feat(fws): file-write safety series — trial build (all 15 component PRs) by easonLiangWorldedtech · Pull Request #1413 · Zoo-Code-Org/Zoo-Code

easonLiangWorldedtech · 2026-08-28T00:28:51Z

File-Write Safety — reviewer guide (trial VSIX included)

What this is: one installable VS Code build that composes the entire File-Write Safety series (epic #1375) — version-guarded atomic writes, the per-task change journal, per-write checkpoints, per-step change cards, and per-file / per-step rollback — so it can be tried end-to-end as a single extension.
This PR composes the entire series into one installable build so the combined behavior can be reviewed and tried end-to-end. The 15 component PRs (listed below) remain open and can be merged independently — this PR is a review convenience vehicle for the trial build, not a replacement for them.

1. What's in the build

#	PR (upstream)	Role	Status
P0-1	#1380`9dd9825c4`	fix(mcp): preserve concurrent MCP settings during initial creation (fixes#1371) — write-path hardening	✅ CI green
P0-2	#1381`654801346`	perf(write-path): remove artificial write delays by default (part of #1375)	✅ CI green
P0-3	#1382`ce34d4804`	fix(task): guard saveClineMessages against abandoned tasks (fixes#1021) — write-path hardening	✅ CI green
S1	#1383`2c1582bd9`	file version token for the guarded-write path (A1)	✅ CI green
S3	#1395`a37dd24f1`	atomic text publish primitive + safeWriteJson refactor (A4)	✅ CI green
S2	#1394`2965ad18e`	per-task file observation registry (A2)	✅ CI green
S4a	#1405`56ce4bfe9`	guarded write CAS core with per-path FIFO chain	✅ CI green
S4b	#1408`88c935278`	wire guarded writes into the diff-view save paths	✅ CI green
L1	#1403`991ab6935`	async post-save diagnostics on the chat-diff save path	✅ CI green
L2	#1384`c0ef476be`	make chat-diff the default approval path	✅ CI green
B1	#1404`b98f15903`	per-write checkpoints + task-start baseline + perWriteCheckpoints setting	✅ CI green
B2	#1406`93a832906`	per-task JSONL change journal (torn-tail repair)	✅ CI green
B3a	#1411`341a9c22a`	per-step change cards + changeCardDetail setting (extension host)	✅ CI green
B3c	#1410`d64389c16`	per-file/per-step rollback service (workspace-contained)	✅ CI green
B3b	#1412`502f8ca98`	change cards UI + rollback buttons (webview)	✅ CI green

Trial branch:feat/fws-trial-all @ 4fc14c48d (all 15 heads merged, additive; plus five trial-only commits — addenda 6a0feb131 + 376e013fa reconcile the composed L2 chat-diff default with the write/apply-patch/edit_file/edit/search_replace spec suites and record apply_diff's own read as a guarded-write observation, addendum 178e6f405 addresses the CodeRabbit round-3 findings (apply_patch self-read observation, mcp_settings merge array guard + spec-mock production parity, safeWriteJson test mock hygiene, webview writeDelayMs placeholder → shared default, ChangeCard no-files step resolution + Tailwind v4 grow, CheckpointSettings sibling settings, Catalan fix), and addendum d2239ceb5 hardens checkpoint restore (checkpoint verification via rev-parse + realpath containment for symlinked ancestors), and addendum 4fc14c48d addresses the CodeRabbit round-4 findings (McpHub.spec unknown-safe error.code guard, exported createInitialExtensionState + pre-hydration defaults test), and addendum 6 (merges aa1a2140c, 3c5dfa32c, 83d83a3bc) re-includes the updated component PRs #1411 (apply_diff per-write checkpoint + change card) and #1412 (change-card open-in-editor control, native button) after the trial-review user feedback; addendum 7 (merges 2bd79a4ac, eaabaa074) re-includes the CodeRabbit follow-up fixes on both: #1411 341a9c2 (pre-hydration defaults spec asserts both initializer defaults) and #1412 502f8ca (typed VSCodeCheckbox change events + typed settings test doubles).) The installable VSIX is the CI-built zoo-code-vsix-pr-1413 artifact from this PR's Code QA run.

