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fix(task-persistence): delete under the canonical lock key (U9, #1375) - #1917
easonLiangWorldedtech wants to merge 86 commits into
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📝 Summary
Merge Risk: 🟡 Moderate · up to
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Security Boundaries |  |
The changed guarded-write path still permits an allowlist bypass. guardedWrite.ts:550-572 resolves and validates a canonical target, then replaceIfVersion and createIfAbsent pass that string to … |
Remove the check-then-resolve gap. Bind validation to the exact filesystem target used for publication. Use directory-handle/no-follow operations or another atomic mechanism that prevents target and ancestor replacement between validation a… |
| Regression Evidence |  |
The prior regression remains unresolved. safeWriteJson.ts:206-210 adds the under-lock confineTo check after resolvePublishTarget runs, but the changed tests only cover pre-lock rejection (`safeW… |
Add a utility-layer safeWriteJson test that starts with an in-scope target, acquires the lock, changes the target or symlink referent outside confineTo, and asserts ConfinedPathEscapeError. Also assert lock release and no temporary fi… |
| Lifecycle Resource Cleanup | |
A changed cancellation path can leak a file watcher. DiffViewProvider.saveChanges() now returns an empty save result at src/integrations/editor/DiffViewProvider.ts:722-728 when teardown starts dur… |
Return and check an explicit completed/cancelled save result in every save caller. Stop before trackFileContext, edit-state updates, success reporting, reset, and queued-message processing when the save did not complete. Add a disposed gu… |
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Check name Status Explanation Persistence Integrity No explicit persistence-integrity failure was introduced. TaskHistoryStore.removeTaskFileawaits lock resolution, lock acquisition, and unlinking, anddeleteManyretains failed IDs, continues the …Linked Issues check The description links approved tracking targets with Closes references for #2024and#1375, plus a reference to chain issue#1991.Out of Scope Changes check The broad diff is explicitly identified as carried predecessor content. The description lists ownership, rationale, merge order, and the focused U9 delta, which aligns the additional files with the st… Description check The description includes linked issues, implementation details, review focus, test procedure, environment details, checklist status, documentation impact, and additional notes. It also reports known l… Title check The title clearly identifies the primary change: task-persistence deletion under the canonical lock key. It is concise and related to the main implementation. Full details: Persistence Integrity
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Explanation
No explicit persistence-integrity failure was introduced.
TaskHistoryStore.removeTaskFileawaits lock resolution, lock acquisition, and unlinking, anddeleteManyretains failed IDs, continues the batch, writes through only after a successful deletion, and reports partial failure.ClineProvider.deleteTaskWithIdawaits cleanup and preserves the batch error.safeWriteJsonawaits staging andsafeWriteText; publication uses atomic rename, flushed staging, backup handling, and explicit post-commit durability reporting. Changed save callers await guarded publication.
Full details: Out of Scope Changes check
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Explanation
The broad diff is explicitly identified as carried predecessor content. The description lists ownership, rationale, merge order, and the focused U9 delta, which aligns the additional files with the stacked-PR workflow.
Full details: Description check
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Explanation
The description includes linked issues, implementation details, review focus, test procedure, environment details, checklist status, documentation impact, and additional notes. It also reports known local test and mutation-diff failures with context.
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Full details: Security Boundaries
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Explanation
The changed guarded-write path still permits an allowlist bypass.
guardedWrite.ts:550-572resolves and validates a canonical target, thenreplaceIfVersionandcreateIfAbsentpass that string tosafeWriteTextat lines 207 and 290.safeWriteText.ts:271-274resolves the path again, and line 530 renames through the current ancestor directories. If an attacker replaces a validated workspace ancestor with a symlink before this second resolution, the publish can write outside the workspace. The same race affects an approved outside-workspace target, despiteapprovedCanonicalTarget.fileLock.ts:18-35locks a pathname and does not pin directory identity.WriteToFileTool.ts:104-156supplies this approved-write path.Resolution
Remove the check-then-resolve gap. Bind validation to the exact filesystem target used for publication. Use directory-handle/no-follow operations or another atomic mechanism that prevents target and ancestor replacement between validation and rename. Apply this protection to ordinary workspace writes and approved outside-workspace writes.
Full details: Regression Evidence
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Explanation
The prior regression remains unresolved.
safeWriteJson.ts:206-210adds the under-lockconfineTocheck afterresolvePublishTargetruns, but the changed tests only cover pre-lock rejection (safeWriteJson.test.ts:667-751), a symlink escape before locking (:753-780), and lock-key resolution failure with release (safeWriteJson.lockKey.spec.ts:118-152). No test changes the target or symlink referent after lock acquisition and verifiesConfinedPathEscapeErrorfrom the under-lock branch.Resolution
Add a utility-layer
safeWriteJsontest that starts with an in-scope target, acquires the lock, changes the target or symlink referent outsideconfineTo, and assertsConfinedPathEscapeError. Also assert lock release and no temporary file, backup, rename, or outside write. Keep the existing pre-lock and resolution-failure tests.
Full details: Lifecycle Resource Cleanup
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Explanation
A changed cancellation path can leak a file watcher.
