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Both cost a lap on #946 and neither was written anywhere a later session would find it: the commit bodies could not carry them, because both surfaced after the messages they belonged in were already written. THE FAN-IN HOLE IS NAMED WHERE THE PRINCIPLE ALREADY LIVES. The Verdicts section already says a `cancelled` read as red wedges a branch with no exit. It does not say that this repository currently does exactly that on its second fan-in: `CI_FANIN_CHECK` holds one name against `final` and `action-final`, so a cancelled `action-final` writes a real `failure` — `if: always()` fails its `needs:` assertion — and a failure conclusion is an ANSWER, outranking the newer run's non-answer. What made it expensive rather than merely wrong is that the conclusion is permanent on its sha: an unchanged sha creates no new run, so re-lapping re-reads the same failure for a full `verify`. CLOUD-1663 is open and owns the fix; this is the operating note until it lands. A UNION IS THE WRONG RESOLUTION WHEN ONE SIDE REMOVED. `MUTANT_GATES` is one long comma-separated line both sides append to, so most conflicted laps conflict there and a union looks obviously right. `8b619266` removed `release-trigger-independent` because `mutate sweep` answered `no-suite`, and a union silently resurrects that retired coverage claim with nothing in the conflict markers to say so. The rule is to diff against `origin/main` rather than the merge base, so a deliberate removal survives the resolution. Refs: CLOUD-1663, CLOUD-1787, CLOUD-1790
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…d it Three mechanics cost this session a lap each and none was written down. `plan cover partial` is tree-scoped, so an in-flight plan entry reds every `batten-check`, so `verify` writes no receipt, so `turn mint ahead` refuses every write. `deleted` via `batten record plan` is the gate's own free exit and stays reachable while the write gate holds. A red `verify` at HEAD with the marker set is a real deadlock rather than a gate to argue with: the fix for the red needs a write, and the write needs a receipt only that fix can earn. Push first, then `git reset --soft` to a commit that already carries a green `verify.<sha>`, and land the fix in that window. The leased push back must name the sha it replaces. `refusal::first_sighting` keys its store under `$GIT_DIR`, so a fixture without its own repository shares the enclosing one's sighting history and a cold state root controls nothing — the escape that produced three wrong diagnoses, none reproduced before it was reported and one filed as an Urgent row. The habit that would have caught all three is recorded with them: a control must control the thing the code actually reads. Refs: CLOUD-1832 Admits: 47a19db059f65de2feac7b648ed213b79ff615846ce848f7040efcad469c7685 Admits-rule: diff ship early Admits-verdict: diff ship early Admits-subject: 1 Admits-anchor: finding:16d69d6efc2185c0f225a253dc19dc0f9328129fcb11b39debac4e2e717015f9 Admits-epoch: e62b450968208680e4ed7d5cd6b5be263da64f3598c306ced4a0b8d845f3564d Admits-author: alec@wenzowski.com Admits-prev: - Admits-answer-lost: The three traps exist only in one session's chat and die with this container. Each already cost a wasted lap; the first was escalated to a human as an override request because the rule was not written down, and the third produced three wrong diagnoses, one filed as an Urgent row that then needed a correction. Not landing it means the next session pays them again. Admits-answer-precondition: The prose IS the deliverable: this commit's only content is a memory recording three landing-loop traps this session paid a lap each for — the plan-store deadlock, the HEAD-keyed receipt window, and the $GIT_DIR-keyed sightings store. There is no code change it describes, so there is nothing for it to ride. Admits-answer-rejected-route: task run first — let the next change to these files carry the prose. It does not apply because nothing scheduled touches `.serena/memories/workflow/landing-loop.md`; the memory is read on demand and a change to it is always prose-only by construction, so waiting is waiting for a code change that will never come. PR #955 is the precedent: the same shape, landed as its own PR.
wenzowski
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Sep 18, 2026
…d it Three mechanics cost this session a lap each and none was written down. `plan cover partial` is tree-scoped, so an in-flight plan entry reds every `batten-check`, so `verify` writes no receipt, so `turn mint ahead` refuses every write. `deleted` via `batten record plan` is the gate's own free exit and stays reachable while the write gate holds. A red `verify` at HEAD with the marker set is a real deadlock rather than a gate to argue with: the fix for the red needs a write, and the write needs a receipt only that fix can earn. Push first, then `git reset --soft` to a commit that already carries a green `verify.<sha>`, and land the fix in that window. The leased push back must name the sha it replaces. `refusal::first_sighting` keys its store under `$GIT_DIR`, so a fixture without its own repository shares the enclosing one's sighting history and a cold state root controls nothing — the escape that produced three wrong diagnoses, none reproduced before it was reported and one filed as an Urgent row. The habit that would have caught all three is recorded with them: a control must control the thing the code actually reads. Refs: CLOUD-1832 Admits: 47a19db059f65de2feac7b648ed213b79ff615846ce848f7040efcad469c7685 Admits-rule: diff ship early Admits-verdict: diff ship early Admits-subject: 1 Admits-anchor: finding:16d69d6efc2185c0f225a253dc19dc0f9328129fcb11b39debac4e2e717015f9 Admits-epoch: e62b450968208680e4ed7d5cd6b5be263da64f3598c306ced4a0b8d845f3564d Admits-author: alec@wenzowski.com Admits-prev: - Admits-answer-lost: The three traps exist only in one session's chat and die with this container. Each already cost a wasted lap; the first was escalated to a human as an override request because the rule was not written down, and the third produced three wrong diagnoses, one filed as an Urgent row that then needed a correction. Not landing it means the next session pays them again. Admits-answer-precondition: The prose IS the deliverable: this commit's only content is a memory recording three landing-loop traps this session paid a lap each for — the plan-store deadlock, the HEAD-keyed receipt window, and the $GIT_DIR-keyed sightings store. There is no code change it describes, so there is nothing for it to ride. Admits-answer-rejected-route: task run first — let the next change to these files carry the prose. It does not apply because nothing scheduled touches `.serena/memories/workflow/landing-loop.md`; the memory is read on demand and a change to it is always prose-only by construction, so waiting is waiting for a code change that will never come. PR #955 is the precedent: the same shape, landed as its own PR.