2. Install (5 minutes)

Download the CI build from the PR's Code QA run (the artifact zip contains zoo-code-3.80.0.vsix; or gh run download 33161152644 --repo Zoo-Code-Org/Zoo-Code --name zoo-code-vsix-pr-1413):

zoo-code-vsix-pr-1413.zip

File	Size	SHA-256
`zoo-code-vsix-pr-1413.zip` (CI artifact wrapper)	33,685,472 bytes	—
`zoo-code-3.80.0.vsix` (inside the zip — verify this one)	34,604,605 bytes	`016e930f687fd5db1fed37854612541fe3bc457490f05197c28b722bd6adb82e`

code --install-extension zoo-code-*.vsix — or Extensions view → ⋯ → Install from VSIX.
Reload the window; open a workspace with a git repo (checkpoints require git).

3. What changed for you

3.1 File writes are now version-guarded and loud-failing (P0 + S4)

Every write tool records the file's content version at read time; a write whose file changed on disk since the read is rejected with an explicit message instead of silently clobbering.
"File was deleted after it was read" produces a clear re-read-and-retry message (no raw ENOENT).

3.2 A checkpoint after every successful write (B1)

With Per-write checkpoints on (default): each successful file write takes a shadow-git snapshot; the task also takes a baseline snapshot at task start.
Setting: Settings → Checkpoints → "Checkpoint after every file write" (perWriteCheckpoints), i18n in 18 locales.

3.3 Change cards in the chat (B3a + B3b)

After each file-writing step, a change card renders in the chat: file count, per-file +/− badges, and (depending on the detail setting) the full diff inline or lazy.
Setting: Settings → Checkpoints → "Show full diff in change cards" (changeCardDetail: summary | full).

3.4 Roll back any file or whole step (B3c + B3b)

Per-file Rollback button on each card row; per-step Rollback step button.
Restores the file(s) to the checkpoint commit the step produced; a file that did not exist at the checkpoint is deleted. Rollback targets outside the workspace are rejected.
The card shows pending / success / error states per file, correlated by message timestamp.

3.5 The audit trail (B2)

Each step's writes are journaled to a per-task changes.jsonl (torn-tail repair on load). The journal maps files → checkpoint commits and drives the per-step rollback.

4. New UI surfaces — screenshots & guide

4.1 Change card — summary detail (default)


Header: "N file(s) changed this step"; per-file +/− badges; rollback controls

4.2 Change card — full detail (diff inline)

4.3 Rollback states


Per file: pending (progress ring) → success / error; per-step: "Rolling back…" while the checkpoint restore runs

4.4 Settings — Checkpoints section


perWriteCheckpoints + changeCardDetail controls (i18n)

4.5 User-feedback round (addendum 6) — §4.1–4.3 re-shot to include the new open-file control

apply_diff writes now emit a change card like every other writing tool (same 4.1/4.2 design, per-file restore included) — previously apply_diff wrote with no card and no restore button.
Every file row on a card has an open-in-editor icon (external-link): on diff rows it sits on the CodeAccordion header; on no-diff rows it is a native button at the end of the row (keyboard-activatable). Clicking opens the file in the editor via the existing openFile host action.
Addendum 7 is a code-only hardening round (typed checkbox change events, tighter spec doubles, one extra default assertion) — no visible UI change, so §4.1–4.3 remain accurate for this head.

5. What to verify during the trial

Let the agent create + edit + delete files; a change card appears after each writing step.
Edit the same file by hand, then let the agent write it again → expect a guarded-write failure message (no silent clobber).
Delete a file the agent previously read, then have it write it → expect the "deleted after read, re-read and retry" message.
Use per-file rollback on a card → file content reverts to the step checkpoint; the card row shows success.
Use rollback step on a multi-file card → every listed file reverts.
Toggle changeCardDetail to full → cards show the inline diff; toggle back → summary.
Toggle perWriteCheckpoints off → new steps stop taking per-write checkpoints (baseline still taken).
Rollback on a card older than the current task (after a task restart) → correlated failure result, card clears its pending state.
Have the agent apply a diff (apply_diff) — a change card with restore now appears (before this addendum apply_diff wrote with no card).
Click the external-link icon on a card file row — the file opens in the editor.

