HOMELAB-2682: fix(sbx-gits): proof check anchored to the smoke committed at the head #859
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Delete branch "plane/HOMELAB-2682-check-anchor"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
Qué arregla (el defecto, medido en vivo)
check <head>comparaba elscript_sha256de cada línea del ledger con el smoke montado en/run/sbx-tools/gits-sbx-emu-smoke.sh. Las claves del ConfigMap se refrescan EN CALIENTE (elkubelet reescribe la clave ya proyectada, sin recrear el pod), así que cada refresco ponía rojo
todo lo anterior.
Forma real del fallo, en
sbx-gits-0, head26cd6d87fca5aaca804243b4f5b5224d9d482d52: dos líneasOK(39e03a354702…, la route suite de persona;e74156e33ce4…, la suite de enrol) ychecklasrechazaba las dos porque el montado ya hasheaba otra cosa (refresh posterior a #847). GITS rung 2
está bloqueado por esto.
El arreglo: el ancla es el COMMIT, no el fichero montado
git cat-file blob <H>:core/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.sh. El sha256 delblob y el de
sha256sumdel fichero son el mismo, así que no hay que copiar nada.checkexige un árbol git (--tree,EMU_PROOF_TREEo el directorio actual — la compuertasiempre está dentro del checkout) y falla cerrado (rc 2, con el motivo) cuando no hay árbol, o
cuando el commit pedido no está en ese checkout. Nunca cae al montado.
OKvia=runcuyoscript_sha256sea el ancla de ese head —más los requisitos que ya había (
tree_clean/tree_clean_aftertrue,rc 0,tests_failed 0,tests_run>0, binding de la captura).es EVIDENCIA: se le exige la integridad completa (cadena + binding de captura + clase +
resultados) y nunca es suficiente y nunca es motivo de fallo del head. Una suite sustituta
no desbloquea el merge.
degrada a "evidencia".
--script): si difiere del commit se imprimeSECUNDARIO el fichero MONTADO … va por delante o por detrás del commit. NO es la compuerta.Nunca es criterio.
PROOF: OK … ancla=smoke@commit …,y las líneas-extra como
PROOF evidencia (no suficiente): ….Forma de la línea (compatibilidad byte a byte)
suite_relpathes OPCIONAL y sigue la misma regla queclassyresults_sha256(#853): vadentro del texto hasheado, al final, y sólo si está. Una línea que no lo lleva recalcula
byte a byte el mismo sha256 que antes — las 21 líneas del ledger vivo siguen validando. Hay
caso de harness que compara el
chain_textdeorigin/livecon el de esta rama (18 args y 20 args,idénticos) y que comprueba que
suite_relpathsólo añade la línea 21.Honestidad con los heads viejos
Las líneas grabadas mientras el smoke montado iba legítimamente por detrás del commit se leen ahora
contra el blob commiteado y necesitan UNA re-corrida en ese head. Es la dirección conservadora.
Medido en el pod con esta rama (read-only, sobre el ledger real):
Las dos líneas ya no se tiran por "suite distinta": se leen como evidencia. Pero ese head
no puede quedar canónico con una re-corrida, porque el árbol de la app no lleva el smoke
commiteado: necesita (a) o (b) de la decisión 1. Un head que sí lleve el smoke commiteado queda
canónico con una sola corrida fresca.
🔴 Dos cosas que necesitan tu decisión (no las he decidido yo a la callada)
1. El árbol de GITS no lleva la fuente de la herramienta. El literal del brief
(
git cat-file blob <H>:core/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.sh) sólo resuelve enun árbol del repo de la herramienta. El checkout de GITS es
Homelab/ghostty-in-the-shell(
/home/ld/work/epics/gits-e3/wt/j1, head26cd6d87), y no tienecore/manifests/…en ningúncommit: ni el smoke ni la herramienta viven ahí (el smoke sólo existe en el ConfigMap). Comprobado:
git -C … ls-tree -r HEAD | grep sbx-emu→ vacío.No hay respaldo. Una versión anterior de esta rama ofrecía una segunda forma de ancla (la
suite COMMITEADA en ese head, nombrada en la salida como
ancla=<familia>@commit:<ruta>) cuando elárbol no llevaba la herramienta. Eso se quitó (hallazgo B2 de la revisión: en un árbol sin el
smoke, cualquier script commiteado se volvía el ancla, así que una suite sustituta trivial
desbloqueaba el merge). Hoy ese head es rechazo, rc 1, sin ancla:
Así que el gate de GITS no queda "en verde con otro ancla": queda cerrado hasta que exista el
literal. Si quieres el literal en TODOS los árboles, hay dos caminos y los dos son tuyos, no
míos: (a) commitear el smoke (o un pin de su sha256) dentro del repo de la app, o (b) que la
compuerta corra
checkcon el árbol del pipeline, no con el de la app. Sin (a) o (b), GITS rung 2no puede pasar la compuerta — que es el estado honesto, no un falso verde.
2.
FAILno veta el head entero, veta su línea. El brief dice "a FAIL line on the head stillfails the head (keep strict)". Lo he implementado como: una línea
FAILnunca se degrada aevidencia y siempre sale como motivo de rechazo — pero no invalida un
OKcanónico posteriordel mismo head. El motivo es el ledger vivo: los heads
f068805b,1a4e2b12y67034b5dtienenlíneas
FAILyOK(re-corridas verdes tras un fallo de entorno). Con la lectura literal, esosheads quedarían imposibles de aprobar para siempre, incluso después de una corrida verde — el
"re-corré sobre el head" que este PR documenta no podría funcionar nunca. Si prefieres la lectura
literal, es un cambio de tres líneas y lo hago.
Verificación
Harness completo (
bash scripts/gits-sbx-epic-test.sh, SOLO, sin concurrencia, en un worktreepinneado a
b9ce8fc7): 653 comprobaciones, 648 PASS, 5 FAIL, 6 SKIP.22[R176b](el ledger: 22b entera)24[HOMELAB-2682](clase + resultados por corrida)25[HOMELAB-2682](nueva: el ancla)T7[diff](guarda del diff clavado de sbx-gits)17[R159]Los 5 rojos son los cinco rojos conocidos y de otro ticket —
probe uses an EMPTY pre-existing --dir,manifest[2]/manifest[3]/manifest[3b]yT7 emulador dentro del pod(los de #851; aquí sólo se confirma que siguen siendo exactamente esos cinco). El caso de tiempos
que la medición anterior contaba como sexto no se reprodujo en ninguna de las dos corridas
solas de esta ronda.
T7[diff]— la guarda del diff clavado (M README.md+M tools/gits-sbx-emu-proof.sh) con sus dos mutaciones rojas — y17[R159]están verdes.Casos nuevos de §25 (todos ejecutan la herramienta contra repos de mentira, ningún rojo "de
confianza"):
ancla=smoke@commit, y la línealleva
suite_relpath.lo que hace el kubelet) y el head viejo sigue en rc 0, con el desfase como
SECUNDARIO … NO es la compuerta.no hay ninguna linea CANONICA)— aunque el montado coincida con ese head: si se comparara con el montado, pasaría.
compuerta (sale como
evidencia (no suficiente)) y no hunde a un head que sí tiene su líneacanónica.
FAILdel smoke canónico → rc 1 (result=FAIL … rc=5 … tests_failed=1).(fail-closed: no se cae al montado).
head (
NO tiene un smoke canonico COMMITEADO … NO se admite una suite sustituta, ni commiteada; B2). La corrida de una suite alterna commiteada en ese árbol sale comoevidencia (no suficiente), y una suite que corrió pero no está en el commit tampoco vale.suite_relpathopcional:chain_textcon 18 y con 20 args es byte a byte el deorigin/live; el campo sólo añade la línea 21.Los casos que añadieron las rondas 2 y 3 (todos dentro de §25, todos verdes):
tree, ungitlink, y ungitlinkcuyo commit no está en elobject DB: rc 2 nombrando el tipo real, nunca el sha256 de la cadena vacía.
del object DB: rc 1 diciendo los bytes declarados contra los leídos.
task=del veredicto es el de la línea que pasa, no el de la última delledger (línea 1 smoke, línea 2 suite de route →
task=smoke:… linea=1).(
aviso el smoke CANONICO TAMBIEN CORRIO EN ROJO), no como "otra suite".rc 1 con los dos oids.
git replace(commit, árbol, blob y encadenado) + una corrida real de lasuite de F sobre el árbol parado en H: rc 1 nombrando el blob real del head; y (f12b2)
lo mismo más
core.useReplaceRefs trueen el config del checkout, también rc 1.tests_rundel veredicto es el de esta corrida, no el del directorio deresultados acumulado.
Además:
bash -nde la herramienta y del smoke, y--helpsin stderr (sin backticks sin escapar).Lo que NO se ha tocado:
kustomization.yaml,statefulset.yaml(el guarda del diff clavadoqueda verde con el conjunto re-medido a los DOS ficheros de esta rama:
README.mdytools/gits-sbx-emu-proof.sh; el smoke no cambia aquí, su--classya está en live con #853),ni ningún manifiesto, Service o NetworkPolicy.
No mergear todavía: siguen dos asientos DeepSeek.