wenzowski
added a commit
that referenced
this pull request
Sep 18, 2026
…d it Three mechanics cost this session a lap each and none was written down. `plan cover partial` is tree-scoped, so an in-flight plan entry reds every `batten-check`, so `verify` writes no receipt, so `turn mint ahead` refuses every write. `deleted` via `batten record plan` is the gate's own free exit and stays reachable while the write gate holds. A red `verify` at HEAD with the marker set is a real deadlock rather than a gate to argue with: the fix for the red needs a write, and the write needs a receipt only that fix can earn. Push first, then `git reset --soft` to a commit that already carries a green `verify.<sha>`, and land the fix in that window. The leased push back must name the sha it replaces. `refusal::first_sighting` keys its store under `$GIT_DIR`, so a fixture without its own repository shares the enclosing one's sighting history and a cold state root controls nothing — the escape that produced three wrong diagnoses, none reproduced before it was reported and one filed as an Urgent row. The habit that would have caught all three is recorded with them: a control must control the thing the code actually reads. Refs: CLOUD-1832 Admits: 47a19db059f65de2feac7b648ed213b79ff615846ce848f7040efcad469c7685 Admits-rule: diff ship early Admits-verdict: diff ship early Admits-subject: 1 Admits-anchor: finding:16d69d6efc2185c0f225a253dc19dc0f9328129fcb11b39debac4e2e717015f9 Admits-epoch: e62b450968208680e4ed7d5cd6b5be263da64f3598c306ced4a0b8d845f3564d Admits-author: alec@wenzowski.com Admits-prev: - Admits-answer-lost: The three traps exist only in one session's chat and die with this container. Each already cost a wasted lap; the first was escalated to a human as an override request because the rule was not written down, and the third produced three wrong diagnoses, one filed as an Urgent row that then needed a correction. Not landing it means the next session pays them again. Admits-answer-precondition: The prose IS the deliverable: this commit's only content is a memory recording three landing-loop traps this session paid a lap each for — the plan-store deadlock, the HEAD-keyed receipt window, and the $GIT_DIR-keyed sightings store. There is no code change it describes, so there is nothing for it to ride. Admits-answer-rejected-route: task run first — let the next change to these files carry the prose. It does not apply because nothing scheduled touches `.serena/memories/workflow/landing-loop.md`; the memory is read on demand and a change to it is always prose-only by construction, so waiting is waiting for a code change that will never come. PR #955 is the precedent: the same shape, landed as its own PR.
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Refs CLOUD-1663
Two traps that each cost a lap on #946, written nowhere a later session would find them. Neither could ride in the commit body it belonged to: both surfaced after those messages were written — the first during CI, the second during the second rebase.
The fan-in hole
mem:workflow/landing-loop's Verdicts section already states the principle: acancelledread as red wedges a branch with no exit. What it did not say is that this repository currently does exactly that on its second fan-in.CI_FANIN_CHECKholds one name againstfinalandaction-final, so the superseded-run handling never applies to the latter. A cancelledaction-finalwrites a realfailure— itsif: always()fails theneeds:assertion — and a failure conclusion is an answer, so it outranks the newer run's non-answer and reads as red.Verified the engine is not misreading anything, by feeding
checks greenthe two real rows viaCHECKS_GREEN_RUNS:skippedalone →pending — required check(s) with no verdict, exit 3. Correct: a skip is not an answer.failure+ laterskipped→red, exit 1. Correct in isolation.What made it expensive rather than merely wrong: the conclusion is permanent on its sha. An unchanged sha creates no new run, so re-lapping re-reads the identical failure for a full
verify's cost — measured, twice on #946. Only a new sha clears it, which is free whenmainhas moved and unavailable when it has not.CLOUD-1663 is open and owns the fix (measured there independently on #848). This is the operating note until it lands.
A union is the wrong resolution when one side removed
MUTANT_GATESis one long comma-separated line both sides append to, so most conflicted laps conflict there and a union looks obviously right.It is right only while both sides added.
8b619266removedrelease-trigger-independent—mutate sweepansweredno-suite, so the row was a coverage claim with nothing behind it and moved to#MUTANT-EXEMPT. A mechanical union silently resurrects exactly that, re-reddeningmutate censuswith a name main had just retired, and nothing in the conflict markers says so. Caught on #946 only because the entry's name looked unfamiliar.The rule: diff against
origin/main, not the merge base, so a deliberate removal survives the resolution.Also records the neighbouring trap in the opposite direction —
$MUTANT_GATESentries are module names resolved againstpolicy/{name}.regoon disk, never rule ids, so renaming them to follow a rule-id rename stands the census's subjects up against names no file carries.Scope
Memory file only; no code, no gate behaviour changes.
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