fail together under one edit that
   drops the container block, flips the marker AND moves the invocation into a script — the
   review verified it. Now disclosed in the code and in docs/ci-cd.md, with what actually bounds
   it: the failure MODE, not its likelihood. The job then dies on a missing binary, loudly,
   where #774's original defect sent a REQUIRED check green on the bare runner. A silent pass
   traded for a noisy crash, not a hole closed.

Also from the review: the docs-reminder row said the job "never fails" (its Checkout step can);
the phantom-row proof could not fail (it supplied its own phantom, so it now pins the unmutated
set to zero phantoms first); and the scope-limit paragraph was reworded from draft history into
a rejected-alternative note.

Review findings 6 and 7 (regex false positives on comments, false negative on `dotnet-ef`) were
already fixed in 75747fbca, which the reviewer did not see.

Suite: 1161 passed, 2 skipped. ruff 0.12.11 clean; decisions-validate OK.

NOTE for whoever sees a red `test_hook_fire_log.py::test_the_suite_does_not_write_to_the_
PRODUCTION_log` locally: it snapshots mtimes under ~/.cache/ersatztv/hook-fire/, which is shared
across worktrees and sessions, so a second Claude session running concurrently reddens it. Seen
once here with three session logs written during the window; green in isolation, both before and
after this change. That is ersatztv#809 / #822, not this diff.

Refs #786
Refs #789
2026-08-28 22:14:44 +02:00
timothy f420649fa2 fix(786,789): harden the step-text predicate and sharpen the guard/none rule
Self-review findings on the previous commit, all measured before fixing.

THE PREDICATE HAD BOTH FAILURE DIRECTIONS. Measured against constructed inputs:

  full-line comment       -> ['dotnet']      false POSITIVE
  echo string / heredoc   -> ['dotnet']      false POSITIVE
  dotnet-ef migrations    -> []              false NEGATIVE
  playwright install      -> []              false NEGATIVE

The false positive is the dangerous one: a bare-runner job whose COMMENT merely mentions dotnet
would redden the suite on a correct tree, and a correct guard going red on a correct tree is the
fastest route to that guard being deleted. Full-line comments are now stripped before matching.
`dotnet-ef` and `playwright` join the tool list, and the alternation is sorted longest-first so the
match does not depend on backtracking out of the `dotnet` prefix.

The residue is stated in the code rather than papered over: a TRAILING `# ...` comment, an
`echo "run dotnet build"` and a heredoc body all still match. Parsing those means parsing shell,
which `testing.fixing-a-parser-bug-introduces-the-next-one` prices at three or more rounds. It is
tolerable only because of its DIRECTION — a loud red naming the job and the token, with an obvious
remedy — never a silent pass.

Verified the real workflow's classification is unchanged and exact after the change:
needs-toolchain derives to {test, migrations, functional-e2e, api-docs, format}, equal to the
declared set, zero violations.

THE GUARD/NONE RULE WAS UNDER-SPECIFIED. "Purpose, not whether a step can fail" does not decide
`docker-build.yml::test`, which blocks the merge as a required context. Sharpened everywhere it is
stated: a `guard` job enforces an invariant about the REPOSITORY or its ARTIFACTS; a job that builds
or exercises the PRODUCT is `none` even when it is a required check. No marker value changed — the
rule now explains the classifications that were already there.

Also: a row for test_workflow_job_guards.py in the file-populations table, and the scope-limit
preamble de-narrated (it recounted an earlier draft; the operative warning — an unlisted class reads
as covered — is kept, the autobiography dropped).

Refs #786
Refs #789
2026-08-28 22:14:44 +02:00
timothy 20a6fed165 fix(786,789): workflows declare their own per-job metadata; guard populations derive from it
together. #786 asked for inline workflow-job guards to be enumerated using "the same
reviewed-registry-cross-checked-both-ways shape TOOLCHAIN_JOBS uses"; #789 said that
exact shape is the defect and must be deleted. Building #786 as written would have
constructed the artifact #789 removes.

Both now derive from a marker the workflow declares about itself:

  env.CI_EXECUTION_CLASS  toolchain | bare-runner   (docker-build.yml)
  env.CI_JOB_ROLE         guard | advisory | none   (every tracked workflow)

Missing or unknown values are hard failures in both checkers — a marker scheme whose
absent value defaults to a safe class stops applying the moment a job is added and
nobody notices.

it: set equality between two DERIVED sets is blind to a member leaving both at once, so
a job losing its container: block leaves the declared and pinned sets balanced. The
population needs an anchor that does not move with the block. The marker is that anchor
and is better placed — claim and reality in one diff hunk.

Its cost is adjacency, and is paid rather than argued away: a marker four lines from the
container: block can be deleted with it, where a distant literal could not. So the file
derives the requirement a THIRD time, from each job's own step bodies, independent of
both marker and block. That is also the only check that sees the failure #789 filed —
a .NET step MOVED into a bare-runner job, where no set changes at all. It is a
necessary condition only (functional-e2e reaches dotnet via scripts/e2e-local.sh), and
says so; the converse is deliberately not asserted.

test_workflow_job_guards.py asserts set equality both ways against a new
"Workflow-job guards" table in docs/guard-inventory.md. The marker records the job's
PURPOSE, not whether a step can fail: docker-build.yml::build runs a smoke test that
fails the job and is still `none`. Read the other way, every job is a guard and the
table distinguishes nothing.

The four jobs #786 named as having no dropped-step guard each get a recorded decision in
that section. None is a required context, so a drop there cannot send a required check
green; build's residual was already self-documented and is now indexed. ci-step-ran.sh
is deliberately not widened — its scope is derived from the required contexts (#787) and
test_ci_dropped_step_guard.py argues the ban belongs where a drop is consequential.

Two corrections to the issues, both measured rather than assumed:
  * #789's "editing docker-build.yml re-points ci-image-pin's expected" is false.
    expected="$(git log -1 --format=%H -- docker/ci)" — the pathspec is docker/ci only.
    Verified: docker-build.yml was last touched by HEAD and expected still resolves to
    32747a0, matching the pin. No publish-then-pin two-step was needed.
  * #786's "15 jobs across 6 workflows" is 17.

Proofs, all executed: three real mutations of docker-build.yml witnessed red (container
block removed, marker removed, dotnet step planted in a bare-runner job); the two new
checkers ship parametrised mutants over every job; the declared clause in
mutation_manifest.py is retargeted to the surviving comparison, and the new checker's
entry mutates the guarded ARTIFACT (a renamed table row) per the checker-guard
exception. test_guard_inventory.py's row parsing is scoped to its own section so the
second table cannot be read as phantom guard files.

Suite: 1161 passed, 2 skipped (was 1083) — scripts/tests, ruff 0.12.11 clean.

Refs #786
Refs #789
2026-08-28 22:14:28 +02:00
timothy 609fd852c2 fix(763): page both /statuses/{sha} reads to a validated terminator (#868)
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 7s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 20s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m45s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m10s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m2s
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m9s
2026-08-28 17:34:48 +00:00
timothyandClaude Opus 5 5fb9c8537a docs(747): re-verify the Gitea 1.25.4-pinned CI claims on 1.27.1, and measure the merge-gate semantics that were source-attested (#867)
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 10s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 17s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 9m20s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m25s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 5m48s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m10s
Population derived from `git ls-files`, not the issue's 9-key list (~21 claim sites).

Re-confirmed unchanged on 1.27.1: the distinct `skipped` commit-status state; `compare` serving
no `files`; no agent-side cancel route (REST route + swagger only); `branches: [main]` suppressing
the run off a non-main base.

Newly measured on four throwaway scratch bases, `main`'s rule never PATCHed: an absent required
context blocks an ORDINARY merge without needing `block_admin_merge_override` (that field governs
the FORCE path only), and `enable_bypass_allowlist` with an empty list is NOT a substitute for it.
Trap recorded: the PR API reports `mergeable: true` while such a merge is refused.

Left explicitly dated with reasons: push-supersession auto-cancel, `pull_request_target` overlap,
`--depth=1` no-merge-base, and the scope-enum/`reqRepoWriter`/403 items. Not a corpus sweep, and
`ci.actions-credential-scoping` now says so. `review-verdict.yml` untouched — #763 holds that file.

Five adversarial review rounds (21/12/9/6/2). Caveat: all same-model-family; Codex was rate-limited.

fixes #747

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-28 16:51:13 +00:00
timothyandClaude Opus 5 462118d98d fix(763): round 9 — assert the repair's reason positively, not by absence
Build ErsatzTV Image / CI toolchain image resolves (pull_request) Successful in 10s
Build ErsatzTV Image / Delimiter ban (release path) (pull_request) Successful in 22s
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 17s
PR Gates / Docs update reminder (pull_request) Successful in 21s
review-verdict/h10 Review-verdict: MERGEABLE @ 462118d (base: main)
PR Gates / Fix proofs (Proves trailers) (pull_request) Successful in 14s
PR Gates / decisions lifecycle (pull_request) Successful in 23s
PR Gates / Script lint and tests (ruff + pytest) (pull_request) Failing after 14s
Review verdict / Set review-verdict status (pull_request_target) Successful in 7s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Canceled after 1m31s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Canceled after 0s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Canceled after 0s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Canceled after 0s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Canceled after 0s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Canceled after 0s
A sixth cold review found everything in round 8 clean except one line, and it
is the rule this branch keeps rediscovering: the test pinned the new
`raced_why` only by asserting the ABSENCE of the borrowed wording. Measured —
replacing the string with `zzz` left the suite green while an operator would
get `::error::… — zzz.` beside a sticky sentinel. The sibling test 330 lines
away states the rule and follows it; this one did not.

Now asserted positively, with the em-dash and full stop discriminating the
`::error::` reason from the `::warning::` text that continues ", which cannot
be true". The `zzz` mutation reddens it.

Three nits from the same review, all verified by execution rather than reading:
  - the earlier fixture's row was excluded by the strict `> $since` because the
    mark became its OWN id, not because it sat below the mark.
  - the predecessor comment said `main` "warned only on `null`". True of the two
    EMPTY shapes being contrasted; an empty body and a non-array object warned
    as well. Scoped.
  - `docs/ci-cd.md` and the record described the `::error::` as a two-way split
    (found vs unverifiable). Round 8's whole argument is that a complete read
    returning an IMPOSSIBLE answer is a third case, not a variety of the second
    — which is the operator-facing point, since it decides whether to go looking
    for an API failure that never happened. Both now say three.

The review re-verified, by comment-stripped diff, that round 8 changed no
executable line beyond the `raced_why` string and the if/elif restructure, and
independently reproduced both inertness measurements and the `origin/main`
predecessor behaviour.

Verification: `scripts/tests` 1097 passed, 2 skipped; decisions_validate and
build_decisions_catalog --check exit 0.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 18:42:22 +02:00
timothyandClaude Opus 5 e6f04cc739 fix(763): round 7 — reject an empty post-write history, and the fourth overclaim
A fourth cold review returned NOT-MERGEABLE on two Mediums. Both fixed, plus
its three Lows.

MEDIUM, and a defect this branch introduced. Tolerating a `null`/`[]` page 1 as
"complete, zero rows" is correct for the PRE-write caller — a head nothing has
posted to genuinely has no statuses — and impossible for the POST-write one,
which has just written a row to that sha. The body is well-formed, so nothing
retries it, and the walk reports success: `raced=0` concluded from a list that
cannot be real, on the one path whose failure direction is toward SUCCESS.
Worse than the code it replaced, which at least emitted a `::warning::` — a
logged fail-open had become an unlogged one. Reviewer measured both directions.

The post-write caller now rejects an empty result itself; the walk stays
caller-agnostic because the pre-write caller genuinely needs the empty answer.
This is NOT the withdrawn currency witness: that asked whether ANY row sat above
the mark, which an unrelated newer row satisfied while the rejection stayed
hidden, and it fired on schema-valid staleness. This asks only whether the list
is EMPTY — a state no unrelated row can produce and no ordering can disguise.
It carries neither defect. Proved by fixture; disarming it reddens the named
test, and the previously-uncovered `null`-at-page-1 clause is now covered too.

MEDIUM — the fourth overclaim of the same class, in the decision record body:
"Uncertainty must fail closed at both ends … Both repair now." The page-2 probe
was DELETED, not converted; it repairs nothing. It also contradicted the
record's own `rule:` ("the two directions are NOT symmetric") and the bullet
directly beneath it. Round 5 retracted this wording in `docs/ci-cd.md` only —
the sweep was by subject, not by the retracted words.