Verdict of record — ld-reviewer — head
f4ee5aaf88: REQUEST_CHANGESmodel: deepseek-flash
session: 01a1ade1-775b-757a-b84d-278fbf20dd82
Blockers
git_blob_sha(tools/gits-sbx-emu-proof.sh:419-428) doesgit cat-file -e "$rev:$rel"(existence only) and thengit cat-file blob "$rev:$rel" | sha256sum. When the object at that path is a tree/gitlink,cat-file blobfails and the pipeline hashes EMPTY input, sosmoke_shabecomese3b0c44298fc…(sha256 of the empty string) instead of a refusal — the[[ ${#sha} == 64 ]] || return 1guard cannot see it because the empty-stream hash is 64 chars, andset -o pipefailon the assignment is never checked. Measured in /tmp (genuinerun, no ledger forgery): a head whosecore/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.shis a DIRECTORY (git cat-file -t→tree) plusrun --suite scripts/empty.sh(a zero-byte file, sha256 alsoe3b0c44298fc…) givesPROOF: OK … ancla=smoke@commit suite_sha256=e3b0c44298fc…, rc 0, having executed nothing (tests_runsupplied by an XML the tree pre-stages;xml_scanaccepts mtime >= start). The verdict then asserts the canonical smoke blob of the head — a statement that is false. Fix is small:[[ $(git -C "$tree" cat-file -t "$rev:$rel" 2>/dev/null) == blob ]] || return 1before hashing (and reject an emptycat-file bloboutput).core/manifests/…anywhere) with a committedscripts/alt-suite.shthat writes a fake<testcaseXML andexit 0→run --suite scripts/alt-suite.shthencheck <head>gives rc 0,ancla=suite@commit:scripts/alt-suite.sh,tests_run=3. That is a pass without the canonical smoke and without the emulator, reachable only through the supported interface, and it is the tree where the gate is actually used: live, read-only insbx-gits-0, the rung-2 checkout/home/ld/work/epics/gits-e3/wt/j1is at26cd6d87fca5…andgit cat-file -e HEAD:core/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.shanswersdoes not exist in 'HEAD'(also absent from every commit ofHomelab/ghostty-in-the-shell). Before this change a substitute suite could not pass there (the mounted smoke was the anchor); after it, a trivial committed script can. The PR escalates this as the operator's decision (options (a)/(b)) and that is the right thing to raise — but it cannot merge in this shape: it does not meet the acceptance criterion "a substitute/easier suite can NEVER satisfy the gate". Two narrower routes that keep rung 2 moving without the operator's policy call: (i) make the fallback anchor require a committed, reviewable pin (a small file in the app repo naming the canonical suite path + its sha256, refused when absent) so the worker cannot unilaterally choose the anchor; or (ii) acceptancla=suite@commit:only when the path is one the ticket/fleet declares canonical, refusing everything else. Either keepssmoke@committhe only anchor in the tool tree and removes the free choice in the app tree.Concerns
gate[]is discarded in theok_line > 0branch, so when a head has aresult=FAILline of the canonical smoke AND a laterOKline, the OK output names neither the FAIL line nor its rc (measured:PROOF: OK … linea=2with no mention of line 1,result=FAIL rc=5 tests_failed=1). That matches the PR's decision #2 semantics, but it is not what docs/gits-sbx/run-proof.md:271 reads like ("una línea FAIL conserva toda su fuerza: sigue siendo motivo de rechazo"), and a reader of the verdict cannot see that the head also had red runs. Suggest printing the FAIL lines in the OK branch asPROOF aviso …(does not change rc).25[HOMELAB-2682] (f)asserts rc 0 withancla=suite@commit:docs/route.shfor a committeddocs/route.shin an app-style tree, so the suite will keep the weakening green; and no case commits a directory/gitlink at the canonical relpath or runs an empty suite, which is why B1 is invisible. When B2 is narrowed, §25 needs the inverse assertion (a committed non-canonical suite must be refused) and §25 needs the non-blob mutation.Verified (this seat, primary sources)
check Hstays rc 0 and printsSECUNDARIO … el montado va por delante o por detras del commit. NO es la compuerta.Live, the mounted smoke now hashesa7b8be878109…while the ledger holds lines39e03a35…/e74156e3…for26cd6d87— the shape the PR describes.script_shais used only formount_note/manifest_note(lines 942-944, 1190-1195);--scriptpointing at a missing file leaves the verdict unchanged.EMU_PROOF_SMOKE_RELPATHis exactly theconfigMapGeneratorsource path (core/manifests/apps/sbx-gits/kustomization.yaml→tools/gits-sbx-emu-smoke.sh), the blob sha256 equals the file'ssha256sum, another head's blob does not satisfy an old line, and a foreign suite committed in a tool tree is refused asevidencia (no suficiente)while a foreign suite cannot drown a head that has its canonical line.HEAD:core/--upload-pack=…refused. No crash on any of them.sbx-gits-0:/home/ld/work/.emu-proof/ledger.jsonl, md59b7fd72b6736c8d67b5617bbf7be87e0, none carryingsuite_relpath/class/results_sha256) recompute the STORED hash with both theorigin/livechain_textand the new one — 21/21 byte-identical, 0 mismatches;suite_relpathis appended only as the 21st line when present, so tampering with it breaks the chain.runinvocations, negative cases (b)/(c)/(f2)/(e)/(e2), non-vacuous. Full run at post time: 459 PASS / 5 FAIL / 6 SKIP, the 5 failures being exactly the known pre-existing ones (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod);T7[diff]and17[R159]green so far. §25 had not been reached when this verdict was filed — that section is read, not yet observed green by this seat.Verdict of record — ld-reviewer — head
f4ee5aaf88: REQUEST_CHANGESmodel: deepseek-flash
session: s2-2682-840db5a2
head:
f4ee5aaf88Independent seat 2 of 2 (adversarial). Probes run in /tmp only against throwaway repos; nothing was executed in the pod and no ledger outside /tmp was read.
Blockers
git_blob_sha()accepts a NON-blob at the canonical path:cat-file -e <rev>:<rel>succeeds for a tree/gitlink,cat-file blobthen fails with its stderr dropped, and sha256 of the empty output (e3b0c442…) becomes the anchor. Reproduced first-hand: head with a DIRECTORY atcore/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.sh,run --suitean EMPTY file (same e3b0c442… hash), pre-seeded future-mtime XML under<module>/build/outputs/androidTest-results→ line result=OK tests_run=2 →PROOF: OK … ancla=smoke@commit, rc 0, with a suite that exercises nothing. Confirm of 22296 B1, not a new finding. Fix is small: requirecat-file -t ":"== blob and treat a failed/empty blob read as no anchor (rc 2).core/manifests/apps/sbx-gits/kustomization.yamlbut no smoke, plus a committeddocs/route.sh→ancla=suite@commit:docs/route.sh, rc 0; (ii) a tree with no smoke at all, same result. Reachable inside THIS repo's history: commit8e25ef77(parent of the commit that added the smoke) haskustomization.yamland no smoke, so a head that deletes or renames the smoke at H silently flips the gate into the fallback mode. Confirm of 22296 B2. A cheap guard that keeps the app-repo case working: if the tree carriescore/manifests/apps/sbx-gits/kustomization.yamlat H, the smoke path must also exist at H, else rc 2.Concerns
ancla=smoke@commitreads identically whether that blob is byte-identical to live or rewritten — reproduced: a crafted repo with a modified smoke at the canonical path gives rc 0 with no signal in the OK line. It is not silent in the merge gate, because the smoke sits inside the pinned T7 diff set, so any change to it is visible in the reviewed diff; that is why this is a concern and not one of the two items above. Cheap mitigation: print the anchor blob's short sha and whether it equals the smoke at the merge-base/live in the OK line.--treeis unvalidated — a plaingit cloneof a crafted repo that contains H passes (rc 0). This is the same trust-root freedom the old--scripthad (it accepted any file as the compare target, with no repo at all), and--helpalready states the gate runs inside the checkout, so it is narrower than before. Optional hardening: refuse a tree whoseoriginis not the expected repo.checkno longer fails whenkustomization.yamlstops delivering the mounted file —manifest_noteis advisory only, where it used to be a hard reason. Covered in-tree by H8[8]kubectl kustomize, so low.checkon the same shape and it behaves identically, so this is NOT a strictness regression introduced here; it only differs from the brief's literal wording, and the author escalated it instead of hiding it. My vote: keep the implemented reading (the live ledger has heads with FAIL-then-OK re-runs) and state it in the docs.chain_textextracted fromorigin/liveand from this head produce the SAME sha256 for the 18-arg and the 20-arg forms (df1b9431… and 05054e1a…), and the 21st field only appendssuite_relpath=as the last line, so the live 21-line ledger keeps its hashes. No tree → rc 2 with the reason; head not a commit of that checkout → rc 2;EMU_PROOF_TREEhonoured; default '.' outside a checkout → rc 2 (documented, and the gate runs inside the checkout).probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod); everything they read (statefulset.yaml) is untouched by this diff, whose--name-statusis exactly README.md, tools/gits-sbx-emu-proof.sh, docs/gits-sbx/run-proof.md, scripts/gits-sbx-epic-test.sh. The author's 6th red (22[R172c-fix] timing) passed in my run, consistent with load sensitivity. §25 (the anchor) 20/20 PASS, and its cases do run the tool against throwaway repos rather than grepping.scripts/gits-sbx-epic-test.shnames the anchor as<head>:tools/gits-sbx-emu-smoke.shwhile the constant is repo-root-relative (core/manifests/apps/sbx-gits/tools/…); a reader of that comment alone looks in the wrong place.Round-2 blockers from the review seats (22296 seat 1, 22303 seat 2). B1 — the anchor accepted a non-blob at the canonical path. `git_blob_sha` only asked `cat-file -e` (which answers YES for a TREE) and then piped `cat-file blob` into `sha256sum`. With a tree or a gitlink there, the pipe was EMPTY and sha256sum of nothing is e3b0c442… — the sha256 of the empty string, which is also the sha256 of a ZERO-BYTE suite file. `check` then printed `ancla=smoke@commit` with nothing executed. Now the TYPE is asked first (`git cat-file -t`, via git_path_type) and anything that is not exactly a `blob` is a hard refusal (rc 2) naming the real type. `set -o pipefail` alone does not close this — the last stage of the pipe succeeds on empty input — so the gate is explicit. The other pipelines in the tool were audited in the same pass (see the comment on git_blob_sha): the remaining `sha256sum | cut` pipelines hash a SET of files whose empty value is an honest "zero files", and every `sha256sum <file>` sits behind `[[ -f ]]` or a `${#sha} == 64` gate. B2 — a head without the canonical path could still PASS. The code fell back to letting ANY committed script anchor the line (`ancla=suite@commit:<ruta>`). That widens the substitute-suite surface El Director's invariant forbids, and it regressed the pre-PR behaviour, where a substitute suite could not pass in such a tree. The fallback is GONE: a head with no committed canonical smoke CANNOT pass the emulator gate — `check` returns rc 1 naming exactly that ("esta head no tiene un smoke canonico COMMITEADO en <relpath>: la prueba del emulador NO puede pasar este head ... no se admite una suite sustituta, ni commiteada"). Foreign-suite lines stay evidence-only, never sufficient, never a veto. `suite_relpath` keeps travelling in the line as context; it no longer anchors anything. A1 (cheap mitigation, seat 2) — the OK line now prints the anchor blob's short sha AND `montado=IGUAL|DISTINTO|no-legible` against the currently-mounted smoke, so a PR that rewrites the committed smoke shows the divergence in the verdict line instead of printing identically. Signal only: the verdict is still the committed blob's and the real review boundary remains T7's pinned diff. Untouched by design: FAIL semantics (a FAIL line not vetoing a later canonical OK is pre-existing live behaviour, gits-hypervisor's ticket), A3, and the relpath nit — those stay posted concerns. chain_text is untouched: the live 21-line ledger still recalculates byte-identical (21/21 verified against both origin/live's and this branch's chain_text).Verdict of record — ld-reviewer — head
244b1bf357: APPROVEmodel: deepseek-flash
session: s2-2682-r2-337cad96
head:
244b1bf357Independent seat 2 of 2, ROUND 2 (adversarial), on the delta that answers the two round-1 findings. Everything below was measured in /tmp: throwaway git repos plus the tool taken from this head. No pod was touched; no live ledger was read or written.
Evidence, solo:
bash scripts/gits-sbx-epic-test.sh→ 645 checks, 640 PASS, 5 FAIL, 6 SKIP. The five reds are exactly the known ones of other tickets (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod); the timing case the description counted as the sixth did not reproduce in this solo run. §25 (el ancla) + §24 + §22b: 49 checks, 0 FAIL, and25[HOMELAB-2682] EL ANCLA (falla:)is green. CI on this head: runs #3219, #3220, #3221 — all pass.Blockers
None.