6. Provenance

Trial branch: feat/fws-trial-all @ eaabaa074 (addenda 6a0feb131, 376e013fa, 178e6f405, d2239ceb5, 4fc14c48d + addendum 6 re-including feat(checkpoints): per-step change cards and changeCardDetail setting (B3a, #1375) #1411/feat(webview): change cards UI and rollback buttons (B3b, #1375) #1412 user-feedback fixes + CodeRabbit a11y native-button fix + addendum 7 re-including feat(checkpoints): per-step change cards and changeCardDetail setting (B3a, #1375) #1411341a9c2 and feat(webview): change cards UI and rollback buttons (B3b, #1375) #1412502f8ca CodeRabbit typing/default-assertion fixes)
CI artifact: Code QA run 33161152644 — ubuntu unit, e2e-mock, codecov/patch, compile, Build test VSIX, webview-visual, CodeQL all green (windows unit also green; non-blocking per series rule)
Component PR heads: as in §1.

Summary by CodeRabbit

New Features
- Added per-step change cards showing modified files, additions, deletions, and optional inline diffs.
- Added controls to roll back individual files or entire steps.
- Added settings for checkpoints after each write and full or summary change details.
- Enabled chat-diff approval and guarded file updates by default.
Bug Fixes
- Improved protection against overwriting files changed externally.
- Preserved concurrent MCP configuration updates.
- Reduced the default write delay to zero for faster updates.
Localization
- Added translated change-card and checkpoint settings text across supported languages.

…ixesZoo-Code-Org#1371) getMcpSettingsFilePath() created the default mcp_settings.json with a check-then-write: fileExistsAtPath() followed by an unconditional fs.writeFile of the empty stub. Two windows racing at startup both saw the file as absent, and the second blind write truncated the first window's config to the 122-byte stub. The stub write now goes through safeWriteJson with a merge callback: the read happens under the advisory lock, and any config already on disk (written by a concurrent process after the existence check) is preserved instead of clobbered. The fast path (file exists -> no write) is unchanged, so no watcher-triggered reloads or write amplification. Test: regression test reproduces the interleaving (existence check sees absent file, locked read sees the concurrent config) and asserts the creation write carries the concurrent config, not the stub. The safeWriteJson spec mock now honors options.merge.

…oo-Code-Org#1375) Two latency sources on the agent file-write path were removed or defaulted off: - DEFAULT_WRITE_DELAY_MS is now 0 instead of 1000, so writes no longer wait a full second for post-save diagnostics by default. The setting itself is unchanged: users who rely on auto-formatters that settle asynchronously (e.g. goimports for Go) can raise writeDelayMs back up; the comment on the constant documents that tradeoff. - WriteToFileTool no longer waits delay(300) before scrollToFirstDiff(). The other five write tools (EditFile, Edit, SearchReplace, ApplyPatch, ApplyDiff) already call scrollToFirstDiff() directly, and DiffViewProvider already re-reveals the first diff on a deferred 100ms timer to beat the diff editor's late layout pass, so the 300ms pause was redundant pacing. The delay() import is removed (DiffViewProvider still uses the package). Tests: ClineProvider spec now asserts the default via DEFAULT_WRITE_DELAY_MS instead of a hardcoded 1000. WriteToFileTool and ClineProvider suites pass (19 + 151).

…-Code-Org#1021) Fire-and-forget saveClineMessages() calls could execute updateTaskHistory() after abandonSubtask's atomicUpdatePair() had already cleared parentTaskId/rootTaskId, silently reattaching the severed parent-child link. Check this.abandoned before updateTaskHistory() to catch both the explicit abort save and any in-flight fire-and-forget saves. Per-task message persistence is unaffected: saveTaskMessages still runs, only the (stale) history-item update is skipped. This is the minimal upstream-main form of the fix developed on the local-usage-stats branch (commit 1d1eb91); that commit's surrounding usage-stats changes are not part of main and are excluded. Regression test in Task.spec.ts: an abandoned task's saveClineMessages() persists messages but never calls updateTaskHistory().

Per CodeRabbit review on this PR: the spec covered the writeDelayMs default and pass-through via getState(), plus the save handler, but not the value returned by getStateToPostToWebview(). Add both cases (persisted value passes through; unset value falls back to DEFAULT_WRITE_DELAY_MS) so a regression that drops the field from the posted state is caught.