Also fixed:
  - the record presented "an empty FIRST page is legitimate" as a property of
    the walk; it is a property of the pre-write caller.
  - `docs/ci-cd.md` called the numeric-only id comparisons a fix for mark
    inflation; they are a TYPE guard, closing the string half. A corrupt but
    genuinely numeric id still inflates the mark — not attacker-controllable,
    since ids are server-assigned, and now stated rather than implied.
  - `test_a_partial_mark_is_SAFE...`'s self-guard promised to detect that the
    fallback ran; it keys on a warning emitted by a different condition, so
    deleting the fallback left it green. Its sibling is what reddens; the
    message now says what it actually pins.
  - the order-faithful fixture appended the job's own POST after the reversal,
    serving the NEWEST row on the OLDEST page — the opposite of DESC, in the one
    fixture that exists to be ordering-faithful.
  - "twice per walk" for the wasted sleep; it is once per walk, twice per run.
  - a dead counter read in the DESC mode.

Rebased onto b16ec15d6 (the other session's #781/#799 docs work; no file
overlap, no conflicts).

Verification: `scripts/tests` 1097 passed, 2 skipped; fifteen executed mutations
across rounds 2-7; decisions_validate and build_decisions_catalog --check exit 0.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:47:06 +02:00
timothyandClaude Opus 5 89db6022d9 fix(763): round 6 — measure the partial-mark fallback under the REAL ordering
A fourth cold review (Opus, isolated worktree, tests/double/docs focus)
reported no correctness bugs in shipped behaviour but two coverage defects on
exactly the two things this change advertises. Both are closed.

The partial-mark fallback's safety is a claim ABOUT THE ORDERING — page 1 holds
the newest rows, so a walk that fails later still saw the true maximum. The
fixture pinning it served ASCENDING ids, i.e. the arrangement the design calls
unsafe, and passed anyway because the raced row's id sat above even the partial
mark. It could not distinguish safe from unsafe.

The stub now HONOURS the sort parameter: order-faithful modes serve DESC by
default and ASC when the request asks. The new fixture holds a PRE-EXISTING
base-mismatched verdict at id 7055 among 60 rows. Under DESC the salvaged mark
is 7059 and that row is below it — the exemption correctly stands. Under ASC
the mark would be 7049 and that untouched row tests as NEWER, a sticky repair
on a head nothing raced. So re-adding `sort=highestindex` now reddens by
BEHAVIOUR, not only by the structural assertion added in round 5. Measured:
re-adding it reds both tests.

Most modes stay ordering-blind on purpose and now say so: they test walk
COMPLETENESS, which is order-independent, and insertion order is what lets a
fixture place a row beyond page 1.

Also fixed:
  - `null` is accepted as an empty page. An array-only gate is the exact shape
    of #751 — `count_retargets` had one, the timeline really did return `null`
    past the end, and the fence withheld EVERY exemption from the day it
    shipped. The same narrowing here is worse, because this walk's failure is
    the STICKY sentinel: every exempt PR would need a hand-posted verdict, per
    head. Tolerating `null` cannot misread `[]`. Proved by fixture.
  - the fail-closed comment said "past the 1000-row page cap"; the bound is 950,
    as the walk's own comment and both docs already said.
  - the docs claimed "only a read returning no rows at all abandons the mark".
    False: a VALIDATED empty history yields a mark of 0 and is not abandoned —
    that is the normal first run. What abandons it is a read that both FAILED
    and returned nothing. Corrected in ci-cd.md and the record `rule:`.
  - a comment pointed at the page-2 probe "a few lines further down"; it was
    deleted, so the deixis pointed at nothing.
  - the stub claimed its logical-read counter "is only reached on a SUCCESSFUL
    page-1 serve" — measured false; it counts page-1 requests, retries included.
  - five `(round N)` markers removed. A round number is session chronology and
    does not parse for a reader who never saw it (`docs.no-session-narrative`);
    an issue number does. The four that remain predate this change.

Verification: `scripts/tests` 1096 passed, 2 skipped. Thirteen executed
mutations across rounds 2-6. The reviewer independently re-ran the earlier
matrix and confirmed it, with one correction carried here: two of those
mutations redden MORE than their named test, so "each reddening exactly its
named test" was wrong — they redden at least it.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:34:08 +02:00
timothyandClaude Opus 5 53ee44cbc1 fix(763): round 5 — correct the overstated motivation, and fix the string-id twin
A third cold review (Opus, isolated worktree) returned NOT MERGEABLE with one
High and three Medium. All are addressed.

HIGH — the stated motivation was wrong, and self-contradictory once round 4
landed. Under the server default (`created_unix DESC`) page 1 holds the NEWEST
rows and ids are monotonic with `created_at`, so page 1 already carried the
true maximum id AND every row newer than the mark — the only rows the
post-write check selects on. A single-page read therefore missed a raced
verdict only if more than 50 rows were created INSIDE the write window, not
merely on "a head with more than 50 rows", which the issue, the comments and
the docs all asserted. Reviewer executed an order-faithful DESC stub: a
page-1-only reader repairs identically to the full walk.

What actually removed #761's stall is retiring #751's page-2 probe, not the
paging. The walk still earns its place, for a reason now stated instead of the
false one: it stops the gate's one fail-toward-SUCCESS path depending on an
undocumented ordering the server honours only coarsely (page 1 came back
`114,112,113,111,110`). That measurement was deleted in commit 1 and is
restored, since round 4's safety argument rests on exactly it.

MEDIUM/real defect — the string-id TWIN, live on `main` and one expression
away from the fix already made: `select((.id? // 0) > $since)`. jq orders
strings above every number, so a PRE-EXISTING row with `"id": "3"` reads as
newer than any mark, is counted as having raced the write, and gets the sticky
sentinel plus a false "was overwritten" on EVERY later run — a permanent
per-sha stall no re-trigger clears. Now numeric-only, with a test.

Also fixed: a non-empty history carrying no numeric id was collapsed to a mark
of 0 (making every pre-existing row look newer); it is now reported unusable
and the check is skipped. `sleep` no longer fires after the final attempt.

Three unpinned clauses now have tests, each proved by an executed mutation:
  - the page cap is a refusal, not a terminator (1050-row fixture)
  - the `::error::` found-vs-unverifiable distinction (forcing `raced_why=human`
    reddened nothing before)
  - the walk requests no sort order — a structural guard on round 4's
    withdrawal, which nothing mechanical protected. It reads request LINES, not
    comments, since the withdrawal note names the parameter to explain it.

Honest scoping, not new code: the test double is ordering-blind, so the paging
tests prove WALK COMPLETENESS, not that a real raced verdict would otherwise be
missed — under DESC it would not be. The stub comment and the docstrings now
say so rather than implying the stronger claim.

Docs: `ci-cd.md` and the record's `rule:` carry the corrected reachability, the
DESC dependency of the partial-mark fallback, and both rejected alternatives
stated as rejected alternatives rather than as draft chronology
(`docs.no-session-narrative`).

Verification: `scripts/tests` 1094 passed, 2 skipped; eleven executed
mutations across rounds 2-5, each reddening exactly its named test;
decisions_validate and build_decisions_catalog --check exit 0.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:34:07 +02:00
timothyandClaude Opus 5 1eb7b41fc1 fix(763): round 4 — withdraw the ASC sort, which inverted the partial-mark fallback
Round 3 added `sort=highestindex` to close a mid-walk-insert gap: under the
server default (`created_unix DESC`) a row inserted while the walk is running
lands at position 0, on a page already read, so the walk never sees it.

That fix and the round-2 partial-mark fallback are incompatible. ASC puts the
OLDEST rows on page 1, so an incomplete walk takes its high-water mark over
the oldest rows — leaving every pre-existing row above the mark and read as
"raced". That is a spurious STICKY repair on a head nothing raced, which is
precisely the #761 failure this whole issue exists to remove. Under the
default DESC the newest row is on page 1 by construction and ids are monotonic
with `created_at` (measured), so a partial mark is at or very near the true
maximum and "lower is safe" actually holds.

Two defects from one mechanism again, so the mechanism goes rather than
getting patched: the sort is withdrawn and the mid-walk-insert residual is
ACCEPTED and documented. It is bounded — a row arriving after this job's POST
is not one this job overwrote, and being newest it wins on the combined
endpoint branch protection reads.

Both the code comment and the docs record the withdrawal and the reason, so
the next reader does not re-adopt it.

Verification: `scripts/tests` 1090 passed, 2 skipped; the partial-mark mutation
still reddens `test_a_PRE_WRITE_paging_failure_still_yields_a_usable_high_water_mark`;
decisions_validate and build_decisions_catalog --check both exit 0.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:34:07 +02:00
timothyandClaude Opus 5 007d2fd3df fix(763): round 2+3 — close the fail-opens the paging change introduced
Two independent cold reviews (Codex GPT-5.6 cross-family, and an isolated
Opus agent) converged on the same blocker, which is fixed here along with
everything else they found.

BLOCKER — the mark walk turned a fail-closed case into a fail-open. The
high-water mark gates the post-write race check entirely: `max_id_before=-1`
skips it. Before paging, only a failure of the single page-1 request could
reach that. Requiring a COMPLETE walk newly routed a page-2 hiccup, an
over-cap history, or one malformed id on a later page into the same hole, so
a human rejection racing the write was left green where `main` repaired.
A partial list now still yields a mark: it can only be LOWER than the true
maximum, which makes the check more eager, never blinder. Only a read
returning no rows at all abandons it — the pre-existing #849 gap, unchanged
and now asserted by a test so it stays visible.

WITHDRAWN — the "currency witness". It produced two defects from one
mechanism, which is the signal to remove rather than patch twice: counting
ANY row above the mark does not witness this job's write, so a stale-but-valid
snapshot carrying an unrelated newer row passed while hiding a rejection; and
a schema-valid stale read is not retried, so one such response turned a
transient anomaly into a permanent sentinel. The hazard has no mechanism here
either — Gitea is a single instance with no read replicas. Removing it
restores the pre-change exposure on that path, a non-regression.

Also fixed, each a fail-open with a fixture and an executed mutation:
  - `.creator` is type-tested before indexing. `.creator.login` on a non-object
    exits jq 5 and `set -e` took the step down after the green was posted and
    before the repair. Reproduced by both reviewers.
  - the mark is the max over NUMERIC ids only. jq orders strings above every
    number, so one `"id": "99999"` passed the numeric gate and inflated the
    mark until nothing looked newer.
  - an unusable `raced` count now repairs instead of "not acting on it".
  - `sort=highestindex` (ASC, measured) so a row inserted mid-walk appends at
    the end rather than at position 0 on a page already read. An unknown sort
    value silently falls back to DESC, so this is insurance, not load-bearing,
    and the comment says so.
  - `ph_ok`/`ph_rows` renamed off `read_existing_verdict`'s `st_ok`. No live
    bug, but a name collision in a 1400-line step.

Tests the reviews showed were missing, each proved by an executed mutation:
  - verdict beyond a SHORT page (a deliberately unfaithful truncated response
    — against a faithful double a short page is always the last, so the rule
    "terminate only on an EMPTY page" was unobservable)
  - pre-write paging failure still yields a usable mark
  - pre-write read returning nothing abandons the mark and says so
  - a TRANSIENT page failure is retried (the retry was unproven code: every
    other error mode fails on every attempt, so disarming it reddened nothing)
  - a string id cannot inflate the mark
  - a malformed `creator` row does not kill the job

Stub corrections, both the same class as the earlier `[]`-vs-`null` gap: it
served one flat list (so paging was unobservable) and computed its own-post id
with `max()` over mixed str/int, which raised TypeError and made the string-id
test pass because the DOUBLE crashed rather than because the mark was right.

Mutation matrix, all executed, each reddening exactly its named test: retry
disarmed; numeric-max reverted; partial-mark fallback removed; short-page
terminates; page-1-only walk; post-write fail-closed flipped open; jq
type-guard reverted. The unusable-count arm is unreachable by any fixture and
is annotated as such rather than claimed as proved.

Verification: `scripts/tests` 1090 passed, 2 skipped; decisions_validate and
build_decisions_catalog --check both exit 0; terminator, clamp, sort order and
id monotonicity all re-measured live on Gitea 1.27.1.

refs #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:34:07 +02:00
timothyandClaude Opus 5 4368cc8cbe fix(763): page both /statuses/{sha} reads to a validated terminator
`review-verdict.yml` read the per-POST status history twice with a single
`?limit=100` request. `limit` clamps to the server-wide `MAX_RESPONSE_ITEMS`
(measured 50), so on a head carrying more rows than the clamp both reads saw a
partial list. The high-water mark was only page 1's maximum, and — the direction
that matters — a raced human verdict beyond page 1 was invisible to the
post-write race check, leaving a forged green over a rejection.

