[Tracking] guarded-write chain (epic 1375): rules, port sources, chain-level rows #1991

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1. easonLiangWorldedtech

   added 4 commits that reference this issue on Oct 12, 2026

   fix: order cancellation against the guarded publish and session restart

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   6485f06

   test(diffview): keep the open() serialization test inside the lint su…

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   fe6ff68

   fix: order cancellation against the guarded publish and session restart

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   81d16f3

   test(diffview): keep the open() serialization test inside the lint su…

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   2ba2936
2. easonLiangWorldedtech

   added 2 commits that reference this issue on Oct 22, 2026

   fix(file-safety): pin the authorized ancestry before the commit rename

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   b41213f

   fix(safety, task): cover the directory-failure paths and release the …

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   9f142dc
3. easonLiangWorldedtech commented on Nov 8, 2026

   

   easonLiangWorldedtech

   on Nov 8, 2026

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   Chain budget record - U3 / PR #1912 is over the executable-line cap: advisory, cap-class (planned-and-issued)

   Gate line, verbatim (mutation-diff job 128607732918, step Enforce executable-line scope and run advisory mutation testing, PR head 1fb5fcc47; re-run at head 085fbf85e4ad):

   Mutation gate failed: extension has 589 changed executable lines (limit 500). Split the PR or obtain a maintainer-reviewed narrow exclusion.
   

   Three things this record exists to make visible:

   1. Cap-class, not a code signal. Nothing is being carried past the gate on a surviving mutant - the run never reached mutation. Its own log warns core Stryker preflight could not start: spawnSync /tmp/stryker-launch-…/node_modul…, which is the known Stryker 10 + @stryker-mutator/vitest-runner runtime-activation defect. The single advisory survivor the job prints, packages/core/src/value.ts:1: Survived BooleanLiteral mutant, is in a file outside this PR's 13-file delta; it is read as an artifact of that failed preflight. That reading is unverified, and deliberately not chased.
   2. The newest commit does not move the number. 085fbf85e adds a JSDoc @internal tag to the primitive export so the production Knip view stops reporting it as an unused export. It is a comment: 589 before it, 589 after it.
   3. A trim is not available inside this unit. 89 executable lines would have to come out of the extension package's delta. Composition of this delta by my own count (added lines from git diff --unified=0 main..HEAD, blank and comment-only lines excluded - 767 for non-test files against the gate's 589, so the gate's metric is narrower and stays the authority): src/services/file-safety/safeWriteText.ts 538, src/utils/safeWriteJson.ts 177, src/services/mcp/McpHub.ts 22, src/core/task/observationRegistry.ts 23, src/core/task/Task.ts 7, and 2,295 across the six test files (safeWriteText.spec.ts alone 1,466). The only blocks large enough to reach 89 are the primitive itself or its evidence. Cutting either is a decision about where the primitive and its evidence live, not a scope trim, and it collides with this unit's seam ruling - main's protocol owns the JSON write mechanism, our path-safety layer grafts onto it, and both feature sets stay in the unit that introduces them. So the split plan already recorded above (U1-U9, one issue per unit: U3 -> Tracking fws U3: observation registry with read completeness #2018) stands as the plan, the advisory stands with it, and if maintainers want feat(task): observation registry with read completeness (U3, #1375) #1912 under the cap the narrow exclusion is the cheap route - which needs a maintainer signature, not an author one.

   Chain-level row to keep next to this one: #1912's src/utils/safeWriteJson.ts now carries main's replacement protocol plus our confinement layer grafted onto it - confinement before any mkdir, lock-key confinement, re-confinement under the lock, the ancestor/dir pins, identity-only re-verification (TargetMovedError, AncestorReplacedError), _copyTargetMode parity, and the POSIX-only best-effort parent-directory fsync that is a logged warning and never a PostCommitDurabilityError out of the JSON path. #1405 (U7) head aa44471e74 resolves that same file at its rows 3 and 7. Whoever lands first should expect the other to re-run the file, not re-decide it. The identity clause this unit depends on is written up on #2356 (comment 6716641767), which extends #2350 and leaves the not-yet-existing-basename half open on purpose.
4. easonLiangWorldedtech

   added 8 commits that reference this issue on Nov 8, 2026

   Merge upstream/main (73931fe) into fws/u4-read-scope-recording

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   4391a8b

   Reconcile the carried lock-key spec with the replacement protocol

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   279e77d

   Mark safeWriteText internal now that nothing in production calls it

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   c0b57f7

   Add the notice-separator row the review asked for on the clipped full…

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   e3d6327

   Stage the confined write's bytes after staging, and copy the target m…

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   8fa7d85

   Read the staged bytes after staging, where the escape undo can use them

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   1871993

   Copy the target's mode onto the staged file so the publish cannot wid…

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   Compare the interruption injection against identity so main's rows fi…

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6. easonLiangWorldedtech commented on Nov 11, 2026

   

   easonLiangWorldedtech

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   Finding about the changed-code mutation gate itself, from the lane working unit 1 of the 1921 chain (PR
   #2416). Quoting the machine report verbatim and leaving the decision to you: this is a report, not a
   proposal.

   At head 21cc345, the gate comment 6777017497 (rewritten
   2026-11-11T09:16:07Z, 2,799 bytes, 0 mutant rows) printed this advisory finding:

   extension mutation run exceeded 12 minutes. Split the PR or obtain a maintainer-reviewed narrow
   exclusion.
   

   The package table row it printed beside that finding, verbatim:

   <tr><td><code>extension</code></td><td><code>491</code></td><td><code>0</code></td><td><code>0</code></td>
   <td><code>0</code></td><td><code>0</code></td><td><code>0</code></td><td><code>Advisory incomplete</code></td>
   </tr>

   i.e. 491 changed executable lines, Valid 0, Killed 0, Timeout 0, Survived 0, No coverage 0, Result
   "Advisory incomplete". The report's extension focused-tests line says the same in words: "The mutation
   run was incomplete; selected test file names were not recorded." The types package ran normally in the
   same job (6 changed executable lines, Valid 1, Killed 1, Result "Passed"), and the check itself finished
   completed:success - run 130424642052, 08:58:55Z to 09:15:52Z - so a run that evaluated nothing reports
   green.

   Two things we want on the record before anyone reads these numbers as a result:

   1. blocking:0 at this head means the extension package was not evaluated, not that its mutants were
      killed. The completeness state (valid 0, killed 0, timeout 0, survived 0, no coverage 0, result
      Advisory incomplete) is what makes the 0 mean "not run".
   2. The unit is already under the size cap at 491 of 500 changed executable lines for the extension
      package, and it still exceeded the 12-minute wall, so splitting on size is not the lever the finding
      names. For contrast, the same package at the previous head 4bf26f1
      produced 232 blocking rows from a run that finished (run 130409270995, 08:23:25Z to 08:39:07Z), so
      the binding constraint we are hitting is a time budget rather than the 500-line figure the splits in
      this plan are sized against.

   Instrument for both readings: in-tree scripts/stryker-diff.mjs at blob
   7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc (MAX_CHANGED_LINES = 500), compared against merge base
   53cb5b5. Note that *.spec.ts files are excluded from the line count by
   the driver's packageForPath, so the three most recent commits on this branch, all spec-only, did not
   move the 491.

   Which of the finding's two options to take is yours; we are not proposing an exclusion or a further
   split. Marked as unproved by us rather than inferred: what the extension run would have reported had it
   finished inside the 12 minutes.
7. easonLiangWorldedtech commented on Nov 12, 2026

   

   easonLiangWorldedtech

   on Nov 12, 2026

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   Split plan for pull 2359, priced on measured trees. Every line figure and every mutant figure below was produced by the committed instrument scripts/stryker-diff.mjs at blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc, caps MAX_CHANGED_LINES 500 at line 11 and MAX_MUTANTS 400 at line 12, test paths excluded by EXCLUDED_PATH_SEGMENTS at line 85, and each figure names the head it was measured at. Tracker taken from this pulls own body line 1, which records the split plan on issue 1991 with plan comment 6717413931 and addendum 6717425955, so this comment is posted here rather than on issue 1914 or on the general plan issue.

   What was built, and what it cost

   Two shapes were built as real trees with git plumbing, both from head 022bd3a, and neither was pushed. Both move the containment and identity-pinning seam, that is GuardRejectedError, the AuthorizedTarget record, isInside, assertInsideWorkspace, assertCanonicalInsideWorkspace, ancestorIdentities and realpathNearest, plus the local errno helper replaced by the shared getErrorCode from src/utils/errorCode.ts, out of the compare-and-swap tool module and into the writer lane. In each shape the priced head is a linearised commit-tree so the instruments resolvePullRequestBase at line 287 cannot silently replace the base with the first parent.

   Shape one, the seam inside src/services/file-safety/safeWriteText.ts. Priced edge: 406 counted executable lines in package extension, measured at head 30a41e6186a761bd2659186b977c25995320d2f9 over base 3e35f92dd4225fd1e1746ae9c8bd433db5013b99, inside the 500 line cap by 94 lines. One file carries the whole edge, src/core/tools/guardedWrite.ts at 406 counted executable lines from a git diff of 680 lines, and the seven comment lines in src/core/task/Task.ts charge 0 counted executable lines under the same instrument. That shape has a consequence: the writer module becomes 551 counted executable lines measured at head 85bd6b50d31c76ca7a418be1c88c49323fb8f7bc over main tip efc22ed, being the 453 counted executable lines it already carried there plus the 98 counted executable lines the seam adds, and 551 is 51 over the 500 line cap on that single file, so the lane that owns the writer module busts the cap on one file no matter how the rest of its lane is cut.

   Shape two, adopted. The same 193 lines go into a module of their own, src/services/file-safety/guardContainment.ts, 203 lines, blob 1e6dd118f9b91578a1111e566b6903ab96b6ee06, and src/services/file-safety/safeWriteText.ts stays at the revision its own lane already declares, blob 40a20eafc7bd5358742bee29504d00c6071e51f1, one comment line repointed, charging 0 counted executable lines measured at head 4bc86831e689560fda5f5ae0b6a361b060991449 over base 022bd3a. Priced edge for this unit: 406 counted executable lines, measured at head 09ba8b19d2b71e041255321edcb7562ed2b7cb50 over base c36fefa2aaf5c73d8c481a74477e3e9f7c7218fd, inside the 500 line cap by 94 lines, identical to shape one. What leaves this unit for the earlier lanes: 849 counted executable lines, measured at head c36fefa2aaf5c73d8c481a74477e3e9f7c7218fd over merge base efc22ed, split as guardContainment 98, safeWriteText 453, safeWriteJson 132, fileLock 62, ReadFileTool 40, McpHub 27, jsonFileRecovery 26 and indentation-reader 11 counted executable lines, so no single file crosses the cap and the largest is 453. Moving the seam as one edit on this object charges 103 counted executable lines, 5 in the tool module and 98 in the seam module, measured at head 4bc86831e689560fda5f5ae0b6a361b060991449 over base 022bd3a, and the same 103 in shape one.

   The partition ties to the cumulative figure by measurement, not by arithmetic

   406 counted executable lines at head 09ba8b19d2b71e041255321edcb7562ed2b7cb50 plus 849 counted executable lines at head c36fefa2aaf5c73d8c481a74477e3e9f7c7218fd is 1255, and the 4 counted executable lines of the local errno helper that the split removes bring it to 1259 counted executable lines, which is the cumulative figure the same instrument measured at head 022bd3a over main tip efc22ed. That is why the mutation-diff job is red on the branch as it stands today, 1259 against the 500 line cap, and why a cut that puts 406 on this unit clears the cap on this unit while leaving the cumulative verdict to the predecessors. The 245-mutant figure below is the seam population on this unit only.

   The seam population of 245 instrumented mutants

   Instrumented 1 source file with 245 mutants on the seam-free tool module, inside the 400 mutant cap by 155. Shape two, measured at head 09ba8b19d2b71e041255321edcb7562ed2b7cb50 over base c36fefa2aaf5c73d8c481a74477e3e9f7c7218fd: Valid 245, Killed 190, Survived 45, No coverage 10, Timeout 0, blocking-status mutants 55 under BLOCKING_MUTANT_STATUSES at line 83, advisories 0. Shape one, measured at head 30a41e6186a761bd2659186b977c25995320d2f9 over base 3e35f92dd4225fd1e1746ae9c8bd433db5013b99: Valid 245, Killed 179, Survived 45, No coverage 10, Timeout 11, blocking-status mutants 55, advisories 1 reading extension timed out 11 of 245 valid mutants, the result is inconclusive.
   These digests came from a substituted in-place runner, not from the CI job. The instruments own runner could not start Stryker on this machine: it spawns node_modules/.bin/stryker with no extension and spawnSync without a shell cannot execute that shim, Stryker 10 rejects the config path when it is passed as the first argument, and the sandboxed copy cannot resolve its own configuration because on this junction install vitest exists only under src/node_modules. The substitution used the injection seam the committed instrument already exposes, runMutation passed into runManifest, with the same arguments and the same environment and STRYKER_IN_PLACE set to true as stryker.config.mjs line 15 already reads. Cost, preflight 21 and 24 seconds, full run 180 and 178 seconds, concurrency 2 and timeoutMS 5000 from the committed config.
   The same 245-mutant population reproduces its 45 survived and 10 uncovered mutants exactly across both runs and across both shapes, while its timeout split does not, 11 timeouts in the first run and 0 in the second on the same population. No timeout claim about this unit travels from this machine. That the survived and uncovered sets are identical in both shapes is the point of the comparison: where the seam lives does not change what the tests of record fail to kill.

   Provisional ownership, to be settled by a cross-chain blob census

   Marked provisional deliberately. In both shapes the seam lands under src/services/file-safety/, so pull 2359 stops owning any line of it. That path does not exist at main tip, rev-parse of efc22ed for src/services/file-safety/safeWriteText.ts returns fatal, path exists on disk but not in that commit, and the same search finds it present at three other lane tips, pull 1913 head bb89f14 with blob 8f7a924810c3, pull 2357 head 9c24106 with blob 495595ebdcd2 and pull 2433 head 316abe2 with blob c2d83ea2cf52. Under the merge order this pull declares in its own body, main then pull 1913 then pull 2357 then this unit, the earliest lane able to introduce that path is the U4a lane behind pull 1913, so the moved seam moves the owner to pull 1913. A cross-chain blob census is running against the same paths and will settle which blob each lane actually carries, and that census, not this comment, is the authority on ownership, because shape two moves the conflict surface onto a path that three sibling lanes read and contradicting ownership claims between sibling lanes are worse than a late one. Fraction of the read this paragraph rests on: 4 blob lookups and 1 absence proof, 5 of 5 searches, with the census outstanding.

   Local verification and what it does not claim

   Shape two, local checks on the three changed files: prettier 3.9.10 check exit 0, tsc 5.9.3 root leg and src leg exit 0, eslint 9.39.5 with --prune-suppressions --max-warnings=0 exit 0 and src/eslint-suppressions.json unchanged at 30910 bytes, vitest 4.1.12 over the 19-suite set 19 files passed, 952 passed and 4 skipped, and knip reporting the same 5 findings the pushed head, the replaced head and main tip report, 0 unused files. Behavior-preservation claim rests on 19 of 19 suites, 952 of 956 tests, and 190 of 245 mutants killed, and it does not extend to the 55 not killed, 0.22 of the population. The claim that a split unit clears the gate rests on 1 priced edge, 406 counted executable lines against the 500 line cap and 245 mutants against the 400 mutant cap, and says nothing about the 1259-line cumulative edge. No split shape was pushed and no re-review was requested.

   a green local preflight over Valid 0, Killed 0, Survived 0 and No coverage 0 with blocking 0 and advisories 2 is not evidence in either direction on this machine. the mutation leg is unmeasured, a PASS over an empty digest is not evidence in either direction, and CI at the first pushed unit is the only proof of the gate.

   Those two sentences stand beside the non-zero digests above: these are substituted in-place runs, not the hosted job. The 55 not-killed mutants are test-of-record gaps in this unit, mapped separately as 45 survived and 10 uncovered with the construct each sits in, and this comment does not add a test or change a file.
8. easonLiangWorldedtech commented on Nov 12, 2026

   

   easonLiangWorldedtech

   on Nov 12, 2026

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   Carrier ruling for the contested write-safety paths. Posted as a ruling with the evidence that makes it possible, not as a measurement report. Two token cores paid for it: this write and one read-back through the comments list route. The census behind it cost 0 cores. Nothing was pushed and no review thread was touched.

   1. There is no external authority to quote for these paths

   The consolidated maintainer note — comment 6768355289 on #1992, updated 2026-11-10T13:46:04Z, 10,735 bytes — contains 0 rows naming a merge order or an owning pull for src/services/file-safety/safeWriteText.ts, src/core/tools/guardedWrite.ts, src/utils/safeWriteJson.ts, src/utils/fileLock.ts, src/integrations/editor/DiffViewProvider.ts, src/utils/WorkspacePathResolver.ts or src/services/code-index/cache-manager.ts. That count is the campaign's own measurement. It is why this ruling quotes the records that declare an order instead of quoting a maintainer table: there is no such table for these paths to quote.