Per CodeRabbit review: document why the provider test double uses the as unknown as MockedClineProvider double assertion (Task receives a full ClineProvider at runtime; this focused unit test only exercises a few methods) — same pattern and rationale as the existing Subtask Rate Limiting block.

Codecov reported 2 patch lines (1 missing, 1 partial) in the safeWriteJson merge callback. Add the three remaining fallback cases: absent file (merge sees null), existing content without an mcpServers object, and mcpServers present but not an object - all must write the default stub. All changed lines and branches of the merge callback are now covered.

CI (platform-unit-test) caught a hardcoded expectation of delay(1000) in the saveChanges no-arguments test: with the new default the no-parameter saveChanges() passes DEFAULT_WRITE_DELAY_MS (0) through to delay(). Assert the constant instead of the old literal so the test tracks the shared default.

…oo-Code-Org#1375) Introduces the version token - dev:ino:size:mtimeNs:ctimeNs derived from a single fs.stat - a pure function of a file's on-disk state that every process computing from the same state agrees on. The compare-and-swap write guard (A2/A3) will compare the token observed at read time against the token recomputed before a write to detect stale or replaced files. No production callers yet: this is infrastructure for the file-write safety series (plan: #33), part of upstream epic Zoo-Code-Org#1375.

…oo-Code-Org#1375) Review finding: 'ino is an exact integer' was overstated. Node exposes ino as a float64 number: exact for small POSIX inode numbers, but on modern Windows the file ID exceeds 2^53 so Node's own value is already rounded (verified on node v25: non-zero ino, isSafeInteger=false). It remains deterministic per file (same file -> same token), so the token contract is unchanged; change detection rests on exact dev/size plus the mtime/ctime ns fields. Document the bound instead of claiming exactness.

Zoo-Code-Org#1375) CodeRabbit finding on this PR: the default numeric fs.stat() loses precision (values above 2^53 are rounded, including Windows file IDs) and the ms->ns derivation introduced a double-precision quantum. Fixed by fetching the stat with { bigint: true }: all five token fields (dev, ino, size, mtimeNs, ctimeNs) are exact BigInt values rendered as decimal strings, with no float anywhere. The sub-ms test now asserts an exact 1_000 ns delta instead of bounded drift, and a regression test pins a size of 10^16+1 (> Number.MAX_SAFE_INTEGER).

…Code-Org#1375) Flips the PREVENT_FOCUS_DISRUPTION experiment default from false to true so the chat-diff approval path (approve in chat, save directly, no diff-editor focus) is the default. The diff-editor path remains available by toggling the experiment off; the storage key is unchanged so saved values are preserved. Production call sites already route through experiments.isEnabled(... ?? {}), so the flip applies automatically. Test-only changes pin the legacy path explicitly where base mocks relied on the old default.

…e tool suites (L2, Zoo-Code-Org#1375)

…diff default (L2, Zoo-Code-Org#1375)

…ctor (A4, Zoo-Code-Org#1375)

…oo-Code-Org#1375)

…oo-Code-Org#1375) Introduces the version token - dev:ino:size:mtimeNs:ctimeNs derived from a single fs.stat - a pure function of a file's on-disk state that every process computing from the same state agrees on. The compare-and-swap write guard (A2/A3) will compare the token observed at read time against the token recomputed before a write to detect stale or replaced files. No production callers yet: this is infrastructure for the file-write safety series (plan: #33), part of upstream epic Zoo-Code-Org#1375.

…oo-Code-Org#1375) Review finding: 'ino is an exact integer' was overstated. Node exposes ino as a float64 number: exact for small POSIX inode numbers, but on modern Windows the file ID exceeds 2^53 so Node's own value is already rounded (verified on node v25: non-zero ino, isSafeInteger=false). It remains deterministic per file (same file -> same token), so the token contract is unchanged; change detection rests on exact dev/size plus the mtime/ctime ns fields. Document the bound instead of claiming exactness.

Zoo-Code-Org#1375) CodeRabbit finding on this PR: the default numeric fs.stat() loses precision (values above 2^53 are rounded, including Windows file IDs) and the ms->ns derivation introduced a double-precision quantum. Fixed by fetching the stat with { bigint: true }: all five token fields (dev, ino, size, mtimeNs, ctimeNs) are exact BigInt values rendered as decimal strings, with no float anywhere. The sub-ms test now asserts an exact 1_000 ns delta instead of bounded drift, and a regression test pins a size of 10^16+1 (> Number.MAX_SAFE_INTEGER).