Both reads now walk to a validated empty page (`[]` on this endpoint, measured
2026-08-28 against PR #761's 114-row head: pages 1-2 return 50, page 3 returns
14, page 4 is `[]`), never terminating on a short page, under a 20-page cap and
retrying each page once. Correctness does not depend on the cap value.

This retires #751's page-2 "assume raced" probe, which repaired every head that
outgrew one page. It fired on Renovate PR #761: an `::error::` claimed a human
verdict had been overwritten on a head carrying none, and the sticky sentinel
then refused re-exemption on every later run.

Two properties replace it. Uncertainty now fails closed at both ends — the
unreadable-history branch warned and left the exemption green while the page-2
probe repaired on the same uncertainty, one check disagreeing with itself; this
is affordable only because paging removed the common trigger. And the post-write
read must witness the job's own write: reaching a validated empty page proves the
walk finished, not that it saw a current list, so at least one row above the
pre-write mark must exist because the job just posted one.

The `::error::` now distinguishes a verdict actually found from an unverifiable
read. The sentinel description stays generic — the classification recognises it
as a fixed point, so its wording is load-bearing.

The stub gained faithful paging (50-row slices, `[]` past the end, one snapshot
per logical read so a counter mode cannot describe two different histories across
pages) and, separately, modelling of the job's own POST appearing in the history
— which it had never done, so in its world every ordinary run looked like a head
nothing had been posted to. `own-write-invisible` withholds exactly that detail
as the negative control for the currency witness.

Mutation-proved by execution, one clause at a time:
  - walk reads page 1 only -> RUNNING_PAST_PAGE_1_is_PAGED_and_the_exemption_
    STANDS, raced_verdict_on_PAGE_2_is_detected_and_repaired and both UNREADABLE
    history tests go red
  - currency-witness zero branch deleted -> CANNOT_SEE_OUR_OWN_WRITE red
  - fail-closed flipped to fail-open -> both UNREADABLE history tests red

Verification: `scripts/tests` 1085 passed, 2 skipped; decisions_validate and
build_decisions_catalog --check both exit 0.

fixes #763

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-28 17:34:07 +02:00
timothy 761e575836 fix(787): derive the dropped-step guard's scope, and reconcile its snapshot against the server (#861)
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 6s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 21s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m45s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m22s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 5m56s
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m33s
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-27 22:37:02 +00:00
timothy 8aebba4d89 fix(748): declare permissions: on all six workflows, and prove the declaration binds (#860)
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 7s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 18s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m40s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m11s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m4s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m20s
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-27 22:02:44 +00:00
timothy 45b17e58e1 fix(744,835): ci-image.yml publishes from main only; guard persist-credentials with no exemption (#857)
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 6s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 23s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m53s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m23s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m15s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m27s
Closes the push route into ci-image.yml (#744) and ships the persist-credentials guard that was waiting on it (#835).

ci-image.yml's push trigger had no branches: filter and was path-scoped to docker/ci/** AND to the workflow file itself. Gitea resolves a push workflow's definition from the pushed ref, so any branch push touching those paths ran that branch's own YAML on a docker-capable runner holding the credential that writes ersatztv:prod and the ersatztv-ci:<sha> five container: jobs execute.

Be precise about what the filter buys: it is loaded from the pushed ref like the rest of the file, so a branch that deletes it re-enables the route. This closes the DRIVE-BY case - publication as a side effect of an ordinary push - and is not a boundary against a writer who intends to run their own YAML. The wider class is #853.

The self-reference left both paths: and ci-image-pin's expected in the same change - a decided tradeoff with both prices stated, not a necessity. Branch publishing moves to workflow_dispatch, probed live: run 2340 on this branch published ersatztv-ci:43b1e45 and left :latest unchanged.

With both mechanical blockers gone, ci-image.yml's checkout takes persist-credentials: false (16 of 16) and scripts/tests/test_workflow_persist_credentials.py holds the convention with NO exemption list - git-index population, declared clause mutation re-run every suite, guard-inventory rows.

fixes #744
fixes #835

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-27 20:44:44 +00:00
timothy d68ce42fcb fix(742): inherit an h10 verdict only from an allow-listed reviewer (#850)
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 12s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 27s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m47s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m55s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m0s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m25s
`review-verdict.yml` decided whether an existing `review-verdict/h10` was worth INHERITING by
testing `.creator.login != null` — satisfied by any account's credential, including the `renovate`
bot's `RENOVATE_TOKEN`, a `write:repository` PAT that cannot be scoped down the way #697 scoped the
registry credential. The test is now membership in `H10_REVIEWERS="timothy"`, a literal in the
base-resolved definition.

The design that survived 11 cold review rounds:

* `read_existing_verdict` carries TWO flags. `ex_human` (attributable AND allow-listed) gates
  INHERITANCE; `ex_attributable` gates the last-moment re-read, which asks the opposite question and
  must stay broad. Narrowing both — the first draft — makes the job post its exemption over a
  mid-run rejection, and the post-write repair does not cover that.
* The two calls no longer compute an identical predicate, so "changed" is made explicit: the
  state/creator/description triple from the first read is snapshotted and compared.
* The allow-list governs an inherited `success` ONLY. An existing `failure` inherits on
  attributability alone, because inheriting a rejection can only withhold an exemption while
  re-deriving one can turn it green on an exempt PR. A symmetric rule was a measured fail-open.
* The post-write raced check stays broad — not because narrowing would let a rejection go green
  (a real reviewer is on the list by construction), but for the misconfiguration case.

Two mechanisms were WITHDRAWN rather than patched a third time, and both withdrawals are recorded
in `ci.exemption-provenance` so they are not re-attempted: a `::warning::` annotation that produced
three defects in three rounds, and a post-write fix whose generic `pending` would have been
re-derived anyway and which had no retry trigger.

Verified: the inheritance predicate driven against the LIVE Gitea API on a probe-named context,
both allow-list directions; every clause mutation-proven against the shipped file; `scripts/tests`
1012 passed, 2 skipped.

Follow-ups filed: #845 (post-review-verdict.sh does not check its own account is allow-listed) and
#849 (post-write verification: three routes leaving an exemption `success` over a human `failure`,
plus the retarget fence's post-POST gap, plus the prose sweep that lands with the behaviour).

fixes #742

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-27 02:52:02 +00:00
timothy 469d19852c fix(788): one declarative H10 verdict vocabulary, derived by both sides (#846)
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 6s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 25s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m34s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m17s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 5m50s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m22s
The verdict words lived in two hand-written shell copies — the `case` arms of
post-review-verdict.sh (write) and the POS_RE/NEG_RE regexes of
check-review-verdict.sh (read) — held together by nothing but a comment that had
already gone stale. scripts/lib/review-verdict-vocabulary.sh now declares them
once and both sides derive; neither script enumerates a verdict word any more.

Only the WORD SET moved. The grammar stays in check-review-verdict.sh, where
every #629 false-open actually lived.

No parity test: #774 shipped one and withdrew it after six rounds, because a
regex over shell source is not a shell parser. The proof is behavioural and
graded MUTATION — the harness restores the pre-#788 hardcoded POS_RE each run and
requires it to redden.

Enforcement is a DATA dependency, not a control-flow gate. Review round 1 found a
real fail-open in the first commit: `${#arr[@]}` is nounset-safe only for a
declared-empty array, and under `set -u` that error inside a function called as
`if ! validate` skips BOTH branches — so on the reader (deliberately no `set -e`)
an explicit BLOCKED @ head classified `positive`, exit 0. Validation now sets a
sentinel on its last line and the derived views refuse without it.

Six cold review rounds; rounds 2-6 found no fail-open across differential fuzzing
(4788 / 2612 / 7560 payloads, zero divergences from origin/main's grammar),
sentinel forgery, environment poisoning, declare -p evasion on bash 5.3 and 3.2,
path/symlink resolution and probe TOCTOU. Every malformation fails closed: reader
exit 2, writer exit 1 with nothing posted.

Also corrected: CLAUDE.md and release.review-verdict-gate both enumerated the
vocabulary without LGTM, a word the code has accepted since #629.

fixes #788

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-26 20:58:09 +00:00
timothy f2551b778e fix(746): drop the persisted checkout credential; unmask the base-ref fetches (#842)
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / CI toolchain image resolves (push) Successful in 24s
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 30s
Build ErsatzTV Image / Build & test (.NET) (push) Failing after 1m37s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m14s
Build ErsatzTV Image / Build & push image (amd64) (push) Skipped
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m1s
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-26 18:50:56 +00:00
timothy 78fc283627 docs(772): the merge gate decides on the COMBINED state, and skipped counts as green
Build ErsatzTV Image / CI toolchain image resolves (pull_request) Successful in 8s
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 15s
Build ErsatzTV Image / Delimiter ban (release path) (pull_request) Successful in 19s
PR Gates / Fix proofs (Proves trailers) (pull_request) Successful in 12s
PR Gates / Docs update reminder (pull_request) Successful in 34s
PR Gates / decisions lifecycle (pull_request) Successful in 23s
Review verdict / Set review-verdict status (pull_request_target) Successful in 11s
PR Gates / Script lint and tests (ruff + pytest) (pull_request) Successful in 5m0s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Successful in 8m47s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Successful in 6m21s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Skipped
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Successful in 5m59s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Successful in 9s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Successful in 5s
review-verdict/h10 Review-verdict: MERGEABLE @ 78fc283 (base: main)
Graded a nit and not blocked on, but it is a claim about a neighbouring subsystem that is
one notch too strong: the hook decides on the combined `.state` and its filters exclude
`skipped` (#593). Left as-is it would have taught the next reader that any non-success
context denies, which is what #593 exists to correct.

refs #772
2026-08-23 00:39:41 +02:00
timothy 8c72a5de9e docs(772): correct the twins of two claims this branch already fixed
Both remaining review findings were the same shape as the one before them, and it is the
shape this repo keeps recording: a claim corrected in one place, its copy left standing
somewhere else in the tree.

  * `docs/ci-cd.md` said "gates nothing" in the small-lane paragraph while the section 1441
    lines below said the opposite. A red preflight lands in the PR's combined status, which
    the merge gate reads (#598) — what it does not do is SKIP the jobs it diagnoses, and
    that is now the sentence in both places.
  * Two docstrings in the preflight's test file still described the disarmed script as
    warning and exiting 0. Built the mutant and ran it: it emits an error and exits 1. The
    exit code separates nothing now that an unverifiable answer fails too — the DIAGNOSTIC
    is what the mutation destroys, which is what `mutation_manifest.py` already said and
    the prose next to it contradicted.

Nits from the same pass: the admin-cron URL is quoted (`?` globs in zsh, the operator's
shell); the retry assertion's message quoted a threshold it does not use; the arm table
omitted the malformed-credential shape the code and tests both have; `buildx inspect` no
longer `--bootstrap`s a builder just to read its name, and an empty capture no longer
produces a noisy `buildx use ""`.

Swept the tree for the shape rather than the two reported lines: the surviving "exits 0"
and "could-not-tell" hits are other subsystems, or the concept named as a concept.

refs #772
2026-08-23 00:23:44 +02:00
timothy d304c8573e docs(772): state the trap, not the draft history
The advisory narrative check was right about both new passages: 'an earlier draft warned and
exited 0' and 'both cold reviews found it independently' only parse to someone who saw the
session. What a cold reader needs is that warning-and-exiting-0 is the natural way to write
this check and is wrong, and what it costs — which is now what the doc says.

refs #772
2026-08-22 23:48:52 +02:00
timothy 30640bb780 fix(772,792): close the fix-round review — the doc still described the semantics the fix reversed
The re-review's one HIGH was mine and was the obvious one to miss: the previous commit changed
the preflight so an unverifiable answer FAILS, and left a `docs/ci-cd.md` paragraph two
screens away still saying "anything else is reported as could-not-tell". That paragraph is
the one an operator reads when the job goes red, and it would have talked them into
reinstating the defect. Replaced with the full arm table, including the two rows the first
draft got wrong and why.