DiffViewProvider.saveChanges()now returns an empty save result atsrc/integrations/editor/DiffViewProvider.ts:722-728when teardown starts duringguardedWrite. The changed callers do not inspect this result; for example,EditTool.ts:238-249immediately callstrackFileContext, and the same pattern remains inWriteToFileTool.ts:189-202,EditFileTool.ts:464-475,SearchReplaceTool.ts:234-245,ApplyDiffTool.ts:273-284, andApplyPatchTool.ts:271-281/577-586. IfTask.disposeOnce()disposesfileContextTrackeratTask.ts:3597-3600and startsrevertChanges()atTask.ts:3603-3607while the publish is pending,saveChanges()returns the cancellation result, then the caller invokestrackFileContext.FileContextTracker.trackFileContext()andsetupFileWatcher()have no disposed guard (FileContextTracker.ts:48-95), so a new watcher is created after disposal and is not cleaned up. The callers can also continue with post-save state and queued-message work after cancellation.Resolution
Return and check an explicit completed/cancelled save result in every save caller. Stop before
trackFileContext, edit-state updates, success reporting, reset, and queued-message processing when the save did not complete. Add a disposed guard toFileContextTracker.trackFileContext()andsetupFileWatcher()so disposal is final. Add a race test that disposes the task whileguardedWriteis pending and verifies that no watcher or post-save work is created.
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Inline comments:
Review comments at @src/core/task/Task.ts:
- Around line 4696-4698: Update the pause handling around
`recursivelyMakeClineRequests` and `initiateTaskLoop` so a task with `isPaused`
set does not schedule another API request, including when `userMessageContent`
is empty and the stack empties. Do not rely only on removing `|| this.isPaused`;
ensure both loops preserve the paused state rather than falling through to the
`formatResponse.noToolsUsed()` retry.
Review comments at @src/core/tools/ApplyPatchTool.ts:
- Around line 109-114: Update the observation handling in the ApplyPatchTool
flow so its internal read never grants full-file authority: set completeness to
true only when a prior observation is complete and its version matches
preReadToken; otherwise record it as false. Keep targeted edit writes allowed,
and update the no-prior-observation test to expect a partial observation and
reject a subsequent full-file write.
Review comments at @src/services/file-safety/__tests__/safeWriteText.spec.ts:
- Line 1052: Update the test assertion around `fs.rmdir` to verify it was called
with the staging directory created by `fsSync.mkdirSync`, rather than accepting
any call; use the directory from the first `mkdirSync` call as the expected
argument.
Review comments at @src/services/file-safety/safeWriteText.ts:
- Around line 421-429: In the safeWriteText flow, track whether the
tempPath-to-targetPath rename committed; after that point, prevent the outer
catch from restoring backupPath over the new content. On
PostCommitDurabilityError, release the backup when applicable, and add a
backup-enabled regression test confirming a failed directory fsync does not
trigger the rollback rename.
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📒 Files selected for processing (31)
src/core/task-persistence/TaskHistoryStore.tssrc/core/task-persistence/__tests__/TaskHistoryStore.deleteSemantics.spec.tssrc/core/task/Task.tssrc/core/task/__tests__/observationRegistry.spec.tssrc/core/task/observationRegistry.tssrc/core/tools/ApplyDiffTool.tssrc/core/tools/ApplyPatchTool.tssrc/core/tools/EditFileTool.tssrc/core/tools/EditTool.tssrc/core/tools/ReadFileTool.tssrc/core/tools/SearchReplaceTool.tssrc/core/tools/WriteToFileTool.tssrc/core/tools/__tests__/applyDiffTool.guardedWrite.spec.tssrc/core/tools/__tests__/applyPatchTool.execute.spec.tssrc/core/tools/__tests__/editFileTool.spec.tssrc/core/tools/__tests__/editTool.spec.tssrc/core/tools/__tests__/guardedWrite.spec.tssrc/core/tools/__tests__/readFileTool.spec.tssrc/core/tools/__tests__/searchReplaceTool.spec.tssrc/core/tools/__tests__/writeToFileTool.spec.tssrc/core/tools/guardedWrite.tssrc/eslint-suppressions.jsonsrc/integrations/editor/DiffViewProvider.tssrc/integrations/editor/__tests__/DiffViewProvider.spec.tssrc/integrations/misc/__tests__/indentation-reader.spec.tssrc/integrations/misc/indentation-reader.tssrc/services/file-safety/__tests__/safeWriteText.spec.tssrc/services/file-safety/safeWriteText.tssrc/utils/__tests__/safeWriteJson.lockKey.spec.tssrc/utils/__tests__/safeWriteJson.test.tssrc/utils/safeWriteJson.ts
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GitHub Actions: Changed-code mutation testing / 0_mutation-diff.txt: fix(task-persistence): delete under the canonical lock key (U9, #1375)
Conclusion: failure
##[group]Run BASE_SHA="$(git rev-parse "$HEAD_SHA^1")"
�[36;1mBASE_SHA="$(git rev-parse "$HEAD_SHA^1")"�[0m
�[36;1mnode scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"�[0m
shell: /usr/bin/bash -e {0}
env:
PNPM_HOME: /home/runner/setup-pnpm/node_modules/.bin
STORE_PATH: /home/runner/setup-pnpm/node_modules/.bin/store/v10
HEAD_SHA: 51aae62dd828b16982ec5d5e50394db3025088db
##[endgroup]
Mutation gate failed: extension has 827 changed executable lines (limit 500). Split the PR or obtain a maintainer-reviewed narrow exclusion.
##[error]Process completed with exit code 1.