…o-Code-Org#1375)

…oo-Code-Org#1375)

…rWriteCheckpoints setting (B1, Zoo-Code-Org#1375)

…oo-Code-Org#1375)

… (B3a, Zoo-Code-Org#1375)

…ode-Org#1375)

…g#1375)

Merged into the trial build branch; the component PR stays the review unit.

…eFile targets restoreFile verifies the checkpoint object (rev-parse --verify; simple-git raw() resolves silently when git exits non-zero without stderr, so cat-file -e would have read a missing checkpoint as present) before the exists-at-commit lookup, and rejects with Checkpoint unavailable instead of deleting the selected file. When the restore target file exists, both the workspace root and the target are fs.realpath-resolved and containment is re-checked, so a link inside the workspace pointing outside it is rejected before any mutation. Regressions: unavailable checkpoint keeps the live file; symlinked ancestor is rejected (POSIX). (CodeRabbit security finding on trial Zoo-Code-Org#1413).

…ings, Catalan fix ChangeCard resolves stepRollback from a correlated result that carries neither filePath nor files (the missing-task shape), instead of leaving the step pending; the three flex-grow utilities become the Tailwind v4 grow utility; checkpoints-changeCardDetail is a sibling SearchableSetting of checkpoints-perWriteCheckpoints instead of nested inside it; the Catalan rollbackFailed reads La reversio ha fallat. UI regressions added for the no-files failure/success shapes. (CodeRabbit findings on trial Zoo-Code-Org#1413).

…, unknown-safe code read The mcp_settings merge callback now requires a plain object (!Array.isArray), so an existing mcpServers: [] is replaced by the empty stub instead of being preserved and later rejected by McpSettingsSchema; the safeWriteJson spec mock mirrors the production merge contract (only ENOENT and SyntaxError are recoverable, any other read failure rejects before the merge callback runs, with an EACCES regression); the error.code read in the mock uses an unknown-safe type guard instead of an object cast. (CodeRabbit findings on trial Zoo-Code-Org#1413).

…heckpoint default createInitialExtensionState is exported and a focused test asserts it initializes perWriteCheckpoints to true: a regression that dropped the key from the initializer (rather than from a merge fixture) would otherwise stay hidden (CodeRabbit finding on trial Zoo-Code-Org#1413).

createInitialExtensionState is exported (shared with the sibling pre-hydration default tests) and a focused test asserts it initializes changeCardDetail to summary: a regression that dropped the key from the initializer would otherwise stay hidden because the merge tests supply the key manually (CodeRabbit finding on trial Zoo-Code-Org#1413).

The hunk reader now doubles as the S2 observation (ReadFileTool contract): stat before and after the read and record the version token when the on-disk version is unchanged, so the in-place modify publish is not rejected as an unobserved write even though this tool just read the exact content the patch was applied to. Regressions: a stable read records the observation; a mid-read change does not, and the publish surfaces the unobserved-existing remediation. (CodeRabbit finding on trial Zoo-Code-Org#1413).

… (B3a, Zoo-Code-Org#1375)

…oo-Code-Org#1375)

…at-pair read (S4b)

(apply_diff per-write checkpoint and change card)

(change-card open-in-editor control)

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Inline comments:
In `@webview-ui/src/components/chat/ChangeCard.tsx`:
- Around line 313-322: Replace the compact-row open-file span in ChangeCard with
the project’s native Button component, preserving its click behavior, accessible
label, title, test identifier, and icon styling; add a focused UI test verifying
keyboard activation opens the file.

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📥 Commits

Reviewing files that changed from the base of the PR and between 4fc14c4 and 3c5dfa3.