  * "gates nothing" was false in the way this repo has recorded before (#598): the
    merge-consent hook reads the COMBINED status, so a red preflight blocks the merge like
    any other red job. It does not SKIP the jobs it diagnoses; that is the accurate claim,
    in ci-cd.md and in the remote-state row.
  * The production retry defaults were evaluated by nothing — every test overrode both
    knobs. A test now drops the overrides and measures three attempts and a real pause, so
    editing the default to 1/0 (which would falsify the "a blip does not redden a PR"
    argument) goes red.
  * `journalctl -u gitea | grep ExecuteCleanupRules` is not a reproduction: that identifier
    reaches the log only through slow-query warnings, so an empty grep on a healthy host
    reads as "the rule never ran" — the inverse. Replaced with the admin cron API, which
    answers deterministically.
  * The recovery recipe's `docker buildx use default` needs the containerd image store to
    `--push` (both named hosts have it, checked today) and mutated the operator's builder
    selection without restoring it.
  * The stub's comment claimed both halves of real curl's transport failure mattered; only
    the exit status is observable, because `|| resp=""` discards what curl printed.
  * The empty-half credential refusal echoed the username; it needs no value at all. The
    401/403 arm aborts the remaining pins while 404 continues — deliberate, now stated.
  * `curl -u "$VAR"` puts a credential in argv, and this job runs container-free on a shared
    host. NOT fixed here: it is the shape all five `scripts/` callers already use, so fixing
    one site leaves the class and splits the codebase. Filed as #821 and named at the site.

refs #772
refs #792
2026-08-22 23:48:20 +02:00
timothy 0cf355e494 fix(772,792): address both cold reviews — an unverified pin is no longer a green job
Two independent reviewers (one cross-family) converged on the same defect, and it was the
important one: the preflight WARNED and exited 0 on every answer that was not 200 or 404,
so a missing `curl`, a moved registry or a DNS change would have left it green forever —
"the check could not run" presenting as "the pin is fine", in a script whose own header
disclaimed exactly that. Unknown answers are now retried (3x, 5s) and then FAIL, with
wording kept distinct from the deleted case because the two send an operator to different
places.

Also from the reviews:

  * An absent secret does not arrive as an unset variable. `${{ secrets.X }}:${{ secrets.Y }}`
    interpolates to ":", a perfectly non-empty and perfectly useless credential, and the
    tests covered only the unset shape. Both halves are now required, and the parametrised
    test drives the production shape.
  * HTTP 200 is not a manifest. A proxy or a login page answers 200 too, so the body is
    fetched and matched for `schemaVersion` (a shell `case`, so no jq dependency and no
    pipeline that can inject).
  * The curl stub ignored `-u` and answered 200 regardless, so deleting the real `-u` would
    have left the suite green while the live registry rejected every request. It now 401s an
    unauthenticated read, as the registry does.
  * The mutation's declared diagnostic changed with the script: now that unknown fails too,
    the exit code no longer separates "deleted" from "could not check", so the proof turns on
    the message and `expect` says so.
  * docs/ci-cd.md: `scan` is no longer the only `docker-build.yml` job on the small lane, so
    the tag-push exclusivity claim and the lane membership were both false. Fixed.
  * "Immutable" was overstated: `ci-image.yml` tags `rev-parse --short HEAD`, so a dispatch or
    a weekly no-cache run at the same HEAD republishes that tag from a rebuilt image. Stated,
    along with what the rebuild recovery does NOT restore (mutable bases and apt, so equivalent
    rather than bit-identical).
  * The recovery recipe left you in a worktree checked out at the pin commit — where the
    verify script does not exist, and where the workflow carries the pre-bump pin. It now
    keeps `$repo`, returns, and removes the worktree. It also needed BuildKit's `http = true`
    caveat: the container driver does not inherit the daemon's insecure-registries.
  * The root cause carries its evidentiary limit and its reproduction commands, and says what
    to conclude if a pin vanishes after server-management#842 lands (refuted, not re-applied).
  * The `ci.required-job-step-execution-markers` carve-out named one container-free job; there
    are two now, and the membership is what rots.
  * The decision record's `''` YAML escapes leaked into rendered prose; "status, no comment ->
    ask" is qualified (a prior positive verdict for the SAME head still satisfies condition
    (c)); "exits 1" is "exits non-zero" (usage exits 2, jq its own status, signals 128+n).

refs #772
refs #792
Decisions-Edit: yes
2026-08-22 23:25:26 +02:00
timothy 5ba442c11c fix(772,792): name the missing toolchain image, and stop a refusal leaving a verdict comment
#772 — the pinned CI toolchain image can be deleted out from under us, and when it was
(2026-08-11..13) all five `container:` jobs died at image pull, both required contexts
included, with the cause buried in each job's log. Root cause is registry-side and is now
established rather than guessed: an owner-level Gitea package cleanup rule (keep_count 15,
remove_days 1, remove_pattern `.*`, keep_pattern no 7-hex sha can match) deletes a sha tag
once 15 newer versions exist, and `ExecuteCleanupRules` ran nightly through the window. The
`ersatztv` package carries the same rule's fingerprint exactly — every sha tag older than
the 15-slot window is gone, every keep_pattern tag back to 26.3.1 survives. Version deletes
leave no audit row, so the specific run cannot be replayed; that limit is stated where the
claim is made. The durable fix belongs to the registry's repo: server-management#842.

What lands here is what a consumer of someone else's registry can do:

  * `toolchain-preflight`, a container-free job (a job consuming the image could not run to
    report it missing) resolving every pin against the registry and failing with a message
    that names the tag and the recovery. Not a `needs:` of the jobs it diagnoses — gating
    five jobs behind a checkout and one curl taxes every green run to speed up a rare red
    one, and they already fail fast.
  * Only HTTP 404 means gone. Everything else is could-not-tell, and rejected credentials
    fail rather than pass as unknown — "the check could not run" must never present as
    "the pin is fine".
  * A recovery path that does not need CI: rebuild the SAME tag from the commit it names
    and push it. The push half was verified against this registry on 2026-08-22 with a
    throwaway package (created, resolved 200, deleted).

#792 — the reported defect was the exit code, and re-measuring says that premise is false:
every no-status path already exits 1, and eight refusal modes now assert it against the real
predecessor, where they pass. The observed 0 came from the invocation, not the script. What
WAS broken is the half-state the issue describes second: the comment was written before the
status, so every refusal left `Review-verdict: MERGEABLE @ <head>` on a PR with no gating
status behind it. The two writes are now ordered status-then-comment, which makes the only
reachable half-state the safe one — a status with no comment leaves the merge hook's
condition (c) with nothing to classify, which is an `ask`. The refusals themselves are
untouched. Ordering rather than compensating deletion: an orphaned-comment cleanup needs a
Gitea call, and these refusals are usually caused by Gitea being unreachable.

Proof for the ordering is the split against origin/main's script: the 8 orphan/ordering
tests go red there, the 8 exit-code tests stay green.

fixes #772
fixes #792
Refs: server-management#842
Decisions-Edit: yes
2026-08-22 22:52:56 +02:00
timothy d4c72697f2 feat(780): commit a ruff config and enforce it in CI (#813)
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 28s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m29s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 5m54s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 5m59s
Build ErsatzTV Image / Build & push image (amd64) (push) Failing after 15s
Python lint here was a property of the operator's laptop: the global instructions
say to run ruff, no workflow ran it, and with no committed config ruff fell back
to whichever ~/.config/ruff/ruff.toml the machine happened to have.

- ruff.toml at the root, pinned ruff==0.12.11 in the script-tests job.
- Both lint steps pass an EXPLICIT population from `git ls-files` with
  `--no-force-exclude`, never `ruff check .` — an `exclude` empties a
  discovery-based run into a GREEN one (top level empties both commands, [lint]
  empties check, [format] empties format --check), and `ruff check .` over zero
  files exits 0 with only a stderr warning. Guarded by an empty-population arm.
- Tree clean: 74 findings at 706674272, 57 fixed in code, 17 per-site noqa with
  reasons inline. S105 deliberately per-site, not a directory blanket. RUF100
  selected so a suppression that suppresses nothing is itself a finding.
- pyright stays ungated; reasoning in the record.

Both steps witnessed red on the runner against the shipped bodies: run 2173 job
9176 (ruff check) and run 2170 job 9163 (ruff format --check).

Docs: new record ci.python-lint-ruff-config-committed, ci.script-tests-job
cross-ref, docs/ci-cd.md (also correcting a stale ~190-tests/~10s figure to the
measured 773 tests / ~4.5 min), docs/defect-shapes-773.md §5.2 resolved.

fixes #780

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-22 00:33:18 +00:00
timothy 6a4265d81d feat(784): a doc records the end state — generalize the no-session-narrative rule (#811)
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 40s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 8m30s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m16s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 5m52s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Failing after 17s
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-22 00:23:22 +00:00
timothyandClaude Opus 5 15d2439915 feat(794): witness a fix's test failing BEFORE the fix, and check the claim in CI (#801)
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 19s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 9m26s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m31s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m14s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m30s
Mechanises the defect that took #776 and #793 six review rounds each: a fix's test
written to confirm the fix, not to discriminate against its absence.
testing.guard-ships-with-mutation-proof generalised from guards to fixes.

prove-fix.sh runs the selector at the commit (control, must be GREEN) and again in a
separate fresh worktree with the non-test files reverted (must be RED = pytest exit 1
exactly; 2/3/4/5/143 are refused, and --continue-on-collection-errors keeps add-a-file
fixes provable). pytest's status comes from a marker written only after it returns,
because ( cd X && pytest ); rc=$? returns the SUBSHELL's status. Opt-in by a Proves:
trailer; CI checks every commit that carries one and says out loud when a PR has none.

THE TOOL REJECTED ITS OWN AUTHOR. Three commits on the branch claimed
Proves: scripts/tests/test_prove_fix.py; the job returned UNPROVEN for all three,
because reverting the script restored a working earlier version the suite also passed.
Two had been "verified" against hand-written mutants that did not match the code that
actually shipped. The tests were rewritten until both go RED against 587edbecc — whose
script emits "red without it (pytest exit 2)", a witnessed false PROVEN.

This branch deliberately carries no Proves: trailer: the only one that would pass does
so because reverting deletes prove-fix.sh, an add-file smoke check rather than a proof
of its logic. The logic proof is a clause-level mutation that re-runs the unchanged
refusal test against a mutant and witnesses it red (graded MUTATION).

fixes #794

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-16 10:24:59 +00:00
timothy cfdab63a3a fix(767): gate the release path on the delimiter ban with a prerequisite job (#770)
Build ErsatzTV Image / Delimiter ban (release path) (push) Successful in 19s
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 9m13s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m40s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m30s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m27s
The delimiter ban protecting `build`'s `Smoke + IPTV E2E` was enforced only by a pytest in `script-tests` — `on: pull_request`, not a required context — so nothing re-checked it on a `v*` tag push, which is exactly when the candidate image is published. A `scan` job now runs the ban test and `build` lists it in `needs:`, so a red `scan` skips `build` and no image is built.

Measured both directions without cutting a release: run 1928 (poisoned Smoke) → scan failed, `Build & push` skipped; run 1929 (control) → scan green, build ran.

The gate rests on three different KINDS of check, because each single kind was defeated in review: the ban test; an execution probe against a poisoned copy with all three `env:` tiers layered; and `scripts/ci-prove-ban-detects.sh`, which is not a test — it poisons the real checkout and vouches only for the ban test's `build` parametrisation failing. Eight review rounds; rounds 1-5 each found a real defect in the previous fix.

Refs: #767
Decisions-Edit: yes
Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-13 18:04:52 +00:00
timothy f9f8f65cee docs(720): name all three Komodo stacks and the label-based resolution rule (#769)
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 9m24s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 7m0s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Successful in 6m31s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 6m9s
A live Komodo stack literally named `ersatztv` owns the TEST channel, not prod. `DeployStack ersatztv` succeeds, looks healthy, and promotes nothing — silent and plausible. Extends the existing callout with all three stack names and the resolution rule: identify the prod stack by the container's `com.docker.compose.project.config_files` label, not by stack name.

Container labels re-verified live on jazz 2026-08-11; the verification date is scoped to what was actually re-measured, after review flagged the stamp as covering unchecked values.

The server-management half (the `komodo` skill still uses the dead `media-servers` as its worked deploy target) cannot land in this repo and is tracked as server-management#743. #720's box 2 was re-scoped to that hand-off rather than ticked as though the skill were fixed.

fixes #720

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-11 19:26:07 +00:00
timothy 884ac8a7e9 fix(756): extend the dropped-step guard to docker-build.yml's required jobs, where a drop is fail-OPEN (#768)
Build ErsatzTV Image / Build & test (.NET) (push) Successful in 9m0s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (push) Successful in 6m24s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (push) Failing after 6m8s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (push) Skipped
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (push) Skipped
Build ErsatzTV Image / Build & push image (amd64) (push) Successful in 4m42s
A `run:` body the runner declines to interpolate is dropped, and the job still
concludes `success` (#751). #751 fixed that in review-verdict.yml, where the
failure is fail-CLOSED. This closes the two places where it is fail-OPEN:
`Build & test (.NET)` and `EF migration integrity (SQLite + MySql)` are the
other two required contexts on `main`, so a dropped step there sends a required
check green having done no work.

