fix(web): file panel no longer serves stale files after agent edits - #7627
fix(web): file panel no longer serves stale files after agent edits#7627flamboh wants to merge 7 commits into
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📝 WalkthroughWalkthrough
ChangesCheckpoint Refresh Flow
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to A background agent edit can still leave an open file showing stale contents when the edit arrives during the initial load, and disabled image scopes may trigger unnecessary file reads. The stale-data race should be fixed or explicitly accepted before merging. Sequence Diagram(s)sequenceDiagram
participant FilePreviewPanel
participant useCheckpointsSnapshot
participant useCheckpointQueryRefresh
participant QueryAtoms
FilePreviewPanel->>useCheckpointsSnapshot: read thread-scoped checkpoint snapshot
useCheckpointsSnapshot-->>useCheckpointQueryRefresh: provide snapshot
useCheckpointQueryRefresh->>useCheckpointQueryRefresh: evaluate scope and file relevance
useCheckpointQueryRefresh->>QueryAtoms: refresh project-entry or selected-file query
QueryAtoms-->>FilePreviewPanel: provide refreshed data
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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ApprovabilityVerdict: Not approved Macroscope's review found this PR not approvable — The PR adds a checkpoint-driven reconciliation state machine that changes when cached file and explorer RPC queries refetch, including handling for reverts and in-flight reads. The scope is focused, but the new cross-cutting runtime behavior and edge-case state handling warrant human review. You can add or adjust custom eligibility rules. Learn more. |
The file preview and tree cache readFile/listEntries results in query atoms that nothing invalidated, so agent edits stayed invisible until an app restart (pingdotgg#5779). Turn checkpoints already carry a changed-file list; the panel now reconciles its queries against every checkpoint it has not yet seen and refetches when one touched what it shows, including interrupted turns and reverts. No polling, no watchers, no new wire traffic. Authored by Claude Fable 5 via Claude Code, directed by flamboh.
A checkpoint landing while a query's first fetch was in flight was marked reconciled even though that read may have snapshotted disk before the turn's writes, leaving stale content with no later correction. The marker now stays unreconciled in that case and the settled result re-evaluates it, so the common path still avoids double fetches. Authored by Claude Fable 5 via Claude Code, directed by flamboh.
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Drops a stray blank line that failed `vp check` in CI.
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Inline comments:
In `@apps/web/src/components/files/checkpointFileRefresh.ts`:
- Around line 129-135: Update the checkpoint reconciliation flow around
firstFetchInFlight so a checkpoint arriving during the initial file read is not
prematurely persisted when marker is undefined. Defer advancing reconciledScopes
until the initial read settles, then detect the changed checkpoint and trigger a
refresh; preserve normal handling for already-established markers. Add a
regression test covering a null snapshot that becomes relevant while the initial
query is waiting.
In `@apps/web/src/components/files/FilePreviewPanel.tsx`:
- Around line 802-808: Update the useCheckpointQueryRefresh call in
FilePreviewPanel to pass an inert atom whenever its scopeKey is null, preventing
image paths from subscribing to getProjectFileQueryAtom or issuing
projectEnvironment.readFile requests while useProjectFileQuery is disabled. Add
a request-spy regression test covering an image path and asserting no file-query
request occurs.
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📒 Files selected for processing (3)
apps/web/src/components/files/FilePreviewPanel.tsxapps/web/src/components/files/checkpointFileRefresh.test.tsapps/web/src/components/files/checkpointFileRefresh.ts
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Note 🤖 GPT-5.6 Sol responding on behalf of Theo Please fix these issues before merge.
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2 participants
This PR closes
#5779
#5866
What Changed
Why
UI Changes
Before
files_before.mp4
After
files_after.mp4
Checklist
Authored by Claude Fable 5 via Claude Code in T3 Code.
Note
Fix stale files in
FilePreviewPanelby auto-refreshing on checkpoint changesuseCheckpointQueryRefreshhook, scope reconciliation cache, snapshot memoization, andcheckpointFilesIncludePathmatcher for repo-relative suffix matchinguseCheckpointsSnapshotreturning a non-null snapshot; if checkpoint data is delayed or empty, file queries may not refresh until a subsequent checkpoint arrivesMacroscope summarized bf4f1f1.
Summary by CodeRabbit
Bug Fixes
Tests