📒 Files selected for processing (23)

src/core/tools/ApplyDiffTool.ts
src/core/tools/__tests__/applyDiffTool.changeCard.spec.ts
webview-ui/src/components/chat/ChangeCard.tsx
webview-ui/src/components/chat/__tests__/ChangeCard.spec.tsx
webview-ui/src/context/__tests__/ExtensionStateContext.spec.tsx
webview-ui/src/i18n/locales/ca/chat.json
webview-ui/src/i18n/locales/de/chat.json
webview-ui/src/i18n/locales/en/chat.json
webview-ui/src/i18n/locales/es/chat.json
webview-ui/src/i18n/locales/fr/chat.json
webview-ui/src/i18n/locales/hi/chat.json
webview-ui/src/i18n/locales/id/chat.json
webview-ui/src/i18n/locales/it/chat.json
webview-ui/src/i18n/locales/ja/chat.json
webview-ui/src/i18n/locales/ko/chat.json
webview-ui/src/i18n/locales/nl/chat.json
webview-ui/src/i18n/locales/pl/chat.json
webview-ui/src/i18n/locales/pt-BR/chat.json
webview-ui/src/i18n/locales/ru/chat.json
webview-ui/src/i18n/locales/tr/chat.json
webview-ui/src/i18n/locales/vi/chat.json
webview-ui/src/i18n/locales/zh-CN/chat.json
webview-ui/src/i18n/locales/zh-TW/chat.json

🚧 Files skipped from review as they are similar to previous changes (18)

webview-ui/src/i18n/locales/ca/chat.json
webview-ui/src/i18n/locales/id/chat.json
webview-ui/src/i18n/locales/zh-CN/chat.json
webview-ui/src/i18n/locales/pl/chat.json
webview-ui/src/i18n/locales/en/chat.json
webview-ui/src/i18n/locales/ja/chat.json
webview-ui/src/i18n/locales/tr/chat.json
webview-ui/src/i18n/locales/es/chat.json
webview-ui/src/i18n/locales/pt-BR/chat.json
webview-ui/src/i18n/locales/zh-TW/chat.json
webview-ui/src/i18n/locales/nl/chat.json
webview-ui/src/i18n/locales/hi/chat.json
webview-ui/src/i18n/locales/ko/chat.json
webview-ui/src/i18n/locales/fr/chat.json
webview-ui/src/i18n/locales/ru/chat.json
webview-ui/src/i18n/locales/de/chat.json
webview-ui/src/i18n/locales/it/chat.json
webview-ui/src/i18n/locales/vi/chat.json

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…CodeRabbit a11y, B3b, Zoo-Code-Org#1375)

(native-button open-file control, CodeRabbit a11y)

…de changeCardDetail (CodeRabbit, B3a, Zoo-Code-Org#1375)

…bles (CodeRabbit, B3b, Zoo-Code-Org#1375)

(perWriteCheckpoints default assertion, CodeRabbit)

(typed checkbox events + test doubles, CodeRabbit)

easonliang28 added 30 commits August 27, 2026 09:30

test(experiments): cover unset-experiment default routing in all writ…
165bff4
…e tool suites (L2, Zoo-Code-Org#1375)

test(experiments): add explicit enabled-state routing tests for chat-…
c0ef476
…diff default (L2, Zoo-Code-Org#1375)

feat(task): per-task file observation registry (A2,Zoo-Code-Org#1375)
2965ad1

feat(file-safety): atomic text publish primitive + safeWriteJson refa…
a37dd24
…ctor (A4, Zoo-Code-Org#1375)

feat(editor): async post-save diagnostics on chat-diff save path (L1,Z…
991ab69
…oo-Code-Org#1375)

feat(task): per-task file observation registry (A2,Zoo-Code-Org#1375)
588b95f

feat(tools): guarded write CAS core with per-path FIFO chain (S4a,Zo…
7a25fc0
…o-Code-Org#1375)

feat(tools): wire guarded writes into the diff-view save paths (S4b,Z…
68be264
…oo-Code-Org#1375)

feat(checkpoints): per-write checkpoints, task-start baseline, and pe…
abfbe7f
…rWriteCheckpoints setting (B1, Zoo-Code-Org#1375)

feat(checkpoints): per-task change journal with torn-tail repair (B2,Z…
93a8329
…oo-Code-Org#1375)

feat(checkpoints): per-step change cards and changeCardDetail setting…
2500ab3
… (B3a, Zoo-Code-Org#1375)

feat(checkpoints): per-file and per-step rollback service (B3c,Zoo-C…
d0c60bf
…ode-Org#1375)

feat(webview): change cards UI and rollback buttons (B3b,Zoo-Code-Or…
4c16c00
…g#1375)

merge: file-write-safety trial — include PRZoo-Code-Org#1380
c3f4484
Merged into the trial build branch; the component PR stays the review unit.