GitHub Actions: Changed-code mutation testing / mutation-diff: fix(task-persistence): delete under the canonical lock key (U9, #1375)
Conclusion: failure
##[group]Run BASE_SHA="$(git rev-parse "$HEAD_SHA^1")"
�[36;1mBASE_SHA="$(git rev-parse "$HEAD_SHA^1")"�[0m
�[36;1mnode scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"�[0m
shell: /usr/bin/bash -e {0}
env:
PNPM_HOME: /home/runner/setup-pnpm/node_modules/.bin
STORE_PATH: /home/runner/setup-pnpm/node_modules/.bin/store/v10
HEAD_SHA: 51aae62dd828b16982ec5d5e50394db3025088db
##[endgroup]
Mutation gate failed: extension has 827 changed executable lines (limit 500). Split the PR or obtain a maintainer-reviewed narrow exclusion.
##[error]Process completed with exit code 1.
🧰 Additional context used
📓 Path-based instructions (6)
Check persistence and lifecycle invariants: awaited atomic writes, rollback or explicit partial-failure behavior, cross-window state consistency, stale listeners/watchers, cancellation, idempotency, and safe restart/resume without lost or d...
⚙️ CodeRabbit configuration file
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Treat model, provider, MCP, path, command, and tool data as untrusted.
⚙️ CodeRabbit configuration file
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Require regression coverage at the lowest valid harness with behavior-focused assertions, including relevant negative, error, false/unset, and boundary cases.
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Verify extension/webview contracts, cancellation and error propagation, VS Code lifecycle correctness, and behavior under retries and partial failure.
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🪛 ast-grep (0.45.3)
src/core/tools/ApplyPatchTool.ts
[warning] 99-99: Filesystem path is not a string literal; a request-/variable-derived path can enable path traversal. Validate and normalize the path before use.
Context: fs.readFile(absolutePath, "utf8")
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
(detect-non-literal-fs-filename-typescript)
src/utils/safeWriteJson.ts
[warning] 97-97: Filesystem path is not a string literal; a request-/variable-derived path can enable path traversal. Validate and normalize the path before use.
Context: fs.readFile(resolvedTargetPath, "utf8")
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
(detect-non-literal-fs-filename-typescript)
src/utils/__tests__/safeWriteJson.lockKey.spec.ts
[warning] 102-102: Filesystem path is not a string literal; a request-/variable-derived path can enable path traversal. Validate and normalize the path before use.
Context: fs.readFile(referent, "utf8")
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
(detect-non-literal-fs-filename-typescript)
src/services/file-safety/__tests__/safeWriteText.spec.ts
[warning] 2-2: Importing child_process exposes a command-execution surface; ensure any command/argument built from input is validated, and prefer execFile/spawn with an argument array over exec.
Context: import { execFile } from "child_process"
Note: [CWE-78] Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
(detect-child-process-typescript)
[warning] 3-3: Importing child_process exposes a command-execution surface; ensure any command/argument built from input is validated, and prefer execFile/spawn with an argument array over exec.
Context: import type { ChildProcess } from "child_process"
Note: [CWE-78] Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
(detect-child-process-typescript)
src/integrations/editor/DiffViewProvider.ts
[warning] 141-141: Filesystem path is not a string literal; a request-/variable-derived path can enable path traversal. Validate and normalize the path before use.
Context: fs.readFile(absolutePath, "utf-8")
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
(detect-non-literal-fs-filename-typescript)
[warning] 191-191: Filesystem path is not a string literal; a request-/variable-derived path can enable path traversal. Validate and normalize the path before use.
Context: fs.readFile(absolutePath, "utf-8")
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
(detect-non-literal-fs-filename-typescript)
src/services/file-safety/safeWriteText.ts
[warning] 3-3: Importing child_process exposes a command-execution surface; ensure any command/argument built from input is validated, and prefer execFile/spawn with an argument array over exec.
Context: import { execFile } from "child_process"
Note: [CWE-78] Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
(detect-child-process-typescript)
🪛 ESLint
src/utils/safeWriteJson.ts
[error] 66-66: Unexpected any. Specify a different type.
(@typescript-eslint/no-explicit-any)
src/utils/__tests__/safeWriteJson.test.ts
[error] 325-325: Unexpected any. Specify a different type.
(@typescript-eslint/no-explicit-any)
🔇 Additional comments (16)
src/core/task-persistence/TaskHistoryStore.ts (1)
12-12: LGTM!Also applies to: 284-287, 315-317, 332-340, 393-395
src/core/task-persistence/__tests__/TaskHistoryStore.deleteSemantics.spec.ts (1)
55-61: LGTM!Also applies to: 81-81, 108-116, 187-253, 255-428, 495-518
src/utils/__tests__/safeWriteJson.lockKey.spec.ts (1)
1-183: LGTM!src/utils/__tests__/safeWriteJson.test.ts (1)
7-8: LGTM!Also applies to: 317-341, 443-445, 460-487, 565-704
src/utils/safeWriteJson.ts (1)
7-12: LGTM!Also applies to: 41-41, 59-98, 109-175
src/core/task/observationRegistry.ts (1)
1-59: LGTM!src/core/task/__tests__/observationRegistry.spec.ts (1)
1-108: LGTM!src/core/tools/ReadFileTool.ts (1)
218-247: LGTM!src/integrations/misc/indentation-reader.ts (1)
454-477: LGTM!src/eslint-suppressions.json (1)
979-979: LGTM!Also applies to: 1719-1719
src/core/tools/guardedWrite.ts (1)
307-411: LGTM!src/core/tools/ApplyDiffTool.ts (1)
176-186: LGTM!Also applies to: 226-226
src/core/tools/EditFileTool.ts (1)
439-452: LGTM!src/core/tools/EditTool.ts (1)
214-226: LGTM!src/core/tools/SearchReplaceTool.ts (1)
210-222: LGTM!src/core/tools/WriteToFileTool.ts (1)
136-145: LGTM!