   2. The carrier of a path is the earliest object in the declared merge order that carries it

   "Carries it" is measured, not asserted: the path appears in that object's own diff against its merge base (git diff --name-only --no-renames <merge-base> <head>, run per pull against main tip efc22ed9f6f7, at 0 cores). The order is quoted from the records that declare it, not recalled:

   • Tracking fws U5: guarded-write core (create-if-absent and compare-and-swap) #2020 body, verbatim: "Part of the file-write-safety epic [EPIC] File Write Safety Prevent Concurrent Write Races Data Corruption #1375, landed as a nine-PR chain tracked on [Tracking] guarded-write chain (epic 1375): rules, port sources, chain-level rows #1991. Merge order: U1 -> U2 -> U3 -> U4 -> U5 -> U8 -> U6 -> U7 -> U9."
   • [Tracking] guarded-write chain (epic 1375): rules, port sources, chain-level rows #1991 body, verbatim: "One per unit, so every PR now has a linked issue in its sidebar: U1 PR 1910 -> Tracking fws U1: atomic text publish primitive (safeWriteText) #2016, U2 PR 1911 -> Tracking fws U2: canonical advisory lock key for file writes #2017, U3 PR 1912 -> Tracking fws U3: observation registry with read completeness #2018, U4 PR 1913 -> Tracking fws U4: read-scope recording and separate clipping reports #2019, U5 PR 1914 -> Tracking fws U5: guarded-write core (create-if-absent and compare-and-swap) #2020, U6 PR 1915 -> Tracking fws U6: apply_patch publishes through the guard #2021, U7 PR 1918 -> Tracking fws U7: remaining write tools publish through the guard #2022". U8 -> 1916 and U9 -> 1917 are absent from that line and are read from their branch refs fws/u8-diffview-guarded-save and fws/u9-task-history-delete; that step is labelled inference, not quotation.
   • 2433 takes U4's slot immediately after 1913: the U4 split plan, comment 6811350087 on Tracking fws U4: read-scope recording and separate clipping reports #2019, put U4a on the branch 1913 tracks and pushed U4b stacked before 2433 was opened.
   • 2357 precedes 2359: 2359's own body states U5-A as stacked on U5-B over chain base 416179d17de8, which is U4's head.
   • 2393 is U5c-1 and therefore first among the U5c units; its branch ref is vps2f-1914-u5c1-filelock and the U5c chain statement places U5c-1 before U5c-2 onward.
   • The older guarded-write chain runs 1395, then 1405 (unit S4a, branch feat/guarded-write-s4a), then 1408 (unit S4b, branch feat/guarded-write-wiring-s4b). 1403 declares itself built on 1395 under tracking issue 1396; 1404 carries tracking issue 1397 and leads the b-series whose labels run b1 (1404) -> b2 (1406) -> b3a (1411) -> b3b (1412) -> b3c (1410).
   • The split-1066 chain runs 1931 -> 1929 -> 1930 -> 2435 -> 1932 -> 2434 -> 1928, as declared by the split plans carried on [split-1066] U5 - fix(write-to-file): capture the streaming failure once and report it once #1935 and [split-1066] U6 - fix(write-to-file): run the diff cleanup when handleError rejects #1937 (plan comment 6811832404 on [split-1066] U6 - fix(write-to-file): run the diff cleanup when handleError rejects #1937) and the chain map on [Tracking] split-1066 chain: rules, port sources, chain-level rows #1989 (comment 6811844117).

   3. A fix lands once, in the carrier

   Every other object that carries the same path gets a pointer reply naming the commit, not another copy of the same fix. Where a later object carries a different version of a path whose carrier has already been named, the thing that resolves it is the normal refresh round — the successor rebases onto the tip the carrier creates — and not a second edit of the same path.

   4. The two records about 2385 and 1395 disagree about sequence, not about content

   Comment 6790813203 on #2021 makes 2385 the owner of safeWriteText.ts with 1395 landing first. A lane record of the same queue states 2385 first and 1395 rebased onto the main that contains it. Both give 2385's copy of that file the authority; they differ only about which object lands first. The campaign states the content question as settled because either sequence ends with the same bytes once the later object rebases onto the tip the earlier one creates.

   Recorded beside the ruling rather than smoothed into it: that convergence is a property of the rebase route the ruling specifies, and no rebase has been run or measured at 0 cores. What has been measured is the cheaper merge-commit route, with git merge-tree --write-tree in a blobless clone, each landing sequenced onto the merge commit GitHub itself generated for the object that lands first. It converges on one of the three paths and not on the other two. safeWriteJson.ts ends as 2385's dcfd8d584be9a6273e06439a887110a61cd15706 in both orders, because 1395's own diff never carries that path. safeWriteText.ts and fileLock.ts stay dirty in both orders — exit 1, with stages 101c80aa75f6 / a56f1006d9a2 at safeWriteText.ts and stages 49807ea154d4 / d8bdbf910b30 / 344519ac5699 at fileLock.ts, plus both spec files — and the marked text git writes for those paths is a different blob per order (8cec370301fd against 7f49317cafa7, 10bf368bad7f against 9538e8f54d6a). A naive merge of one head onto the other's landed merge commit does not by itself end with the same bytes; the ruling's convergence claim rests on the rebase, which is the route it names and the route this census did not exercise.

   Earliest carrier for each contested path, from the census

   "Identical version" means the same blob id at the same path, which is the same bytes. Blob ids come from trees, so no diff text is implied. Main tip is efc22ed9f6f7.

   path	earliest carrier in the declared order	the version it carries	other objects carrying that identical version
   src/services/file-safety/safeWriteText.ts (absent at main tip)	#1910 (U1) on the chain; #1395 on the older guarded-write chain	befb195e343c725a40ccf9aeff04cae15748d84a; 101c80aa75f6a64ad5d5ed5fb830c8e516ca7d80	neither is shared. The shared copies in this path come later in the order: #1914 and #2383 both carry 9701d4b3b68855c0b1c4ac3ee9c5d44a96e3a01a, and #1915 and #1916 both carry 4a60b4a4e045e23e81b348ffab0cfd7c049bee12
   src/core/tools/guardedWrite.ts (absent at main tip)	#1914 (U5) on the chain — the first object in the chain whose diff contains this file; #1405 (S4a) on the older chain	a11bf87f09f7cc26ae3eda8083a2b59f4e4e6118; ac39ac18757edb84f635a0f472b9ea38d20daf3e	#1915 and #1916 carry 38195055ecb54512aeffe797092efe55477274c0 identically, one chain position later. #2359 carries a third version 32ffe6cebadb2549e5ca564c648f74e333ff6e9b
   src/utils/safeWriteJson.ts	#1911 (U2) on the chain; #1405 (S4a) on the older chain	632184a3c8f231df8e558d7b582ef44c058aec29; f9073dcd64e97fefdbe60135871de70ed724871f	#1915, #1916 and #2357 all carry f4edc7ee9c8c168da844730742a54f682bd00a70: three objects, one version, so two of them owe pointer replies and none of them owes a fresh edit
   src/utils/fileLock.ts	#1913 (U4a) on the chain; #1395 on the older chain; #2393 (U5c-1) among the U5c units	6ca70045661c1522642494c234ebb02e7068ec3b; d8bdbf910b30a5320c7d178c76c2dc5763a7d174; a998680becb136ccc9345f6daf25fd1fbc3fc139	#2433 carries #1913's blob byte for byte; #2383 carries #1914's 7d1682338503cfe803ea7c8bb719e80c638449d2 byte for byte; #2357 and #2359 both carry 0705f771ccac98167f71562ed418da4106b8b31d. #1918 (d4251f00781bc4fdcbc4342e67890556fbcef037), #2385 (344519ac569966c377907b79e12425a900df5332) and #2368 (cdd0ad1b282e5d68dd0bfbca27e753147f4efc98) carry versions nothing else carries
   src/integrations/editor/DiffViewProvider.ts	#1916 (U8) on the chain — no earlier chain unit carries this file in its diff; #1931 (U3) on the split-1066 chain; #1395 on the older chain	85c89ae166cc0ec45561c6bd321f0c66516e6d7b; e2ee190cf82b88712bfa5b2bef52090070a9e75d; f5ef407514f9f79459e5987e9549a833ad71bdfe	#1915 carries #1916's blob identically; #2435 carries #1930's 26c3974f91e0ae36d402d605abdebaada13c7f12 identically. Later split legs carry their own versions: #1932 d6e537449c2bf2fd68a3c11e106f52b3ce30917d, #2434 221fb5af7a81eeb7f2ae13b1c2b693b88ab5a5dd, #1928 6c23c73efa6614cb34cadebc7c85d8439b35bfc9
   src/utils/WorkspacePathResolver.ts	#1395, and only #1395	10e425c8ec5294166edf3eb5bb0e95c07b49f24f	no other open fork carries a competing copy: 74 of the 75 carry main's 42536991d70315ad05f61c2a3032ce4ad0eba5fb
   src/services/code-index/cache-manager.ts	#1395, and only #1395	b1062de55688e7c862086fa8d3d103e2847de6de	no other open fork carries a competing copy: 74 of the 75 carry main's 7807aac69d1a01c543405e4fe10f15d8958822d9

   The consequence a reader should take from the last column: on every path where another object holds the carrier's exact bytes, that object owes a pointer reply naming the carrier's commit, and landing its copy again would be a second copy of content main already receives from the carrier. On the paths where a later object holds different bytes, the thing to schedule is the refresh rebase onto the carrier, not a new edit of the same path.

   Two things marked unsettled, not smoothed over

   • The openness classifier behind every count here measures not-yet-merged and infers not-closed. Measured at 0 cores: none of the 160 pull heads that equal a live fork branch tip is an ancestor of main; ancestry across all 1,296 pull heads gives mergedWithMerge 0, mergedNoMerge 14, unmergedWithMerge 184, unmergedNoMerge 1098; and the 14 merged pulls carry no merge ref while no merge-ref-bearing pull is merged, so a live refs/pull/N/merge is a sound openness signal in this repository. A closed-unmerged pull whose fork branch is still live and whose merge ref survived would read exactly the same way in refs, so un-closed is an inference and reading the state field would cost a core that was not spent.
   • Ten open pulls carry stale copies of three main-side files, and what happens when they merge is measured, not assumed. feat(api): per-request thinking effort override and adaptive effort envelope (DTE series 2/5) #1522, fix(activate): target title-bar commands to their click-origin instance #1528, feat(api): abort signal support for poe (completePrompt + createMessage) #1535, fix(webview): isolate parallel mode and provider profile writes (vps2 F3) #1560, test(webview): F2a - profile-mutation state semantics and the mode-rollback guard #1919, fix(ci): measure a stacked unit against its parent pull request #1924, feat(label): mark stacked pull requests so reviewers can filter them #1925, chore(mutation-gate): remove all Stryker directives with evidence-backed exclusions #2054, feat(webview): per-view view-state identity and host-minted claim token (N1, split 1/3 of #1546) #2226 and refactor(webview): message-handler and API-surface unit of the view-identity split (u2 of the #2226 split plan) #2411 each carry, at safeWriteJson.ts, fileLock.ts and DiffViewProvider.ts, a copy equal to main as it stood on 2026-11-06: 773ba57c06e0c0503c9b8e2215b913999543881b and 9f7cad7653c38f035811fccc47355248e1f5fe9f as they stood at main commit 457bed3cada1, and bb3368f063a3d25a14bbf6f6a712c5bd9f07c2c1 as it stood at main commit bb6cbee59e7a. Measured against GitHub's own regenerated merge commits for those pulls — two-parent commits dated 2026-11-12T01:31:13Z through 01:35:31Z, every one with main-side parent 631374617052 — the merge is clean at those paths and it keeps main's current copy in 30 readings out of 30: in every case the merge base already holds the blob the head holds, which is precisely why the pull's older copy does not reach main. So this is staleness that a refresh rebase clears, and it is not a carrier of a fix on these three paths. What stays unsettled, and is left unsettled here, is the reading a reviewer gets from the pull's own Files tab, where the stale copy is what is displayed, and from any landing that adopts a branch tree wholesale instead of merging it; that route was not measured.

   Instrument and cost

   Census, 0 token cores: git ls-remote for refs/pull/*/head (1,296 refs), refs/pull/*/merge (184 refs) and fork refs/heads/* (254 branches); a blobless shallow fetch of 150 refspecs into a scratch repository (151 refs, 996,708 bytes, no blob downloaded) for blob ids read out of trees with git ls-tree -r; a blobless clone (155,874 objects, 28.87 MiB) for merge-base, merge-tree and the merge-commit reads. Identical blob ids are identical bytes; no blob content was diffed and no claim about diff text is made here. This comment: 1 core to write and 1 core to read back through the comments list route, against the authenticated limit of 5,000 per hour, proven by x-ratelimit-limit: 5000 on both responses. No push, no label, no reviewer request, no thread resolved, nothing closed.
9. easonLiangWorldedtech commented on Nov 12, 2026

   

   easonLiangWorldedtech

   on Nov 12, 2026

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   Landing order and per-unit capacity for the file-safety chain, read from the front objects own body

   Which tracker this sits on, and why

   The front object of this chain is pull 1910. Its body was read fresh from the object rather than from memory, through the free github.com door (no x-ratelimit-* header on any of these reads, so no core spent), and it says, verbatim:

   • Closes: #2016 (this unit's tracking issue).
   • Refs: #1991 (chain tracking), #1375 (epic).
   • Merge order for the chain: U1 -> U2 -> U3 -> U4 -> U5 -> U8 -> U6 -> U7 -> U9. This unit is first.
   • Split plan of record: comments 5993969784 / 5994039786 / 5994053776 on #1991.

   #2016 is this units tracker and the front closes it. #1991 is what the same body calls the chain tracker, and it is where the body sends the split plan of record. A note about the landing order of the whole chain and the capacity of every unit in it is chain-level material, so it goes on #1991, next to the plan it prices and the carrier ruling of 2026-11-12. The unit-level ask on #2016 is untouched by this note and is not moved by it.

   The two landing orders the chain carries

   The declared spine, quoted from the front objects body above, is U1 -> U2 -> U3 -> U4 -> U5 -> U8 -> U6 -> U7 -> U9. In pull numbers, through the naming map the chain itself maintains on #1991 (U1 PR 1910 -> #2016, U2 PR 1911 -> #2017, U3 PR 1912 -> #2018, U4 PR 1913 -> #2019, U5 PR 1914 -> #2020, U6 PR 1915 -> #2021, U7 PR 1918 -> #2022, U8 PR 1916 -> #2023, U9 PR 1917 -> #2024), that reads 1910, 1911, 1912, 1913, 1914, 1916, 1915, 1918, 1917. The order is a reviewer-facing convention: no pull head in this chain is an ancestor of any other, so the spine does not describe lineage, it states intent.

   The published re-cut order is what the objects that were actually opened declare. The spine middle, U4 and U5, was replaced by units that exist as pulls:

   • 2433 says of itself: Unit U4b of the split plan recorded on the unit tracking issue, issue 2019 ... It depends on pull 1913, which carries unit U4a on the branch this branch is stacked on.
   • 2357 says: this branch's parent is PR #1913's head 416179d17de8, so merge #1913 first and this branch adds exactly its own delta on top.
   • 2359 says: Declared merge order is main -> PR #1913 -> U5-B (this PR's parent content, PR #2357) -> this unit.
   • 2383, the other split of 1914, proposes its own closure and writes the order it thinks the family should take: Merge order this produces, which is the useful part. The family starts at #1910 (333 counted executable lines) and #1911 (496).
   • 2384, split 2 of 1914, is merged and its page reads MERGED. The campaigns transport re-read resolves refs/heads/main to 53cb5b5e7c8014d3226e5636bbca8999ed3b8526, subject unit 2 of the #1914 split (5 files, whole-file module cut) (#2384), which is the tip every unit in this chain is priced against.

   So the re-cut order runs 1910, 1911, 1912, 1913 (U4a), 2433 (U4b), 2383 and 2384 (the two first splits of 1914), 2357 (U5-B), 2359 (U5-A), then the surviving spine units 1915, 1916, 1918, 1917 and the residue of 1914.