Per-STEP markers, not per-job as proposed: a marker on the first step only
proves the job began, while the drop that costs something is `Test`, `Build` or
a migration replay. The trailing guard carries no `if:` — with a dozen steps,
`always()` would announce a false "these steps never executed" on every ordinary
red build; the default `success()` is correct because guard-skipped implies
job-red. Plus a ban on the raw `${{` opener in `test`, `migrations` and `build`,
which makes the class unreachable rather than merely caught. `build` is included
because its Smoke step runs AFTER the image is pushed.

Measured live on the build lane in both directions: probe #765 (drop caught,
sole failure in the job) and #766 (a failing continue-on-error step does not
skip the guard). 510 tests, 30 mutations killed across two harnesses, five cold
review rounds across two model families.

Residual tracked as #767: the `build` ban is review-time only, not fail-closed
on the release path.

fixes #756

Co-authored-by: Timothy <timothy@noreply.gitea.tblindustries.be>
2026-08-10 23:35:08 +00:00
timothyandClaude Opus 5 e133c11fde fix(751): rebase onto #760, close the fail-OPEN twin, and retire four claims that had rotted
Fourth cold review round: no Blocker, no new path to a green `review-verdict/h10` on an
unreviewed head, and it independently re-measured 14 claims in the diff. It also caught
that this branch was about to revert someone else's work, and found the one remaining
place where the nil-slice/clamp lesson had not been applied.

REBASED ONTO 9881d1ff8 (#760), which landed while this was in review. The tell was the
one CLAUDE.md documents: `git diff origin/main HEAD` showed deletions I never made —
`docs/decisions/records/mcp/tool-schema-openapi-parity.md` and edits to `docs/mcp.md`.
Pushing would have reverted them. The generated catalog was regenerated rather than
trusted to the rebase, and verified to carry BOTH records.

THE FAIL-OPEN TWIN, one function further on than the last round reached.
`/statuses/{sha}?limit=100` is read twice — for the high-water mark and for the
post-write race check — and neither pages, while `limit` clamps to 50. So "no raced row
on page 1" does not establish "no race": a human `BLOCKED` landing in the write window
can sit on a page the job never reads, leaving a forged green over a rejection. This is
the ONE path in the design whose failure direction is toward SUCCESS.

Measured rather than argued: a probe head reached 33 rows after ~5 runs against a cap of
50, and the ordering is only coarsely newest-first (`33,32,31,30,28,29,27,…`), so a few
CI reruns reach it and the row's position cannot be relied on — which this workflow's own
comment already disclaimed. That comment ALSO claimed order-independence flatly; false
once the page clamps, so it now says what actually holds and what saves us.

The mitigation is conservative rather than complete: if page 1 shows no race, page 2 is
read, and any rows there — or an unreadable page 2 — count as "assume raced" and repair
to `pending`. Uncertainty resolves to a stall a reviewer can clear, never to leaving
green. Real paging of both reads, including the high-water mark, is #763.

A THIRD empty shape turned up while modelling it: `/statuses/{sha}` past the end returns
`[]`, where `/commits/{sha}/status` returns `{"statuses": null}` and the timeline returns
bare `null`. Three endpoints, three shapes, one server. The code tolerates both here
because guessing per endpoint has now been wrong twice.

MY OWN COVERAGE GAP, found by mutation rather than by reading: inverting the
unreadable-history-page-2 branch reddened NOTHING. Now tested both ways. Same class as
the two untested refuse branches the review flagged, which are also covered now.

FOUR CLAIMS RETIRED, all of the shape this issue is about — text that reads as checked
and is not:

* "18 tests fail" for the corrected-double mutation is 21 now, because rounds 3-4 added
  three fence-dependent tests. Broke a number while documenting broken numbers. Both
  citations now give the range and lead with the invariant.
* "measured: 4, 2, 9, 5, 10" first-page timeline events are 7, 5, 9, 6, 10 today.
  Timelines grow; the figures are gone and the invariant stated instead — a PR is created
  by a push, and a push is an event, so page 1 is never empty.
* The strict test's docstring said "RAW TEXT" while the test reads parsed `run:` scalars,
  with a dead `raw =` assignment left behind (a new ruff F841).
* `len(bodies) >= 3` had zero slack: deleting the optional jq-preflight step reddened it
  with a message asserting the classifier had not been examined, which was untrue. The
  length assertion already carries the property, so the count only needs to be non-empty.

Also: dead `_workflow_expression_fields_text` removed; assertion C's regex now catches
`function foo {` as well as `foo() {`; the page-2 refusal says a human verdict clears it.

Verification: 460 green. Five more mutations as intended — deleting the history page-2
check (red), accepting an unreadable one (red, after the coverage gap was closed),
accepting a garbage page 2 in read_existing_verdict (red), hiding the marker write behind
`function mk {` (red), and the earlier twenty-one still hold. Live re-probe on this body
follows.

Refs: #751
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-10 19:42:58 +02:00
timothyandClaude Opus 5 951dae26a9 fix(751): the truncation guard I added was DEAD CODE — the page cap is 50, not 100
Third review round, cut short by a transport hang after ~11h, but it had already found
the thing that mattered: the guard added last round could never fire.

`read_existing_verdict` asks for `limit=100` and refused when the page came back with
100 rows. This instance caps `limit` at the server-wide `MAX_RESPONSE_ITEMS`, MEASURED
AT 50 — `/issues?limit=100` returns 50 items. A response can therefore never carry 100
rows, so the comparison was unreachable and the hole it was written for was still open.

The sting is that the repo already knew. `scripts/pr-changed-files.sh`, two test files
and `ci.script-tests-job` all document that Gitea caps `limit` at `MAX_RESPONSE_ITEMS`
(50 in the PR #619 measurement). The review found it by grepping this codebase, not
upstream. Writing a guard against a constant the repo had already measured as wrong is
the same failure as the unfaithful test double two rounds ago: a number believed rather
than checked.

So this is now the THIRD guard for one hole, and the first two were both no-ops:

  1. `.statuses | length` vs `.total_count` — `total_count` is the count for the PAGE
     RETURNED, not the commit (`?limit=1` on a 6-context head gives
     `len=1, total_count=1`). Equal by construction.
  2. "refuse when the page is full at 100" — dead code, as above.
  3. Ask the server. Completeness is needed ONLY to justify "no verdict exists on this
     head", so when the row is absent from page 1 the job reads PAGE 2, and refuses if
     it carries anything. Cap-independent: no reconfiguration re-breaks it, and nothing
     is hardcoded that a measurement could contradict.

Measured to make sure page 2 is real rather than assumed: `?limit=3&page=2` on
3aed43c6 returns three further rows, and `page=9` returns the same `statuses: null`
terminator the timeline uses.

The probe is skipped when the row IS on page 1, because there is nothing to learn — the
combined endpoint returns the latest status per CONTEXT, so a context cannot recur on a
later page.

TEST-DOUBLE FIDELITY, again the fiddly part. The stub now honours `page`, and that guard
had to go BEFORE the read-counting modes: `appears-on-read:N` counts how many times the
job has LOOKED at the status, and the completeness probe is part of the same look, not a
further one. Letting it increment those counters shifted "the verdict appears on read N"
by one and broke three mid-run-race tests — a false red that would have been easy to
"fix" by adjusting the expected counts, which would have quietly destroyed what those
three tests measure.

Verification: 455 green. Four more mutations, each as intended — deleting the probe
(red), accepting a non-empty page 2 (red), refusing even on an EMPTY page 2 (red, the
deadlock control), and reverting the twin `statuses: null` gate (48 red). Twenty-one
mutations across four rounds.

Refs: #751
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-10 19:22:50 +02:00
timothyandClaude Opus 5 46ec532745 fix(751): re-review round — a truncation hole, and the tests that closed findings needed closing
Cross-family re-review of the previous fix commit. It did NOT pass, and it was right
not to: the round that fixed the reviewers' findings introduced two of its own, both in
the tests written to close them. That is this file's recurring shape, and it is the
reason the fix commit gets re-reviewed rather than the initial diff only.

TRUNCATION (High). `read_existing_verdict` asks for 100 statuses and never checked
whether the page was full. If a head ever carried more contexts than that, an existing
`review-verdict/h10` could fall off page 1, the job would conclude no verdict exists,
and it could post an exemption `success` over a human `failure` — the worst thing this
gate can do. Six contexts exist today, so this guards a future shape, not a live bug.

BUT THE PROPOSED GUARD WAS A NO-OP, and measuring is what showed it. The review asked
for `.statuses | length` compared against `.total_count`. On this instance `total_count`
is the count for the PAGE RETURNED, not for the commit: on 3aed43c6 (6 contexts),
`?limit=1` gives `len=1, total_count=1` and `?limit=3` gives `len=3, total_count=3`.
The two are equal by construction, so that check would have read as a completeness
proof while proving nothing — and it would have been the second guard in this file to
look like a check and not be one. What IS observable is a page at the requested limit,
which means "maybe more", so that is now treated as unreadable: post nothing, leave the
required check absent. The stub mirrors the per-page `total_count` deliberately, so the
new test cannot pass for the wrong reason either.

THE TESTS THAT CLOSED THE LAST ROUND'S FINDINGS:

* The behavioural guard test — added to answer "a bare `exit 1` substring is satisfiable
  by dead code" — extracted the two marker lines BY TEXT and ran them alone. That
  passes even if the write is moved into a function nobody calls: the extractor finds
  the text, runs it at top level, the marker appears, and the test reports the guard
  proven while production writes no marker. It now executes the classify body's real
  PREFIX down to and including the write, which reproduces the production control flow
  instead of a reconstruction of it. Mutation: move the write into an uncalled function
  -> RED (it previously passed).
* The anti-vacuity check — added to replace an over-broad assertion — hand-counted
  `run:` keys with a regex that only matched an indented `run:` starting `|` or `>`. It
  false-redded legal spellings (`- run: |`, a single-line `run: echo ok`) and could
  count a `run: |` sitting inside a heredoc. Hand-parsing YAML to validate a YAML parse
  is the wrong shape: it adds a second, worse parser whose every disagreement is a
  false alarm, and a red here blocks all merges. Now asserted on CONTENT — the walk
  reached >=3 bodies and one over 5000 chars.

FALSE RED, THIRD INSTANCE IN THIS FILE. The repo-wide expression test scanned raw file
text, so a delimiter in an inert top-level YAML comment redded the repo even though the
runner never evaluates it. It now scans PARSED scalars: PyYAML drops YAML comments,
while a `run:` body is itself a scalar and keeps its SHELL comments — which is exactly
the distinction that matters, since inside a `run:` scalar a comment is not inert.
Verified in both directions: an inert top-level comment passes, the same payload in a
run-body comment still reds.

Also: the `total_count` zero check now requires the JSON TYPE to be number — `jq -r`
renders `0` and `"0"` identically, so a text compare accepted a corrupted
`"total_count": "0"` as "no statuses".

Verification: 455 green. Six further mutations, each landing as intended — the uncalled
function (red), an inert YAML comment (PASSES, no false red), the same payload in a
run-body comment (red), accepting a full status page (red), comparing total_count as
text (red), and breaking the YAML walk's job key (red). Seventeen mutations across the
three rounds.

Re-probe of both live controls follows on this body; the previous probe evidence was
taken before this commit and no longer describes what would merge.

Refs: #751
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-10 19:22:50 +02:00
timothyandClaude Opus 5 edd8d3d9c9 fix(751): review round — the twin null-shape, a governance self-exemption, and four over-claims
Two independent cold reviews (a cross-family GPT-5.6 pass and an isolated Opus pass).
Neither found a path to a green `review-verdict/h10` on an unreviewed head. Both found
real defects BESIDE the fix, which is the failure mode this file keeps producing.

THE TWIN, and the reason not to trust "I fixed the two I could see". `GET
/commits/{sha}/status` returns `statuses: null` — not `[]` — for a head with no
statuses yet: `{"state":"pending","total_count":0,"statuses":null}`, measured on PR
#739's head. `read_existing_verdict` gated on `.statuses | type == "array"` and took
its `exit 1` path, posting NOTHING. Fail-closed, but the user-visible outcome is the
one this issue is about: an exempt PR with no status and, since #743, no bypass. Its
double printed `{"statuses": []}` at all three no-verdict sites, so that branch was
unreachable in the suite — the same unfaithful-double story as the timeline, one
function over. `null` is accepted only when `total_count` is 0, so a body that merely
lost its array is still refused and an existing verdict is still protected. Swept
`scripts/pr-changed-files.sh` too: `pulls/{n}/files` returns `[]`, unaffected. The
generalisable rule is that a nil Go slice serialises to `null`, so every list-shaped
field on this API is suspect and only a per-endpoint measurement settles it.