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Confirmed — this is the same defect as the other three fsync threads, not four separate ones. The rollback in the catch ran whenever backup mode had renamed target -> backup, including when the failure happened after the commit rename had already published. Fixed in the unit that owns the publish path, #1910, commit Regression test at the lowest layer that would have failed (commit rename succeeds, post-commit directory open fails, backup mode on): fails without the guard, passes with it. This unit carries the same copy of Resolving as handled. |
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Not applicable at this head. Line 109 already reads |
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Not applicable at this head. This unit does not remove |
…c retained CodeRabbit thread 4226780789 (Minor) on PR Zoo-Code-Org#1917. safeWriteText now keeps the previous-content copy when the post-commit parent-directory fsync fails, and reports its location through PostCommitDurabilityError.backupPath, so the caller owns that file. safeWriteJson always passes backup:true but never handled the error: the generic catch logged "Operation failed" and rethrew, leaving a hidden .safeWriteText.bak_* copy beside the target for every affected write, and telling callers such as TaskHistoryStore that a write had failed when the new JSON was already committed at the target. Catch PostCommitDurabilityError around the safeWriteText call: release the reported backup best-effort, log the durability caveat, and return, because the content really is at the target. Every other error keeps the existing failure path. Test: new utils/__tests__/safeWriteJson.postCommitDurability.spec.ts drives a parent-directory open failure through safeWriteJson against a real temp directory, and asserts the caller's result, that the failure actually fired, and that no backup or staging residue is left; a second test pins that a pre-commit failure still rejects. Negative controls: dropping the backup release turns the first test red, and swallowing every error turns the second red (1 failed | 1 passed each).
… a teardown it does not own Port of `0974ad534` (U8, Zoo-Code-Org#1916) to U9. Same defect, open on four units at their current heads - Zoo-Code-Org#1915 (U6), Zoo-Code-Org#1916 (U8), Zoo-Code-Org#1917 (U9, this PR), Zoo-Code-Org#1918 (U7) - and DiffViewProvider.ts already carries four distinct blobs across those heads (82b5857 / 44049b5 / 854569b / 15f032a). Authored once in the unit that owns the save-gate teardown and ported in the declared merge order U1 U2 U3 U4 U5 U8 U6 U7 U9, so the blob table on #41 traces every copy back to `0974ad534`. Task.disposeOnce() can reach revertChanges() while saveChanges() owns its post-publish teardown. runTeardown() made the caller a waiter and returned false, revertChanges() then skipped its finalization, and the save's own pass closes the views and restores the tabs but never resets - the tool caller that owns the provider lifecycle may never come back after a disposal. The provider was left with isEditing true and activeDiffEditor retained. - runTeardown() records that a cancellation is waiting on the pass that owns the session. - saveChanges() reports no completed save when a cancellation landed during its post-publish pass, instead of running diagnostics and the EOL/patch tail against provider state (newContent, relPath) that the finalization clears. - revertChanges() closes the session after the owning pass returned, when that pass did not. Port adaptations for this unit (this branch's runTeardown takes a second `finalize` argument, which U8's does not): - The finalization decision is a recorded flag, `teardownPassResets`, set inside revertChanges()'s own finalize step and cleared when a pass starts - not U8's `isEditing || activeDiffEditor` state check. On this branch the rejected save's discard pass also passes a finalize (it restores the preview tabs but does not reset), so "has a finalize step" is not the same question as "closes the session", and a state check would let a waiter reset a session the owner had already closed. - No `ownedTeardown` result check exists in this unit's saveChanges(), so the source commit's `!ownedTeardown` block was not ported; only the cancellation bail-out was added there. Verification on this unit: red first with the production hunks absent and the tests ported -> 4 failed | 142 passed. Green -> 146 passed. Negative control: removing the waiter finalization -> 4 failed | 142 passed, production file restored byte-exactly, post-restore run 146 passed. tsc --noEmit 50 errors, identical to this branch's baseline and 0 in the touched files; eslint --max-warnings=0 clean on both files; src/eslint-suppressions.json untouched. (cherry picked from commit 0974ad5)
…ed, not as a completed deletion Pre-merge row (Persistence Integrity, error) on this PR: `removeTaskFile` wrapped three different operations in one `try` and read any ENOENT out of it as "the file is gone". The lock-key resolution, the lock acquisition and the unlink all report ENOENT for different things, so a failure that left the file on disk evicted the cache entry and wrote the store through - the next reconciliation then contradicted the deletion the caller was told about. - The three stages are separated. A lock key that cannot be computed, and a lock that cannot be taken, are reported with a reason naming the stage; only the unlink's own result can prove the file is gone. - The unlink's outcome is captured inside the locked operation, because `withFileLock` rethrows the operation's error unchanged: a lock failure and an unlink failure otherwise arrive at the same place and cannot be told apart by their error code. - A lock that could not be taken at all is settled by asking the named path directly (lstat, which does not follow a symlink). proper-lockfile creates `<key>.lock` with mkdir, and that reports ENOENT both when the directory that would hold the file is gone - nothing to delete - and when the key is an alias whose referent is missing while the named file is still right there. The lock's errno says nothing about the file, so it cannot be the evidence. - The cache entry and the write-through are preserved on every failure, and `deleteMany` still attempts the rest of the batch. Tests: two new cases - a lock key that cannot be resolved (a propagated, non-ENOENT realpath failure: `canonicalDirKey` walks up to the nearest existing ancestor for a missing directory, so "not there" is a key it can still compute) and an ENOENT from lock acquisition. Both assert the item stays in the cache, no write-through happens, and the reported reason names the stage. Red first: 2 failed | 15 passed. Green: 17 passed in the spec, 195 across `core/task-persistence`. Negative controls, one-to-one: treating a resolution failure as deleted -> exactly the resolution test fails; tolerating a lock-stage ENOENT -> exactly the lock test fails; removing the lstat evidence step -> the two pre-existing "missing file is a completed deletion" cases fail, which is what keeps the idempotent path honest; the whole method back to the original single-catch shape -> exactly the two new tests fail. Mutants restored byte-exactly and re-run at 17 passed. `tsc --noEmit` stays at this unit's 50-error baseline with no error in either touched file; eslint `--max-warnings=0` clean on both; `src/eslint-suppressions.json` untouched.