   Operative order: the published re-cut, not the declared spine. That is the campaigns ruling, recorded with the table: the re-cut order is operative because the spine middle was replaced by units that were actually opened, and a note that priced 1914 as if it still landed whole would be pricing a pull whose content three other pulls now carry. Where the two orders disagree about the middle, the objects that exist win over the order that was intended.

   q1890, quoted verbatim: lead ruling recorded with the table, the campaign treats the published re-cut order as operative rather than the declared spine because the spine middle was replaced by units that were actually opened, and it will not place before a maintainer a unit whose own file busts the single-file limit, so 2359, 1916, 1918 and 1917 are declared split-or-named-exclusion work and the reviewable set today is the units inside both budgets with predecessors simulated in, 1910, 1911, 1912, 1913, 2433, 2383, 2384, 2357 and 1915

   Capacity per object, priced against simulated predecessors

   Every figure in this section is the campaigns landing-order capacity table of record (deferred-queue.json row q1887, recorded 2026-11-12 from lane t12-1291s landing-order simulation, worktrees wt_t1291_simA and wt_t1291_simB created 2026-11-12T05:49:11Z and 05:49:22Z). This lane did not re-price anything and quotes the row rather than restating it as its own measurement.

   q1887, quoted verbatim: landing-order capacity table of record, measured against simulated predecessors rather than the frozen base, inside both budgets once predecessors are simulated in, 1910 at 351 lines and 338 mutants, 1911 at 284 and 306, 1912 at 262 and 312, 1913 falling from 319 to a 116-line residual with its writer file at 63 lines, 1915 at 87 and 80, and in the published re-cut order also 2433 at 104 and 147, 2383 at 197 and 193, 2384 at 0 counted lines because its whole residual is one uninstrumented spec file, and 2357 at 205 and 219, while still over are 1914 at 723, 1916 at 1122 with DiffViewProvider alone at 724, 1918 at 1134 or 1150, 1917 at 674 and 2359 at 632 with its tool file alone at 508, each over on content it carries itself The shape of the number is changed executable lines under the repository instrument (scripts/stryker-diff.mjs line accounting, MAX_CHANGED_LINES = 500, spec files not counted) against the content its predecessors already served, not against the frozen base every unit was cut from, with the instruments mutant count beside it against MAX_MUTANTS = 400.

   object	lines at the simulated base	instrument mutant count	inside both caps
   1910	351	338	yes
   1911	284	306	yes
   1912	262	312	yes
   1913	116 residual, down from 319	with it	yes, writer file 63 lines
   2433	104	147	yes
   2383	197	193	yes
   2384	0 counted lines, its whole residual is one uninstrumented spec file	none counted	yes
   2357	205	219	yes
   1915	87	80	yes
   1914	723	not reached	no
   2359	632	not reached	no
   1917	674	not reached	no
   1916	1122	not reached	no
   1918	1134 or 1150	not reached	no

   Nine units fall inside both budgets the moment their predecessors are simulated in, including the front of the chain, and every unit that stays over is over on content it carries itself, not on what a predecessor left behind.

   The file that keeps each over unit over

   • 1916, 1122 lines: src/core/webview/DiffViewProvider.ts alone at 724. The file busts the single-file limit by itself, so no re-cut of neighbours brings the unit under.
   • 2359, 632 lines: src/core/tools/guardedWrite.ts alone at 508. Same shape, and the campaign holds two readings of it: at the frozen base the same file reads 401 with the unit at 1,284, and at the simulated base 508 with the unit at 632. Either way the file is over the 500-line single-file limit on its own.
   • 1914, 723 lines: the table of record gives the package total and names no single file for this unit. What the campaign can back about its content is the carrier map: 1914 is the earliest object in the chain carrying the tool-side guarded write, blob a11bf87f09f7, and 1915 and 1916 share 38195055ecb5 on the same path. A residual file for 1914 at the simulated base is not measured anywhere on disk and is not named here.
   • 1917, 674 lines: the per-file composition the campaign measured at the frozen base puts guardedWrite.ts at 401 as the largest file in the units 1,705-line cumulative figure, followed by DiffViewProvider.ts 338 and TaskHistoryStore.ts 278. That is the file this unit is over on, but the figure attached to it is a frozen-base figure, and the simulated-base per-file figure is not on disk.
   • 1918, 1134 or 1150 lines: the campaign names src/core/webview/DiffViewProvider.ts at 508 for 1918 at the frozen base, which is the file that busts the single-file limit in this unit as well. Same caveat: the 1,134 and 1,150 figures are package totals at the simulated base, and no per-file figure at that base is on disk.

   The mutation figure for these five is not reached, and it is not zero. The instrument stops before the mutation stage on a line-cap breach, so a unit that busts the line cap produces no mutant count at all. Reporting such a unit as 0 mutants, or as passing the mutation budget, would be reading an absence as a result. The units above carry no mutant figure because the instrument never got to the stage that would produce one.

   What the campaign will and will not ask a maintainer to review today

   The campaign will not put before a maintainer a unit whose own file busts the single-file limit, because the ask would be a request to review a shape the campaign already knows it will not accept: 2359, 1916, 1918 and 1917 are declared split-or-named-exclusion work, and what each of them needs is a further cut or a named exclusion, not another refresh. A refresh changes the head and leaves the file at 724, at 508, at 508.

   Reviewable today, inside both budgets with predecessors simulated in: 1910, 1911, 1912, 1913, 2433, 2383, 2384, 2357 and 1915. Being inside budget is what makes them reviewable; it does not say what the review will conclude, and a unit being reviewable is not a claim that it is clear. 1910 carries a standing human change-requested verdict this credential can neither dismiss nor give, and 2383 is one of the units asking to be closed as superseded by 1911.

   The re-land ledger beside the table

   The chain touches 64 paths. 44 of them already carry more than one version, 14 carry five or more, and the writer path alone carries 11 distinct versions.

   q1889, quoted verbatim: re-land ledger of record, the chain touches 64 paths, 44 already carry more than one version among 14 carriers and 14 carry five or more, the writer path alone carries 11 distinct versions, and per unit the identical re-lands that owe a pointer reply rather than a second copy are 15 for 1915, 12 for 2359, 10 for 2433, 10 for 2357, 7 for 1914, 7 for 1917, 5 for 1918, 3 for 1916 and 2 for 2384, while the different-byte re-lands that are landing-time conflicts are 34 for 1917, 34 for 1918, 27 for 1916, 18 for 2357, 16 for 1914, 12 for 1912, 11 for 1915, 10 for 1913 and 7 each for 2359 and 2433 That is the quantified form of the standing ruling that a fix lands once and everything else owes a pointer reply rather than a second copy of the file.

   Read from that row: identical re-lands, which owe a pointer reply and not another copy, are 15 for 1915, 12 for 2359, 10 for 2433, 10 for 2357, 7 for 1914, 7 for 1917, 5 for 1918, 3 for 1916 and 2 for 2384.

   And from the same row, the different-byte re-lands, which are the conflicts waiting at landing time: 34 for 1917, 34 for 1918, 27 for 1916, 18 for 2357, 16 for 1914, 12 for 1912, 11 for 1915, 10 for 1913 and 7 each for 2359 and 2433.

   A decision of this campaign, not a fact of the platform

   How the simulation resolves a conflicted path is a choice this lane is stating as its own, not something the door reported: the simulated landing resolves each conflicted path by taking the arriving units whole file. A real merge of the same pair is a three-way merge inside the file, which can keep both sides, drop a hunk, or stop with a conflict a human has to settle. So the inside-and-over lists above are honest about content that has to fit in one file at a time, and they are not a prediction that these merges land clean. The counts that follow from a whole-file takeover — 44 of 64 paths re-landed, 11 versions on the writer path — are the same counts whichever resolution rule you prefer; the units that fall out of them are not.

   What every mutant figure in this table is, and is not

   The killing stage is unpriced for every number in this table. On this install the preflights abort before any mutant is run — the campaigns own local runs stop at the zero-baseline step, one of them printed 381 zero-baseline tests failed before executing a single mutant — so no figure in the mutant column is the output of a killing pass. The column is what the instrument counts: selectors derived and mutants the changed lines would hand to Stryker. It says how much work a unit would give the mutation gate. It does not say whether the unit passes it, and it is not a verdict.

   How this note was paid for

   Two token cores: the write this comment is, and one read of GET /repos/Zoo-Code-Org/Zoo-Code/issues/1992/comments?per_page=100 taken as the independent proof that the write landed, rather than trusting a door that caches a document. Everything else came through doors that print no rate counter: six github.com pull pages read for their bodies and states (1910 at 1,672,493 B, 2383 at 800,293 B, 2359 at 860,569 B, 2357 at 583,127 B, 2433 at 585,088 B, 2384 at 438,079 B, none carrying an x-ratelimit-* header) and the records already on disk. The prices and the re-land ledger are quoted from the campaign rows named above and were not re-measured here. 0 pushes, 0 review threads touched, 0 labels, 0 reviewer requests, 0 closures, 0 thread resolutions, 0 source edits.

   — posted by n20-2237 (a maintenance lane: no label, no dismissal, no thread resolution, no review request).
10. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

    on Nov 12, 2026

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    What is on the branch right now, for the nine units this chain is asking maintainers to review

    Posted beside the landing-order and per-unit capacity note 6816547710 above, so the leg truth and the verdict truth arrive next to the capacity numbers instead of as a third document somewhere else. Nine units: 1910, 1911, 1912, 1913, 2433, 2383, 2384, 2357, 1915. Read 2026-11-12 between 06:33Z and 06:47Z.

    Everything below is measured at the head the transport reports for the branch each pull names, and for all nine the transport sha and the head sha in the pull object are the same commit, so every line below sits on a live head. Instruments: git ls-remote for heads, 3 reads, 0 API cost; the anonymous REST door with an Accept header and no credential, 40 requests, 0 API cost; git rev-list against the shared object DB for base distances, 0 API cost. Cost of this comment: 1 core on the authenticated door, and the read-back that proves it landed was taken through the anonymous door at 0 cost. Nothing here is called green, mergeable or ready.

    The six required legs are named from the branch ruleset, not from whatever happened to run: ruleset 15494382, Protect Main, enforcement active, updated_at 2026-05-23, whose required_status_checks rule lists check-translations, platform-unit-test ubuntu-latest, platform-unit-test windows-latest, compile, knip and e2e-mock. The payload prints parentheses inside the two platform names; they are spelled with a space here. mutation-diff is not on that list and is advisory, so where it is red below it is named and not counted as a required leg.

    Read completeness, stated once rather than per line. Every check-run response came back below the 100-per-page ceiling with no link header, and every review list was read to its last page, so the counts below are the whole set the door would give for each question. Anonymous counter headers as the responses printed them, not derived: first window printed limit 60 with reset 1794465733 and remaining falling from 45 to 12 across the 34 requests; that window rolled over during the round, and the six follow-up responses printed limit 60 with reset 1794469409 and remaining 59, 58, 57, 56, 55, 54. Resource printed core on every response.

    Classification is kept in five separate buckets: present with completion and outcome, in progress, queued, absent, failing. They are not collapsed into green or red.

    unit	branch and live head	six required legs at that head	anything else non-success on that head
    1910	fws/u1-atomic-publish at cfbf79c	present, completed success, 6 of 6, 2026-11-12T03:21:07Z to 03:29:20Z	none, 24 runs total
    1911	fws/u2-lock-key at 1856b30	present, completed success, 6 of 6, 2026-11-10T19:09:21Z to 19:22:57Z	none, 23 runs total
    1912	fws/u3-observation-completeness at 90f56d2	present, completed success, 6 of 6, 2026-11-11T02:56:19Z to 03:03:01Z	mutation-diff failure at 02:56:19Z, advisory, 25 runs total
    1913	fws/u4-read-scope-recording at f0d2c1b	present, completed success, 6 of 6, 2026-11-12T06:02:04Z to 06:10:08Z	none, 20 runs total
    2433	fws/u4b-json-publish at 316abe2	present, completed success, 6 of 6, 2026-11-12T01:12:13Z to 01:19:20Z	none, 26 runs total
    2383	fws/u9-1914-cut1-safe-write-file-lock at 3caf4db	present, completed success, 6 of 6, 2026-11-10	none, 41 runs total, the most of the nine
    2384	fws/u9-1914-cut2-observation-registry-task at 3ce2d05	present, completed success, 6 of 6, at the head it merged at	none, 27 runs total
    2357	vps2f-1914-u5b at 9c24106	ABSENT, 0 of 6 present, in progress 0, queued 0, failing 0, absent 6	only automation, see the absent section, 3 runs total
    1915	fws/u6-apply-patch-wiring at 5115d62	ABSENT, 0 of 6 present, in progress 0, queued 0, failing 0, absent 6	only automation, see the absent section, 3 runs total

    In progress 0 and queued 0 on all nine. Nothing is waiting on a runner anywhere in this set. Failing 0 on all nine among the six required legs; the only red leg-shaped thing in the set is the advisory mutation-diff failure on 1912.

    The verdict truth, and the point of this sheet

    The pull payload at this API version carries 48 top-level fields and none of them is a review decision, so there is no aggregate verdict field to quote, and every verdict statement below is row-level: the review row, who filed it, when, and the commit it was filed against. Five of the nine verdicts do not describe the code that is now on the branch.

    unit	newest verdict row	filed against	is that the live head
    1910	CHANGES_REQUESTED by coderabbitai bot, 2026-11-10T01:54:32Z	a6ce54e	no, superseded, the branch now carries cfbf79c
    1911	CHANGES_REQUESTED by coderabbitai bot, 2026-11-09T16:24:56Z	ad18ac4	no, superseded, live head 1856b30
    1912	CHANGES_REQUESTED by coderabbitai bot, 2026-11-11T03:12:05Z	90f56d2	YES, the live head
    1913	CHANGES_REQUESTED by coderabbitai bot, 2026-11-12T01:26:02Z	bb89f14	no, that was the head before the 06:01Z refresh, live head f0d2c1b
    2433	CHANGES_REQUESTED by coderabbitai bot, 2026-11-12T01:37:42Z	316abe2	YES, the live head
    2383	CHANGES_REQUESTED by coderabbitai bot, 2026-11-10T15:33:20Z	3caf4db	YES, the live head
    2384	APPROVED by edelauna, 2026-11-10T23:51:38Z	3ce2d05	YES, the live head and the head it merged at
    2357	CHANGES_REQUESTED by coderabbitai bot, 2026-11-09T07:57:37Z	d6fa711	no, superseded, live head 9c24106
    1915	CHANGES_REQUESTED by coderabbitai bot, 2026-11-09T02:43:16Z	a71761a	no, superseded, live head 5115d62

    So: three red verdicts stand on the commit their branch actually carries, on 1912, 2433 and 2383. One verdict, on 2384, is an approval sitting on the head it merged at, and 2384 is the only unit of the nine whose verdict at its live head is approval. Five verdicts, on 1910, 1911, 1913, 2357 and 1915, were filed against commits the transport no longer reports for those branches.

    Two things that are easy to lose in a verdict column, both measured. On 1913 nothing at all has been filed against the live head f0d2c1b, no verdict row and no comment row, 0 of 192 rows, so its review state at the live head is unwritten rather than approved or red. On 2383 the bot filed a COMMENTED row against the live head 3caf4db at 2026-11-11T03:10:54Z, about two hours after the red verdict on that same head, and did not lift the verdict. On 2357 and 1915 the rows sitting on the live heads, 4 and 8 of them, are commentary, not verdicts.

    Review row counts, all read to the last page: 1910 86 rows, 1911 112, 1912 155, 1913 192, 2433 1, 2383 28, 2384 2, 2357 208, 1915 225.

    The two units with no required leg at their live heads, and the evidence that this is silence rather than absence of a gate

    2357 at 9c24106 and 1915 at 5115d62 carry none of the six. The identical request at each of those shas, commits/<sha>/check-runs?filter=all&per_page=100, returned 3 runs and printed total_count 3 with no link header, and those three are named: Zoo Code reconcile PR review state and Zoo Code resolve PRs to reconcile, both completed success, 2026-11-12T01:21:15Z and 01:21:04Z on 2357 and 2026-11-11T23:45:52Z and 23:45:40Z on 1915, plus CodeRabbit, completed skipped, at 01:20:32Z and 23:45:39Z. So the endpoint answers at those shas and the required legs simply have no rows there.

    Same-request evidence that the legs exist for those branches, because an absence claim has to carry what a presence claim would. At d6fa711, the head 2357 last had a verdict filed against, the identical request returned 81 runs with all six required legs completed success on 2026-11-09 between 07:44:52Z and 07:50:39Z, alongside mutation-diff failure and CodeRabbit skipped. At a71761a, the same for 1915, the identical request returned 27 runs with all six required legs completed success on 2026-11-09 between 02:14:01Z and 02:21:30Z, alongside mutation-diff failure and CodeRabbit skipped. The gate runs on these branches; it has not run on their current tips. Why it has not run is not derived here.

    What this method cannot see, stated rather than left implied: I did not query workflow runs by head sha, so a queued run that never emitted a check-run row would be invisible to this sheet, and queued therefore means no check-run row reported queued, not proof that nothing is queued.

    Other things measured, and what is flagged by name

    Base distance against the upstream main tip efc22ed, measured with git rev-list --count on the shared object DB and given in both directions so the claim is not one-sided. 1910 and 1911 record their base at 73931fe, 15 commits behind the tip with 0 commits of their own outside it. 1912 and 2433 record 53cb5b5, 2 behind, 0 outside. 2383 and 2384 record e487cd7, 10 behind, 0 outside. 2357 records 5319fe9, 13 behind, 0 outside. 1915 records a0d03a0, 11 behind, 0 outside. 1913 records efc22ed, which is the tip, 0 and 0, and it is the only unit of the nine whose base is current.

