Task 09: Render findings as anchored diff annotations

Findings appear where the code is, in the same annotation surface as anchored comments.

Inputs

Spec What (findings render at their anchored line; advisory actions), the stale scenario, and the "not in current changes" failure row.
components/diff/use-diff-annotation-renderer.tsx — the AnnotationMetadata union to extend.
components/diff/use-diff-viewer-state.ts — useWalkthroughSelection is the exact shape for a store-driven annotation source; buildAnnotations shows how annotations anchor to endLine.
components/diff/comment-display.tsx — card layout and action-button conventions.
apps/web/AGENTS.md component limits (files ≤600 lines, components <200 lines) and cursor-pointer requirement.

Work

components/diff/review-finding-card.tsx — severity chip (blocker/major destructive-toned, minor/nit muted), category badge, title, Markdown body via the existing comment Markdown renderer, optional suggestion in a read-only code block with an explicit "not applied automatically" affordance, and the three actions. resolved / dismissed render collapsed with an Undo action.
components/diff/use-diff-annotation-renderer.tsx — add "review-finding" to the metadata type union with a finding field, and render the card.
components/diff/use-diff-viewer-state.ts — useReviewFindingAnnotations({ filePath, repo, diffHash }) reading the review slice for the active task, filtering to this file via findingFileKey, dropping stale findings that cannot be re-anchored, using reanchorFinding for the rest, and anchoring at end_line on the finding's side. Append to the annotation list next to the walkthrough annotation. Pass the file's current diffHash down from the review file list so the hook does not recompute it per render.
components/review/review-file-findings-banner.tsx — collapsible group rendered directly above a file's diff listing that file's stale findings and its findings whose anchor no longer exists, each with the same action set. This is the surface that guarantees a stale finding is neither dropped nor mis-anchored.
components/review/review-diff-list.tsx — thread diffHash and the banner into each file section; keep the file component under the size limit by extracting the banner rather than growing the section component.
hooks/domains/review/use-send-finding-to-agent.ts — builds the agent context payload from a finding (repository, path, line range, severity, title, body) and sends it through the same path use-run-comment.ts uses for a diff comment; the finding stays open.
hooks/domains/review/use-finding-actions.ts — resolve / dismiss / undo wrappers over updateReviewFindingStatus with optimistic slice updates and rollback on failure.

Acceptance

An open non-stale finding renders at its end_line in the correct file, in a multi-repository task only inside its own repository's file.
A stale finding does not render inline at its stored line; it appears in the file's stale banner.
A stale finding whose anchor_text still exists renders inline at the relocated line.
Resolve collapses the card and decrements the open count; failure rolls the optimistic update back.
Send-to-agent produces the expected context payload and leaves the finding open.

Verification

cd apps/web && pnpm vitest run components/diff/use-diff-viewer-state.test.ts components/diff/review-finding-card.test.tsx hooks/domains/review
cd apps/web && pnpm run typecheck && pnpm lint

Files likely touched

components/diff/{review-finding-card.tsx,use-diff-annotation-renderer.tsx,use-diff-viewer-state.ts}, components/review/{review-file-findings-banner.tsx,review-diff-list.tsx}, hooks/domains/review/{use-send-finding-to-agent.ts,use-finding-actions.ts}, plus tests.

Output contract

Summary, files changed, tests run with results, blockers, risks, status: done, plan checkbox.

4.2 KiB Raw Blame History