Two artifacts of merging org main a101c61, both of the kind that only exist in the merged tree: 1. src/core/tools/__tests__/readFileTool.spec.ts carried the same import twice - "import type { Task } from "../../task/Task"" at line 21 and again at line 26, one from each side of the merge. oxc reports it as [PARSE_ERROR] Identifier 'Task' has already been declared, which kills the whole file before a single test runs: vitest then says "Tests no tests" and CI's unit-test job is red with no failing test to point at. The second occurrence is removed; the first, in the type-import block, is the one the file's own ordering keeps. 2. This branch carries the hasClippedLines field (5 uses in src/integrations/misc/indentation-reader.ts) and main added src/integrations/misc/__tests__/indentation-reader-unicode.spec.ts, which pins the whole reader result with toEqual - a second-class merge conflict git cannot see. The spec's expectations learn the field, matching production: true for the two clipped-line cases, false for empty input and for both reader-error results. The spec's intent is untouched. Contract change to an existing test, stated explicitly: it pinned the pre-merge shape. numstat 6/0. The negative control was measured on the U6 branch (forcing the production flag to false turns exactly the two clipped-line tests red). src/eslint-suppressions.json is re-pruned after the merge, as both sides' violation counts move: the only real change is core/tools/__tests__/readFileTool.spec.ts @typescript-eslint/no-explicit-any 96 -> 94 (a decrease, from the duplicate import removal and main's own edits to that file); the rest of the 1731/1731 numstat is the file's own re-serialization. Verified by comparing the parsed files leaf by leaf: one changed leaf, zero increases. eslint . --ext=ts --max-warnings=0 is exit 0 on the merged tree after this (it exits 2 with the stale counts, in both directions).
…helpers, dead code and test hygiene Six of the seven open threads on this PR, each with the disposition the code justified rather than the row text assumed: 1. safeWriteJson reused a private copy of the errno-code test (_scopeErrorCode) and a third inline copy of the same check (isAbsent). errorCode is now exported from safeWriteText and used for both, so the question of whether an error is ENOENT has one answer in the tree. _resolveScopeRoot is deliberately NOT folded into canonicalDirKey: canonicalDirKey canonicalizes the PARENT of a file and re-joins its name, while the scope root is a directory canonicalized as itself, and at the filesystem root it falls back to the lexical spelling rather than throwing. Folding one into the other would change which spelling decides a scope. 2. ApplyPatchTool's move path computed moveCanonicalTarget only when the destination was outside every workspace root, and returned early on that same condition a few lines later. The value was therefore always undefined at the publish, and the second isPathOutsideWorkspace call at the publish was always false. Checked before deleting, because dead code and a missed wiring need different treatment: the early return is a deliberate policy (a move outside the workspace is refused with a tool error), so the capture was dead, not missing. It was also not harmless - canonicalizeForApproval can throw, so a destination whose name could not be resolved surfaced an exception where the user should have got the tool error. The capture is gone, the publish passes false and undefined, and the comment states the guarantee the code now relies on. 3. safeWriteJson.test.ts carried two tests whose titles duplicated earlier ones and whose scenarios were the same ordering checks written without symlinks - the comment claimed they existed to run on every lane, but the earlier pair is not symlink-based either (the symlink case is a separate test.skipIf on win32). Both duplicates removed. Note the it( count for this file goes DOWN by two: this is a duplicate removal, not lost coverage - the surviving pair asserts the same ordering, and the row asked for it. 4. TaskHistoryStore.deleteSemantics used mockRejectedValue where one rejection was meant; mockClear does not reset implementations, so the rejection outlived the test and later tests were decided by it. Now mockRejectedValueOnce. 5. writeToFileTool.spec restored the realpath and outside-workspace doubles after the assertions, so a failing assertion left realpath rejecting and every later test in the file failed for the wrong reason. Both restores moved into a finally, matching the test above it. 6. safeWriteText.integration.spec was titled for the commit rename but passed backup:true, so the run stopped one step earlier at the backup copy hitting the same EISDIR and the commit rename never ran. The backup flag is gone: the failure now happens where the title says it happens. Measured: 95 passed, 9 skipped across the six affected specs (safeWriteJson, safeWriteJson.lockKey, applyPatchTool.execute, writeToFileTool, TaskHistoryStore.deleteSemantics, safeWriteText.integration). tsc --noEmit with a local paths override: 0 errors. eslint . --ext=ts --max-warnings=0 exit 0, no suppression-count change. Coverage gap recorded rather than papered over: no test in this repo drives a move whose destination is outside every workspace root, so the failure path this change removes is verified by reading the control flow (the early return on the same condition, and the throw the capture could raise before the tool error), not by a test. A move-path test is worth its own row.