merge: file-write-safety trial — include PRZoo-Code-Org#1381
490f27f
Merged into the trial build branch; the component PR stays the review unit.

merge: file-write-safety trial — include PRZoo-Code-Org#1382
95f3023
Merged into the trial build branch; the component PR stays the review unit.

github-actionsBot added the awaiting-review PR changes are ready and waiting for maintainer re-review label Aug 28, 2026

easonliang28 added 5 commits August 28, 2026 15:40

feat(fws): record per-write checkpoint and change card for apply_diff…
1f36d80
… (B3a, Zoo-Code-Org#1375)

feat(fws): add per-file open-in-editor control to change cards (B3b,Z…
7f6d136
…oo-Code-Org#1375)

test(fws): keep the apply_diff change-card spec green on the trial st…
94fea2f
…at-pair read (S4b)

merge: file-write-safety trial — re-include updated PRZoo-Code-Org#1411
aa1a214
(apply_diff per-write checkpoint and change card)

merge: file-write-safety trial — re-include updated PRZoo-Code-Org#1412
3c5dfa3
(change-card open-in-editor control)

easonLiangWorldedtech mentioned this pull request Aug 28, 2026
enhancement(apply_diff): fuzzy-match success warning, file-changed signal, large-file perf guard (trial agent feedback, epic #1375) #1418
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coderabbitaiBot reviewed Aug 28, 2026
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Comment threadwebview-ui/src/components/chat/ChangeCard.tsx Outdated

easonliang28 added 2 commits August 28, 2026 16:29

fix(fws): use a native button for the compact-row open-file control (…
c48522c
…CodeRabbit a11y, B3b, Zoo-Code-Org#1375)

merge: file-write-safety trial — re-include updated PRZoo-Code-Org#1412
83d83a3
(native-button open-file control, CodeRabbit a11y)

easonLiangWorldedtech mentioned this pull request Aug 28, 2026
Merge #977 (durable per-view state base) into the file-write-safety trial branch easonLiangWorldedtech/Zoo-Code#34
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easonliang28 added 4 commits August 28, 2026 17:38

test(fws): assert the perWriteCheckpoints initializer default alongsi…
341a9c2
…de changeCardDetail (CodeRabbit, B3a, Zoo-Code-Org#1375)

fix(fws): type VSCodeCheckbox change events and the settings test dou…
502f8ca
…bles (CodeRabbit, B3b, Zoo-Code-Org#1375)

merge: file-write-safety trial — re-include updated PRZoo-Code-Org#1411
2bd79a4
(perWriteCheckpoints default assertion, CodeRabbit)

merge: file-write-safety trial — re-include updated PRZoo-Code-Org#1412
eaabaa0
(typed checkbox events + test doubles, CodeRabbit)

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feat(fws): file-write safety series — trial build (all 15 component PRs) - #1413

feat(fws): file-write safety series — trial build (all 15 component PRs)#1413
easonLiangWorldedtech wants to merge 56 commits into
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easonLiangWorldedtech:feat/fws-trial-all

easonLiangWorldedtech commented Aug 28, 2026•
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easonLiangWorldedtech commented Aug 28, 2026• edited Loading Uh oh! There was an error while loading. Please reload this page.

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File-Write Safety — reviewer guide (trial VSIX included)

1. What's in the build

2. Install (5 minutes)

3. What changed for you

3.1 File writes are now version-guarded and loud-failing (P0 + S4)

3.2 A checkpoint after every successful write (B1)

3.3 Change cards in the chat (B3a + B3b)

3.4 Roll back any file or whole step (B3c + B3b)

3.5 The audit trail (B2)

4. New UI surfaces — screenshots & guide

4.1 Change card — summary detail (default)

4.2 Change card — full detail (diff inline)

4.3 Rollback states

4.4 Settings — Checkpoints section

4.5 User-feedback round (addendum 6) — §4.1–4.3 re-shot to include the new open-file control

5. What to verify during the trial

6. Provenance

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easonLiangWorldedtech commented Aug 28, 2026•
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