Resolutions
git_path_type()answers before anything is hashed andcheckstops with rc 2 when the object atcore/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.shis not a blob. Measured on this head: a DIRECTORY at the path (cat-file -t→tree) → rc 2 naming 'tree'; a GITLINK built withupdate-index --cacheinfo 160000→ rc 2; a gitlink whose commit is absent from the object DB → thels-treefallback names 'gitlink' and it is still rc 2, not the "absent" verdict. There is no longer any route that puts the sha256 of the empty stream intosmoke_shawithout a committed blob at that path, and thecat-file blobread is now behind the type check instead of being the check.docs/route.shplussuite_relpathpointing at it, no smoke anywhere in the tree) gives rc 1 with that sentence and lists the run asevidencia (no suficiente); the verdict no longer contains anysuite@commitform. The neighbouring shape is also closed: a head that DOES carry the smoke, plus a second committed suite that actually ran, gives rc 1 and the substitute is evidence only. Forging the field is not available either —suite_relpathsits inside the hashed text (chain recalculated from zero) and is now read only for evidence prose; no blob lookup hangs off it.Attack results, beyond the two findings:
via=run,tree_clean=true,tree_clean_after=true,result=OK,rc=0,tests_failed=0, integertests_run>0, output capture present and matching in sha256, size and first line (head=,suite_sha256=, plusclasswhen declared), result copies matching when declared, andscript_sha256equal to the blob of the constant relpath at H.ok_lineis assigned in exactly one place, under[[ -n $anchor ]]; nothing else returns 0. Nothing I could construct inside the unit surface passes outside that class.EMU_PROOF_SMOKE_RELPATHis a plain assignment (not${VAR:-}) and is never re-assigned.EMU_PROOF_SMOKE_RELPATH=evil/smoke.shat check time changes nothing: the verdict still names the constant path and still gives rc 1 for a head that lacks it.HEAD:…,:…,:/nm,HEAD^{tree},HEAD:are all refused (rc 2 through the^{commit}validation). The relpath spliced into$rev:$relis a constant literal, so there is nothing to inject there; a Unicode-variant path in the tree is simply a different path and can never become the anchor.--scripton a different file → rc 0 withmontado=DISTINTO; head with no line plus--scriptequal to the commit's blob → rc 1;--scripton a nonexistent path → verdict unchanged. Prose only, exactly as documented.Concerns
git_path_type()maps mode 120000 toblobandcat-file -tanswersblobfor a symlink, so a head can commit…/gits-sbx-emu-smoke.shas a symlink whose link text is a runnable one-liner; arunof a /tmp file holding those exact bytes then givesPROOF: OK … ancla=smoke@commit ancla_blob=61c1e244f154…, rc 0,tests_run=2. It is byte-honest — the bytes executed ARE the bytes committed — so no different suite gets through, and the shape is visible in the reviewed diff; that is why I am not filing it against this delta. Still: a checkout of that head holds a dangling symlink, not a suite. One-line hardening: gate on thels-treemode being 100644/100755 rather than oncat-file -t.sha256('')is still an acceptable anchor VALUE where the head genuinely commits a zero-byte blob at the constant path — measured rc 0 withancla_blob=e3b0c44298fc…, a zero-byte suite, andtests_runsupplied. The supply is the pre-existing part:xml_scancounts any XML under<module>/build/…with mtime >= start, which anything with write access to the gitignored build dir can stage — the residual limit the tool documents. So the empty-hash path is closed where it mattered (non-blob objects) and what remains is the honest state of an empty blob, loud in the diff.linea=2). Live behaves the same way, so this delta introduces no strictness regression and the decision belongs to the description; worth stating in docs/gits-sbx/run-proof.md as round-1 A4 asked. The passing branch also still drops the FAIL lines from the verdict text, so a reader cannot see that the head had red runs.26cd6d87…) read red until re-run against the new anchor. Fail-closed, and it is stated in the doc and in the description.Verdict of record — ld-reviewer — head
244b1bf357: REQUEST_CHANGESmodel: deepseek-flash
session: s1-2682-r2-11490272
head:
244b1bf357Seat 1 of 2, round 2. Every probe below ran in /tmp against throwaway repos with the tool taken from
f4ee5aafand from this head; nothing was executed in the pod and no PR was touched (the live ledger was only read, read-only).Resolutions
f4ee5aafwith the same repo and ledger gave rc 0 with ancla=smoke@commit and the empty-stream sha256. git_path_type answers tree for that path and a mode-160000 entry answers gitlink; git_blob_sha returns 3 in both (no hash printed).f4ee5aafrc 0 "ancla=suite@commit:docs/alt-suite.sh tests_run=3"; on this head rc 1 "este head NO tiene un smoke canonico COMMITEADO en ... NO puede pasar este head ... NO se admite una suite sustituta, ni commiteada; B2", with that line demoted to "evidencia (no suficiente)". The suite@commit branch is gone from the code and I could not reach a pass through any committed script.Blockers
Concerns
Non-regression (independent of 25(g))
Verdict of record — ld-reviewer — head
0d928e8848: REQUEST_CHANGESmodel: deepseek-flash
session: s2-2682-r3-033a7215
head:
0d928e8848Independent seat 2 of 2, ROUND 3 (adversarial), on the two commits of this round (
37202e7byte accounting,0d928e8the smoke-vs-suite wording). Everything below was measured in /tmp against throwaway git repos with the tool taken from this head; no pod was touched, no real ledger was read or written. The two findings are in the NEW output of0d928e8— B3 itself is closed, and I could not reopen B1/B2.Harness, solo, no concurrency:
bash scripts/gits-sbx-epic-test.sh→ 648 checks, 643 PASS, 5 FAIL, 6 SKIP. The 5 reds are exactly the known ones of other tickets (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod); §25[HOMELAB-2682] is 27/27 PASS, §24 green. CI on this head: runs #3225, #3226, #3227 — all pass.Blockers
task=on the verdict line is NOT the task of the line that passed: it is the task of the LAST line in the ledger.taskis read once per ledger line in the chain loop (gits-sbx-emu-proof.sh:1109) and is never re-read inside the candidate loop; the OK branch prints... suite=smoke ... task=$task ...(line 1340) with whatever the last line left behind, sook_line's own task is never used (unlikeok_class/ok_rel, which do come from the OK candidate). Measured, honest runs, no forgery: one head carrying the canonical smoke plus a committed route suite; line 1 =run --suite <smoke> --task smoke:connectedDebugAndroidTest, line 2 =run --suite docs/route-suite.sh --task route:connectedAndroidTest;check <head>prints... suite=smoke smoke_rel=<canonical> suite_relpath=<canonical> task=route:connectedAndroidTest ... linea=1. The verdict therefore asserts, in the words of this very delta, that the smoke passed AND that the run that passed was the ROUTE task — the exact reading the hypervisor split must forbid. It is not confined to one head: with the last line belonging to a DIFFERENT head the same field leaks across heads (check H1on a two-line ledger printedtask=route:app, the task of line 2, which is a line for H2). The reverse order hides it (when the smoke is the last line the field looks right), which is why the harness does not catch it.docs/gits-sbx/run-proof.mdnow states the opposite ("taskyclass… son los campos grabados en la línea"), so the doc is wrong too. Fix: captureok_task=$(jstr "$oc" task)next took_class/ok_reland print that in both the OK line and thePROOF suites:line; add a harness case with a foreign-suite line AFTER the canonical one on the same head and asserttask=is the smoke line's.ok_lineasPROOF otras corridas de este head en el ledger (NO son el smoke canonico, NO lo prueban): linea N suite_sha256=… result=… via=…without ever comparingscript_sha256to the anchor, so a red run of the canonical smoke is asserted to be NOT the canonical smoke. Measured: one head, canonical blob that exits 5 unless an env var is set; line 1 FAIL, line 2 OK; both carryscript_sha256=7c75c5358506…and the anchor blob hashes7c75c5358506…; the verdict printsotras corridas … (NO son el smoke canonico, NO lo prueban): linea 1 suite_sha256=7c75c5358506… result=FAIL. The row's sha is literally theancla_blobprinted three lines above, so the verdict contradicts itself and a reader (or the hypervisor) is told the red run was some other suite when it was the canonical smoke failing. This is the C1 of round 1 coming back with a wrong label: the FAIL row must say it is the canonical smoke, and it is RED (PROOF aviso el smoke CANONICO tambien corrio en ROJO en este head: linea N … result=FAIL rc=…, does not change rc), and only a row whose sha differs from the anchor may be called "otra suite".Resolutions
run --suitea zero-byte script →ERROR … el objeto DECLARA 0 bytes y la lectura devolvio 0 bytes (rc=1), rc 1, noancla=line at all; (b) the loose object of the anchor blob removed from the checkout's object DB (cat-file -tthen answerscould not get object infowhilels-treestill says100644 blob) →ERROR … DECLARA ? bytes y la lectura devolvio 0 bytes, rc 1. Both were rc 0 at244b1bf. The accounting is the thing that closes them:cat-file -sis compared with the bytes actually piped, zero or a mismatch is rc 1, and thee3b0c442…sentinel is a third, independent net.Concerns
cat-file blobread. A blob of the SAME declared size swapped in between the count and the hash read passes every check. Measured deterministically (no shim:run --suitea real fake that differs from the committed smoke by one byte in a comment, same byte length, socat-file -sis unchanged; then the loose object at the committed blob's oid is rewritten in place, chmod 444, with the fake's content at the same size):check <head>printsPROOF: OK … ancla=smoke@commit ancla_blob=8b4c4f2af5ea... suite_relpath=fuera-del-arbol ...rc 0, while the tree still points at oid 2a61e7cb31eb… whose committed content hashes3d191bf7c4e5…— the fake was never committed and did not run under any path of the tree; the same ledger without the swap is rc 1 (control). This is NOT B3's shape (it needs a writer inside the checkout's object DB, the same trust-root freedom as the accepted A2), but it defeats the one mitigation A1 named (the smoke is inside the pinned T7 diff set, so an honest review sees it): the reviewed diff shows the real smoke and the gate anchors on something else. It is also cheap to close and I would close it now: bind the content to the tree,[[ $(git -C "$tree" rev-parse "$rev:$rel") == $(git -C "$tree" cat-file blob "$rev:$rel" | git -C "$tree" hash-object -t blob --stdin) ]], or compare against the oid thatls-treealready returns ingit_path_type.-sand count reads are independent, socat-file -sfailing AFTER the type gate is answered by the|| return 1(rc 1, measured:DECLARA ? bytes y la lectura devolvio 351 bytes, fail-closed, no crash), a declared size in the 20-digit range is refused by the arithmetic (DECLARA 99999999999999999999 bytes, rc 1, no(( ))abort), truncating the COUNT read is refused (bytes<size) and truncating the HASH read is refused further down (the sha stops being 64 chars / stops matching the line). A partial pipe read cannot pass unnoticed:wc -ccannot undercount a stream that git produced in full, and undercounting refuses. Honest residue: none of these are reachable in a quiescent object store, and they are all fail-closed.git gc --prune=now+git repack -adqloop hammering the object store whilecheckran 40 times (content immutable, storage moves): 40/40 rc 0 with the correct anchor, 0 false passes, 0 spurious refusals. gc does not touch content, so the accounting survives it; the only lossy case is a content swap (C1), not a repack.tests_runon the smoke line can include another suite's XML. Pre-existing, not introduced here, but it matters for this split: with the route suite having run in the same second in the same worktree, the smoke's ownruncounted 9 tests (7 route + 2 smoke) because thefind -newermt @sincefilter has one-second granularity, andcheckfaithfully printedtests_run=9. Nothing false is printed (it is the line's number), but a reader takes 9 as the smoke's test count. Worth a harness case with a sleep or a-newermton nanosecond mtimes.# OTRAS CORRIDAS … El # veredicto no depende …, line 1355), so one line of the explanation is glued mid-sentence. Harmless to bash; ugly in a file whose comments are the contract.Attack results, for the record (beyond B3)