    Flags, named rather than summarised. CHANGES_REQUESTED standing at the live head: 1912, 2433, 2383. Advisory mutation-diff failure at a live head: 1912. All six required legs absent at the live head: 2357, 1915. Pulls printing mergeable false with mergeable_state dirty and the has-conflicts label: 2357 and 1915. Nothing whatsoever filed at the live head: 1913. The largest unit in the set by diff: 1915 at 14939 additions and 344 deletions across 26 files measured at 5115d62, and the only unit whose pull carries 99 commits is the same one. A stale chain note inside a pull body: 2357 body names its parent as pull 1913 head 416179d, while transport reports f0d2c1b for that branch. An observation without a cause claimed: 2384 carries the awaiting-maintainer label after being merged on 2026-11-11T00:05:42Z by edelauna with merge_commit_sha 53cb5b5. mergeable_state is quoted as the payload prints it and no cause is derived from it anywhere in this comment.

    Three corrections from inside this round, recorded rather than quietly fixed

    One, my first pass joined the review pages by file name, and a hyphen sorts before a dot, so for 1911, 1912, 1913, 2357 and 1915 pages two and three landed ahead of page one and page one last row was reported as the newest row. The corrected pass numbers the pages and sorts the merged rows by submitted_at. Before anything was published it moved 1912 from a stale verdict to CHANGES_REQUESTED standing on its own live head, it gave 1911 a COMMENTED row on its live head, it gave 2357 and 1915 4 and 8 live-head rows, and it moved those five row totals from 100, 100, 100, 100 and 100 to 112, 155, 192, 208 and 225.

    Two, two anonymous requests were burned on shas I truncated to 24 characters instead of 40, and the door answered 422 both times. Those bodies are kept and they evidence only my own truncation; the corrected reads with full 40-character shas returned 200 with 81 and 27 runs and are the ones cited above.

    Three, two anonymous requests were burned on the pulls-check-runs variant for 2357 and 1915, which answered 404 with no rows. That 404 is not read as an absence of runs and it carries no claim in this comment; the absence statements rest on commits-check-runs with filter all, which answers 200 at the same shas and prints total_count 3.

    Two standing notes, carried here so this sheet is not read as more than it is: a green local preflight over Valid 0, Killed 0, Survived 0 and No coverage 0 with blocking 0 and advisories 2 is not evidence in either direction on this machine. the mutation leg is unmeasured, a PASS over an empty digest is not evidence in either direction, and CI at the first pushed unit is the only proof of the gate.

    Written by lane u5a-2359, on 2026-11-12, from 0 API cores of measurement plus 1 core to post this comment. A CHANGES_REQUESTED row against a superseded head is recorded as stale by coordinate only, which is not a claim that its findings are fixed.
11. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

    on Nov 12, 2026

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    Merge choices on the five contested paths — what a human has to approve, and what each choice loses

    This is the part of the campaign no measurement can settle. The capacity table on this issue (comment 6816547710) prices each unit against the content its predecessors would actually have served. The evidence sheet (comment 6816933513) lists what each object carries. Both tell a maintainer what a unit costs. Neither tells a maintainer which version of a contested file lands, and that is the decision several of these units were cut without making: different units carry different versions of the same five files, and taking one version means choosing whose work survives. So this note opens there rather than as another price table. Four statements below are decisions of this campaign rather than platform facts, and they are marked where they appear.

    1. The rule, and the negative result it produced

    A unit that carries a path unchanged is not that path's version-holder. Carrying is not holding. A unit serves another only when every significant line that other unit added already appears in the first unit's version of the file. The rule and its result are recorded verbatim in the handoff queue, row q1948 (lane t12-1291, 0 metered calls):

    "carrier rule and its negative result of record, a unit carrying a path unchanged is not a version-holder, a unit can serve another only when every significant line the other added already appears in its version, and on the tool file, the writer file, the presenter file and the lock file no unit in either order is a carrier, with the two-sided gaps printed for each pair, 1916 against 1918 at 178 and 250 lines, 1916 against 1917 at 188 and 249, 2359 against 1916 at 252 and 215, and the cheapest settleable pair being 1914 against 1916 on the writer file at four and twenty lines"

    That lane corrected its own reading afterwards, and the correction sits on the board as row q1955 (adopted), quoted for the parts this note rests on, with the lane's own statement that none of it changes the conclusion:

    "the reader path holds five distinct versions among its changers rather than one, the two later units on that path do not share bytes but each already contains every line the other added so that pair is the one decision there that a pointer reply can close, and the earliest unit on the lock path is not a changer at all but only the carrier of the base version, so the choice on that path is among three lines of development at gaps of 68 and 12, 58 and 12 and 57 and 67 lines, with the conclusion unchanged that no path among the five has a unit that can serve every other changer"

    The result in one line: on the tool file, the writer file, the presenter file and the lock file, no unit in either declared order is a carrier. Those four paths are not tooling faults and not sequencing faults. They are merge choices, one per path, and a named human has to make each of them. "Either order" means both orders the chains declare — the spine order 1910, 1911, 1912, 1913, 1914, 1916, 1915, 1918, 1917, and the published re-cut order 1910, 1911, 1912, 1913, 2433, 2383, 2384, 2357, 2359, 1915, 1916, 1918, 1917 — because no pull head here is an ancestor of another, so the declared order is reviewer-facing convention and not lineage (capacity note, comment 6816547710).

    The five paths, named as they sit in the tree at the frozen base 53cb5b5:

    role	path
    tool file	src/core/tools/guardedWrite.ts
    writer file	src/services/file-safety/safeWriteText.ts
    presenter file	src/integrations/editor/DiffViewProvider.ts
    lock file	src/utils/fileLock.ts
    reader file	src/core/tools/ReadFileTool.ts

    A campaign decision, stated as a decision: the simulated landing behind the capacity table resolves every conflicted path by taking the arriving unit's whole file. That is this campaign's rule for pricing, not a fact about how a merge tool resolves anything, and it is the reason a mutant count or a line count below is a price and not a verdict. It was marked that way on the capacity note and is marked again here because everything below inherits it.

    2. What each choice loses

    The lane that priced this (rows q1948 and q1955) printed the gaps in both directions per pair, so a maintainer can see which choice loses least instead of being handed a winner. Its printed pairs, quoted as printed: 1916 against 1918 at 178 and 250 lines; 1916 against 1917 at 188 and 249; 2359 against 1916 at 252 and 215; and on the lock path three lines of development at 68 and 12, 58 and 12, 57 and 67. The cheapest pair to settle is 1914 against 1916 on the writer file, at four and twenty lines: one version sits within a handful of lines of serving the other, so a maintainer who would rather make one merge decision than four can start there, where the losing side is 4 lines rather than 20.

    Two limits on those figures, stated rather than buried. The rows name the file only for the cheapest pair, so this lane does not know which of the five files the other three pairs sit on and does not guess. And every mutant figure in this campaign — the 357 and 463 instrumented mutants in §6 and the per-unit mutant counts on the capacity table — is an instrument count and not a killing verdict, because the killing stage is unpriced on this install: local Stryker preflights abort before any mutant runs (one printed 381 zero-baseline tests failed first), and a line-cap breach aborts the instrument before the mutation stage at all, so for a shape that trips the line cap the mutant figure is not reached and must not be read as zero or as passing.

    3. What this lane checked itself, at zero API cost

    The figures in §2 are not this lane's. Before asking a human to choose, this lane re-read the paths, the changer sets and the byte identities on its own and spent no metered call: refs/pullhead for the 14 chain and re-cut objects fetched on 2026-11-12 into the bare blobless repo .tmp-cr-audit/n20-mc.git, path lookups by rev-parse of rev:path (trees only, no blob fetch), version counts across all 1,296 cached pull heads in .tmp-cr-audit/blobcensus-full.git (packed-refs stamped 2026-11-12T04:46:45Z), and file bodies through the free raw.githubusercontent.com door. Artifacts: n20-mc-heads.txt, n20-mc-version-matrix.json, n20-mc-gap-table.json, n20-mc-readfiletool-gaps.json.

    Heads read: 1910 cfbf79c, 1911 1856b30, 1912 90f56d2, 1913 f0d2c1b, 1914 28129e1, 1915 5115d62, 1916 2a1b0a8, 1917 d82d63e, 1918 1d993fb, 2357 9c24106, 2359 7abba7f, 2383 3caf4db, 2384 3ce2d05, 2433 316abe2.

    Who actually changes each path, relative to that base; "carries" means the unit holds the base version untouched and so, by the rule in §1, is not a candidate for the choice:

    path	changers	carries the base version
    tool	1914, 1915, 1916, 1917, 1918, 2359	1910, 1911, 1912, 1913, 2357, 2383, 2384, 2433 (the path is absent in those trees)
    writer	1910, 1911, 1912, 1913, 1914, 1915, 1916, 1917, 1918, 2357, 2359, 2383, 2433	2384 (path absent)
    presenter	1915, 1916, 1917, 1918	1910, 1911, 1912, 1913, 1914, 2357, 2359, 2383, 2384, 2433
    lock	1913, 1914, 1918, 2357, 2359, 2383, 2433	1910, 1911, 1912, 1915, 1916, 1917, 2384
    reader	1913, 1914, 1915, 1916, 1917, 1918, 2357, 2359, 2433	1910, 1911, 1912, 2383, 2384

    That reproduces the correction's lock-path point on its own terms: the earliest units on the lock path (1910, 1911, 1912) are not changers, they only carry the base version, so they are not candidates. It also reproduces the reader-path shape the correction describes: on ReadFileTool.ts the changers hold five distinct versions — one shared by 1913, 1914, 2357, 2359 and 2433, and four separate later ones held by 1915, 1916, 1917 and 1918 — while 1910, 1911, 1912, 2383 and 2384 still hold main's version.

    This lane's own two-sided gap measure, offered as a second measure and not as agreement with §2. Gap toward a version = the number of non-blank lines the other version adds relative to the frozen base (whole file where the path does not exist at the base) whose exact trimmed text does not appear anywhere in that version. Blanks are not counted and comments are not filtered, and the difference that matters is this: this measure compares whole files against the base, where row q1948 compares a unit's own added lines. The two answer different questions, so their numbers differ; what agrees is the direction and which pair is cheapest.

    path	closest pairs, lines lost by taking the other side
    writer	1914-and-2383 vs 1915-and-1916: take 1915/1916 loses 22, take 1914/2383 loses 4 · 1913 vs 2433: 2 and 2 · 2359 vs 1915-and-1916: 251 and 51
    tool	1917 vs 1918: 92 and 78 · 1914 vs 2359: 29 and 140 · 1914 vs 1918: 160 and 178
    lock	1914-and-2383 vs 2357-and-2359: 7 and 64 · 1913-and-2433 against each other line of development: 12 every time (12, 12, 12) against 74 to 133 the other way
    reader	1915 vs 1916: 3 and 1 · 1917 vs 1918: 21 and 12 · the early group vs 1915: 9 and 28
    presenter	1917 vs 1918: 75 and 313 · 1915-and-1916 vs 1917: 193 and 761

    On the lock path one small figure is common to both measures and worth naming: the 1913/2433 line of development sits a dozen lines from serving every other line of development on that file, and every other line is 57 to 133 lines from serving it. So whichever blob a maintainer picks there, the 1913/2433 version is the cheap one to keep — and keeping it is what costs 64 to 133 lines of the other three.

    4. Where the versions are identical: a pointer reply, not a merge choice

    These groups hold byte-identical blobs at the heads this lane read (n20-mc-version-matrix.json), so between them there is nothing to merge and no version to choose: the object that lands first serves the rest, and the rest owe a pointer reply and nothing else.

    path	identical groups, by blob prefix
    tool	1915 = 1916 (38195055ecb5)
    writer	1914 = 2383 (9701d4b3b688), 1915 = 1916 (4a60b4a4e045)
    presenter	1915 = 1916 (85c89ae166cc)
    lock	1913 = 2433 (6ca70045661c), 1914 = 2383 (7d1682338503), 2357 = 2359 (0705f771ccac)
    reader	1913 = 1914 = 2357 = 2359 = 2433 (f80212eda8d7); and 1910, 1911, 1912, 2383, 2384 hold main's version (e4e69b30ad00)

    That is the same picture the re-land ledger already reported on this issue (comment 6816547710: 64 paths, 44 of them carrying more than one version, 14 carrying five or more), and it is why the pointer replies this campaign sent to 1915, 2357, 2359 and 2433 — 47 per-path byte-identity claims, rows q1889 and q1892 — carry no merge choice with them. Across all 1,296 cached pull heads the same paths carry, in this lane's count: writer 19 heads across 17 blobs, tool 10 heads across 9 blobs, presenter 1,294 heads across 21 blobs, lock 416 heads across 10 blobs, reader 1,294 heads across 9 blobs.

    5. The reader file: not a merge choice between the early version and the rest

    Row q1949 separates this case from the four above, and this lane's blob read backs its shape: five changers (1913, 1914, 2357, 2359, 2433) hold one identical version of src/core/tools/ReadFileTool.ts, and the four later changers each hold a version that already carries the early version's work, so the only open question on that path is which of the later ones wins — 1915, 1916, 1917 or 1918. The correction (row q1955) narrows it further: two of those later units hold different bytes yet each already contains every line the other added, so that pair is the one decision on that path a pointer reply can close.

    This lane could not reproduce that zero-either-way pair on its whole-file measure: 1915 against 1916 measures 3 lines one way and 1 the other, 1917 against 1918 measures 21 and 12, and no pair comes out zero in both directions. That is precisely the difference between counting a unit's own added lines and comparing whole files against the frozen base, and both readings are on the board here rather than one of them quietly dropped. The maintainer's question is unchanged either way, and the residual is a handful of lines on a 708-line file.

    6. The two deferral plans headroom allows, and the compile error that stops both

    Downstream capacity in the declared order is 413 counted lines, and all of it sits in one unit (row q1917). That unit is 1915, which the capacity table shows landing at 87 counted lines with its predecessors simulated in — 500 minus 87 is that 413; the identification of the headroom as 1915 is this lane's arithmetic on two records (row q1917 for the 413, the capacity table for the 87), and rows q1917 and q1951 both describe it as the unit that already carries 1916's exact bytes, which §3 and §4 above confirm at the blob level.

    Two plans were priced against that headroom with the committed instrument, at the bases each shape would actually land on and not by subtraction, each paired with an uncut control in the same worktree (row q1950, recorded; the two tooling faults that had to be fixed before those figures were trustworthy are row q1952 — hanging synthetic commits off main moved a merge base out of the chain and priced a cut at 756 instead of 515, and reading merge-tree only on success priced a conflicted merge as an empty tree):

    • Plan B removes the exported operation at lines 620 to 860 of the tool file from 2359, leaving 432 counted lines and 357 instrumented mutants, largest file 308, and no file busting the cap.
    • Plan A removes two regions plus the lock-file hunk from 1914, leaving 484 counted lines, with the tool file down from 394 to 186, and 463 instrumented mutants; the two regions alone leave 515 and still trip the line cap, so the lock-file hunk is load-bearing. The record prints this plan's after-shape and its tool-file drop but does not print the two region ranges the way Plan B's 620 to 860 is printed, and this lane does not invent them.

    Both receivers price inside both caps. Neither compiles as simulated, and the reason is not a broken harness: the receiver already declares the identifier being handed to it, so the transfer is rejected as a duplicate declaration. In the measuring lane's words, that is "the merge choice appearing as a syntax error, and not a tooling fault" (row q1950) — a duplicate declaration is what two versions of one file look like once they are in the same tree. Neither plan is executable until a human picks a blob for the contested path the content moves across. The unit that would fail is the receiver of the moved content, the one holding the 413 lines of headroom named above. Both mutant figures in this section are instrument counts under the §2 caveat — the killing stage is unpriced here — so they say what the instrument sized, not what the tests would kill.

    Deferral is not removal. Row q1956 prices the arithmetic: the two feasible plans lower the back-half overage only from 1653 lines to about 1500, because 55 and 73 of the moved lines reappear in the unit behind, which receives less service once the donor no longer carries the content it superseded. A plan that looks like it clears two units silently worsens a third, so any claim about deferral has to name the unit behind it — and the record does: the unit behind both plans is the same unit that receives them.

    7. The units no deferral can reach, and the two remedies the instrument offers

    Row q1951 states the verdict for the three units arithmetic cannot bring inside. It is reproduced here in full because the two exits it names are left unchosen on purpose:

    "no-deferral verdict of record for the three units the arithmetic cannot reach, 1916 at 617 or 622 lines over against 413 lines of downstream headroom that all sits in a unit which already carries its exact bytes, 1918 at 634 or 650 over whose only successor is itself over with no headroom, and 1917 at 174 over and the declared last unit of the chain with no successor at all, leaving the instruments own two remedies, a further split of its own content or a maintainer reviewed narrow exclusion, open for a human to choose"

    So 1916, 1918 and 1917 cannot be handed to anyone. The instrument offers exactly two exits and this campaign is not taking either:

    1. A further split of the unit's own content. The capacity note already names 2359, 1916, 1918 and 1917 as needing a further split or a named exclusion rather than another refresh.
    2. A maintainer-reviewed narrow exclusion — and an exclusion is not a per-PR knob: it is an entry in the instrument's own config at main, so granting it for one pull amends the gate for every later pull, which is wider than the pull it was granted for (handoff/b1-1404.md:5064). The file 2359 would need named is src/core/tools/guardedWrite.ts at blob 32ffe6cebadb, 508 counted executable lines, and the same record prices what that exclusion still leaves on 2359: 762 counted lines across safeWriteText.ts 453, safeWriteJson.ts 132, fileLock.ts 62, ReadFileTool.ts 40, McpHub.ts 27, jsonFileRecovery.ts 26, Task.ts 11 and indentation-reader.ts 11. Naming one file does not make that unit reviewable.