A GOVERNANCE SELF-EXEMPTION, reachable again precisely because this change works.
`DOCS_ONLY` matched `CLAUDE.md` and `AGENTS.md` — the documents that DEFINE the
completion protocol, the merge-consent convention and the H10 rule. Driving the real
classify body with a lone `CLAUDE.md` change produced `review-verdict/h10=success`.
Protecting `.claude/` while the file specifying what it enforces stayed exemptible is
the same self-exemption the header rules out, one directory over. Both added to
PROTECTED; `README.md` deliberately not (ordinary prose, no enforcement).

FOUR OVER-CLAIMS, corrected rather than defended:

* The repo-wide expression test does NOT catch "any payload that cannot evaluate".
  It checks the HEAD TOKEN of each dotted path. `${{ github.ref == }}` and
  `${{ …head.sha + }}` pass; so does a renamed output, since tokens after the first
  are skipped by design. Claim corrected in the docstring, `docs/ci-cd.md` and the
  record. The test is kept permissive on purpose: a red here blocks every merge.
* The strict test's anti-vacuity half banned expressions ANYWHERE outside
  `with:`/`env:`, so the standard `if: ${{ always() }}` spelling and even a delimiter
  in an inert top-level comment went red — a guard more dangerous than its target.
  Replaced with the honest property: the YAML walk saw every `run:` body it declares.
* The `if:` assertion demanded the bare `always()` exactly; now normalised, since the
  wrapped form is identical to the runner.
* `exit 1` was matched anywhere in the guard body, so an unreachable
  `if false; then exit 1; fi` satisfied it while the real branch said `exit 0`. Now
  required INSIDE the missing-marker branch — and the new behavioural test settles it
  properly by EXECUTING the guard body both ways.
* The record asserted a repo-wide obligation to guard consequential steps. It is not
  repo-wide: `docker-build.yml`'s `test`/`migrations` are also required contexts and a
  dropped step there is fail-OPEN (green having done no work), strictly worse than
  here. Scoped to this file and tracked as #756 rather than asserted as done.

Also: comments in both files still said it was unestablished whether a later step runs
after a drop — runs 1863/1866 established it, so they now record the measurement; a
cited test name that never existed; `kind` leaked to global scope; a mangled comment
wrap; and an already-false "one event on page 1".

Hardening of my own: `null` now counts as exhaustion only from page 2 ON. Every real
PR's first page carries events (4, 2, 9, 5, 10 across #752/#753/#749/#739/#717), so a
terminator on page 1 means no page was ever read, and certifying "no retarget" from a
response we cannot explain is the one thing the fence exists to refuse. Narrows rather
than closes it: a wrong `null` on page 3 still reads as exhaustion.

Verification: 137 in this file / 452 total green; ELEVEN mutations each red —
reintroducing the defect, deleting the guard, deleting the marker write, removing
`if: always()`, `exit 1`→`exit 0`, a delimiter in the guard body, the fence gate (20
red), the TWIN gate (70 red), dropping the governance paths, accepting a null first
page, and diverging the marker path between the two steps.

Refs: #751
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-10 19:22:50 +02:00
timothyandClaude Opus 5 40b3747434 fix(751): the fence never trusted its count — a page past the end is null, not []
The scratch-base probe found a SECOND, independent reason `review-verdict/h10` was
never posted automatically. Fixing the dropped step alone would NOT have restored the
exemptions.

`count_retargets` pages `/issues/{n}/timeline` and trusts its count only on a
validated empty page, gated on `type == "array"`. But a page past the end of that
endpoint is the JSON value `null` — measured at Gitea 1.27.1 on PR #752, four bytes —
so the real terminator read as UNREADABLE. The walk never reached a validated empty
page, `rt_ok` was never `yes` for ANY pull request, and the fence therefore withheld
EVERY exemption `success`. Renovate and docs-only PRs got no status at all: the same
user-visible outcome as the dropped step, by a completely unrelated route.

The instance is not consistent between endpoints — `/issues/{n}/comments` returns `[]`
when empty — so both shapes terminate the walk now, and the regression test is
parameterised over both. The type is read as a VALUE (`case` over `jq -r 'type'`)
rather than through `jq -e`, whose exit-status semantics already bit this workflow at
jq 1.6 (#647).

TWO REASONS THIS LOOKED DELIBERATE RATHER THAN BROKEN, both worth generalising:

* It had never run. This fence shipped in 8f6d4f443 — the same commit whose prose
  comment stopped the classify step executing at all. Merging a guard and first
  executing it are different events, and only the second tells you anything.
* The test double asserted the wrong shape while claiming to be measured. Its comment
  read "Real shapes, measured on this instance and deliberately mirrored" and it
  printed `[]` past the end, so the `array`-only gate was never exercised by the suite
  either. Correcting the double and restoring the old gate turns 18 TESTS RED — every
  one of them had been green for the wrong reason. A fidelity claim in a double is an
  assertion and it decays like any other.

The new test asserts the POSTED STATUS, not the log: on the real probe run the log
said `Decision: state=success` and the job still posted nothing, so the decision and
the write are separate events and only the write is what a merge reads.

Also here, both found while editing this code:

* `ci.verdict-write-retarget-fence` stated this as a narrow residual ("a timeline over
  the 20-page cap can never be exempted") when the behaviour was universal. Corrected
  in place rather than left as a checked-looking claim that talks the next reader out
  of verifying.
* The workflow cited `ci.paged-endpoint-completeness`, a key that has never existed as
  a record anywhere. Repointed at the record that actually owns this walk.

Marker hardening from the probe: `RUNNER_TEMP` is `/tmp` on this runner, not a private
per-job directory, so the start marker is now keyed on the run id and attempt. The
lane starts a container per job today, which makes a fixed name fresh in practice, but
that is a property of the lane and a stale marker would make the guard PASS on a run
whose step was dropped — the exact silent pass it exists to remove.

Verification: 446 passed; M7 (revert only the type gate, keep the corrected double) →
18 red. Probe evidence in the issue.

Refs: #751
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-10 19:22:50 +02:00
timothyandClaude Opus 5 f822e4737c docs(743): label the second attested claim, close the survivor list, state the rule in CLAUDE.md
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 14s
PR Gates / Docs update reminder (pull_request) Successful in 34s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Successful in 40s
Review verdict / Set review-verdict status (pull_request_target) Successful in 8s
PR Gates / decisions lifecycle (pull_request) Successful in 23s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Successful in 24s
PR Gates / Script tests (pytest) (pull_request) Successful in 1m52s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Successful in 6m13s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Successful in 19m29s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Successful in 21m25s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Skipped
review-verdict/h10 Review-verdict: MERGEABLE @ f822e47 (base: main)
Round 3 returned MERGEABLE with three LOW documentation findings. Batched
before posting the verdict, since a new sha voids both the CI run and the
verdict.

- `ci-cd.md` labelled the unprobed half of the `enable_push` bullet but stated
  the `block_admin_merge_override` counterfactual flatly one bullet below —
  the same measured-vs-attested flattening round 2 fixed, one site over. Now
  labelled, with why it was not probed (verifying it means merging an
  unreviewed PR).
- `release.verdict-status-check` said "what survives is the forgery list
  above". That record's job is enumerating survivors, so an unqualified "what
  survives is X" reads as exhaustive — and it omitted the admin residual, which
  is a SKIP route rather than a forgery one. Added.
- `CLAUDE.md` never learned the rule. It is the always-read surface, and it
  still framed a direct `git push origin main` as a live path while describing
  a docs-only *push* exemption for a push the server now refuses. My corpus
  sweep covered `docs/` and missed the file that carries the docs-update rule.

Note on what remains unverified rather than closed: neither direction of
`block_admin_merge_override` was measured, and whether Gitea treats an ABSENT
required context as blocking (versus satisfied) is asserted by our docs but
not proven — the combined status on this PR reads `success` with
`review-verdict/h10` absent. Both belong to #747's re-verification sweep.

Verification: 441/441 script tests; decisions-validate OK.

refs #743

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 00:35:41 +02:00
timothyandClaude Opus 5 6af65ba5c5 fix(743): re-tense the third stale site, and pin the two surviving mutants
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 35s
PR Gates / Docs update reminder (pull_request) Successful in 42s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Successful in 1m23s
PR Gates / decisions lifecycle (pull_request) Successful in 1m25s
PR Gates / Script tests (pytest) (pull_request) Successful in 1m58s
Review verdict / Set review-verdict status (pull_request_target) Successful in 7s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Successful in 27s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Successful in 8m52s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Successful in 16m42s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Successful in 20m0s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Skipped
Round 2 of review. One blocking finding, and it is the same defect class as
round 1's: a present-tense claim that this PR falsified.

`release.verdict-status-check` — the record ABOUT the h10 status check — still
said "direct pushes to `main` are server-side permitted, so the gate can be
skipped without forging anything". A reader resolving that key from the catalog
would conclude the control does not exist. Round 1 corrected `ci-cd.md` and
`ci.actions-credential-scoping` and I stopped at the two sites I had edited,
instead of sweeping the corpus by SUBJECT. Swept properly this time
(`server-side permitted`, `bypassable`, `without forging`, `push whitelist`,
`enable_push`): this was the only remaining stale site.

Test gaps the reviewer found by mutation testing, now closed. Both mutants
SURVIVED the suite as shipped — the round-1 fixes were correct but unpinned:

- dropping `|| [ -n "${_h11_local_ref:-}" ]` → an unterminated final line is
  dropped. Two directions, and the dangerous one is not the obvious one: a
  dropped *branch* line leaves only tag refs and grants the exemption to a push
  containing a branch. Both pinned.
- dropping `[ -t 0 ] ||` → the hook hangs forever on an interactive run. Pinned
  with a real pty and an explicit timeout, so a regression fails cleanly rather
  than hanging a CI job. Verified the mutant is killed by exactly that test
  (and that it dies via the timeout, 32s).

Also from review, non-blocking:

- `ci-cd.md:951` cited `enable_push: false` alone as what closed #743 — the
  precise thing the new record says never to do, since the force-merge route
  also skipped the gate with no forgery. Now cites both fields.
- `ci-cd.md` flattened measured and source-attested into one 403: only the
  contents API was probed; the web editor/upload/apply-patch paths share the
  predicate but were not. Separated.
- `format-as-you-touch-rebase` still said "the documented sequence" and
  "always" for the release-cut behind-ness. `docs/ci-cd.md` documents the tag
  step, not the release-notes-PR flow, and the frequency is attested by one
  observed cut. Attributed to #719 instead.
- Documented the operator recovery path. `block_admin_merge_override: true`
  removes the `force_merge` escape that used to unstick a wrongly-red required
  context — that escape WAS the bypass, so it is gone by design, and the
  recovery (fix the status; last resort PATCH the field, merge, set it back)
  needed to be written down rather than left implicit in a residual.

Verification: 441/441 script tests; decisions-validate OK; PyYAML parses all
193 records; both mutants confirmed killed and the hook restored byte-identical.

fixes #719

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 00:10:45 +02:00
timothyandClaude Opus 5 6d80343320 fix(743): close the admin force-merge bypass; the push half alone was not enough
Independent review found the record repeated on the merge path exactly the
mistake it had just diagnosed on the push path.

The push argument was: a whitelist naming `timothy` closes nothing, because
`timothy` is the identity every credential already holds. The merge path had
the identical shape and went unchecked — `block_admin_merge_override` defaults
to `false`, so `CanBypassBranchProtection` returns true for a repo admin and
`POST /pulls/{n}/merge` with `force_merge: true` merges straight past a missing
or red `review-verdict/h10`. One API call, no forgery, no PATCH — cheaper than
the push route this change had just removed.

So `enable_push: false` alone did NOT make the gate load-bearing, which is
what the record's headline sentence claimed. `main` now carries both fields;
they are one control and neither is citable alone.

An admin-shaped control that exempts the only admin exempts everybody.

Other review findings addressed:

- H11's owning record (`release.format-as-you-touch-rebase`) now documents the
  #719 tag-only carve-out. It is a narrowing of an existing convention, so it
  amends that record rather than adding a new one — including the two details
  that are easy to regress (the .husky/pre-push forwarding, without which the
  exemption is dead code the unit tests still pass over; and the at-least-one-
  ref guard against vacuous exemption).
- The record now states which write surfaces were enumerated and how each was
  established — contents-API refusal is MEASURED here (403 `user cannot commit
  to repo`), apply-patch/revert/cherry-pick are source-attested only. The
  admin force-merge bypass is likewise marked source-attested, not probed:
  probing it means merging an unreviewed PR.
- prepush-rebase-check.sh: process a final ref line with no trailing newline
  (previously dropped, which silently reinstated the #719 block), and skip the
  stdin read on a TTY so an interactive run does not hang.
- Corrected a citation the review caught: docs/ci-cd.md documents the tag step,
  not a release-notes-PR flow. Cite #719 for the observed flow instead.