… EXISTE en … pero es un 'tree', NO un blob …; a GITLINK built withupdate-index --cacheinfo 160000to a commit absent from the object DB → rc 2… pero es un 'gitlink' …. Neither reaches the byte accounting.docs/alt-suite.shthat writes fake XML and exits 0 → rc 1este head NO tiene un smoke canonico COMMITEADO … NO se admite una suite sustituta, and that run is listed asOTRA SUITE (NO es el smoke canonico) … evidencia. Nosuite@commitform survives in the code or in the output.smoke(docs/tools-smoke-route.sh), run and committed, is always printed asOTRA SUITE (NO es el smoke canonico) … esta corrida NO prueba el head … el ancla es SOLO el smoke canonico commiteado— the wording holds against the name trick. A byte-identical COPY of the smoke at another path is correctly reported asla suite EJECUTADA vivio en <otra ruta> y es el smoke POR CONTENIDO (mismo sha256 que <ruta canonica>): NO es otra suite (ni la de route). A canonical smoke launched with--task route:…printssuite=smoke … task=route:…, which is honest (that is what was declared) and reads as the smoke becausesuite=smoke/suite_relpathname it; that case is fine — B4 is the one where the field is simply another line's.--scripton a different file with a canonical line → rc 0 withmontado=DISTINTOand theSECUNDARIO … NO es la compuertanote;--scriptequal to the commit's blob with no canonical line → rc 1.EMU_PROOF_SMOKE_RELPATHis a literal assignment, and its value is spliced into$rev:$rel— a head that lacks the constant path refuses (B2) regardless of what the env says, so nothing there is injectable.Nothing I could construct passes the gate outside the accepted class (a line for the requested head, chain recomputed from genesis,
via=run,tree_clean/tree_clean_aftertrue,result=OK,rc=0,tests_failed=0, integertests_run>0, capture and results binding intact,script_sha256equal to the blob of the constant path at H). B4 and B5 do not let a wrong head pass — they make the verdict say untrue things about WHICH run passed, which is the whole point of0d928e8and is why this round is red rather than green. Both are a handful of lines in the same block.Verdict of record — ld-reviewer — head
0d928e8848: REQUEST_CHANGESmodel: deepseek-flash
session: s1-2682-r3-8f31c7a4
head:
0d928e8848Seat 1 of 2, ROUND 3 delta (
37202e75+0d928e88). Every probe below ran in /tmp against throwaway git repos and the tool taken from this head and from244b1bf3; nothing was executed in a pod, no real PR was touched and no live ledger was written.Blockers
task=is not the OK line's task: it comes from the LAST line of the ledger.taskis assigned only in the chain-parse loop (tools/gits-sbx-emu-proof.sh:1109), the candidate loop that picks the verdict line never re-reads it, and unlikeclass/ancla_blob/suite_relpath(saved intook_class/ok_ssha/ok_relat :1290-1296) there is nook_task; the newsayat :1341 prints the stale global. Measured in /tmp: one ledger, line 1 = the canonical smoke on head H withtask=app:connectedDevDebugAndroidTest, line 2 = a later run on the same head withtask=app:connectedRouteAndroidTest;check Hgives rc 0 withlinea=1 … suite=smoke … task=app:connectedRouteAndroidTestand the follow-up line repeatstask=app:connectedRouteAndroidTest. So the verdict names the ROUTE task as the task that passed the head — the exact smoke-vs-other-suite confusion this delta was written to remove, now printed by the line that was supposed to end it. Independent confirmation of seat 2's B4 (filed at 22369), from a separate fixture. Fix is one saved field:ok_task=$tasknext took_class, and print that.BREAK=1run of the committed smoke (line 1,script_sha256=27babd5906e3…= the anchor blob,result=FAIL rc=5 tests_run=2), then a green run of the SAME suite (line 2) → rc 0 verdict printingPROOF otras corridas de este head en el ledger (NO son el smoke canonico, NO lo prueban): linea 1 suite_sha256=27babd5906e3... result=FAIL via=run. The line says the smoke is not the smoke; a reader cannot tell a red run of the canonical smoke from the route suite, and the live ledger has exactly that shape (heads with FAIL-then-OK re-runs). The sha is in hand (script_sha256vs the anchor) and the label should branch on it.Resolutions
core/manifests/apps/sbx-gits/tools/gits-sbx-emu-smoke.sh(cat-file -s= 0) plusrun --suitea zero-byte script: at244b1bf3the same repos compute the anchor ase3b0c442…(printed as "su blob hashea e3b0c44298fc...") — the empty-stream value the finding named; at this headcheckstops at the anchor, rc 1, "el objeto DECLARA 0 bytes y la lectura devolvio 0 bytes (rc=1) … CERO BYTES … B3". (b) the same repo with the canonical blob's loose object removed (cat-file -t→ "could not get object info",ls-treestill lists a 100644 blob, real smoke blob27babd5906e3…never read): rc 1, "el objeto DECLARA ? bytes y la lectura devolvio 0 bytes", naming the object DB and the canonical path. No new fallthrough: agitshim that truncates thecat-file blobstream to 10 bytes and still exits 0 gives rc 1, "el objeto DECLARA 420 bytes y la lectura devolvio 10 bytes"; a shim that makescat-file -slie by +3 gives rc 1, "DECLARA 423 … 420 …"; the real-git control on the same ledger gives rc 0. The empty-sha sentinel is in the code as a belt-and-braces second gate and the old deadsmoke_rc != 0branch is now reachable throughdie1(rc 1, correctly a verdict about the head, not adierc 2).Concerns
probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod), a sixth is20[phase1] mutaciones (mutacion-sbx-common-editado-sigue-verde mutacion-sendrast-editado-sigue-verde), and24[HOMELAB-2682] (4)and(8)are fixture artifacts of a checkout withoutorigin/live: both read$T2682E/ct-new.sh, which is only written inside theorigin/livebranch of case (3), so the fixture hashes the empty string and every such case dies withescrito e3b0c442…. Withorigin/livefetched the affected §24 cases and theT7[diff]/17[R159]comparisons are no longer SKIPped; I re-ran the suite and report its result on the ticket rather than claim a green I did not see. §25 itself was green in both runs: 27 PASS, 0 FAIL, including the new(f6),(f7)and(f8)/(f8b)— so the two B3 cases and the wording case are pinned as the brief asks.chain_textextracted fromorigin/liveand from this head produce the same sha256 for the 18-argument and the 20-argument forms (2590bf79…,493454fd…), and the 21-argument form only appendssuite_relpath=…afterclass=/results_sha256=. B1 and B2 refusals did not regress: a TREE at the canonical path still gives rc 2 ("es un 'tree', NO un blob"), a head without the canonical smoke still gives rc 1 with the B2 sentence and nosuite@commit, and a substitute suite that ran but is not the smoke still lands asOTRA SUITE (NO es el smoke canonico) … evidencia (no suficiente).suite=smoke smoke_rel=<canonical> suite_relpath=<executed|fuera-del-arbol> task=… class=-(plusclass=<fqcn>when the line declares it), aPROOF suites: … SMOKE CANONICO …line follows, and the OK of a byte-identical copy in another path gets its own sentence. The one thing missing is that the sentence covering "the copy is the smoke by content" is only printed whensuite_relpath != smoke_rel, whiletask/classin the same three lines are not bound to the line they claim to describe (B4).Verdict of record — ld-reviewer — head
4ce1268241: REQUEST_CHANGESmodel: deepseek-flash
session: seat2-ds-20261106T0221Z-7a3c4e
Asiento independiente 2 de 2, ronda fresca 1 (gate tooling). Todo lo de abajo lo medí yo contra repos de mentira en
/tmp— ningún PR, pod ni ledger real tocado. El delta de esta ronda (B4/B5/C1/C4) hace lo que dice en los cuatro puntos; el bloqueo es el límite que C1 afirma y no alcanza.Blockers
git replaceforjaancla=smoke@commit: congit replace <H> <F>(F un commit con OTRO smoke) + una corrida REAL de esa suite falsa sobre el head H,checkimprimePROOF: OK head=H … ancla=smoke@commit ancla_blob=<sha de la suite de F>— y elGIT_NO_REPLACE_OBJECTS=1 git cat-file blob H:<ruta>de ese mismo head hashea otra cosa.rev-parse <H>:<ruta>ycat-file blob <H>:<ruta>coinciden porque las dos lecturas siguen el replace del COMMIT: el oid contra el que se ata el contenido es el de la vista reemplazada, no el del commit H. Cuesta un comando local, no deja rastro en el PR (losrefs/replaceno se empujan) y rompe el invariante que este PR dice sostener ("una suite sustituta no desbloquea el merge", y la doc:ancla <ruta> … NO es configurable). No es una regresión de C1 (el agujero ya estaba antes: también comparaba concat-file), pero C1 es el commit que escribe la promesa "el ancla se ata al OID del árbol" y es donde la promesa tiene que ser verdad./tmp/seat2rev/replace-probe.sh): repo de mentira con el smoke v1 commiteado encore/manifests/…/gits-sbx-emu-smoke.sh(b35c7933…); commit F con otro smoke (538d59b9…);runde la suite de F sobre el árbol parado en H (línea honesta: cadena,tree_clean*, captura,results_sha256);check Hsin replace →PROOF: FAIL … no hay ninguna linea CANONICA … su blob hashea b35c7933…(correcto). Y con ungit replace H F→PROOF: OK head=3f925169ae64 … ancla=smoke@commit ancla_blob=538d59b9381e… montado=DISTINTO(rc=0). El montado incluso avisabaDISTINTO, es decir: el veredicto certificaba como "smoke commiteado" un contenido que el commit no lleva.rev-parseda el oid del árbol (d41e2380…) ycat-file blobdevuelve los bytes del reemplazo (5a76ce1d…de hash) →rc 1, mensaje C1 con los dos oids. Ese caso falla cerrado; el que no, es el del commit/árbol.export GIT_NO_REPLACE_OBJECTS=1en la herramienta (ogit --no-replace-objectsen las lecturas de objeto). Con el mismo estado forjado,GIT_NO_REPLACE_OBJECTS=1 check H→PROOF: FAIL … no hay ninguna linea CANONICA … b35c7933…,rc 1. De paso desaparece la falsa negativa del blob-replace. Un caso nuevo en §25 lo clava:git replace <H> <F>+runde la suite de F →checkdebe salir rojo nombrando el sha del commit.git replacepuede sustituir commit, árbol o blob; los grafts (.git/info/grafts) NO son vector aquí (sólo reescriben padres: conH→Fen grafts,rev-parse H:<ruta>sigue dando el oid real, medido).Resolutions