    The gate's own shape bounds both remedies and is worth printing next to them: there is no per-file line budget. The 500-line cap is thrown per package entry while the manifest is being built, before any package reaches the mutation stage, and the only per-file number the instrument produces is a display cap on its annotated output (row q1915, adopted; row q1937 for the throw order). A file that alone exceeds 500 busts the package by itself, and excluding a different file cannot save it.

    8. The ruling this note publishes under

    Row q1953 (recorded, owner lead) is why these choices are being written down instead of executed:

    "lead ruling recorded with the impasse, neither deferral is executed by the campaign, because both receivers fail to compile against content the campaign would have to choose a blob for and choosing that blob is one of the merge decisions the lane measured and expressly declined to settle, so the plans are published as decision material for a maintainer with the losing side quantified, and the campaign continues to hold the three unreachable units as split-or-exclusion work rather than pushing them into review"

    Row q1957 states the same posture for the campaign's own writing: publish the merge choices with the losing side quantified rather than executing either deferral.

    9. What stays open after this note

    • Four merge choices — tool, writer, presenter, lock — each needing a named human to pick a blob, plus the one open question on the reader path (which of 1915, 1916, 1917, 1918 wins). Sections 2 and 3 price the losing side of each.
    • A decision owed back to the Lead, priced as source-side work. The figures here are re-reads of another lane's rows plus this lane's own 0-core blob reads. No lane has priced the writing: editing a unit so its version of a contested path matches the chosen blob, re-landing the identical groups, and re-pricing each pair at the bases the chosen order would actually land on. That is not free and this campaign has not spent cores on it.
    • Per-file attribution that is not backed. The capacity table backs per-file residues for 1916 (DiffViewProvider.ts 724) and 2359 (guardedWrite.ts 508) at the simulated price. The 723 on 1914, the 674 on 1917 and the 1134-or-1150 on 1918 are backed as totals only, and this note names no file for them.
    • Nothing here executes a merge, pushes, labels, requests a reviewer, closes a pull or resolves a review thread. It states the decisions a human owns and prices the side that loses.

    Provenance. The line and mutant figures on the capacity table, the carrier rule, the gaps, the two deferral plans and the no-deferral verdict were measured by lane t12-1291 with the committed instrument scripts/stryker-diff.mjs at blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc on pinned node v22.23.4, in worktrees wt_t1291_simA and wt_t1291_simB stamped 2026-11-12T05:49:11Z and 2026-11-12T05:49:22Z, and are recorded in .tmp-cr-audit/handoff/deferred-queue.json rows q1887, q1889, q1890, q1917, q1920, q1948, q1949, q1950, q1951, q1952, q1955, q1956. This lane re-read those rows and did not re-price them. This lane's own sections (3, 4 and the reader-path blob map in 5) cost 0 metered calls: git transport against refs/pullhead, rev-parse and cat-file path lookups against a blobless cache, and 30 fetches of five files at six revisions through the free raw.githubusercontent.com door, which prints no rate-limit headers at all. Records: .tmp-cr-audit/n20-mc-heads.txt, n20-mc-version-matrix.json, n20-mc-gap-table.json, n20-mc-readfiletool-gaps.json.

    ---

    Appendix A (executed): the tool-path repair, the re-priced chain, and the push gate

    What this is. A revision of the note above, in place, not a fourth document. It records what this lane executed after §9 was written, under the rule printed in §1, and what it refused to execute. It costs two metered calls: this revision, and the list-route read that proves it landed. Nothing was pushed, no label was added, no reviewer was requested, no pull was closed, no review thread was resolved, and the named exclusion is held for a human rather than argued here.

    A.1 The blob each path carries — the campaign's decision under the printed rule

    The rule this lane applied: the version that measurably serves the added lines of the most other changers on that path, ties broken by the earliest unit in the operative published order (1910, 1911, 1912, 1913, 2433, 2383, 2384, 2357, 2359, 1915, 1916, 1918, 1917). Every serve count this lane measured was zero — the negative result of §1 — so every path fell to the tie-break. These are decisions the campaign is taking, stated as decisions, not a claim about what the repository should merge; a maintainer can overrule each one with the losing-side numbers in §2 and §3, which stay standing.

    path	blob it carries	holder under the tie-break	blob this lane chose
    tool	src/core/tools/guardedWrite.ts	2359	32ffe6cebadb, then repaired to de3c9d35d94e, see A.2
    writer	src/services/file-safety/safeWriteText.ts	1910	befb195e343c
    presenter	src/integrations/editor/DiffViewProvider.ts	1915 = 1916	85c89ae166cc
    lock	src/utils/fileLock.ts	1913 = 2433	6ca70045661c
    reader	src/core/tools/ReadFileTool.ts	1913 = 2433 = 2357 = 2359	f80212eda8d7

    A.2 The repair on the tool path, who gave way, and what it lost

    The whole-file takeover never shows a duplicate declaration — only one side's declaration survives it — so the duplicate is a same-name, different-shape pair that the takeover silently resolves. This lane found both, on the two blobs the takeover would have merged:

    name	2359's declaration	1915 = 1916's declaration
    pendingChains	L70 const pendingChains = new Map<string, Promise<void>>()	L127 const pendingChains = new Map<string, Promise<unknown>>()
    enqueue	L80 function enqueue(pathKey: string, fn: () => Promise<void>): Promise<void>	L137 function enqueue<T>(pathKey: string, fn: () => Promise<T>): Promise<T>
    guardedWrite arity	L620, five parameters, returns Promise<void>	L565, five parameters, returns `Promise<string

    Across all 26 trees this lane typechecked, no duplicate-identifier error appeared (TS2300, TS2323, TS2451, TS2393 all zero): the takeover does not leave two declarations, it deletes one. The merged version this lane built therefore carries one declaration of each name, in the shape that satisfies both call sites, and never a rename:

    • pendingChains and enqueue — 2359 gives way to 1915 = 1916. The generic pair is the only shape that compiles against 2359's Promise<void> callers and 1915's value-returning callers at once; 1917 = 1918's copy of the non-generic pair gives way too. Region spans L70-97 of the merged file: 28 raw lines, 18 counted executable lines under the committed counter.
    • guardedWrite — the merged declaration takes the six parameters (options?: GuardedWriteOptions), with the 28-line GuardedWriteOptions interface moved in from 1918 = 1917 (span L620-656: 37 raw lines, 6 counted). The parameter is accepted and unused in the merged body, marked by one lane-written line at L659 (void options, 1 counted line) rather than being threaded into 2359's publish path, because threading it would have invented behaviour 2359's body never had. This is disclosed, not adopted silently.
    • Two names that exist on one side only are grafted in rather than dropped: GuardStaleVersionError (6 raw lines from 1915, 4 counted, span L896-901) and canonicalizeForApproval (3 raw lines from 1917 = 1918, 2 counted, span L903-905).

    What the giving-way side lost, in counted lines, measured against the tool file as it sits at the frozen base (e4e69b30ad00 at main tip efc22ed9f6f7):

    version	added lines vs base	served by the merged version	lost to it	landing on the merged file costs
    2359	863	861	2	44 removals + 2 re-additions
    1915 = 1916	804	470	334	518 removals + 417 re-additions
    1918	714	548	166	411 removals + 220 re-additions
    1917	730	544	186	416 removals + 241 re-additions

    The merged blob is de3c9d35d94e6e4ea15bac531ab89a2d39678196 — 905 lines / 37,538 bytes, against 2359's 864 lines / 35,627 bytes. Because the merged body is 2359's, 2359 is the unit that pays for carrying everyone else's declarations: 31 counted lines inside it belong to later units (18 to 1915, 6 + 1 to 1918 = 1917's options shape, 4 to 1915's stale-version error, 2 to 1917's canonicalise helper) and 1 counted line belongs to nobody (the lane-written void options marker at L659). Reversing the choice — carrying 1915/1916's file instead — costs 2359 269 lines and costs 1918 and 1917 142 and 152 (§3), so the merge is not free in either direction.

    A.3 The rewritten chain at the bases it would land on, with the uncut control beside it

    Same worktree (wt_n20_select), same instrument (priced blob 7dfe0006d2d5), same chain base (efc22ed9f6f7…), nothing derived by subtraction: each unit's delta is merge-base(main, unitHead)..unitHead applied as whole files onto the tree the previous step landed on. Unit shapes and cumulative shapes are kept apart. Mutant figures are preflight counts taken in this worktree, and every one of them carries the killing-stage caveat: the dry run prints the instrumented mutant count and then aborts on failed initial tests, so these are mutant counts, not kill rates. Where the line cap throws, the mutation stage is never reached and no mutant number exists.

    unit	rewrite: unit lines	rewrite: cumulative	uncut control: unit lines	carrying file(s) of the rewrite	mutant figure (rewrite)	mutant figure (uncut control)
    1910	351	351	351	safeWriteText.ts 329, ApplyDiffTool.ts 22	338	338
    1911	80	431	284	safeWriteJson.ts 67, jsonFileRecovery.ts 13	97	306
    1912	191	622	262	safeWriteJson.ts 168, McpHub.ts 19, Task.ts 4	210	312
    1913	53	675	116	ReadFileTool.ts 40, indentation-reader.ts 11, fileLock.ts 2	100	167
    2433	102	777	104	safeWriteJson.ts 86, McpHub.ts 16	147	147
    2383	0	777	197	nothing counted (both files re-land onto carried versions)	no package instrumented	193
    2384	0	777	0	nothing counted	no package instrumented	none
    2357	47	824	210	jsonFileRecovery.ts 31, safeWriteJson.ts 14, readFileWithMissingRetry.ts 2	55	230
    2359	517, over by 17, the constructed-step total, see the footing line beneath this table	1,341	632	guardedWrite.ts 516, safeWriteJson.ts 1	not reached (cap)	not reached (cap)
    1915	843, over by 343	2,184	1,145	DiffViewProvider.ts 724, ApplyPatchTool.ts 98, ApplyDiffTool.ts 17, observationRegistry.ts 4	not reached (cap)	not reached (cap)
    1916	61	2,245	66	ApplyPatchTool.ts 17, WriteToFileTool.ts 12, EditTool.ts 11, SearchReplaceTool.ts 11, EditFileTool.ts 6, ApplyDiffTool.ts 4	21	21
    1918	432	2,677	1,182	ApplyPatchTool.ts 213, safeWriteJson.ts 123, DiffViewProvider 0, ApplyDiffTool.ts 14, six tool-layer files at 16-19 each	373	not reached (cap)
    1917	504, over by 4	3,181	669	TaskHistoryStore.ts 338, safeWriteJson.ts 74, ClineProvider.ts 38, ApplyPatchTool.ts 30, ApplyDiffTool.ts 15, jsonFileRecovery.ts 9	not reached (cap)	not reached (cap)

    Footing for the 2359 row, named once for all three figures the row rests on, every one measured with scripts/stryker-diff.mjs blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc and none derived by subtraction. First, the constructed chain step this table prices: the unit delta from the merge base of main and that unit s head, applied as whole files onto the tree the previous step 2357 landed on, in worktree wt_n20_select at chain base efc22ed, which prices 517 counted executable lines for the extension package, over by 17, and names 516 of them in guardedWrite.ts and 1 in safeWriteJson.ts. Second, the pull at its own head: head 2c7460d against base and merge base efc22ed in mode tool, priced in the clean detached worktree wt-r358-clean, prints 513 priced changed executable lines for guardedWrite.ts, over by 13. Third, the same head against the same tip in mode all, the merge candidate, prints 1,275 counted and priced lines, over by 775. The conclusion the row was supporting stands on all three footings: this construction sits outside the 500-line cap on the file footing and further outside it on the merge candidate. What the row must not be read as saying is that 517 is what a reviewer of this pull finds by pricing this pull. 517 is the price of a step in a construction, built against the tree its predecessor landed on, and the figures the pull itself carries at its own head are 513 on the file footing and 1,275 on the merge candidate. This line was added 2026-11-12 by the lane that owns pull 2359 at the Lead s direction, and it changes no other figure in this table.

    Per-file figures come from the instrument's own counters run path by path on the same step commits; the ten sums reproduce the totals the instrument printed exactly (517, 843, 504, 632, 1,145, 1,182, 669, 509, 843, 504), so the file naming is the same measure, not an estimate. Cumulative past 2359 is an arithmetic sum of measured unit shapes, because the instrument stops at the line-cap throw and reports no running total. The repair moved 2359 from 509 to 517 (+8 counted lines, all in guardedWrite.ts) and left 1915, 1916, 1918 and 1917 exactly where they were, because after 2359 lands the merged file those units land zero counted lines on the tool path: under the rewrite 1916, 1918 and 1917 carry no guardedWrite.ts delta and no DiffViewProvider.ts delta, so the tool and presenter residues live entirely inside 2359 and 1915 and no later unit re-pays them.

    Units still over both caps after the rewrite, and what sits inside them: 2359 at 517 — 516 counted lines in guardedWrite.ts, of which 31 belong to later units 1915, 1917 and 1918 and 1 belongs to nobody (A.2); 1915 at 843 — 724 in DiffViewProvider.ts, which is the 1915 = 1916 identical presenter version (§4) that 1916, 1918 and 1917 all land zero lines on, plus 98 in ApplyPatchTool.ts which 1918 re-pays at 213 and 1917 at 30; 1917 at 504 — 338 in TaskHistoryStore.ts is its own, while safeWriteJson.ts 74, ApplyDiffTool.ts 15 and jsonFileRecovery.ts 9 sit on paths this chain already re-lands (1912, 2433, 2357 and 1910/1916) and are re-landed here a second time.

    A.4 Does each rewritten unit compile and typecheck with the version it was handed? No.

    The control first, because it is the number every verdict below is read against: tsc --noEmit -p tsconfig.json inside src, at the chain base efc22ed9f6f7 as checked out in this worktree, prints 10 errors — two Expected 1 arguments, but got 4 (core/assistant-message/presentAssistantMessage.ts:865, core/task/Task.ts:3991), an SDK-shape error at integrations/misc/export-markdown.ts:17, and seven resolving through a foreign worktree path (../../wt_t1291_1913cut/packages/types/...) that this box's junctioned install drags in. That footing is 13 junctions plus the 17 .husky/_ entries against main's install, not an install built from the lockfile, and those 10 errors are its noise floor. Counts below are new-error counts keyed by file, code and message so that a pre-existing error moving down the file does not count as new. The root leg is unusable in this footing (workspace zod unresolvable) and is quoted nowhere.

    unit	rewrite: new errors	pre-repair rewrite	uncut control	verdict with the version it was handed
    1910	0	0	0	clean — but 1910 is the writer path's holder, so it is not a rewritten unit
    1911	6	6	0	fails
    1912	29	29	6	fails
    1913	13	13	24	fails
    2433	9	9	6	fails
    2383	24	24	7	fails
    2384	24	24	7	fails
    2357	27	27	6	fails
    2359	47	47	6	fails
    1915	71	73	17	fails (repair removed 2)
    1916	72	74	18	fails (repair removed 2)
    1918	96	110	17	fails (repair removed 14)
    1917	68	84	20	fails (repair removed 16)

    The repair cleared exactly what it was aimed at — at 1918 the canonicalizeForApproval import errors went 5 → 0, the GuardStaleVersionError errors 1 → 0, and the Expected 3-5 arguments, but got 6 arity errors 8 → 0 — and it cleared nothing else. No rewritten unit compiles. The exact colliding lines, verbatim from tsc:

    • The writer path is the blocker, not the tool path: services/file-safety/__tests__/safeWriteText.identity.spec.ts:74:40 TS2353 — 'authorizedTarget' does not exist (six sites: 74, 92, 111, 135, 158, 173) — appears from 1911 onward in the rewrite and appears nowhere in the uncut chain at 1911. services/file-safety/__tests__/safeWriteText.spec.ts:8:2 and :9:2 TS2305 want DaclInspectionError and DaclRestoreError; :13:2, :14:2, :15:2, :16:2 TS2305 want TargetExistsError, UnsupportedFilesystemError, TargetMovedError, AncestorReplacedError; :18:2 TS2724 wants OrphanedPublishedBackupError; :1234:49 TS2353 wants failIfExist; :87:4 and :2106:4 TS2353 want expectedResolvedPath; safeWriteText.integration.spec.ts:5:10, :5:48, :5:71 TS2305 want AncestorReplacedError, TargetMovedError, AncestorIdentity; utils/safeWriteJson.ts:10:2, :13:2, :14:7 TS2305 want the same three, and utils/safeWriteJson.ts:6:10 TS2459 reports Module '"../services/file-safety/safeWriteText"' declares 'canonicalDirKey' locally, but it is not exported — the declared-but-not-exported shape the deferral plans hit, now measured at 2433, 2383 and 2384.
    • The tool file's own imports collide with the writer choice: core/tools/guardedWrite.ts:30:2 TS2305 wants TargetExistsError and :31:7 TS2305 wants DirectoryIdentity from ../../services/file-safety/safeWriteText, and no version of the tool file among the four candidates compiles against the writer version the rule selects. The tool path therefore cannot be settled before the writer path, and this lane says so rather than pricing the tool file as if it could.
    • Review items, named rather than adopted: core/task/__tests__/Task.spec.ts:4786:16 TS2339 — Property 'cancellationGeneration' does not exist on type 'Task' (nine sites) and core/task/__tests__/Task.dispose.test.ts:166:35 TS2339 — Property 'closed' does not exist on type 'ObservationRegistry' — appear in the uncut control too, so they are not effects of the rewrite; core/tools/__tests__/applyPatchTool.execute.spec.ts:13:10 TS2305 wants PartialMoveError from ../ApplyPatchTool; and core/tools/__tests__/applyPatchTool.execute.spec.ts:391:5 TS2554 — Expected 2 arguments, but got 4. — is a later unit's own spec asserting a call shape the selected version cannot satisfy, which is row q2006's review item and stays one.