The compile job's Check formatting step runs 'prettier --check .' and lists 17 files on this PR's merge ref (job 114119333176, log read with the ANSI codes stripped - the [warn] lines are the file list, and 'Code style issues found in 17 files' is the count). Every one of them is inside this PR's own diff, so formatting them stays inside the boundary of what this PR may touch. The previous formatting commit covered only eslint-suppressions.json because the log excerpt that was passed along named that one file; the gate checks the full list, not the excerpt. Formatting only, and verified as such rather than asserted: prettier --check now passes on all 17; tsc --noEmit with the local paths override reports 0 errors; eslint . --ext=ts --max-warnings=0 exits 0; eslint-suppressions.json is untouched. Five tests fail in this worktree (DiffViewProvider saveChanges default write delay x2, ClineProvider blanket auto-deny x3). They were classified rather than waved at: the same two spec files were run with the formatting stashed and unstashed, and the failure set is identical before and after - same five names, same counts (5 failed / 347 passed both ways). The unit-test jobs are green at this head on CI, so these are local artifacts (the write-delay pair is the known DEFAULT_WRITE_DELAY_MS junction difference), not something this commit introduced or hides.
…n give _verdictAfterLockFailure exists because an ENOENT from proper-lockfile is a report about the lock, not about the task file: mkdir reports ENOENT both when the directory that would hold the lock is gone and when the key is an alias whose referent is missing. So the named path is asked directly, and that question has three answers. Only one of them had a test. The absent case was already reached by an existing case, and now has one that arrives through the lock failure itself: the file is removed for real, the lock rejects with ENOENT, and the item is evicted and written through without it. The uncheckable case had nothing: with the check reporting EACCES, the item has to stay and the report has to carry both facts - which lock failed, and that the file could not be checked to settle it - with the check's own error as the cause. Reporting only the lock would read as a plain lock timeout and send the next operator after a peer that never existed. The third answer, the file is there, was already pinned. Negative controls, one per branch, measured in this harness against the production line: - make the ENOENT answer stop settling anything: 2 failed (the new case, and the pre-existing case that shares the branch). - report only the lock failure: 1 failed, exactly the new uncheckable case. - that second control run against the spec as it stood before this commit reddens nothing in 17 tests, which is the evidence that the branch really was uncovered rather than covered elsewhere. Baseline: 19 passed, up from 17; tsc unchanged at this branch's 124 error lines with 0 in the touched file; eslint --max-warnings=0 clean; src/eslint-suppressions.json untouched.
Zoo-Code-Org#2038 turned @typescript-eslint/no-unused-vars back on in src and Zoo-Code-Org#799 added pnpm format:check to Code QA. Replaying this unit onto that main exposed unused bindings left by main's dead-code removal (ReadFileTool / SafeWriteTextOptions / lockfile imports, four write-path destructurings no assertion reads, an unused realpath callback parameter), a duplicate Task import, and the path import main pruned from DiffViewProvider.spec that this unit's tests still need. Formatting brought to prettier-canonical under the repo config. Conflict notes: the file-safety rollback commits (committed guard, RollbackFailureError message) were replayed onto main's untouched file-safety core; Task.ts kept main's runState/runRejections fields while applying this unit's isPaused removal; eslint-suppressions.json took main's pruned baseline and the unit's earned reductions. No behavior change: 21 unit specs 709 passed / 9 skipped, eslint clean, prettier clean, tsc adds nothing beyond the pre-existing local donor-package drift.
…path
AGENTS.md bans suppression comments in source and the mutation gate
fails any PR that introduces them. The two directives here were
equivalence claims, not fixes; the equivalence now lives in the PR
description:
- the writeKind default StringLiteral ("update" -> "") is not in the
changed-line selector for this unit's delta, and an empty kind
dispatches exactly like "update" inside guardedWrite (only "edit" and
"create" branch distinctly);
- the saveTask operand of the adoption-probe guard is provably non-null
whenever evaluated (guardedWrite is reached only after the !saveTask
check above has thrown), so dropping the operand cannot change which
branch is taken.
Comment-only change: no behavior delta.
Security Boundaries (port of the same fix landed on the tool-wiring unit, whose guardedWrite this unit carries unchanged): verifyTarget checked containment against the CANONICAL target, then guardedWrite handed the caller's alias to safeWriteText, which resolves it again before renaming - a symlink swapped in after the check moved the bytes to a file the containment decision never covered. verifyTarget now resolves the path ONCE, checks containment (or the approved identity) against that resolution, and RETURNS it; createIfAbsent and replaceIfVersion bind the existence check, the version comparison, the publish and the post-publish token read to the returned canonical target, so the alias is never resolved again after the decision. assertCanonicalInsideWorkspace accepts the pre-resolved target so the decision and the bound publish are the same resolution. Regression tests pin the canonical publish and the bound version comparison; NC: publishing to the alias reddens exactly the canonical tests. Also names the write kind explicitly in WriteToFileTool's approval path (same carried code) instead of relying on the saveChanges parameter default, pinned by the full-workflow test. 66/66 guardedWrite.spec, 24 passed/5 skipped writeToFileTool.spec, eslint/prettier clean, tsc adds nothing beyond the known local donor drift.
main's tool-call scoping (Zoo-Code-Org#2015) made ToolCallbacks.toolCallId required; the unit's own spec callbacks name it with the repo's test convention so check-types passes on the merge ref with either BaseTool shape.