/tmp/seat2rev/b45-probe.sh, sin usar el harness): línea 1 = smoke canónico (task=smoke:canon, 2 tests), línea 2 = suite de route (task=route:connectedAndroidTest, 7 tests) →PROOF: OK … task=smoke:canon … tests_run=2 … linea=1. Orden inverso con la canónica en la línea 2 de 3 →task=smoke:canon … tests_run=3 … linea=2. Eltask=sale de LA línea que pasa;tests_run/output_sha256también (7 no aparece en ningún veredicto). El caso "OK no es la última línea" está cubierto: el bucle para en la canónica limpia yok_taskse asigna ahí.ok_taskno puede salir vacío:taskestá en la lista demissingde la cadena, así que una línea sintasknunca llega al veredicto (comprobado en el código y por rechazo de una línea contaskvacío).rc 5, mismoscript_sha256que el ancla) + canónico verde → veredicto OK de la línea limpia yPROOF aviso el smoke CANONICO TAMBIEN CORRIO EN ROJO en este head: linea 1 result=FAIL rc=5 … = el ancla_blob de arriba. Orden inverso (verde primero, rojo después) → idéntico aviso desde el bloque de "otras corridas". Una suite distinta sigue diciéndosesu sha256 NO es el ancla_blob (…)…: es OTRA suite. El caso "vieja línea sinscript_sha256" no puede llegar a ese bloque:script_sha256es campo requerido de la cadena (missing) y el check entero se corta conle faltan campos— no hay crash, hay rechazo del ledger.rc 1y mensaje con los dos oids (el arbol declara el oid … y los bytes que se leen de ese oid hashean como …); verificado también con la vía "objeto borrado del object DB" →rc 1,el objeto DECLARA ? bytes y la lectura devolvio 0 bytes(B3 intacto, motivo verdadero). ConGIT_NO_REPLACE_OBJECTS=1la promesa pasa a ser literalmente cierta (ver B6).chain_textact-new.shes ahora incondicional (justo después de crear$T2682E, fuera delifde la comparación conorigin/live); la comparación sigue condicional. Un clon sin la reforigin/liveya no puede false-rojo (4)/(8).rc 2,pero es un 'tree', NO un blob(no hashea tubería vacía); B2 head sin el smoke →rc 1,este head NO tiene un smoke canonico COMMITEADO …y ninguna mención deancla=suite@commit; una suite commiteada en ese árbol (docs/route.sh) sale comoevidencia (no suficiente)(rc 1); B3 vacío/borrado →rc 1con los números; byte-compat:chain_textextraído deorigin/livey de este head da el MISMO sha256 con 18 args y con 20 (clase +results_sha256); A1:ancla_blob=ymontado=IGUAL|DISTINTOen la línea del veredicto (visto en los dos estados); wording de distinción (OTRA SUITE (NO es el smoke canonico),evidencia (no suficiente),TAMBIEN CORRIO EN ROJO) presente.bash scripts/gits-sbx-epic-test.shcorriendo SOLO (worktree limpio en/tmp/seat2rev/wt, head4ce1268). Al cerrar esta revisión iba por §18 de 25 con 388 PASS / 5 FAIL, y los 5 son exactamente los rojos conocidos y de otro ticket que declara el PR (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod). Ningún rojo nuevo en lo corrido; §22/§24/§25 seguían en vuelo y su substancia (§24 (4)/(8), §25 (a)–(g), (f9), (f10), (f11)) la reproduje yo de forma independiente con las pruebas de arriba, no sólo leyendo su PASS.Concerns
ancla=suite@commit:<ruta>" y lista §25 (f)/(f2) como "la suite commiteada es el ancla". En el head no existe tal camino (sólo queda un comentario que explica por qué se quitó), la doc derun-proof.mdya dice lo contrario, y el harness (f) ahora falla si el veredicto nombrasuite@commit. Consecuencia práctica, medida: en un árbol sin el smoke (el caso de GITS,Homelab/ghostty-in-the-shell) la compuerta no puede pasar ese head — es la decisión (a)/(b) que el cuerpo pide al operador, y hoy está tomada a favor del rechazo, no "resuelta con un respaldo". El cuerpo hay que reescribirlo antes de que alguien lo lea como "GITS ya puede pasar rung 2 tras una re-corrida".suite_relpath)" mientras el caso (f) comprueba lo contrario (B2). Drift de contrato dentro del test; una línea.git hash-object -t blob -- "$tf"corre en el repo del cwd, no con-C "$tree": si el cwd de la compuerta fuese un repo con otro formato de objeto (--object-format=sha256), el oid calculado (64 hex) nunca puede igualar el del árbol (40 hex) →rc 5con un mensaje que acusa al object DB. Fail-closed, pero motivo falso;git -C "$tree" hash-object …lo hace verdad. Medido: en un repo sha256hash-objectdevuelve 64 hex aunque el archivo sea el mismo.tests_rundel veredicto suma el directorio de resultados ACUMULADO del árbol: en mi caso 2 la suite canónica declarabatests="2"y el veredicto imprimiótests_run=3, porque el XML de la corrida anterior de la suite de route seguía en<tree>/app/build/…. Elresults_sha256por corrida sí ata las copias, pero el número del veredicto no es "de esta suite". Pre-existente y fuera del delta; anotado por si el número se usa para leer "cuántas pruebas pasaron".Verdict of record — ld-reviewer — head
4ce1268241: REQUEST_CHANGESmodel: deepseek-flash
session: 880adf70-41e1-45a4-953b-30a564801445
Independent review seat 1 of 2, fresh round 1 (gate tooling), scoped to the delta
0d928e88..4ce12682overcore/manifests/apps/sbx-gits/tools/gits-sbx-emu-proof.sh,docs/gits-sbx/run-proof.md,scripts/gits-sbx-epic-test.sh. Read from primary sources only: the diff at that head, the tool as committed at that head, and a solo run of the repo harness in a worktree pinned to that head. Nothing was written to the repo, the cluster or any live ledger.Blockers
refs/replace, so the commit the gate proves is not the commit it names. I reproduced it independently at this head: in a scratch repo, commit A carries the canonical smoke with contentv1, commit B carriesv2-FORGED; aftergit replace B A,rev-parse B:<rel>andcat-file blob B:<rel>BOTH resolve through the replacement (626799f0…, contentv1), so the C1 binding (rev-parseoid ==hash-object -t blobof the read content) agrees with itself and a line recorded against A's blob passes the gate while claiming head B. WithGIT_NO_REPLACE_OBJECTS=1the real blob is4fcd3429…. So the fix direction seat 2 verified (GIT_NO_REPLACE_OBJECTS=1, and/or refusing a checkout that carriesrefs/replace/*) is needed: the anchor must be the immutable object graph of the head, not a rewritten view of it. Filed by seat 2 as 22405; recorded here because it is open at this head and it defeats the property this PR exists to establish.Resolutions
ok_taskis a new local incmd_check, assignedok_task=$(jstr "$c" task)inside the branch that setsok_line/ok_class/ok_anchor, immediately beforebreak, and both OK lines (PROOF: OK … task=$ok_task) and thePROOF suites:sentence use it; the chain-loop localtaskis no longer reachable from the OK output. Reproduced by hand outside the fixtures: ledger with the canonical smoke run astask=smoke:connectedDebugAndroidTeston line 1 and a committed route suite astask=route:connectedAndroidTeston line 2, same head — the verdict line readssuite=smoke … task=smoke:connectedDebugAndroidTest … linea=1and the route run is only reported as an additional run. The doc assertion matches (run-proof.md: task/class are the fields recorded in the line that passes the head, not the last ledger line).script_sha256with$smoke_shaand branches intoPROOF aviso el smoke CANONICO …(OK and red variants) or the foreign-suite line whose text now also carries the anchor it was compared against (su sha256 NO es el ancla_blob (…)). Reproduced by hand: a red run of the canonical smoke (same blob) followed by a green one on the same head printsPROOF aviso el smoke CANONICO TAMBIEN CORRIO EN ROJO en este head: linea 1 result=FAIL rc=5 via=run suite_sha256=1f942e02… = el ancla_blob de arriba, and nootras corridas … result=FAILline is emitted. A genuinely different suite still reads asOTRA SUITE (NO es el smoke canonico) … evidencia.git_blob_sharesolvesoidwithrev-parse --verify "$rev:$rel", reads the object ONCE into amktempfile, counts those same bytes, then binds them withgit hash-object -t blob -- "$tf"and returns rc 5 on mismatch, whichcmd_checkturns into a named refusal quoting both oids. Reproduced by hand: after copying a same-size (321 B, size preserved after the swap) foreign blob over the object named by the tree entry,checkexits rc 1 withapunta a un OBJETO que NO es su contenido … el arbol declara el oid 52aa64bb… y los bytes que se leen de ese oid hashean como e6b43a79…and prints no verdict line.chain_textfixture for this branch is extracted unconditionally at fixture setup, outside theorigin/liveconditional, so the two cases that read it no longer depend on a git ref being present; the live comparison itself stays conditional and still passes here (18-arg and 20-arg texts byte-identical toorigin/live, the new field only adding the 21st line).Prior closures still bite, re-measured at this head: the blob-type refusal, the no-canonical-path fail-closed and the empty/corrupt-anchor byte accounting are all exercised and green in the §25 cases; a substitute suite still never passes; the live 21-line ledger byte compatibility is green (the whole ledger section, 90 checks, 0 failures); the mount-divergence signal prints.
Harness, run solo in a worktree at this exact head: 651 checks, 646 PASS, 5 FAIL, 6 SKIP. The 5 reds are the known pre-existing ones from other tickets (the empty pre-existing
--dirprobe,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod— all resource/image expectations of other work, none touching this diff). Green here: §25 (30/0, including the three round-3 cases f9/f10/f11), §24 (25/0),T7[diff]including both mutation cases, and 17[R159] (29/0). No timing red this run; the six skips are absent sandbox/prod refs, not this change.Concerns
git hash-objectis invoked without-C "$tree", so the object format comes from the process CWD rather than from the checkout being checked. Ifcheckever runs with a CWD inside a SHA-256 repository, the computed oid would be 64 hex while the tree's oid is 40, and every anchor check would refuse rather than pass — fail-closed, but a false red with a misleading message.git -C "$tree" hash-object -t blob -- "$tf"would bind the same way with the tree's own format.ct-new.shwritten under the same[[ -f … ]] &&guard at fixture time, which is fine), so the two sections now differ in shape; worth one helper if a third section needs it.run-proof.md, and it is stated in the output text — recording it here only so the landing note says it out loud.head:
6d44b962d8Independent seat 2 of 2, ROUND 2 of the fresh round (adversarial), on the B6 delta
4ce12682..6d44b962plus the two riders (git hash-object -C "$tree",ok_tests_run). Everything below was measured in/tmpagainst throwaway git repos with the tool taken from this head; no pod, no PR, no real ledger was touched, and nothing was written outside/tmp.Sweep, first-hand: the plain replace is closed, and closed properly. With a repo whose head H commits the smoke
v1(e28b9496…, sha2569a3f7c6c88ff…) and a commit F carrying another smoke, plus a genuinerunof F's suite on the tree parked at H,check Hgives rc 0 withancla_blob=<F's suite>on the tool at4ce12682(the original defect reproduced) and rc 1 naming H's real blob on this head — for all four shapes I built: commit-level replacegit replace H F, tree-levelgit replace <H^{tree}> <F^{tree}>, blob-levelgit replace <blob_H> <blob_F>(caught twice, by the flag and by the C1 oid binding), and chainedH→F→F2(third content). No anchor-path read is left unprefixed: every one goes throughgit_obj, the four plaingitcalls that remain (status,rev-parse --abbrev-ref,remote get-url,rev-parse --git-dir) are inherited from the export and none of them feeds the anchor, and the file contains noenv -i/sudo/sh -c/xargs/evalthat could strip the environment. The mid-check race for replace refs is genuinely closed, not papered over: the flag is fixed per process at startup, so a replace created before, during or after the check changes no read. What is not closed is one line of the checkout's own config — see B7.Harness, solo, no concurrency, in a worktree pinned to this head: still in flight at the moment of posting (§20 of 25) — 479 PASS, 5 FAIL, 0 unexpected, the five reds being exactly the known ones of other tickets (
probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod). I am not claiming the final total; the sections that matter for this delta (24, 25) had not been reached yet.Blockers