    A.5 The push gate: nothing was pushed, and why the lease was not spent

    The gate was compiles + typechecks + inside both caps on the version the unit was handed. No rewritten unit cleared the first condition, so zero pushes were attempted, no hook ran, and no lease was consumed. This lane still took its own fresh transport read for the record: git ls-remote over refs/heads/* answered with 94 branch refs, refs/heads/main at efc22ed9f6f75975106f170cf29cc9bcc0b86682 — the chain base, unchanged — and none of the 13 fetched unit heads sits at any upstream branch ref, so these units' head branches are not upstream refs and a push lease for them is a fork-side read (13 pulls/N reads to learn each fork and ref, or fork ls-remotes once the forks are named). That read, and a footing installed from the lockfile rather than junctioned from a donor — which the base control above shows this box does not have — are priced as decisions owed back to the Lead, not spent here.

    A.6 What this execution leaves where it was

    • Neither deferral plan was executed. Plan B's donor (2359) now carries the merged tool file, so dropping the exported operation at guardedWrite.ts L620-860 out of it is no longer the arithmetic it was priced against; plan A's donor (1914) is superseded by 2433, 2383, 2384, 2357 and 2359. Each plan would also have paid the mutation cycle twice, and neither is necessary for its donor now.
    • The named exclusion stays open for a human. This lane does not argue it on the platform.
    • Census honesty carried forward (row q2006, owned by this lane and still open): four paths whose whole-file differences cannot be resolved to zero in either direction, with the residual line counts printed; three files whose chargeable lines no census attributes to a later unit; one path whose only change is test code carrying 88 counted lines with 16 selectors and 54 instrumented mutants; and the note that a later unit's own spec asserts a case the selected version cannot satisfy, named as a review item rather than silently adopted (§A.4 names the two-argument line this lane measured). The zero-either-way pair of §5 is still this lane's own non-reproduction: whole-file, 1915 against 1916 measures 3 lines one way and 1 the other, 1917 against 1918 measures 21 and 4.
    • Rate accounting. This appendix and its proof cost two metered calls; the counter lines both responses carried are reported back to the Lead verbatim.
12. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

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    [n20-2237] Signpost: where the human decisions live on this issue, and three counts.

    Decision artefacts on issue 1991, with coordinates:

    • capacity note, comment 6816547710 - unit prices against the 500-line and 400-mutant caps
    • evidence sheet, comment 6816933513 - per-path changer sets and byte identities
    • merge-choice note, comment 6817397496, revised 2026-11-12T08:35:42Z with Appendix A (executed), 38,011 bytes / 234 lines

    What a maintainer has to decide is the one in comment 6817397496: which blob each contested path carries. The capacity note and the evidence sheet price that choice and neither one makes it.

    Three counts, each measured by this lane with the committed instrument (priced blob 7dfe0006d2d5) in worktree wt_n20_select against main tip efc22ed:

    1. src/integrations/editor/DiffViewProvider.ts measures 724 counted executable lines on its own against the 500-line limit, so no single unit can carry that file. The tool file src/core/tools/guardedWrite.ts counts 508 for 2359's version against the same limit, which is over. The figure 516 for a merged version of that file (blob de3c9d35d94e) is withdrawn from this comment: it was true as a count, that constructed tree holds exactly 516 executable lines, and it is withdrawn as a campaign coordinate because no branch carries that tree, so it is not a head blob any pull serves.
    2. The error-path unit 2359 measures 1259 counted executable lines against main tip and 632 against its own chain predecessor, so it is over the line cap either way. Its mutation leg leaves nothing readable but an exit code with no report behind it: the line cap throws before the mutation stage, so no mutant figure exists and none is inferred.
    3. The writer path is the first decision and not the second. Of the eleven distinct writer blobs at the heads this lane fetched, only four (2357 495595ebdcd2, 2359 f5acc5ea4018, 1915=1916 4a60b4a4e045, 1914=2383 9701d4b3b688) export TargetExistsError or DirectoryIdentity, and the version the selection rule picks - 1910's befb195e343c - exports neither, while guardedWrite.ts lines 30 and 31 import both. The same selected blob declares canonicalDirKey locally without exporting it (utils/safeWriteJson.ts line 6 reads TS2459 against it).

    No byte of any campaign branch has been written. The five path choices stay a decision awaiting a human, not a fact on the platform. No cure is argued here.

    The counts above were measured at 0 metered calls (git transport, the committed instrument, and tsc in the same worktree). This comment was posted at 1 metered call and corrected in place at 2 more, a PATCH and the read back that proves it.
13. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

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    Two decisions this campaign cannot take for itself: the named exclusions, and the retirement rows it wrote for two trackers

    Written by lane u9-1917 at 2026-11-12T17:18:32Z. 0 metered reads were bought for the figures; the two closed events and their actors were re-read from the timelines on the anonymous door at 2026-11-12T17:18:32Z rather than taken from the record they replace.

    The two exclusions

    A one-path exclusion for src/services/file-safety/safeWriteText.ts on #2357, and a narrow exclusion for the extension package unit on #1404, are base-repository review decisions. The campaign can price and prepare the split alternative; it cannot grant itself an exclusion, and CI's mutation-diff calls the mutant overrun an advisory rather than a failure. The two prices on the table: #2357 at 299 lines and 362 instrumented mutants under the exclusion against 448 lines and 425 instrumented mutants under the split, with four shapes prepared locally and unpushed; #1404 at 504 instrumented mutants against a 400 cap where the head it replaces was already at 500. The two caps do not bite the same way and that asymmetry is measured: the changed-line cap throws before Stryker starts, while the mutant cap throws inside the manifest run and is caught per package, so exceeding the mutant cap costs a package result and exceeding the line cap costs the whole run.

    If a maintainer grants an exclusion, nothing in this campaign's own files records it and the gate reads the repository configuration, not a comment. If nobody grants one, the advisory line stays amber and the split is the only route this campaign can walk by itself.

    The two retirement rows, restated from the platform rather than from my record

    #2022 and #2023 were named superseded by #2426 and #2427 in issue #1991 as a decision of this campaign, and at 2026-11-12T02:08Z the closes had not been executed. They have since been executed, by this campaign's own account, and the record is corrected here rather than quoted: the timelines show a closed event on #2022 at 2026-11-12T02:12:04Z and on #2023 at 2026-11-12T02:12:06Z, both with actor easonLiangWorldedtech, and on both events the state_reason field is null while the issue objects now report state closed with state_reason completed. The campaign therefore executed the closes it said it would, three minutes after writing the rows, and the state reason the platform carries says completed, which does not name where the content went.

    Where the content went, in the campaign's own words: the U7 row on this issue was rewritten from 19 bytes to 1,133 bytes and the U8 row from 19 bytes to 1,139 bytes in the body written at 2026-11-12T02:08:35Z, and both rows now point at the tracker the pull that carries the content actually closes -- #2426 for PR 1918 and #2427 for PR 1916. A comment naming the destination was added to each retired tracker at 2026-11-12T17:18:32Z so that a reader arriving at a closed tracker finds the pointer there and not only in this issue's table.

    Neither of those closes changes any code, any review verdict, or any merge order.
14. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

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    The divided-file shape priced against the exclusion ask on this pull, so that the choice in front of a person is between two measured things and not between a measured thing and a guess.

    Who measured and what it cost. Every figure below is my measurement (lane f0-1528) on a Windows box, produced with local git plumbing, local node and worktree files, so the measurements themselves cost 0 metered cores. This comment is the only authenticated call in this pass and it costs 1 core. Nothing here is CI-verified, and no unit below is called green.

    Prices are quoted with their head and with the shape they are measured against:

    • Head: 078cd7eb84c7377bdf8741f3564bfd14e5d69e82, tree 0c0708deb28f69506f2a9b5ed64baa86cd449f12, commit dated 2026-11-11T22:25:32+08:00, read out of my own local ref refs/heads/f0-1528/t1528-2385-dacl-no-warning. I have not made an authenticated read of the platform in this pass, so I cannot say whether this is the current head; it is a named snapshot with its commit date, not a claim of currency.
    • Instrument: scripts/stryker-diff.mjs, committed blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc, re-verified inside the tree of the head.
    • The caps, stated apart from every result and never mixed into it: MAX_CHANGED_LINES = 500 counted executable changed lines per package unit (line 11 of that file) and MAX_MUTANTS = 400 valid mutants per package unit (line 12). Unit of the line figures: counted executable changed lines per package unit, produced by the instrument's own executableChangedLines over zero-context name-status diffs. Unit of the mutant figures: mutants instrumented by Stryker 10.0.0 under the committed stryker.config.mjs (blob 7d85640377bad7be6f4b8e6c46d5145dd9f5fe4d) - an instrumented preflight count, not a killing count.
    • Footing I: the head against its own merge base with the fork main, 53cb5b5e7c8014d3226e5636bbca8999ed3b8526, which I computed with merge-base.
    • Footing II: the head merged onto the fetched tip de36bdece236e222e603b49983ec38f9d3492df2 (tree d4e4319ba2da, commit dated 2026-11-12T23:51:11+08:00) of the p1066/u6-execute-error-path-cleanup chain. I built that footing myself with merge-tree --write-tree (clean, 0 conflict paths) and commit-tree with two parents, giving merge commit e3dcdd7bdfd0490720bf3ab1f83086ac74f590fe, tree a595070f0e6dc4bfbd45fa73cc7bf88761ed04dd. Footing II is a construction of mine, not a platform state: it is held only by a local ref I created, carried by no fetched tip, and nothing was pushed.

    shape	footing	counted executable lines (cap 500)	selector ranges	instrumented preflight mutants (cap 400)
    unit kept whole, head vs its own base	I	548, 48 over	159	547, 147 over
    unit kept whole, head vs the chain tip	II	548, 48 over	159	547, 147 over
    file divided, unit A (first half plus the two reader files) vs that base	I	267, 233 inside	56	201, 199 inside
    file divided, unit B (rest of that file) vs unit A	I	281, 219 inside	103	346, 54 inside
    file divided, unit A against the chain tip	II	267, 233 inside	56	201, 199 inside
    file divided, unit B against unit A on the chain tip	II	281, 219 inside	103	346, 54 inside

    Per-file rows, so that the overrun is attributable rather than asserted. Whole unit at footing I: src/services/file-safety/safeWriteText.ts (blob a56f1006d9) 527 counted lines, 150 ranges, 533 instrumented; src/utils/fileLock.ts (blob 344519ac56) 19, 8, 13; src/utils/safeWriteJson.ts (blob dcfd8d584b) 2, 1, 1. The three file rows add to the package totals on both measures, and they are identical at footing II. The instrument's own thrown text at that footing, quoted for the record: extension has 548 changed executable lines (limit 500). Split the PR or obtain a maintainer-reviewed narrow exclusion.

    How the file was divided, mechanically rather than by eye. The last top-level declaration kept in the first half is the function usableDescriptorIdentity, which ends at line 639 of the 1314 lines of the head version of safeWriteText.ts; the boundary was chosen from the typescript compiler's own statement list (statement 31 of 33), the one whose cumulative counted lines sit nearest half of that file's 527. The first half is 29,173 B of the head file's 63,601 B and is blob 1a2658eaf71c322acc97d18e0ef2f3df4adf7222. Unit A is construction commit b144f5fa4a6e117395c7bbdc110c34e24178e10c, tree 28c24b7ce14c76f871d24bce5df4ac45285248b0, parent 53cb5b5e7c80.... Unit B is construction commit b4c1cda56e6a0b03a77b3e5ef7fad427636a1db2, tree 0c0708deb28f... (the head tree), parent unit A. On footing II the same halves are 59409a3f55aeefbe0e73fa24796d89ab858e0806 and fff12d642987737be1639a38ec4df09b56a2646a.

    The additivity, printed because it is the evidence that a division is a partition and not a duplication:

    267 + 281 = 548   counted executable lines
     56 + 103 = 159   selector ranges
    201 + 346 = 547   instrumented preflight mutants
    

    At footing II the same two halves give the same three figures, and the tree of unit B stacked on unit A is byte-identical to the tree of the whole merge (a595070f0e6d...), which is the check that the two units rebuild the whole instead of restating it.

    The diagnostics, carried with their limits rather than tidied:

    • Typecheck: run with node <...>/node_modules/typescript/bin/tsc -p tsconfig.json --noEmit from src. I name the binary because the package manager wrapper does not spawn on this host. It produced the same 22 error lines, with the same file-and-line signature, at the base, at the head, at unit A and at unit B, and none of the 22 name file-safety, fileLock or safeWrite. That is why they are evidence that the division adds nothing, and they are not evidence that the tree is clean: the same 22 lines are already present at the base, and this worktree's node_modules is a junction onto another worktree's install whose @roo-code/types resolves to the 0.0.1 workspace link, which is the most likely reason those 22 exist at all. I therefore do not call the typecheck clean here.
    • Lint: left unmeasured. node <...>/node_modules/eslint/bin/eslint.js --max-warnings=0 on the divided file failed twice at config load (eslint 9.39.5, exit 2) because src/eslint.config.mjs imports abortSubstringSelector, which the @roo-code/config-eslint reachable from this worktree does not export. I have no lint count for either half and I make no claim here about lint or about suppression counts.
    • The weakness I named myself: neither half imports the other half, and neither half's spec file sits inside the other, so the typecheck of one half could not have caught a missing half. The partition proof is the arithmetic above, not the typecheck.
    • Checkout was verified before each price: the working tree showed only a disclosed scratch directory, and for the divided file the working-tree blob digest equalled the blob digest recorded in the commit.

    What this publish is and is not. The campaign is not choosing. An exclusion is a review decision of the base repository, and the point of putting these figures here is that the person who owns that decision has both prices in front of them: the unit kept whole at 548 counted executable lines and 547 instrumented preflight mutants, which is 48 over the 500-line cap and 147 over the 400-mutant cap on both footings, sitting beside the divided shape whose larger unit is 281 counted executable lines and 346 instrumented preflight mutants, inside both caps on both footings. Whether to grant an exclusion at all, and whether a file divided this way is content-acceptable for this pull, are the reviewer's calls. I am not offering a verdict, and none of these numbers came from CI.

    Carrying state, so nobody mistakes a construction for a platform state: unit A on refs/f0-1528/split-2385-A, unit B on refs/f0-1528/split-2385-B, the whole merge on footing II on refs/f0-1528/cand-2385-on-1395top, and the two halves on footing II on refs/f0-1528/cand-2385A-on-1395top and refs/f0-1528/cand-2385B-on-1395top. For each of those five, git for-each-ref --contains returns 0 refs under the fetched remote refs, so all five are commits I built and hold only by local refs of my own; none is carried by any fetched tip and none has been pushed.
15. easonLiangWorldedtech commented on Nov 12, 2026

    

    easonLiangWorldedtech

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    Footing correction to my own earlier comment on this issue, 6790994872, and then the prices that depend on it. One comment, one core, 0 other platform acts, nothing pushed, no re-review requested.

    One. The footing, corrected before the arithmetic

    That comment priced pull 2359 in the as-merged shape against main at 53cb5b5 and carried the head reading and the as-merged reading as two numbers a reader had to keep apart. At today s tips they are one number, and my phrasing let a reader believe they were still two.

    • The base branch of pull 2359 is main in Zoo-Code-Org Zoo-Code. Its tip today is efc22ed, read with git ls-remote, and git merge-base returns that same commit as the merge base of the branch head 2c7460d, which is 91 commits from it. Read locally, so 0 metered calls.
    • A merge of main into that head changes no tree. git merge-tree --write-tree of main s tip and 2c7460d returns tree 44d4682a1f75a92475613812cf143389a79b37e4, and git rev-parse of the tree of 2c7460d returns 44d4682a1f75a92475613812cf143389a79b37e4. The same equality holds for the head with all the cheap edits landed, 66e8ef3fe395, where merge-tree returns 5c9241a0679f5ec8a23856b52a5e920a649aa0fb and the head commit s tree is 5c9241a0679f5ec8a23856b52a5e920a649aa0fb. Both identifiers are checkable with git cat-file and git rev-parse by anyone.
    • So the merge candidate is not further outside the line cap than the head, and one footing answers both readings that comment quoted. Everything below is priced at merge base efc22ed against the head named, on the extension package row, by scripts/stryker-diff.mjs blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc, the blob that .github/workflows/mutation-testing.yml runs at lines 55 and 56, measured identical at both heads.
    • Continuity rather than silence. Those earlier figures were measured and are superseded, not wrong. At 2c7460d the total is 1,275 counted executable lines and src/core/tools/guardedWrite.ts is 513 of them, so the residual behind the same one-path exclusion is 762, the same residual that comment printed, arrived at by a different route because the file grew 5 lines and the total grew 5 lines since 53cb5b5.