Also fixed a frontmatter break this round introduced: a `: ` inside the
unquoted `rule:` scalar. PyYAML rejected it while the dependency-free reader
accepted it, so only `scripts/tests` caught it.

Verification: 438/438 script tests pass; decisions-validate OK; PyYAML parses
all three touched records.

refs #743 #719

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-05 23:52:28 +02:00
timothyandClaude Opus 5 691a7acc77 fix(743): disable direct pushes to main so review-verdict/h10 is on the only path to main
Gitea evaluates `status_check_contexts` when it MERGES a PR. A direct
`git push origin HEAD:main` never consults them, so the whole h10 gate was
skippable with no forgery — strictly cheaper than every route enumerated in
#697. `main` now carries `enable_push: false`.

Measured on this instance (Gitea 1.27.1) against a throwaway `probe-743-*`
rule rather than against `main`:

  enable_push: false                      -> push by timothy (site admin)
                                             REFUSED, pre-receive hook declined
  enable_push_whitelist + ["timothy"]     -> identical push SUCCEEDED

That second line is why this is a DISABLE and not a whitelist: #743 offered the
two as interchangeable, but the only write accounts here are `timothy` (site
admin) and `renovate`, and every credential in the threat model — agent
sessions, PATs, the injected GITEA_TOKEN — acts as `timothy`. A whitelist
naming `timothy` would have ticked the box and closed nothing.

Then demonstrated on `main` itself, per the issue's Done-when: a direct push
was refused, and a tag-only push from the same worktree succeeded (tags are
governed by `tag_protections`, which is empty). The release cut is unaffected.

What this closes: the write-only credential routes — the injected GITEA_TOKEN,
RENOVATE_TOKEN, any non-admin collaborator PAT. What it does NOT close: an
admin credential can PATCH the protection off, push, and restore it. Recorded
as an accepted residual rather than implied to be covered.

Also corrects two claims the probe contradicted, and one that the mid-session
Gitea upgrade (1.25.4 -> 1.27.1) invalidated:

- ci-cd.md and ci.actions-credential-scoping both said "a push whitelist would
  close more of this class than the 1.26 upgrade". The whitelist form closes
  nothing here; corrected in place.
- ci.actions-credential-scoping's rule said "do NOT add a `permissions:` key
  while this instance is below Gitea 1.26.0". That precondition no longer
  holds at 1.27.1, so the directive now misleads. Corrected — while noting the
  consequence is still UNVERIFIED: `/api/v1/settings/actions` 404s at 1.27.1,
  so whether `permissions:` binds here was not probed. The upgrade alone is
  not evidence the constraint works.
- That record's 1.25.4 measurements are now dated, not current. Flagged as
  such rather than silently re-pinned to a version they were never taken on.

#743's fourth box (docker-build.yml `persist-credentials: false`) is decided
in the record and deliberately not done here: two of its checkout steps run
`git fetch ... || true` feeding the changed-file skip logic, so a credential
regression would be silent rather than loud. Drop the `|| true` masking first.

fixes #743

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-05 23:31:45 +02:00
timothyandClaude Opus 5 b91939e5c4 fix(697): correct the overclaims three adversarial review rounds found
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 22s
PR Gates / Docs update reminder (pull_request) Successful in 26s
PR Gates / decisions lifecycle (pull_request) Successful in 41s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Successful in 56s
review-verdict/h10 Review-verdict: MERGEABLE @ b91939e (base: main)
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Successful in 59s
PR Gates / Script tests (pytest) (pull_request) Successful in 1m56s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Successful in 18m6s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Successful in 20m3s
Review verdict / Set review-verdict status (pull_request_target) Successful in 5s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Successful in 9m4s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Has been skipped
Round 1 BLOCKED (1 Blocker, 4 High, 3 Medium, 2 Low); round 2 BLOCKED on the fix
(1 Blocker, 2 High, 4 Medium, 2 Low); round 3 BLOCKED on one Medium. Every
finding re-verified against the live instance before acting.

ROUND 2 — the blocker was self-inflicted and the local gate could not see it.
Adding `branches: [main]` to ci-image.yml re-points `ci-image-pin`'s `expected`
at the editing commit, staling all five `container:` pins and failing that
BLOCKING job — for a change altering zero bytes of the toolchain image.
Reproduced: expected=ed9dd6254 vs pins=32747a0. Reverted here (the commit was
amended, so no commit on the branch touches that path) and filed as #744.

That edit had also FALSIFIED its own justification: branch publishing IS
load-bearing — docs/ci-cd.md documents the rebase-recovery flow as "let
ci-image.yml publish :<short sha>, then bump the pin", which is how you satisfy
ci-image-pin from inside a PR. Reverting also keeps three trigger descriptions
true (ci-cd.md:1043, the recovery flow, pr-checks.yml's escape-hatch comment).

Also fixed:
  - gate-trigger-base-resolved.md was the file round 1's fix did not touch, and
    still said "no workflow route retains human provenance" — false, since a
    PR-added workflow can reference RENOVATE_TOKEN. Its `rule:` also kept the
    race framing, and `rule:` is what the catalog and MemPalace mirror.
  - `mechanics:` claimed "independent review confirmed no CI consumption breaks".
    It confirmed no such thing. Round 3 then caught the REPLACEMENT sentence
    making the same class of error: only the `container:` pull is exercised by a
    PR, because `build` carries `if: github.event_name != 'pull_request'` and
    cache-to/cache-from live only there. Those and the base-image pull first run
    on the post-merge push to main — a wrong inference reddens main, not the PR.
  - A fourth surviving route was unnamed: docker-build.yml publishes :prod from a
    `v*` tag push and a tag may point at any commit (tag protections are empty).
    "three surviving routes" became "at least these" — a count reads as complete.
  - Unmarked inferences, a "three later sections" that undercounted four, a
    dangling "the two items below", and a #744 rationale that stated the pin toll
    without its documented remedy.

Local gate: 432 script tests pass; `decisions_validate.py --base origin/main
--head HEAD` and `build_decisions_catalog.py --check` both exit 0; ci-image-pin
recomputed by hand and matching the pinned commit. The record is 62 prose lines
against a 60-line ceiling that is a `::warning::` by design (#520) — the blocking
constraint is the 2-25% minority band, currently 10.8%.

Refs #697, #742, #743, #744.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-05 21:23:43 +02:00
timothyandClaude Opus 5 e298bb291e fix(697): scope CI's registry credential so head-resolved workflows cannot forge review-verdict/h10
`REGISTRY_USER`/`REGISTRY_PASSWORD` were the ADMIN account's basic auth, and
`docker-build.yml` triggers on `pull_request` — head-resolved — so a PR's own
code was handed instance-admin credentials. Basic auth carries no scope, so the
same secret that pushes an image administers every repo on the instance and can
POST `review-verdict/h10`, the required context that makes merge-consent derived
rather than assertable. Refs #697.

Fixed at the credential, not the triggers: patching triggers enumerates
instances of "a ref-resolved workflow obtains status-capable credentials", and
adding a new workflow file is itself a route. `REGISTRY_PASSWORD` is now a PAT
scoped `write:package` + `read:repository`.

Verified on Gitea 1.25.4, not inferred:
  - registry push of a probe tag SUCCEEDED (cleaned up, confirmed 404)
  - GET /commits/{sha}/status SUCCEEDED (what ci-detect-already-validated.sh does)
  - POST /statuses/{sha} REFUSED, HTTP 403:
    required=[write:repository], token scope=write:package,read:repository

Scope of what this closes, stated without overclaim. It closes the instance-wide
admin escalation and that credential's durable forgery route — durable because a
status POSTed with a USER credential carries a real `creator` and is inherited as
a human verdict, while an Actions job's carries `creator: null` and is re-derived.
It does NOT close the class. Three things survive it:

  - `RENOVATE_TOKEN` is a `write:repository` PAT of a real bot account in the
    SAME secret store, so it also posts with non-null `creator`. It cannot be
    scoped down (Renovate needs repo write), and secrets are a per-repo store
    that any PR-added workflow can reference. Closing this needs the provenance
    check tightened to an allow-list of approved reviewers.
  - Every job still receives a write-capable `GITEA_TOKEN`. `permissions:` YAML
    is a no-op before Gitea 1.26.0 and no `app.ini` lever exists at any version;
    only >=1.26 with the Actions default set to Restricted binds it.
    Tracked in server-management#714.
  - Branch protection binds the context NAME, not its issuer, so any write-scoped
    personal token forges the status with genuine human provenance. Unfixable
    in-repo. `h10` is a process guard, not a security boundary against push access.

Auditing the secret STORE rather than the workflow set also surfaced
`SERVERMGMT_DEPLOY_KEY`, still present though the `bump-prod-compose` job that
used it was removed in 1b5efd7b9 — an SSH deploy key to another repo, obtainable
by any PR-added workflow, with no remaining benefit.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-05 20:34:34 +02:00
timothy 5fa672e2e5 docs(release): record the v26.14.0 release notes
Adds the v26.14.0 row to the release table. This is the commit the v26.14.0 tag
will be pushed onto, matching how v26.13.0 was cut (#716).

Contents since v26.13.0: the #726 bitmap-subtitle -readrate starvation fix
(headline), the #674/#688 decisions-validator PyYAML cross-check, the
#706/#707/#711 review-verdict raced-sentinel fix, and two Renovate bumps.

Replaces the branch behind PR #738, which never received a pull_request CI run
across six trigger attempts (two pushes, a force-push after rebase, a
close/reopen, a body edit, and a spaced push on an idle queue). A
workflow_dispatch run did complete green but writes no commit statuses, so it
cannot satisfy the required checks. Opening a fresh PR produces an `opened`
event rather than a synchronize, which is a different path.

No [skip ci] token -- this branch's merge commit is the v26.14.0 tag target.
2026-08-05 00:44:00 +02:00
timothyandClaude Opus 5 0ff9671393 fix(688): pin the minority band's constants and inclusivity; two prose corrections
Review round 7. Its adjudication of the round-6 dispute went the branch's way — measured
at `f394d6ce`, the sha the record actually cites, the #620-era distribution is n=167,
min 2, median 26, p90 52. Round 6 had measured `fefd11dff` (p90 57), a different tree.
The number stays as written.

BLOCKING FINDING: the 2%/25% constants and their inclusive boundaries were not pinned at
all. Mutating 0.02 -> 0.03, 0.25 -> 0.30, or either `<=` to `<` passed all eight
calibration tests. Those are not free parameters — they ARE the documented CI-red
thresholds, so a silent shift would quietly falsify the 38/718 figures in
docs.corpus-size-signal and docs/ci-cd.md (a strict cap reds after 37 long additions, a
strict floor after 717 short ones).

test_the_minority_band_BOUNDARIES_are_exactly_where_documented pins all four. It uses
100-record fixtures so k over the ceiling IS k%, and both 2/100 and 25/100 are exactly
representable and compare equal to the constants — true boundary cases, not near-misses.
Verified by mutation: all four now fail it.

PROSE
- corpus-size-signal said what stays blocking is "what routine growth cannot break",
  immediately before explaining that 38 routine additions break it. Now "what no SINGLE
  ordinary addition can break", which is what is actually true.
- docs/ci-cd.md said the fine claim is "never asserted"; it is never asserted AGAINST THE
  LIVE CORPUS, and IS asserted on synthetic distributions the tests own. Corrected — the
  distinction is the whole design.

Correction to an earlier commit message in this branch (9d2b30dc3, already pushed, so
recorded here rather than rewritten): it said the cross-check was clean on "all 183 real
records". 183 is the active keyed-record count; the cross-check scans the record WINGS —
195 files at that commit, 190 of them carrying frontmatter. The check was clean; the
figure named the wrong population.

Verification: 432 scripts/tests pass; ruff at baseline parity (47); validator exits 0 with
no drift notice; corpus at p90=60, 18/183, calibrated; new record still 60 lines.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 22:52:03 +02:00
timothyandClaude Opus 5 b24c51ab51 fix(688): stop enumerating multiplicities, pin n and the keyless filter, de-couple the vacuity floors
Review round 5. One reviewer returned MERGEABLE with prose findings; the other found four
more, two of them real test gaps. Both are addressed here.