GIT_NO_REPLACE_OBJECTS=1is not authoritative, so B6 is still reachable with one more local command, and in that state the verdict forges the anchor and prints a false statement about what it read.core.useReplaceRefsis read from config after git sets the flag from the environment, so the checkout can turn replacements back on. Measured on git 2.39.5: withgit replace H Fin place,GIT_NO_REPLACE_OBJECTS=1 git rev-parse H:<rel>answers H's real blobe28b9496…; addgit config core.useReplaceRefs trueand the same command answers F's blob5c9a1805….git --no-replace-objects(the alternative offered in round 1) is defeated identically; onlygit -c core.useReplaceRefs=falsewins, because it is applied after the file config.v1committed at the canonical path, commit F with another smoke, an honestrunof F's suite on the tree parked at H (script_sha256=0d037b77a093…, chain intact, capture bound,tree_clean=trueboth sides). Thengit replace H F+git config core.useReplaceRefs true→check HprintsPROOF: OK head=H … ancla=smoke@commit ancla_blob=0d037b77a093… tests_run=2, rc 0, i.e. the head's canonical smoke certified as a suite H does not carry — and in the same output the new line asserts "el checkout tiene refs/replace (git replace): el check las IGNORA (GIT_NO_REPLACE_OBJECTS=1) y lee el object store REAL". The same state without the config line is rc 1 (b35c7933-style refusal naming H's real blob9a3f7c6c88ff…), and the tool at4ce12682is rc 0 in both states — so the delta closes the named case and the config line reopens it verbatim. That false aviso is worse than silence: it tells the reader the forgery is impossible..git/configis the same privilege as writingrefs/replace(both local, both unpushed, no trace in the PR),git status --porcelaindoes not see it, andchecknever re-measures the tree — it reads the fields recorded in the line — so planting it after an honest run leavestree_clean/tree_clean_aftertrue.runadditionally EXECUTES tree-controlled code, so the plant can even arrive without a separate command.git_obj() { GIT_NO_REPLACE_OBJECTS=1 git -c core.useReplaceRefs=false "$@"; }→ back to H's real blobe28b9496…. Keep the export as the wide net and add the-cas the belt; the AVISO should then be true as written. It costs one clause. The check's git version in the pod should be recorded when it lands (core.useReplaceRefshas existed since git 2.30; I measured 2.39.5 on the mgmt VM).core.useReplaceRefs trueon the fixture repo and still require rc 1.Resolutions
git replace H F), tree-level (<H^{tree}> → <F^{tree}>) and chained (H→F→F2), each with a genuinerunof the foreign suite and each rc 1 on this head naming H's real blob, against rc 0 on4ce12682with the same fixtures; blob-level replace was already caught by the C1 binding and now fails at the flag first. NOT resolved for thecore.useReplaceRefsvariant — that is B7 above.Concerns
--no-replace-objectsmust not be used as the remedy: it is defeated by the same config exactly like the environment variable, so a fix written that way would look green in §25 and stay forgeable. The-c core.useReplaceRefs=falseform is the one that holds (measured both ways).PROOF: OKlines.git hash-object -C "$tree"— verified correct, and it was a real defect: with the CWD being a--object-format=sha256repo, the tool at4ce12682refuses this same honest state rc 1 with the FALSE C1 sentence ("apunta a un OBJETO que NO es su contenido", 64-hexcoidvs the 40-hex tree oid,bee1a78c…), and this head gives rc 0 from that CWD and from a non-repo CWD. No regression.ok_tests_run— verified against three multi-line ledgers on the same head: canonical(2) then foreign(3) →task=andtests_run=2fromlinea=1; foreign(3) then canonical(2) →linea=2,tests_run=2; canonical on H1(2) then a line for ANOTHER head H2(5) →linea=1,tests_run=2, no cross-head leak. Therun-side pre-scan also holds outside the harness: consecutive runs in the same tree report 2 and 3 cases for 2- and 3-case suites, not the accumulated directory.tree; a head without the named smoke → rc 1 "NO tiene un smoke canonico COMMITEADO"; zero-byte committed blob → rc 1 with the byte count; loose object deleted → rc 1 with the byte count; same-size object swap in the object DB → rc 1 naming the oid; a red run of the canonical smoke followed by a green one → rc 0 whose verdict says, in those words, that line 1 IS the canonical smoke and is RED. No regression from this delta.Verdict of record — ld-reviewer — head
6d44b962d8: REQUEST_CHANGESmodel: deepseek-flash
session: seat2-ds-20261106T0250Z-b7f3a1
head:
6d44b962d8Independent seat 2 of 2, ROUND 2 of the fresh round (adversarial), on the B6 delta
4ce12682..6d44b962plus the two riders (git hash-object -C "$tree",ok_tests_run). Everything below was measured in/tmpagainst throwaway git repos with the tool taken from this head; no pod, no PR, no real ledger was touched, and nothing was written outside/tmp.Sweep, first-hand: the plain replace is closed, and closed properly. With a repo whose head H commits the smoke
v1(e28b9496…, sha2569a3f7c6c88ff…) and a commit F carrying another smoke, plus a genuinerunof F's suite on the tree parked at H,check Hgives rc 0 withancla_blob=<F's suite>on the tool at4ce12682(the original defect reproduced) and rc 1 naming H's real blob on this head — for all four shapes I built: commit-level replacegit replace H F, tree-levelgit replace <H^{tree}> <F^{tree}>, blob-levelgit replace <blob_H> <blob_F>(caught twice, by the flag and by the C1 oid binding), and chainedH→F→F2(third content). No anchor-path read is left unprefixed: every one goes throughgit_obj, the four plaingitcalls that remain (status,rev-parse --abbrev-ref,remote get-url,rev-parse --git-dir) are inherited from the export and none of them feeds the anchor, and the file contains noenv -i/sudo/sh -c/xargs/evalthat could strip the environment. The mid-check race for replace refs is genuinely closed, not papered over: the flag is fixed per process at startup, so a replace created before, during or after the check changes no read. What is not closed is one line of the checkout's own config — see B7.Harness, solo, no concurrency, in a worktree pinned to this head: still in flight at the moment of posting (§20 of 25) — 479 PASS, 5 FAIL, 0 unexpected, the five reds being exactly the known ones of other tickets (
probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod). I am not claiming the final total; the sections that matter for this delta (24, 25) had not been reached yet.Blockers
GIT_NO_REPLACE_OBJECTS=1is not authoritative, so B6 is still reachable with one more local command, and in that state the verdict forges the anchor and prints a false statement about what it read.core.useReplaceRefsis read from config after git sets the flag from the environment, so the checkout can turn replacements back on. Measured on git 2.39.5: withgit replace H Fin place,GIT_NO_REPLACE_OBJECTS=1 git rev-parse H:<rel>answers H's real blobe28b9496…; addgit config core.useReplaceRefs trueand the same command answers F's blob5c9a1805….git --no-replace-objects(the alternative offered in round 1) is defeated identically; onlygit -c core.useReplaceRefs=falsewins, because it is applied after the file config.v1committed at the canonical path, commit F with another smoke, an honestrunof F's suite on the tree parked at H (script_sha256=0d037b77a093…, chain intact, capture bound,tree_clean=trueboth sides). Thengit replace H F+git config core.useReplaceRefs true→check HprintsPROOF: OK head=H … ancla=smoke@commit ancla_blob=0d037b77a093… tests_run=2, rc 0, i.e. the head's canonical smoke certified as a suite H does not carry — and in the same output the new line asserts "el checkout tiene refs/replace (git replace): el check las IGNORA (GIT_NO_REPLACE_OBJECTS=1) y lee el object store REAL". The same state without the config line is rc 1 (b35c7933-style refusal naming H's real blob9a3f7c6c88ff…), and the tool at4ce12682is rc 0 in both states — so the delta closes the named case and the config line reopens it verbatim. That false aviso is worse than silence: it tells the reader the forgery is impossible..git/configis the same privilege as writingrefs/replace(both local, both unpushed, no trace in the PR),git status --porcelaindoes not see it, andchecknever re-measures the tree — it reads the fields recorded in the line — so planting it after an honest run leavestree_clean/tree_clean_aftertrue.runadditionally EXECUTES tree-controlled code, so the plant can even arrive without a separate command.git_obj() { GIT_NO_REPLACE_OBJECTS=1 git -c core.useReplaceRefs=false "$@"; }→ back to H's real blobe28b9496…. Keep the export as the wide net and add the-cas the belt; the AVISO should then be true as written. It costs one clause. The check's git version in the pod should be recorded when it lands (core.useReplaceRefshas existed since git 2.30; I measured 2.39.5 on the mgmt VM).core.useReplaceRefs trueon the fixture repo and still require rc 1.Resolutions
git replace H F), tree-level (<H^{tree}> → <F^{tree}>) and chained (H→F→F2), each with a genuinerunof the foreign suite and each rc 1 on this head naming H's real blob, against rc 0 on4ce12682with the same fixtures; blob-level replace was already caught by the C1 binding and now fails at the flag first. NOT resolved for thecore.useReplaceRefsvariant — that is B7 above.Concerns
--no-replace-objectsmust not be used as the remedy: it is defeated by the same config exactly like the environment variable, so a fix written that way would look green in §25 and stay forgeable. The-c core.useReplaceRefs=falseform is the one that holds (measured both ways).PROOF: OKlines.git hash-object -C "$tree"— verified correct, and it was a real defect: with the CWD being a--object-format=sha256repo, the tool at4ce12682refuses this same honest state rc 1 with the FALSE C1 sentence ("apunta a un OBJETO que NO es su contenido", 64-hexcoidvs the 40-hex tree oid,bee1a78c…), and this head gives rc 0 from that CWD and from a non-repo CWD. No regression.ok_tests_run— verified against three multi-line ledgers on the same head: canonical(2) then foreign(3) →task=andtests_run=2fromlinea=1; foreign(3) then canonical(2) →linea=2,tests_run=2; canonical on H1(2) then a line for ANOTHER head H2(5) →linea=1,tests_run=2, no cross-head leak. Therun-side pre-scan also holds outside the harness: consecutive runs in the same tree report 2 and 3 cases for 2- and 3-case suites, not the accumulated directory.tree; a head without the named smoke → rc 1 "NO tiene un smoke canonico COMMITEADO"; zero-byte committed blob → rc 1 with the byte count; loose object deleted → rc 1 with the byte count; same-size object swap in the object DB → rc 1 naming the oid; a red run of the canonical smoke followed by a green one → rc 0 whose verdict says, in those words, that line 1 IS the canonical smoke and is RED. No regression from this delta.(Format note, mine: comment 22419 carries the same findings with the verdict header missing — I posted it seconds earlier without the first block the lock reads. This comment is the complete verdict of record and supersedes it; 22419 is left in place, not edited and not deleted.)
Verdict of record — ld-reviewer — head
6d44b962d8: REQUEST_CHANGESmodel: deepseek-flash
session: s1-2682-r2d-20261106T0305Z-9c41ab
head:
6d44b962d8Independent seat 1 of 2, ROUND 2 delta (gate tooling), scoped to
4ce12682..6d44b962overcore/manifests/apps/sbx-gits/tools/gits-sbx-emu-proof.sh,docs/gits-sbx/run-proof.mdandscripts/gits-sbx-epic-test.sh. Everything below was measured in/tmpagainst throwaway git repos, with the tool taken from this head and from4ce12682; nothing was executed in a pod, no live ledger was read or written, and no PR was touched.B6 is closed — I reproduced the forgery at the old head and it now fails closed, with the honest control still passing. What keeps this at changes-requested is one new harness case that can never pass, which also falsifies the harness table in the PR description; the gate code itself is sound on every other dimension I attacked.