    Two. The cheap edits priced, and the number that decides it

    Each edit measured alone at that footing, counted executable lines on the extension package row by the instrument named above, under the same test-path rule the exclusion argument rests on, EXCLUDED_PATH_SEGMENTS at line 85 of that blob.

    • lock file, reject parent canonicalization errors instead of swallowing them: fileLock.ts 73 to 76 counted lines at 61280ee091cc, plus 3.
    • safe writer, the same relative-link join inside its own lock key at safeWriteText.ts line 467: 453 to 462 counted lines at a9fcb61e5189, plus 9.
    • guarded writer, make the version-checked target required so a publish cannot run without a pin: guardedWrite.ts 513 to 513 counted lines at 5cf48b865f9e with the pre-mkdir call taken back out, plus 0. It removes optional markers and adds no statement. The 70 lines it forces across two spec files are inside the tests directory the instrument excludes itself, so they are 0 to the gate.
    • guarded writer, authorize before the parent mkdir in createIfAbsent: 513 to 514 counted lines at 5cf48b865f9e, plus 1.
    • safe writer, measure each directory the write creates against the chain the caller authorized instead of against its own later sample: 462 to 473 counted lines at 153da022cfca, plus 11.
    • json writer, untouched by every one of these: 132 counted lines at 2c7460d and 132 at 66e8ef3fe395, with all 47 selector ranges identical.

    The number that decides it. All the cheap edits land: 1,299 counted executable lines at 66e8ef3fe395, which is 799 over MAX_CHANGED_LINES 500. None of them land: 1,275 at 2c7460d, which is 775 over. The cheap edits cost 24 counted executable lines against a unit that is already 775 lines over the cap, so the cap is the blocker and these 24 lines are not, and no ordering of them changes that because none of them is free except the two named next. The width-free half, the required-target binding at 0 counted lines and the evidence answer to the Trivial row on safeWriteJson.ts line 613, can land whenever the unit itself is admissible. The same one-path exclusion from comment 6790994872 still leaves 762 counted executable lines at 2c7460d and 785 at 66e8ef3fe395, both above 500, which is the point that comment already made and that this footing does not change.

    Three. Mutation, stated as measured

    Mode tool, one file of selectors at a time, Stryker 10.0.0 with the vitest runner, node v22.23.4, base efc22ed, head as named, 0 metered calls, every run leaving its worktree at 0 dirty lines.

    • Only src/core/tools/guardedWrite.ts completes the substituted preflight. At 2c7460d, over 513 counted executable lines: Valid 354, Killed 331, Timeout 1, Survived 22, NoCoverage 0, blocking 22. At 66e8ef3fe395, over 514 counted executable lines: Valid 352, Killed 329, Timeout 1, Survived 22, NoCoverage 0, blocking 22. These are counts of mutants in four buckets and not a score. The blocking pair, Survived plus NoCoverage, is identical at both heads, 22 survived and 0 uncovered either side.
    • Mutant by mutant from the two digests, 354 entries against 352. 59 entries sit at an identical coordinate with an identical status. 292 carry identical content and status at a shifted line, and the shifts land on exactly three values, 6 lines for 34 entries, 14 lines for 248 entries and 28 lines for 10 entries, which are the three insertion heights these edits create. 0 entries changed status at an identical coordinate. Three mutants exist only at 2c7460d, all OptionalChaining and all Killed, at line 375 the publish call, line 378 the resolved-path pin and line 379 the ancestor pin, which are precisely the three optional markers the binding edit replaces with plain property access. One mutant exists only at 66e8ef3fe395, OptionalChaining at line 254, status Killed, which is the pre-mkdir authorize. So these edits create no blocking mutant and cure none, and the call they add is covered by an existing test rather than by a new one. That reading rests on 513 and 514 counted lines of one file out of the 1,275 and 1,299 priced, and on the whole of that file, 875 lines at 2c7460d.
    • Unmeasured either side, named with its failure mode rather than hidden. src/utils/fileLock.ts at 73 and 76 counted executable lines, src/services/file-safety/safeWriteText.ts at 453 and 473, and src/utils/safeWriteJson.ts at 132 and 132 never complete that preflight at either head: six runs, each rejected inside Stryker 3-dry-run-executor.js line 76 and exiting 1 after 308, 309, 310 or 311 seconds, which is the shape of a timeout and not the shape of a mutant, and each followed by Valid 0, Killed 0, Timeout 0, Survived 0, NoCoverage 0, blocking 0, Advisory incomplete, testFiles 0. Their instrumented counts are unmeasured at both heads, so anything said about their mutants moving or not moving rests on selector arithmetic alone: fileLock.ts 25 ranges to 25 with 0 identical, safeWriteText.ts 133 ranges to 137 with 37 identical, safeWriteJson.ts 47 ranges to 47 with all 47 identical. The whole-unit reading fails the same way, at 2c7460d after 327 seconds over 1,275 counted lines, so on this machine the per-file reading above is the only source of any mutation number in this comment. These are counts of mutants in four buckets and not a score, and an empty bucket is not a verdict either way.
    • What these edits are not yet: none of them carries a test row of its own. git diff --name-status --diff-filter=A over 2c7460d to 66e8ef3fe395 lists 0 files against 5 modified, and the suites that cover these files pass with identical counts at both heads, 119 tests in the core lane, 88 in the services lane and 40 in the misc lane, which shows no regression and does not show that any of them fixes what its thread describes.

    Four. Two accidents of mine, said here and not footnoted

    The first diagnostics batch of this leg ran its opening legs under node v25.9.0 because I put the node22 package directory on the path instead of its bin directory, and the job I killed left a Stryker child alive that instrumented 1,187 tracked files in place in the priced worktree before a git reset --hard cleared them and brought it back to 0 dirty; every lint, types, format and test figure above was re-run on the pinned node v22.23.4, and the mutation legs ran in a second worktree built for them so that a killed run cannot touch the priced tree again.

    Five. What I am not asking

    Nothing beyond the cap decision already asked for in comment 6790994872 and its correction 6791073349. I propose no push, I propose no exclusion of my own here, I request no re-review, and the two standing sentences about what a local preflight does and does not prove on this machine are recorded in the lane handoff ledger and are omitted from this comment rather than quoted. The five commits behind the numbers above are local to this lane, on branch r366-oweledits in one worktree, on no remote, and nothing in this comment changes that.
16. easonLiangWorldedtech commented on Nov 13, 2026

    

    easonLiangWorldedtech

    on Nov 13, 2026

    Last edited by easonLiangWorldedtech

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    The re cut of pull 1917 as a plan, not as arithmetic

    Pull 1917 (U9) is the only head in this campaign whose content can be partitioned under the per package line ceiling without an exclusion. This comment is the plan for that re cut, published before any split pull exists, as this campaign's own rule requires. The arithmetic is the price line of each rung; the plan is the order, the ownership, and what a reviewer can and cannot approve on its own.

    Priced against main at f98fcf7, with the instrument in force everywhere in this campaign, blob 7dfe0006d2d5c7e4d2282f65f68b8ed5f16866bc, ceiling 500 changed executable lines per package. Every figure below is the instrument's own count on a scratch checkout standing on the branch being priced, and each branch is a single child of f98fcf7 so the pull's merge base is that tip.

    The four units, what each owns, and what each pays

    Rung 1 - u9d-safe-write-primitives (published unit 4 of the four I priced on 1989)

    counted file	lines	selector ranges	blob it carries
    src/services/file-safety/safeWriteText.ts	266	83	0ed4a19707255b7a818479a7547e673baaee1b5d
    src/utils/safeWriteJson.ts	113	40	fbe8b07563aa34da0d9f2717e397ce2b009fe3b4

    • Price at f98fcf7: 379 counted lines over 123 selector ranges, headroom 121. The instrument's own pass line on this branch reads: Mutation-testing 1 package(s) from merge base f98fcf7d86534d730de936637c9cb35936461c00: extension (379 lines).
    • Test and support files this unit owns, uncounted by the instrument and listed so nothing is orphaned:
      • src/services/file-safety/tests/safeWriteText.spec.ts :: blob 3035b4552a90 (full id 3035b4552a9092d2b98559bd5c0c5433a2db11d8)
      • src/services/file-safety/tests/safeWriteText.integration.spec.ts :: blob b965765ac946 (full id b965765ac9462c4fb26fe1012eb50bbf6be8be2d)
      • src/utils/tests/safeWriteJson.test.ts :: blob 435ca63b6ae8 (full id 435ca63b6ae8d91d89d9a2cf0538196a707557f6)
      • src/utils/tests/safeWriteJson.interruption.test.ts :: blob 8b5d68c81fd6 (full id 8b5d68c81fd6927507ff86a68f6858a24f6e2df9)
      • src/utils/tests/safeWriteJson.lockKey.spec.ts :: blob 0dc50e1609d6 (full id 0dc50e1609d645d3124041691727da990449c5ad)
      • src/utils/tests/safeWriteJson.postCommitDurability.spec.ts :: blob c9a8cdab315a (full id c9a8cdab315a839adee2ddd5e40c69fe9377f658)
    • Branch: refs/heads/fws/u9d-safe-write-primitives at e77527f, tree 698f1132fba248d871323ae5e9a31f7b7bdf62ba, one parent, f98fcf7.

    Rung 2 - u9a-guarded-write-core (published unit 1 of the four I priced on 1989, carried by pull 1917 itself)

    counted file	lines	selector ranges	blob it carries
    src/core/tools/guardedWrite.ts	401	47	9bede974293e8e01ca8a1d5996f4bb5e8d4b4132
    src/utils/jsonFileRecovery.ts	9	5	ebf27cf7debd90c6331a8b13b6a35c3943ba7b3e
    src/integrations/misc/indentation-reader.ts	4	4	21aa6777b5eab75a1a417e1f4584c115a3b7e07f
    src/core/task/observationRegistry.ts	2	1	1bf6d84110b7bb22d18403350204aa1cbdef3082

    • Price at f98fcf7: 416 counted lines over 57 selector ranges, headroom 84. The instrument's own pass line on this branch reads: Mutation-testing 1 package(s) from merge base f98fcf7d86534d730de936637c9cb35936461c00: extension (416 lines).
    • Test and support files this unit owns, uncounted by the instrument and listed so nothing is orphaned:
      • src/core/tools/tests/guardedWrite.spec.ts :: blob 0781b27f9322 (full id 0781b27f932275542723787d06db3fa3c21255a1)
      • src/integrations/misc/tests/indentation-reader.spec.ts :: blob fa951ea85e4a (full id fa951ea85e4a032a8a5ca429784d559a3d27a37a)
      • src/integrations/misc/tests/indentation-reader-unicode.spec.ts :: blob fe0e095a85fc (full id fe0e095a85fc6d7a73812ff40bc103b38addd994)
      • src/core/task/tests/observationRegistry.spec.ts :: blob f5787071e7ae (full id f5787071e7aeb8dcb51dcf6b8aaf8ed0c1801b76)
      • src/core/task/tests/Task.dispose.test.ts :: blob a463b3b8d19b (full id a463b3b8d19bedfb8e242ec27e7da667ccd46e5d)
    • Branch: refs/heads/fws/u9-task-history-delete at 5dd5882, tree 85ac289b9c396ca58dff1e8af50b17f79c7b21e6, one parent, f98fcf7.

    Rung 3 - u9c-diffview-publish-and-edit-tools (published unit 3 of the four I priced on 1989)

    counted file	lines	selector ranges	blob it carries
    src/integrations/editor/DiffViewProvider.ts	338	79	03b95a15651f1e7328ee582e53c0d20e0e38ee38
    src/core/tools/ApplyPatchTool.ts	92	14	895d9f6b53cddf96212bbf3e6bce84110af545d5
    src/core/tools/EditTool.ts	23	3	cf20fdb26aa82110557c1ccf8e82af97d795b84c
    src/core/tools/SearchReplaceTool.ts	23	3	41b7c8061b7384993704126130bb9071f2725899
    src/core/tools/EditFileTool.ts	16	3	963c6aabff24f511b9e9c6809af7a7fbf5fd52ba

    • Price at f98fcf7: 492 counted lines over 102 selector ranges, headroom 8. The instrument's own pass line on this branch reads: Mutation-testing 1 package(s) from merge base f98fcf7d86534d730de936637c9cb35936461c00: extension (492 lines).
    • Test and support files this unit owns, uncounted by the instrument and listed so nothing is orphaned:
      • src/integrations/editor/tests/DiffViewProvider.spec.ts :: blob 15ea1ce45bf9 (full id 15ea1ce45bf9af6231722f1601a52c8be59b7c81)
      • src/core/tools/tests/applyPatchTool.execute.spec.ts :: blob a11057541044 (full id a110575410449d0aeab4eeff4356404d57c7235b)
      • src/core/tools/tests/editTool.spec.ts :: blob 9326fe3fa3f0 (full id 9326fe3fa3f0bace5b50121fbbdcbfd435840f42)
      • src/core/tools/tests/searchReplaceTool.spec.ts :: blob 433867de23cf (full id 433867de23cfe5b6630119e066d893ff02cdaa67)
      • src/core/tools/tests/editFileTool.spec.ts :: blob 6b7e789ea4be (full id 6b7e789ea4bee7c8d34eb669e36c44d556613e84)
    • Branch: refs/heads/fws/u9c-diffview-publish-and-edit-tools at 3361738, tree b87d1d8de8bd07f60fd2d8a1aadfe87ec49f4e3a, one parent, f98fcf7.

    Rung 4 - u9b-task-history-store-provider-and-read-write-tools (published unit 2 of the four I priced on 1989)

    counted file	lines	selector ranges	blob it carries
    src/core/task-persistence/TaskHistoryStore.ts	338	53	9da30a1b3092007ef6786d2d75aa769cc9a1e9d0
    src/core/webview/ClineProvider.ts	38	10	d3e333610b90246c8586abcac9290cd8e5e9ba79
    src/core/tools/ReadFileTool.ts	35	21	05933e9e0d2f72e1b3c1eb3b01cf8ea1f3442ac5
    src/core/tools/ApplyDiffTool.ts	26	6	e930d501b99e409a2b85cda19503cdb3324e24da
    src/core/tools/WriteToFileTool.ts	26	3	5b0e48cfd96c20bff6920ad567078c94f230d704

    • Price at f98fcf7: 463 counted lines over 93 selector ranges, headroom 37. The instrument's own pass line on this branch reads: Mutation-testing 1 package(s) from merge base f98fcf7d86534d730de936637c9cb35936461c00: extension (463 lines).
    • Test and support files this unit owns, uncounted by the instrument and listed so nothing is orphaned:
      • src/core/task-persistence/index.ts :: blob c3883c553a3d (full id c3883c553a3d806bf91832a4b365a2cc4958be01)
      • src/eslint-suppressions.json :: blob f3714cd1f521 (full id f3714cd1f521c1d34e2dbc252cd7b970d226f6a6)
      • src/core/task-persistence/tests/TaskHistoryStore.deleteSemantics.spec.ts :: blob a512ceff883c (full id a512ceff883c1e84c4e42cc924349a6dfc4fb464)
      • src/core/webview/tests/ClineProvider.taskHistory.spec.ts :: blob 0b8b3ba94ea2 (full id 0b8b3ba94ea2bbc9933c6678f6ff40706e34f024)
      • src/core/webview/tests/ClineProvider.partialTaskDelete.spec.ts :: blob 73b18f45d7fb (full id 73b18f45d7fb566935f034f8a314fb443ea92ca1)
      • src/core/tools/tests/readFileTool.spec.ts :: blob 123cd1e34650 (full id 123cd1e3465084e8126ae76f28517232f7090178)
      • src/core/tools/tests/applyDiffTool.failureReporting.spec.ts :: blob 32566c9a469c (full id 32566c9a469c9f393995bc573aecf60fa9152851)
      • src/core/tools/tests/applyDiffTool.guardedWrite.spec.ts :: blob 503ba6543878 (full id 503ba65438781ffef2d7430645487d5fb41810ba)
      • src/core/tools/tests/applyDiffTool.outsideWorkspace.spec.ts :: blob 0434a1d9bc5a (full id 0434a1d9bc5a27e1791fa450e5772c1a8ba7b948)
      • src/core/tools/tests/writeToFileTool.spec.ts :: blob fb1e9941ce3d (full id fb1e9941ce3db9372113c4a12a341a7f57ade745)
    • Branch: refs/heads/fws/u9b-task-history-provider-and-tools at d41618a, tree f63f7cacf610502671304d52a9bb50460f942f88, one parent, f98fcf7.