THE MULTIPLICITIES WERE WRONG AGAIN — fourth commit running. The "measured" sequence
59, 59, 60, 60 -> 81 is measured nowhere: origin/main has 59, 59, 59, 60, 60 and HEAD has
four 59s and three 60s. I had even tagged it `(measured)` in a canonical decision record.

So this stops enumerating them. All four sites now state only the load-bearing, stable
fact: the lengths climb to the ceiling and then jump STRAIGHT to 81 with nothing in
between, so one record moves p90 by 21 lines. The multiplicities change with every record
added; the gap is the point. This is the same "fix the boundary, not the site" move the
tests got three rounds ago, applied to prose that had failed four times.

TEST GAPS
- Deleting the over-tight test removed the only pin on CeilingCalibration.n: a mutation
  returning n=1 passed all 19 relevant tests while printing a wrong denominator in the
  drift notice. Pinned.
- The `if r.key` filter was load-bearing in production and unpinned: main() passes the
  UNFILTERED list (194 entries, 11 keyless, one a 106-line "Records formerly in this file"
  scaffolding block), while every test handed the function a pre-filtered list — oracle and
  production agreed only by accident. Pinned.
- The --record-ceiling 0 arm's claim that it "cannot go vacuous for any non-empty corpus"
  was FALSE: an empty record body is validator-valid and record_prose_lines returns 0, so a
  corpus of empty-bodied records has no offender at 0. Now -1, which makes the claim true.
- The three `len(recs) > 100` vacuity floors were themselves growth-coupled — 83 legitimate
  retirements would red them even with the ceiling still calibrated, which is the #688 class
  in the guard rather than the assertion. Lowered to >20 where a floor is meaningful, and to
  plain non-empty on the derived-ceiling test, whose derivations need nothing more.
- test_main_FEEDS_the_crosscheck now compares against `set(record_wing_files())` instead of
  a hardcoded basename, killing the same mutation with zero corpus dependence.

PROSE
- "ordinary growth cannot cross it — NOT immune" contradicted itself in four places. Now:
  no SINGLE ordinary addition can cross it; this is measured headroom, not immunity.
- "trimming or archiving 15" blurred two different denominators. Trimming leaves 3/183 =
  1.64%; archiving leaves 3/168 = 1.79% because the denominator moves too. Both verified,
  both under the floor, now stated separately.

Verification: 431 scripts/tests pass; ruff at baseline parity (47 — a 121-char docstring
line briefly took it to 48 and is rewrapped); validator exits 0 with no drift notice;
corpus at p90=60, 18/183, calibrated; record still 60 lines.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 22:11:25 +02:00
timothyandClaude Opus 5 c56dfdd539 fix(688): delete the last over-tight test, pin the crosscheck's INPUT, fix 4 prose defects
Review round 4, both reviewers. Both report the code path SOUND and the #688 coupling
class analytically gone (rows proved, not merely observed green); one caught 28 of 30
mutations. What blocked was one over-tight test, two unpinned mutations, and prose —
including two defects the PREVIOUS commit introduced while claiming to fix numbers.

TESTS
- Deleted test_adding_ordinary_records_cannot_RED_the_blocking_property. It appended two
  long records to the LIVE corpus and asserted flags_minority on the RESULT, so it crossed
  the cap two records before production does (56/221 vs 54/219) — a test named "cannot RED
  the blocking property" being a tighter tripwire than the property. Fourth instance of the
  #688 defect in this change. Deleted rather than tuned: both its jobs are already covered
  off live data (the synthetic v4/v5 contrast, and the deliberate live guard at the
  production threshold).
- test_main_FEEDS_the_crosscheck_the_REAL_wing_files closes a mutation hole found by
  review: replacing `pyyaml_frontmatter_faults(record_wing_files())` with `...([])` in
  main() left the ENTIRE suite green. Both existing wiring tests monkeypatch the function,
  so they pinned that its RETURN reaches errs, never that its ARGUMENT is the corpus —
  the '#609 marker that printed OK while doing nothing' defect one level up, which is the
  exact thing the new record indicts. Verified: the mutation now fails this test.
- test_main_actually_REPORTS_... went vacuous whenever the ceiling legitimately goes green
  (`False is False` passes with the whole warning branch deleted). Added an arm at
  --record-ceiling 0, which no non-empty corpus can make vacuous.
- Pinned two surviving mutations: ceiling_calibration's n_over boundary (it recomputes the
  count, so oversized_records' exclusivity test does not cover it — `>` vs `>=` differs by
  the 3 records sitting exactly on the ceiling) and p95's quantile (the 95/5 fixture cannot
  tell 0.95 from 0.99).

PROSE — two of these were introduced by the previous commit, whose stated job was fixing
numbers. That is the pattern worth naming, not the individual typos.
- "so ONE new record could move p90 lines" — the previous commit deleted the magnitude and
  left the sentence ungrammatical. Now "by 21 lines".
- It also introduced a THIRD variant of the sequence it was correcting ("60, 60, 60") and
  missed a FOURTH site in ci-cd.md still saying "twenty lines". All four sites now read the
  measured 59, 59, 60, 60 -> 81, and 21 lines.
- 59- and 60-line records were described as "above the ceiling"; they are at or below it.
- "routine growth cannot cross it" overstated the bound: it is deliberately less sensitive,
  not immune. Reworded, and the THIRD and tightest arm is now documented wherever the other
  two appear: consolidating 15 of the 18 offenders drops below the 2% floor (verified:
  3/183 = 1.64%). That is in real tension with test_oversized_records_can_go_green and is
  stated as accepted — at 3/183 the constant genuinely is mis-calibrated — with the remedy
  named: a consolidation PR that large should re-derive the ceiling in the same change.
- Corrected a docstring that called the 999-ceiling failure "silently deleting the
  assertion"; it would go red, not silent.

Verification: 430 scripts/tests pass; ruff at baseline parity (47); validator exits 0 with
no drift notice; corpus at p90=60, 18/183, calibrated. The two new claims were measured,
not assumed: the empty-list mutation fails the new test, and 15 consolidations reaches
1.64%.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 21:47:24 +02:00
timothyandClaude Opus 5 b3a8826281 fix(688): stop asserting live-corpus order statistics anywhere in the suite
Review round 2 (both reviewers, independently) found the round-1 fix incomplete: the
live-corpus coupling survived in two more tests. This is the THIRD instance of one
defect class in this change, so the fix is to remove the coupling rather than patch
another site.

BLOCKER — test_adding_ordinary_records still asserted live order statistics. The
`if before.marks_tail:` guard made the PRECONDITION conditional but left the
CONCLUSION (`assert not after.marks_tail`) an assertion about the live p90. Verified:
appending 16 ordinary 30-line records — nothing long, nothing unusual — makes both
sides true and fires it, reddening the blocking job for an unrelated author. Exactly
what #688 exists to abolish.

The v4-vs-v5 contrast moved to test_v4_would_have_reddened_where_v5_holds, built on a
distribution the test OWNS, reproducing the shape that matters (a sparse gap just above
the ceiling). The real-corpus test now asserts only the robust claims: the additions
were counted, v5 holds, and the measured headroom.

Same treatment for the "bad ceiling" teeth test, which hard-coded that 200/229/230 stay
rejected on the live corpus — three new 200+ line records flip it. Teeth now demonstrated
synthetically; the only live-corpus assertion left is that today's ceiling is accepted,
which needs 38 over-ceiling or 718 short additions to break.

The IFF drift test could lose its quiet branch: one 61-line record makes BOTH the 60 and
999 ceilings drift, at which point an UNCONDITIONAL notice would pass. Both ceilings are
now DERIVED — p90 itself (always calibrated, since p90 <= p90 <= p95) and max+1 (always
off the tail) — so each branch is guaranteed by construction, and the test asserts it
exercised both.

Added the missing regression test for the typed-mapping-key TypeError: removing `key=str`
now fails a test instead of only a manual probe.

Corrected against measurement: the v5 row of the record's own version table still stated
the REJECTED first-draft bound (`0 < f < 1/3`) — the canonical artefact contradicting both
the code and its own next paragraph; accepted range is 43..180, not "roughly 45..150";
breaching the cap takes 38 additions, not 37 (37 lands exactly on 0.25, which passes under
`<=`); "5x headroom below the floor" was inverted; ci-cd.md said four versions "all
ratcheted" when v1 was vacuous and v2 accepted an absurd ceiling; and the crosscheck record
overstated protection — script-tests is NOT a required check, so "no broken record has
reached main" is procedural, not structural.

Evidence the coupling is actually gone: mid-fix the corpus sat at marks_tail=False (an
edit pushed this branch's own record to 61 lines, moving p90) and the suite stayed fully
green. Under the old assertions that state reddened CI. The record is trimmed back to 60
so main ships calibrated and no drift notice nags.

Verification: 428 scripts/tests pass; ruff at baseline parity (47); validator exits 0 with
no drift notice; corpus at p90=60, 18/183 over the ceiling.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 21:02:01 +02:00
timothyandClaude Opus 5 80818aa294 fix(674,688): address independent review — restore the coarse bound's teeth
PR Gates / CI image pin matches docker/ci (pull_request) Successful in 33s
PR Gates / Docs update reminder (pull_request) Successful in 31s
PR Gates / decisions lifecycle (pull_request) Successful in 41s
Review verdict / Set review-verdict status (pull_request_target) Successful in 12s
Build ErsatzTV Image / Formatting (changed .cs conform to .editorconfig) (pull_request) Successful in 1m14s
Build ErsatzTV Image / API docs in sync (OpenAPI + endpoint index) (pull_request) Successful in 1m32s
PR Gates / Script tests (pytest) (pull_request) Successful in 2m8s
Build ErsatzTV Image / Build & test (.NET) (pull_request) Successful in 8m53s
Build ErsatzTV Image / Functional E2E (curl + UI contracts) (pull_request) Successful in 20m30s
Build ErsatzTV Image / EF migration integrity (SQLite + MySql) (pull_request) Successful in 23m19s
Build ErsatzTV Image / Build & push image (amd64) (pull_request) Has been skipped
Two independent cold reviews (one cross-family) agreed on the top two findings.

1. The #688 fix was defeated by its own complement test. test_main_is_QUIET_about_
   drift asserted the drift notice was ABSENT while running main() over the LIVE
   corpus — whose failure condition is bit-for-bit v4's assertion, in the same
   blocking job, three functions down. p90 sat exactly on 60, so one over-ceiling
   record would have reddened it. Replaced with an IFF test that uses
   ceiling_calibration as its oracle, so it asserts the WIRING rather than the
   corpus's current state, plus a guard that at least one branch fires.

2. The coarse bound was nearly unfalsifiable. `0 < fraction_over < 1/3` accepted
   EVERY ceiling from 39 to 229 on the real corpus — including the ceiling of 200
   my own docstring offered as the case it catches, because one 230-line record
   keeps the count nonzero. That claim was simply false and is corrected. The floor
   is now a FRACTION (2%) and the cap 25%, which rejects 200/229/230 and 20, and
   accepts roughly 45..150. Headroom measured, not estimated: 37 consecutive
   over-ceiling additions, against ONE record to break v4.

3. yaml.safe_load raises a bare ValueError, not a YAMLError, on a well-shaped but
   impossible date (stale-after: 2026-06-31), which escaped as a traceback and
   killed the validator on any machine with PyYAML. The except is now deliberately
   broad, with a test.

4. PyYAML returns TYPED mapping keys, so a stray `1: x` made sorted(set|set) raise
   TypeError. Sorted with key=str.

5. The headroom prose was arithmetically wrong (~42/~40 where the real values are
   63/64; each addition moves numerator AND denominator) and the record counts were
   stale. Corrected against measurement.

6. test_adding_ordinary_records passed identically with its two additions removed.
   It now asserts the additions were counted, and that they break the v4 property
   while leaving v5 satisfied — guarded by `if`, never asserted, since whether v4
   currently holds is a fact about the live distribution and asserting it would
   rebuild the ratchet.

Also recorded honestly in docs.frontmatter-pyyaml-crosscheck: decisions-guard
installs no PyYAML, so in CI the cross-check always skips and script-tests already
caught both hazards — the CI delta is close to zero and the real fix is the local
loop plus the tool/suite agreement. And the new record was trimmed 64 -> 58 prose
lines: at 64 it moved p90 to 64 by itself, i.e. this PR would have reddened the old
blocking job. That is now cited in the test as the live demonstration.

Verification: 426 scripts/tests pass; ruff at baseline parity (47); validator exits
0; corpus back to p90=60, 18/183 over the ceiling, marks_tail and flags_minority
both true.

Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 20:37:27 +02:00