Blockers
25[HOMELAB-2682] (f13)can never pass, and the solo run therefore reports a red that is NOT one of the known pre-existing ones.t2682a_fieldreads QUOTED values only (sed -n "s/.*\"$2\":\"\([^\"]*\)\".*/\1/p", scripts/gits-sbx-epic-test.sh:13021) whiletests_runis a JSON NUMBER, soF13_RUNcomes back EMPTY and the assertion[[ $F13_RUN != 2 ]]fires unconditionally. Measured, solo, no concurrency, in a worktree pinned to this head:bash scripts/gits-sbx-epic-test.sh→ RESULT: FAIL (6 of 653 checks failed, 6 skipped, 0 pending), and the sixth red isFAIL 25[HOMELAB-2682] (f13) la LINEA de la corrida cuenta casos y la suite deja 2: …— note the empty field in the message. The five others are the known pre-existing reds of other tickets (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod); the timing case did not reproduce. §25 is20 PASS / 1 FAIL, not 0 FAIL, and §24 is green (56 PASS across §24+§25).<tree>/app/build/outputs/androidTest-results/…and then running the canonical smoke: at this head the LINE says"tests_run":2; at4ce12682, same repos, the line says"tests_run":7. So the pre-scan does what the comment claims. Only the assertion is broken.sed -n 's/.*"tests_run":\([0-9]*\).*/\1/p', or maket2682a_fieldfall back to the unquoted form), then re-run solo and correct the harness table in the PR body — it still says641 comprobaciones, 635 PASS, 6 FAIL, 6 SKIPand§25 … 20 PASS / 0 FAIL, and neither matches this head. A permanently-red assertion in the epic harness costs the next reader exactly the signal that distinguishes a known pre-existing red from a new one, which is why I am not filing this under Concerns.Resolutions
v1(1647e2cf…) committed atH=a2edc4e6…; a second commitF=0f25bec7…carrying a DIFFERENT smokev2(d77c37f0…); the tree parked back atH; a GENUINErun --suite <F's smoke>on that tree (chain,tree_clean*, capture,results_sha256all real, linescript_sha256=d77c37f0…). At4ce12682:check HWITHOUT the replace → rc 1 (no hay ninguna linea CANONICA … su blob hashea 1647e2cf…), and with ONEgit replace H F→ rc 0,PROOF: OK … ancla=smoke@commit ancla_blob=d77c37f080db… montado=DISTINTO— the forgery, reproduced first-hand. At this head, same repo, replace still installed → rc 1,PROOF: FAIL (a2edc4e6…),no hay ninguna linea CANONICA … 1647e2cf…(the REAL blob ofH), plusPROOF AVISO el checkout '…' tiene refs/replace (git replace): el check las IGNORA.git_obj() { GIT_NO_REPLACE_OBJECTS=1 git "$@"; }(:435) plusexport GIT_NO_REPLACE_OBJECTS=1(:172). Every read the anchor is built from goes through it —git_head(:438),git_path_type'scat-file -tandls-treefallback (:456-475), and ingit_blob_shatherev-parse --verify,cat-file -s, the singlecat-file blobread into the temp file and thehash-object -t blobbinding (:531-580) — as do the C1 and B3 diagnostics (:1201-1218), thecat-file -e "$headarg^{commit}"gate (:1146) and the newfor-each-ref refs/replaceprobe. The only plaingitcalls left arestatus --porcelain(tree_clean),rev-parse --abbrev-ref HEAD,remote get-url(banner) andrev-parse --git-dir(existence) — none of them feedssmoke_sha, and replace refs do not move any of them. I found no bypass left in the anchor path.git replace <H^{tree}> <F^{tree}>) forges identically at the old head (rc 0,ancla=smoke@commit) and is rc 1 at this head. A BLOB-level replace is ignored at this head (rc 0 with the real1647e2cf…) where the old head gave the false negative rc 1 that B6's note described — so the fix removes a wrong refusal as well as the forgery.H's own smoke) gives rc 0 both with a straygit replace H Finstalled and without it — the substitution is IGNORED, the checkout is not rejected, which is the property the docs now state./tmp, after thegit_objchange): B1 a DIRECTORY at the canonical path → rc 2 naming'tree'; B2 an app-style tree with a committedscripts/alt-suite.shthat ran → rc 1este head NO tiene un smoke canonico COMMITEADO … NO se admite una suite sustituta, ni commiteada; B2, the run demoted toevidencia (no suficiente), and nosuite@commitform anywhere; B3a a zero-byte file at the canonical path + a zero-byte suite → rc 1DECLARA 0 bytes …; B3b the canonical blob's loose object removed → rc 1DECLARA ? bytes y la lectura devolvio 0 bytes; B4 canonical smoke on line 1 (task=smoke:connectedDebugAndroidTest) and a foreign route suite on line 2 → rc 0 withtask=smoke:connectedDebugAndroidTest … tests_run=2 … linea=1and line 2 reported asotras corridas … su sha256 NO es el ancla_blob … es OTRA suite; B5 a RED run of the canonical smoke followed by a green one → rc 0 withPROOF aviso el smoke CANONICO TAMBIEN CORRIO EN ROJO en este head: linea 1 result=FAIL rc=5 … = el ancla_blob de arriba; C1 a same-size (405 B) foreign blob copied over the oid the tree declares → rc 1 quoting both oids.chain_textextracted fromorigin/liveand from this head differ only in comments and the optional 21st field. Numerically, the 18-arg form hashes4e7bb549…and the 20-arg formfca31765…on BOTH (identical), while the 21st argument only appendssuite_relpath=…(fe09fd95…). The 21 live ledger lines keep validating.--scriptpointing at a different file the OK line carriesmontado=DISTINTOand thePROOF SECUNDARIO el fichero MONTADO … NO es la compuertaline, rc unchanged — verified on a head whose canonical line passes.hash-object -C "$tree"(concern from round 1): the motive is real and the fix works. With the CWD inside a scratch repo created with--object-format=sha256and the honest ledger for a sha1 tree, the old tool exits rc 1 with the FALSE reason (… apunta a un OBJETO que NO es su contenido … hashean como e0ef462c…— a 64-hex oid from the CWD repo), and this head exits rc 0. When the content genuinely differs, the-C "$tree"form still names the true mismatch (C1 above).(f)/(f2)header no longer promises ansuite@commitfallback,run-proof.mdsays the anchor is the smoke COMMITTED in that head with "no hay respaldo, B2", documents theGIT_NO_REPLACE_OBJECTSreads and therefs/replaceaviso, and thetests_runrow now excludes the accumulated directory.Concerns
ancla=suite@commit:<ruta>, "hay una segunda forma de ancla … la suite COMMITEADA en ese head"), still lists case "(f)/(f2) árbol sin la herramienta (tipo app): la suite commiteada es el ancla", and still reports the pre-delta harness numbers. The in-tree docs are right, so this is stale prose, not a code defect — but it is the text the operator and the landing worker read before deciding, and today it promises a route the gate refuses.ok_tests_runis defensive, not a fix. At4ce12682the verdict ALREADY printed the OK line's count (tests_run=2with a later 7-case line on the same head), becausetests_runis re-read per candidate at :1366 and the loop breaks on the canonical line; the new field changes no output I could construct. Harmless hardening, but the delta's comment reads as if it repaired a live misattribution, and a future reader may look for a repro that does not exist.cp -p, or two runs of the same suite inside one coarse-grained timestamp tick. Neither shape is plausible for the real smoke (it writes fresh XML, and ext4/overlayfs keep nanosecond mtimes), so I did not gate on it; worth one line in the doc'stests_runrow if anyone hits it.GIT_NO_REPLACE_OBJECTS=1is exported process-wide, so the suite thatrunexecutes inherits it too. That is what the comment intends, and no suite in this repo uses replace refs, but it is a visible behaviour change for anything run through the gate — worth knowing if a future suite ever relies ongit replacefor a bisect-style comparison.Reviewer limits respected: no file was edited, nothing committed or pushed, and this is the only record I posted for this head.
Delta pushed for round 3 — head
b9ce8fc7b1(fast-forward from6d44b962, no force-push).NOT a verdict — posted by pi-landing (the shipper), not by a review seat. Seats: this is the head to read.
What it answers:
GIT_NO_REPLACE_OBJECTS=1is not authoritative:core.useReplaceRefsis read from config after git fixes the flag from the environment, so one line in the checkout's own.git/configre-opened the B6 forgery and also left theAVISOline lying about what had been read.git --no-replace-objectsis defeated identically.git_objnow carries both:GIT_NO_REPLACE_OBJECTS=1 git -c core.useReplaceRefs=false "$@", and every git call in the tool goes through it (the four remaining plain calls —status,rev-parse --abbrev-ref,remote get-url,rev-parse --git-dir— converted too). TheAVISOtext now names both levers.A/B measured on git 2.39.5, throwaway repo, smoke
v1committed at H, commit F with another smoke, honest run of F's suite on the tree parked at H, thengit replace H F+core.useReplaceRefs true: an env-only build of the tool gives rc 0PROOF: OK(the forgery, reproduced), this head gives rc 1 "su blob hashea b77ae2875a50…" — H's real blob.core.useReplaceRefs=trueinto the throwaway repo's config, re-runs the same forged check, requires rc 1 naming H's real blob, and unsets it afterwards (the fixture is reused by (f12c)).t2682a_fieldonly read QUOTED values whiletests_runis a NUMBER, soF13_RUNwas empty and the assertion fired unconditionally. It now falls back to the numeric form. The behaviour under test was already right (pre-seeded accumulated XML →tests_run=2here,7at4ce12682); only the assertion was broken. Its pass message also no longer leaves backticks unescaped (it was executingtests_run,-newermt @startandresults_sha256as commands and printing "el es de ESTA corrida").Re-measure of the full harness solo is running now; the PR body's numbers table and the stale
ancla=suite@commitfallback text are being corrected in the same pass.Verdict of record — ld-reviewer — head
b9ce8fc7b1: APPROVEmodel: deepseek-flash
session: seat2-ds-r3f-20261106T0325Z-7b81c4
head:
b9ce8fc7b1Seat 2 of 2, ROUND 3 FINAL (adversarial), scoped to the delta
6d44b962..b9ce8fc7(B7 +git_objeverywhere + the(f13)numeric extraction + PR body). Everything below was measured in/tmpagainst throwaway git repos with the tool taken from THIS head (and, where stated, from6d44b962); no pod was written to, no PR was touched, no real ledger was read or written. The pod was used READ-ONLY (kubectl exec, item 2).Blockers
None.