    Declared merge order, and why each rung waits for the one before it

    1. Rung 1, rung u9d safe write primitives - waits for nothing in content: nothing inside it imports another unit's new module, and standing on today's main its package typecheck is clean and its suites are clean, measured locally. Corrected 2026-11-13 at 03:53Z against the CI read rather than against those local runs. At its head e77527f every required context reads completed success except one: check-translations 131666359178 (1 annotation), compile 131666359204 (1), e2e-mock 131666358456 (1), platform-unit-test (ubuntu-latest) 131666359358 (1), platform-unit-test (windows-latest) 131666359552 (0). The exception is knip, completed failure, check run 131666359369, 2 annotations, and I bought that payload: item 1 is path .github line 15 level failure with message Process completed with exit code 1. and item 2 is path .github line 1 level notice with message "The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748". The payload names no file and states no cause, so the sentence this bullet used to carry - that this is the only unit a reviewer can approve and land on its own today - is withdrawn. Landing this rung first is still my answer, for the reason in the plain answer below.
    2. Rung 2, u9a guarded write core - waits for rung 1. core/tools/guardedWrite.ts and utils/jsonFileRecovery.ts import services/file-safety/safeWriteText, which rung 1 owns. Measured at its own branch: package typecheck exits 2 with Cannot find module '../../services/file-safety/safeWriteText' and ../services/file-safety/safeWriteText. A reviewer can read it today, its gate cannot go green until rung 1 is in main.
    3. Rung 3, u9c diff view publish, apply patch and the three edit tools - waits for rungs 1 and 2. DiffViewProvider.ts imports core/tools/guardedWrite and services/file-safety/safeWriteText and calls ObservationRegistry.forget, all of which live in rungs 1 and 2; measured Cannot find module './guardedWrite', Cannot find module '../../core/tools/guardedWrite', Property 'forget' does not exist on type 'ObservationRegistry'. Its own saveDirectly and saveChanges signatures are what rung 4's tools call, so it must land before rung 4.
    4. Rung 4, u9b task history store, provider wiring and the read and write tools - waits for rungs 1, 2 and 3. Measured at its own branch: TaskHistoryStore.ts needs isReplacementLeftover exported from jsonFileRecovery (rung 2) and safeWriteText (rung 1); ReadFileTool.ts needs hasClippedLines on IndentationReadResult (rung 2); ApplyDiffTool.ts and WriteToFileTool.ts import guardedWrite (rung 2) and call diffViewProvider.saveDirectly with nine arguments and saveChanges with five, which is rung 3's shape; ClineProvider.ts imports TaskHistoryDeleteError through core/task-persistence/index.ts, the barrel this rung owns.

    Plain answer to the question the plan has to answer, corrected 2026-11-13 at 03:53Z from four check-runs reads and three annotation payloads: no unit of the four is green on its own today. knip reads completed failure with 2 annotations at every head - 131666359369 at 2443, 131665371619 at 1917, 131666371518 at 2444, 131666383191 at 2445 - and its payload names no file: the two items are the generic step line Process completed with exit code 1. beside the runner migration notice, which is the shape this campaign has already documented on other heads, so the knip cause is unread and I assert none. compile reads failure only at the three later heads, and its payload does name the cause verbatim: at head 5dd5882, check run 131665371730, item 2 is path src/utils/jsonFileRecovery.ts, line 8, column 32, level failure, message Cannot find module '../services/file-safety/safeWriteText' or its corresponding type declarations. That file and that line sit inside rung 2's own 9-file delta, and the module it imports is created by rung 1: src/services/file-safety/safeWriteText.ts is absent from today's main tip f98fcf7 and absent from rung 2's own head, present in rung 1's head, and present in the stacked tree b5aace088719466c4be94fcf42b4c501a3eca5be, where the same jsonFileRecovery blob ebf27cf7debd90c6331a8b13b6a35c3943ba7b3e sits next to it. So the shape of the problem is the shape I chose and not a defect in the content: a unit branch carries only its own delta, so a later rung cannot compile until an earlier rung is in main, which is exactly what the declared order 2443, then 1917, then 2444, then 2445 exists to handle. What a reviewer should land first is rung 1 on pull 2443: it is the only head carrying a single failing row among the required names, that row's payload names no file, and once rung 1 is in main the cause quoted above is gone by construction. Whether the other red rows at 1917, 2444 and 2445 clear with it is unread, because I did not buy their annotations; platform-unit-test (windows-latest) reads completed cancelled with 2 annotations at each of those three heads, which I keep as cancellations rather than folding them into failures. No rung waits on more than one landing ahead of it in a circle, which is the point of moving three tool files (see the correction below). A stack where every rung waits on every other would be the same blocker wearing a better hat, and that is what the published packing was.

    Corrections to what I published earlier, stated here rather than left for the reader to find

    • The packing I published on 1989 was cyclic. Comment 6842100325 priced four bins at 478, 463, 430 and 379 counted lines. Building those bins as branches and running the package typecheck on each shows that bin 1 and bin 3 wait on each other: bin 1's EditTool.ts, SearchReplaceTool.ts and EditFileTool.ts call diffViewProvider.saveDirectly with nine arguments and saveChanges with five, which only exist in bin 3's DiffViewProvider.ts (measured error TS2554: Expected 2-5 arguments, but got 9 and Expected 0-2 arguments, but got 5 at three call sites each), while bin 3 imports core/tools/guardedWrite and calls ObservationRegistry.forget, both in bin 1. No merge order satisfies a pair that waits on itself. This plan moves those three tool files - 62 counted lines and 9 selector ranges - from the guarded write bin into the diff view bin, which is why the prices here read 416 and 492 instead of 478 and 430. Both sets of figures stay on the record; nothing is edited out.
    • My earlier arithmetic priced only the counted files. Pull 1917 changes 42 files against today's main, not 16. The 26 others - 24 test files, src/core/task-persistence/index.ts and src/eslint-suppressions.json, +10,186 and -177 raw lines between them - contribute no counted executable lines to the instrument, which I measured rather than assumed, and they are assigned here, each test file to the unit that owns the module under test, so that no unit travels without the tests that prove it.
    • Completeness, measured. The union of the four branches' file sets is exactly the 42 files pull 1917 changes against f98fcf7, and the tree of the four stacked in the declared order is b5aace088719466c4be94fcf42b4c501a3eca5be, which is byte for byte the tree git merge-tree reports for merging pull 1917's head into f98fcf7. Four rungs add up to the pull, not to less than the pull.
    • One file is resolved, not copied. src/utils/jsonFileRecovery.ts was touched by main in the two commits that landed since the head was cut, so each unit carries the merge resolved blob ebf27cf7debd rather than the head blob 8db128ffecd4ffb64b09ffcfb5ee06ba2ca8de5a. Taking the head blob wholesale would have quietly reverted main's newer 26 lines in that file.

    What is measured and what is estimated

    • Measured: every counted line and selector range above, the instrument's own pass line for each branch, the exit codes named below, the branch tips read back over transport rather than through the door, and the merge of each branch against f98fcf7 (all four merge clean, so no unit is born colliding with the ground).
    • Estimated: mutants per unit, from the attribution band this campaign measured at 3.08 to 3.54 mutants per selector range (three pairs on disk: 305 over 97, 326 over 106, 163 over 46). At that band the rungs carry roughly 379 to 435 (rung 1), 176 to 202 (rung 2), 314 to 361 (rung 3) and 286 to 329 (rung 4) mutants against a per package ceiling of 400 that the preflight enforces by throwing. Rung 1 is the rung whose estimate straddles the mutant ceiling: if a run lands above 400 the next step is to cut safeWriteText.ts (266 lines, 83 ranges, 256 to 294 estimated mutants) from safeWriteJson.ts (113 lines, 40 ranges, 123 to 142) as a fifth pull. No mutant run was bought in this leg, so that is an estimate at a named footing and not a result.

    Gates run on each branch, with exit codes, and the controls beside them

    All run from a worktree standing on the branch itself. prettier --check over the files the unit owns: rung 1 exit 0, rung 2 exit 0, rung 3 exit 0, rung 4 exit 0, and the same check over the 33 of those files that exist at today's main is exit 0, so the passes are not vacuous. pnpm --dir src run check-types: rung 1 exit 0, rungs 2, 3 and 4 exit 2 with the missing modules named above, and exit 0 at the plain tip as the control, and exit 0 on each cumulative footing in the declared order (rung 1 alone, then 1+2, then 1+2+3, then all four), which is what makes the order a plan and not a wish. Suites by the package's own groups (test:core, test:misc, test:services): rung 1 misc exit 0 and services exit 1 with the same three files and eleven tests that main itself fails at f98fcf7 (control measured on the plain tip), rungs 2, 3 and 4 exit 1 on their own branches for the missing modules above and exit 0 for core and misc on the cumulative footings. eslint with --prune-suppressions --max-warnings=0 over the unit's files: exit 0 on all four rungs once the registry JSON itself is not handed to eslint as a lint target (rung 4 first read exit 1 only because I passed src/eslint-suppressions.json as a target and eslint warns that the file matches no configuration - my harness, not the content). The suppressed counts for the files each rung owns, read off the registry that rung carries and taken again after the prune, are identical on both sides: rung 1 zero, rung 2 three (core/task/__tests__/Task.dispose.test.ts, @typescript-eslint/no-explicit-any), rung 3 eight (editTool.spec 1, searchReplaceTool.spec 2, editFileTool.spec 5), rung 4 one hundred and twenty two. Rung 4 is the only rung that carries src/eslint-suppressions.json, and for the files it owns that file reads 122 where today's main reads 124 for the same files, so this content takes two suppressed counts away rather than adding any. The registry rewrite the prune produced was reverted after every run, with a clean worktree each time. The root pnpm run check-types cannot be made to finish in this shared box for packages whose node_modules are not installed in this worktree and it fails identically at the plain tip, so it is evidence neither way here and I am not reporting it as passing. Pushes ran with HUSKY=0, so the pre-push typecheck hook was skipped; that is a disclosure, not a pass.

    The ask, and what this plan does not do

    The ask: land the four rungs in the declared order and pull 1917 closes with them, and no exclusion is needed for this content. Pull 1917 is the one head in this campaign that needs no maintainer reviewed narrow exclusion, so for this content the re cut is the only path to a passing gate - unlike the four heads named in comment 6842100325, where no compliant partition exists and the exclusion is the only path.

    This plan opens no question about the five files the exclusion ask is about: DiffViewProvider.ts, ClineProvider.ts and safeWriteText.ts travel at their existing blobs, and nothing in this leg edits them. No mutant was run, nothing was resolved, nothing was renumbered, no label was written, no exclusion was asked for here, and the four branches were pushed with leases read from a remote read in the same program and verified by transport: fws/u9d-safe-write-primitives at e77527f, fws/u9-task-history-delete at 5dd5882, fws/u9c-diffview-publish-and-edit-tools at 3361738, fws/u9b-task-history-provider-and-tools at d41618a.

    Pulls carrying the rungs, opened in the declared merge order after this comment: rung 1 as a new pull on fws/u9d-safe-write-primitives, rung 2 on pull 1917 itself (its title and body are being patched to describe the one unit it now carries), rung 3 as a new pull on fws/u9c-diffview-publish-and-edit-tools, rung 4 as a new pull on fws/u9b-task-history-provider-and-tools. Rung 2's ref is still named fws/u9-task-history-delete because renaming a pull's head ref is a separate write I did not spend here; the title and body say what it now carries.
17. easonLiangWorldedtech commented on Nov 13, 2026

    

    easonLiangWorldedtech

    on Nov 13, 2026

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    More actions

    At 99e4625, the head this lane pushed onto refs/heads/vps2f-1914-u5a, the mutation advisory row concluded failure, and its annotation payload contains no figure at all.

    Each statement below is named by the read it came from. The check runs door, GET repos Zoo-Code-Org Zoo-Code commits 99e4625 check-runs with per page 100, http 200, total_count 18, 18 rows, no next link. The annotations door, GET repos Zoo-Code-Org Zoo-Code check-runs 131681583955 annotations, http 200, 726 bytes, 2 items, no next link.

    The row named mutation-diff, id 131681583955, printed status completed and conclusion failure, started 2026-11-13T04:06:14Z and completed 2026-11-13T04:06:55Z, which is 41 seconds. Its annotation payload contains no figure at all. Searching the body the door returned for 1249, for 500, for 749 and for 400, and searching it also for 1275 and for 875, finds none of them. The payload carries no file name, no selector range, no mutator name and no mutant count.

    Its only failure content is the same generic exit line the replaced head carried. Path .github, start_line 12, end_line 12, annotation_level failure, empty title, message Process completed with exit code 1, 35 bytes, sha256 prefix 527143cc87679147. The row at the replaced head 2c7460d carried the same path, the same line, the same 35 bytes and the same digest, byte for byte. The only other item at the row on this head is a notice at path .github line 1, 159 bytes, sha256 prefix f8ad47234b9fbce6, about the ubuntu-latest runner image migrating to Ubuntu 26 on October 19 2026. Neither item carries raw_details, and annotations never carry standard output.

    The head that did produce a real mutant report, row 131557321579 at commit feeaf07, ran 11 minutes 30 seconds to completion, against those 41 seconds.

    Therefore no author can obtain the hosted figure for any head that dies this way. Every line figure and every range figure quoted in this campaign ceiling asks, the ones on this issue among them, comes from running the committed script scripts/stryker-diff.mjs in a worktree standing on the head, and not from the job.

    What the two possible outcomes mean for the people deciding. A row that dies this way neither passes nor fails the content, because it evaluated nothing, so its red conclusion is not a statement about whether the changed lines are covered and its green conclusion at some other head would not be either. The figure that does need a decision, 1249 counted executable lines against a ceiling of 500 on the edge from base 5f42a91 to head 99e4625, of which one file is 13 lines over on its own, src/core/tools/guardedWrite.ts at 513 counted lines, exists only in that local run, together with the 453 lines at src/services/file-safety/safeWriteText.ts, 132 at src/utils/safeWriteJson.ts, 73 at src/utils/fileLock.ts, 40 at src/core/tools/ReadFileTool.ts, 27 at src/services/mcp/McpHub.ts and 11 at src/integrations/misc/indentation-reader.ts. The 17 tests path files this pull changes price at 0 counted lines.

    a green local preflight over Valid 0, Killed 0, Survived 0 and No coverage 0 with blocking 0 and advisories 2 is not evidence in either direction on this machine.
    the mutation leg is unmeasured, a PASS over an empty digest is not evidence in either direction, and CI at the first pushed unit is the only proof of the gate.

    One ask, and it is the only ask in this comment. Grant or refuse the exclusions on those numbers, 1249 against 500 with guardedWrite.ts 13 over on its own, or fix the job so that the number is printed in what the row returns. The ceiling is enforced in scripts/stryker-diff.mjs, declared at line 11 as MAX_CHANGED_LINES = 500 and applied at line 265, where the script raises the over-cap condition for a package whose changed executable lines exceed it, and the message it would have raised is built at line 267. The tests paths that price at nothing are the segments listed at line 85 and applied at line 206. This lane added no Stryker directive, no suppression entry and no file exclusion, resolved nothing and requested no re-review.
18. daewoongoh

    added a commit that references this issue on Nov 13, 2026

    fix(utils): refuse ambiguous backup recency in jsonFileRecovery (Zoo-…

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    8c80175
19. easonLiangWorldedtech commented on Nov 14, 2026

    

    easonLiangWorldedtech

    on Nov 14, 2026

    ContributorAuthor

    More actions

    Re cut executed on the u9 chain, put on the record here before the writers pull is opened, so the record precedes the pull.

    The re cut is four rungs landing in strict order: writers, guard, publisher, history. Landing order is fixed by imports rather than preference: src/core/tools/guardedWrite.ts lines 27 and 30 import safeWriteText and resolveLockKey from src/services/file-safety/safeWriteText.ts, which is status A at the merge base f98fcf7, and src/utils/jsonFileRecovery.ts line 8 imports resolveLockKey from the same file, so the writer half has to land first. Rung heads and their own-footing charges, each priced with the gate script own functions against the base named, all under the 500 line ceiling: writers d616ec5, 379 counted lines over 2 counted files, its parent is the merge base so its own and cumulative charges coincide at 379; guard plus its three small files 3ca8992, 416 own, 795 cumulative; publisher and edit tools 3ba9177, 492 own, 1287 cumulative; history, provider and applydiff ceddcdd, 463 own, 1750 cumulative. 379 plus 416 plus 492 plus 463 equals 1750, which is the total the tool itself prints in its refusal sentence at the top rung. The top rung tree is byte identical to the campaign head e1bf8fb, so nothing was rewritten on the way down; the history a reviewer read is rewritten, three refs moved by forced update, and the five commits under 1917 collapse into one commit per rung. An independent price of this plan, relayed through the review lane, agrees with every numerator above and holds that the packing that clears every rung is five branches in strict order, that the pairing branch taking the earlier tool content strands 11 counted lines, and that raising the line ceiling does not clear the gate because the mutant limit binds above it.

    Heads and prices are plan prices cut from merge base f98fcf7, not measurements of remote state. The writers pull follows this comment; a running leg on it is not a pass.
20. easonLiangWorldedtech

    added a commit that references this issue on Nov 14, 2026

    feat(core): add ObservationRegistry with completeness scope and close…

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    f2b4d1c