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Actionable comments posted: 1
- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/core/tools/guardedWrite.ts:
- Around line 408-425: Update realpathNearest() to lstat the lexical leaf after
realpath reports ENOENT and reject it if it is a symbolic link; preserve the
existing ancestor handling for genuinely missing paths and convert other lstat
failures to GuardRejectedError. Add a regression test confirming this
dangling-leaf case rejects the write before safeWriteText() is called.
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📒 Files selected for processing: 6
src/core/tools/WriteToFileTool.tssrc/core/tools/__tests__/applyDiffTool.guardedWrite.spec.tssrc/core/tools/__tests__/applyPatchTool.execute.spec.tssrc/core/tools/__tests__/guardedWrite.spec.tssrc/core/tools/__tests__/writeToFileTool.spec.tssrc/core/tools/guardedWrite.ts
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GitHub Actions: Changed-code mutation testing / 0_mutation-diff.txt: fix(task-persistence): delete under the canonical lock key (U9, #1375)
Conclusion: failure
##[group]Run BASE_SHA="$(git rev-parse "$HEAD_SHA^1")"
�[36;1mBASE_SHA="$(git rev-parse "$HEAD_SHA^1")"�[0m
�[36;1mnode scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"�[0m
shell: /usr/bin/bash -e {0}
env:
PNPM_HOME: /home/runner/setup-pnpm/node_modules/.bin
STORE_PATH: /home/runner/setup-pnpm/node_modules/.bin/store/v10
HEAD_SHA: baa423d827e899cdd8c977f06370d8004921d3e0
##[endgroup]
Mutation gate failed: extension has 1422 changed executable lines (limit 500). Split the PR or obtain a maintainer-reviewed narrow exclusion.
##[error]Process completed with exit code 1.
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🔇 Additional comments: 5
src/core/tools/WriteToFileTool.ts: 1
189-198: LGTM!src/core/tools/__tests__/applyDiffTool.guardedWrite.spec.ts: 1
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131-131: LGTM!Also applies to: 145-766
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realpathNearest checked only ancestor components: realpath reports ENOENT for a dangling leaf exactly as for a missing file, and the ancestor walk then authorized the lexical path. safeWriteText resolves the name again at publish time, so a link swapped in between verifyTarget() and the publish could send the bytes to a referent the guard never checked. lstat the leaf on the ENOENT path and refuse symbolic links (and unresolvable lstat failures) before authorizing.
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Disposition update for the 05:51Z walkthrough row (comment 5994218600, head The Security Boundaries ERROR row ("the changed guarded-write path still permits an allowlist bypass — No code change this round; heads unchanged ( |
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Disposition update for the 08:21Z walkthrough rows (comment 5994218600, head Security Boundaries (check-then-resolve allowlist bypass) - the row verbatim-repeats the registered check-then-resolve family: Regression Evidence (under-lock No code change this round; heads unchanged ( |
Security Boundaries — disposition and sequencing (transparency note)The blocked finding on this PR belongs to a family of check-to-rename TOCTOU issues: a target is validated by path, then The series already carries the reference mitigation in #1914 ( Residual-window ownership is already registered: #2148 (fd-relative publication, opened from #1914's checklist), #1414 (cross-process window), #1408 comment 6106959976 (registration rule) and tracking #1991. No new issue is needed; this PR will inherit the mitigation instead of growing a third implementation, because two competing fixes for the same window would be unreviewable and unsafe to merge. Verification on the rebase will be: This PR's action: declared merge order puts this branch last, so it inherits the pinning on rebase. Note that its |
Security Boundaries — disposition with cross-PR evidence (sequencing, not a duplicate fix)This PR's blocked finding is the same check-to-rename TOCTOU family as #1912/#1913/#1914: the target is validated by path, Verified facts (from the triage of this series):
Declared merge order puts this branch last, so the plan is: rebase after #1914/#1912 land, then prove the reconciliation instead of assuming it. Rebase verification (will be checked in this PR before requesting re-review):
I am not duplicating the mitigation here: two competing fixes for the same window would be unreviewable and unsafe to merge. |
This PR makes the task-history delete path obey the same lock discipline as every writer:
deleteMany()resolves each task id's file through the canonical lock key - so a symlink alias and its referent cannot delete and write in parallel - takes the per-path file lock before unlinking, and reports per-id failures honestly: failed ids stay in the cache and the store never reports a deletion it did not perform.This is the last writer in the chain to join the lock discipline. It is the ninth of nine PRs for epic #1375 (chain tracked on #1991), so merging it completes the series.
Related GitHub Issue
Closes: #2024 (this unit's tracking issue).
Closes: #1375 (epic - the last unit of the chain; the epic closes when this lands).
Refs: #1991 (chain tracking).