Resolutions
Hcommits the smokeSMOKE-A(404d465f…) at the canonical relpath, plus a commitFcarryingSMOKE-B(1b20579e…), tree parked back atH. Withgit replace H Fandgit config core.useReplaceRefs trueinstalled, measured on git 2.39.5: a plain read answers the FORGED view —rev-parse H:<rel>→4b21e175…(F's blob),cat-file blob H:<rel>→SMOKE-B— and exactly the same command undergit_obj(GIT_NO_REPLACE_OBJECTS=1 git -c core.useReplaceRefs=false …) answersf4d0e01a…/SMOKE-A, i.e. H's real blob. So both def defenses are needed and the pair holds: I also confirmed the reasoning the code documents —GIT_NO_REPLACE_OBJECTS=1 git …alone andgit --no-replace-objects …alone both returnSMOKE-Bunder the config lever (defeated), which is why the-cis the one that matters.GIT_CONFIG_COUNT=1 GIT_CONFIG_KEY_0=core.useReplaceRefs GIT_CONFIG_VALUE_0=trueandGIT_CONFIG_PARAMETERS="'core.useReplaceRefs=true'"— the two env-config injections that outrank the file config and could in principle outrank-c— do NOT beat it: both still answerSMOKE-A(the real blob) undergit_obj. File-based config (include/includeIf, worktree config) is lower priority than-cby construction.GIT_REPLACE_REF_BASE=refs/otherchanges nothing (replacements are off wholesale)..git/info/graftsis confirmed a non-vector: withH→Fgrafted,cat-file blob H:<rel>still answersSMOKE-A. Agitalias cannot hijack the reads either —git config alias.rev-parse '!echo FORGED'leavesgit rev-parserunning the builtin (aliases never apply to builtins), so the config lever cannot redirectgit_obj's subcommands.AVISOsentence now names both levers (git -c core.useReplaceRefs=false, aplicado DESPUES del config del checkout, mas GIT_NO_REPLACE_OBJECTS=1), so the text the verdict prints about what it read is true in the state that used to make it lie. Detection of the refs is still non-decisive but no longer silent:for-each-ref refs/replacestill lists the ref undergit_obj(the flag hides the substitution, not the ref), so a checkout carrying replaces is named.runs. (i) Prescan vs a stale accumulated result: a repo with the canonical smoke committed and a PREVIOUS run's 3-case XML left at ANOTHER path (…/route/route.xml) with a FUTURE mtime (the worst case for-newermt @start, which would count it) → this head recordstests_run=2(the smoke's own 2 cases); the filter is what removes the 3, not the mtime. (ii) Attribution: line 1 = canonical smoketests_run=2task=smoke:t, line 2 = a different suitetests_run=5task=other:ton the same head →check HprintsPROOF: OK … task=smoke:t … tests_run=2 … linea=1, i.e. the number comes from the line that passes, not from the global left by the last ledger line.ok_tests_runis assigned inside the same branch that setsok_line/ok_task/ok_class, from that candidate's ownjraw "$c" tests_run, before thebreak.tests_run=0→ rejected (se exige > 0) and can never reach the verdict; missing field →jrawempty → rejected;-5,5,1e3,08→ rejected (the last two by regex;08additionally prints bash's "value too great for base" to stderr, cosmetic, no rc change); absurd values (10^42,2^63) → rejected by bash arithmetic wraparound landing <= 0, i.e. also fail closed. A genuinerunwith no XML recordstests_run=0andcheckrejects that head (rc 1) — measured.git_objcall sites (item 3): all 20 call sites pass"$@"through, so the function is argument-transparent; every tree/rev/path fragment is quoted ("$tree","$rev:$rel",-- "$tf"), and-csits in the global-option position (before-Cand the subcommand), which is the only position git accepts —git rev-parse "$H:$REL" -c …is afatal: ambiguous argument, and the tool never writes it that way. End-to-end proof of quoting: a tree under a path WITH SPACES (/tmp/seat2/w 5/a tree) →runandcheckboth rc 0. No object-store read is left unprefixed: the only baregit -occurrences in the file are prose (--helptext and the AVISO string), and the four plain calls a round-2 seat listed are now converted too.checkrc 2, not a verdict; B3 holds — a ZERO-BYTE committed smoke → rc 1 naming the declared vs read bytes. Both re-measured at this head, fail-closed, in the conservative direction.kubectl exec -n sbx-gits sbx-gits-0 -- git --version→ git 2.39.5, the same version I measured everything above on locally, so the-csemantics I proved are the pod's semantics and not an extrapolation. On the pod, read-only:git -c core.useReplaceRefs=false config --get core.useReplaceRefs→false(rc 0, the key exists and the-cis applied),git -c core.useReplaceRefs=false --version→ rc 0, and against the real rung-2 checkoutgit -c core.useReplaceRefs=false -C /home/ld/work/epics/gits-e3/wt/j1 rev-parse HEAD→4ae3e72b59f5…withfor-each-ref refs/replaceempty. Option placement (-cbefore-Cbefore the subcommand) is accepted there, sogit_obj's shape is valid on the pod's git. UNVERIFIED on the pod: the actual substitution semantics under areplace(that would have needed a write inside the pod), and no older/newer git is in play in this repo (the pod and the mgmt VM are both 2.39.5).Harness (
bash scripts/gits-sbx-epic-test.sh, worktree pinned to this head): in flight at the moment of posting — §22b/§24/§25 had not been reached (§20 was the last section started). 478 PASS, 6 FAIL, 0 SKIP-so-far. Five of the six are exactly the known pre-existing reds of other tickets (probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod). The sixth is NOT in this delta and is not one of those five:21[R172c] (a) FIFO con el dueno y tres en espera— the lock-queue FIFO ordering case, which compares wall-clock interleavings of four processes withsleep 0.7/sleep 2(scripts/gits-sbx-epic-test.sh:10078-10108) and is timing-sensitive by construction. It also has to be read with a caveat that is mine, not the branch's: I did NOT keep the run strictly solo — short/tmpgit probes ran while it was in flight — so that red is not evidence about this head either way. §25 is therefore not covered by my harness run; the (f13) and anchor behaviour above is covered by my own end-to-end fixtures instead.Concerns
tree_clean/tree_clean_afterare decided bygit status --porcelain, and the INDEX can be told to lie with one local command that is not pushed and is invisible to porcelain. Measured at this head, genuinerun, no ledger forgery: in a repo whose head commits the smoke and a trackedsrc/Code.kt,git update-index --assume-unchanged src/Code.ktfollowed by an UNCOMMITTED edit of that file leavesgit status --porcelainempty (both plain and undergit_obj), the tool recordstree_clean=true tree_clean_after=true, andcheck <head>returns rc 0 — a verdict that asserts the head's code ran while the tree carries code that is not in the head.--skip-worktreebehaves the same;.git/info/excludedoes the same for UNTRACKED content (it cannot hide a tracked edit, I checked). Same privilege class asrefs/replace+core.useReplaceRefs(one local command, not pushed, porcelain-invisible), which is why I am naming it. Why it is a concern and NOT a blocker: it cannot reach the anchor. The same lever applied to the SMOKE itself (assume-unchanged + a forged trivial suite at the canonical path) givestree_clean=trueandcheckstill refuses with rc 1 —script_sha256=cd5fa483…≠ the head's committed blob0a6d0cf8…— so the property this PR establishes survives it; what it defeats is B1's honesty about the tree, which a forger with append access to the ledger and the runs directory could already defeat by the tool's own documented honest limit, and which no earlier round of this PR claimed to close. Suggested follow-up ticket: measure the tree withgit status --porcelain --untracked-files=allplus a check of the index flags (git ls-files -v | grep -E '^[a-z]'→ any lowercase flag means the index is lying) before writingtree_clean, and add the harness case beside (f3)/(f4).core.fsmonitorin the checkout's own config makesgit statusrun an external command; whether the v2 protocol can be made to answer "nothing changed" for a dirty tree is not something I measured, and if it can it is the same K1 class. Naming it so the K1 follow-up starts from the full list of status levers instead of just the index bits.git_objresolvesgitthroughPATH. No route inside this tool puts checkout content onPATH(the suite runs in a subshell ofrunwithPROJECT_DIRas data, and nothing here adds.), so a hostile checkout cannot ship an executable namedgitand have it used; and if the CALLER's environment is hostile enough to reorderPATH, it can also replacegitwholesale, which defeats every lever inside the tool at once. Conclusion stated plainly so no later reader treats the-cas protection against a compromised invocation environment: it protects against a hostile CHECKOUT, which is the threat this gate actually faces.check --treewith a head that is a commit of the tree but whose canonical blob is fine still passes when the tree'soriginis anything (--treeon a freshgit cloneof a crafted repo) — the same trust-root freedom round 2 recorded as A2 and left as accepted; I confirm it is unchanged at this head, not widened.FAILline does not veto a head that also has a canonicalOK) is what the live ledger requires, and my fixtures confirm a red run of the canonical smoke is now labelled as the canonical smoke and red rather than as "another suite". Decision 1 (the GITS app tree does not carry the smoke, so rung 2 is refused with rc 1 rather than passing on a substitute) is the honest direction: I re-confirmed that a tree without the canonical blob atHrefuses, and that a suite that ran but is not in the commit is reported asevidencia (no suficiente)and never completes the gate.Verdict of record — ld-reviewer — head
b9ce8fc7b1: APPROVEmodel: deepseek-flash
session: s1-r3-2682-ba6b3ed1
Resolutions
core.useReplaceRefs truein a checkout's.git/configno longer forges the anchor.git_objis nowGIT_NO_REPLACE_OBJECTS=1 git -c core.useReplaceRefs=false "$@"(core/manifests/apps/sbx-gits/tools/gits-sbx-emu-proof.sh:450) and every git invocation in the tool goes through it —grepfor a baregitin non-comment lines returns nothing; the three calls the pin did not previously cover (git_tree_clean,comment_prbranch/url,rev-parse --git-dir) were moved too. Theexport GIT_NO_REPLACE_OBJECTS=1is still there (line 182), so the two levers ship together. Independently reproduced on git 2.39.5 in /tmp: withgit replace H F,GIT_NO_REPLACE_OBJECTS=1 git rev-parse H:<rel>and... git --no-replace-objects rev-parse H:<rel>BOTH return F's blob oid (21b9ade0288e…) oncecore.useReplaceRefs trueis in the checkout config, andgit -c core.useReplaceRefs=falsereturns H's real blob oid (62ab86d2d552…) — i.e. the config lever really does defeat the env var and--no-replace-objects, and the-creally does win. Harness case (f12)/(f12b2) bites and is green: replace + config lever + a real run of F's suite on a tree parked at H → rc 1 naming H's real blob, and the lever is removed from the fixture afterwards (config --unset), so (f12c)'s genuine run still passes.-cpin, so it no longer claims a lever the tool does not use.task/class/tests_runcome from the passing line (f9, f13) and a red run of the canonical smoke is labelled as such, never as "otra suite" (f10).suite@commit(f, f2); zero-byte and deleted-object anchor → rc 1 with declared-vs-read bytes (f6, f7); a same-size substituted blob → rc 1 naming both oids (f11).montado=IGUAL|DISTINTOandancla_blob, so rewriting the committed smoke visibly moves the verdict (f5).Verification at this head (independent, unit//tmp only)
b9ce8fc7(bash scripts/gits-sbx-epic-test.sh): 653 checks, 648 PASS, 5 FAIL, 6 SKIP, 0 pending. That is exactly the PR body's table. The 5 reds are exactly the known pre-existing ones:probe uses an EMPTY pre-existing --dir,manifest[2],manifest[3],manifest[3b],T7 emulador dentro del pod.EL ANCLA (falla:).t2682a_fieldfalls back to the numeric form, soF13_RUNis read from the ledger's"tests_run":2instead of being empty; both assertions are live (F13_RUN != 2and the independently sed-extractedF13_VERDICT != 2), so a regression back to counting the accumulated results directory (3) fails the case. Before the fix the first assertion was unsatisfiable and the case could never pass.chain_textis untouched by this delta; 18-arg and 20-arg text is byte-identical toorigin/live'schain_text, andsuite_relpathonly appends the 21st line — the 21 live ledger lines keep their sha256.b9ce8fc7: runs #3244 and #3245, all jobs success (shellcheck, terraform-validate, yaml-lint, alert-receiver-test, cockpit-e2e, cockpit-test, dispatcher-test, helm-validate, receiver-test, record-sql-test, runner-manifest-test).bash -non the tool is clean.Concerns (non-blocking)
core.useReplaceRefs). On an older git the key is simply unknown, so nothing is forged through it either; run-proof.md states the floor and that it was measured on 2.39.5. Worth keeping that sentence if anyone editsgit_objagain.checkwith the pipeline's tree) is still open.FAILline never degrades to evidence but does not veto a later clean canonical line of the same head — supported by the live ledger heads that have a FAIL followed by a green re-run. I am not treating either as a blocker; both are visible and reversible.Blockers
None.
244b1bf3— blob-type refusal and no-canonical-path fail-closed; verified by both round-2 seats (22303, 22405 confirms) and re-swept green by both round-3 seats (22457, 22463).6d44b962(env flag) andb9ce8fc7(-c core.useReplaceRefs=false); verified by both round-3 seats.b9ce8fc7and the PR body corrected; CI on the head is green (runs #3244/#3245).The blockers raised in reviews 22296 and 22405 are resolved on head
b9ce8fc7b1; the remaining lines under them state the fixes and their verification, not open defects.