Description
What this PR changes:
TaskHistoryStore.deleteMany()resolves each id's file through the canonical key every other writer uses and takes the per-path file lock before unlinking.guardedWrite(approvedCanonicalTarget, captured before the approval - the guard only compares against it, never against a lookup done at publish time), the workspace-root resolution fix (an unresolvable root is dropped from the allow-list instead of vetoing every write), and failed-batch assertions rewritten to state the contract instead of comparing a live map with itself.Why the diff looks bigger than the change - per carried file, and why this unit requires it: the chain is non-cumulative: this branch is based on
main, where none of the predecessors have landed yet, and the unit's own tests (the newTaskHistoryStore.deleteSemantics.spec.tsand theClineProviderdelete specs) compile and run against the wholesrctree. Every carried file below is byte-identical to the owning unit's head content, is required for this branch to compile and for its own tests to execute, and disappears from this PR's diff when the predecessor merges (merge order: U1 -> U2 -> U3 -> U4 -> U5 -> U8 -> U6 -> U7 -> U9, all predecessors of this unit):TaskHistoryStore.ts, its new spec,task-persistence/index.ts,ClineProvider.ts+ the two ClineProvider specsguardedWrite.ts+guardedWrite.spec.ts, the tool-wiring files (ApplyDiffTool,ApplyPatchTool,EditFileTool,EditTool,SearchReplaceTool,WriteToFileTool+ specs)deleteManylocks through the same canonical keyguardedWritetakes - the unit's contract is stated against that guard's semantics, and the tree does not compile without it onmain.observationRegistry.ts+ spec,ReadFileTool+ spec,Task.ts+ dispose testDiffViewProvider.ts+ spec,indentation-reader+ specssafeWriteText.ts+ specssafeWriteJson.ts+ specseslint-suppressions.jsonThis unit's own delta is 308 a+d / 23 changed executable lines, all in
TaskHistoryStore.tsand its spec.Review focus:
src/core/task-persistence/TaskHistoryStore.ts(deleteMany) andsrc/core/task-persistence/__tests__/TaskHistoryStore.deleteSemantics.spec.ts.Test Procedure
From the repository root, with dependencies installed:
Expected: the delete-path contract (every id reported, entries and files kept when the batch failed, the canonical key used for the lock) plus the reconciliation and concurrency suites.
Environment: Windows 11, Node 20, unit layer only.
Pre-Submission Checklist
.changesetor CHANGELOG changes (AGENTS.md).src/eslint-suppressions.jsonunchanged - no suppression count increased.--max-warnings=0) rather than relying on suppressions.Visual Snapshots
Not applicable - the delete-path locking is extension-host internal.
Videos (interaction / animation only)
Not applicable.
Documentation Updates
No user-facing documentation change: the delete path's locking is internal, there is no new setting or surface, and no model-facing text changed. No
.changesetand no CHANGELOG edit (AGENTS.md).Additional Notes
taskFileMtimesis populated only by the reconcile path, so an un-reconciled store legitimately has an empty map there; the failed-batch test seeds it before asserting presence.Verification at this head
core/task-persistence: 197 passed (11 files).core/tools+integrations/editor: 916 passed, 5 skipped, 2 failed - both failures donor-junction artifacts of the local harness (DEFAULT_WRITE_DELAY_MSresolves from a stale junctioned dist; CI test and compile are green at this head).src) exit 0; suppressions unchanged.Updated this round
Get in Touch
Reviewer and maintainer questions are welcome as comments on this PR or on #1991.
Stryker directive removal (equivalence notes)
Per AGENTS.md the two Stryker suppression comments in the guarded save
path were removed instead of kept; their equivalence claims:
"update"->""): an empty kinddispatches exactly like
"update"inside guardedWrite - only"edit"and
"create"branch distinctly - and the default-parameter line isnot part of this unit's changed-line selector, so the mutant is
equivalent / out of scope.
GuardRejectedErroris only thrown by guardedWrite, which is reachedonly after the
!saveTaskcheck above has already thrown. Wheneverthe operand is evaluated
saveTaskis provably non-null, so droppingthe operand cannot change which branch is taken.
mutation-diff remains advisory for stacked units; maintainers decide any
narrow gate-config exclusion.
Re-review responses (error-fix re-review wave)
lstats the lexical leaf whenrealpathreports ENOENT and refusessymbolic-link leaves (and unresolvable lstat failures) before authorizing
the write - the publish resolves the name again, so an unchecked referent
could receive the bytes outside the authorized container. Genuinely missing
leaves keep the existing create path. Regression test asserts the guard
rejects before the publish is reached.
Dangling-leaf refusal on this branch (3a5ebbb)
The leaf-link refusal described in the previous round's section now
lands on this branch: the guarded write lstats the lexical leaf before
publishing and refuses a symbolic link that does not resolve, so the
publish can never follow a referent the check did not authorize. The
commit is byte-identical to the copy that first landed on the U7 branch;
negative control: removing the check reddens exactly the dangling-symlink
test. 67/67 green at this head.
Out of Scope Changes disposition (timing, not necessity). The row
lists predecessor-unit implementation (observation tracking, read
completeness, indentation clipping,
DiffViewProviderteardown) that U9does not require. Every PR in this chain targets
main, so each diffcarries the open predecessor units until they merge; the declared merge
order places them all before this PR, after which this diff reduces to
the U9 deletion changes plus the minimal canonical-lock and
approved-identity support the issue requires. Nothing listed is
implemented here for the first time:
DiffViewProviderteardownSecurity Boundaries disposition (already-registered family). The row
repeats the TOCTOU ancestor-swap claim already dispositioned and
registered: the fix lands once at the publish-primitive owner and copies
(record 6106959976 on issue 1408; tracking 1991).