diff --git a/src/renderer/src/components/GitHubItemDialog.tsx b/src/renderer/src/components/GitHubItemDialog.tsx
index 0e50c3bbc50..fc1f9505114 100644
--- a/src/renderer/src/components/GitHubItemDialog.tsx
+++ b/src/renderer/src/components/GitHubItemDialog.tsx
@@ -141,6 +141,7 @@ import { buildPRCommentConversationReplyBody } from '@/components/right-sidebar/
 import { useAppStore } from '@/store'
 import { useAllWorktrees } from '@/store/selectors'
 import { callRuntimeRpc, getActiveRuntimeTarget } from '@/runtime/runtime-rpc-client'
+import { withGitHubCheckDetailsTimeout } from '@/runtime/github-check-details-timeout'
 import { useRepoLabels, useRepoAssignees, useImmediateMutation } from '@/hooks/useIssueMetadata'
 import { useRepoLabelsBySlug, useRepoAssigneesBySlug } from '@/hooks/useGitHubSlugMetadata'
 import { GitHubMarkdownComposer } from '@/components/github/GitHubMarkdownComposer'
@@ -3473,16 +3474,18 @@ function ChecksTab({
             },
             { timeoutMs: 30_000 }
           )
-        : window.api.gh.prCheckDetails({
-            repoPath: repoPath ?? '',
-            repoId: repoId ?? undefined,
-            sourceContext,
-            checkRunId: check.checkRunId,
-            workflowRunId: check.workflowRunId,
-            checkName: check.name,
-            url: check.url,
-            prRepo
-          })
+        : withGitHubCheckDetailsTimeout(
+            window.api.gh.prCheckDetails({
+              repoPath: repoPath ?? '',
+              repoId: repoId ?? undefined,
+              sourceContext,
+              checkRunId: check.checkRunId,
+              workflowRunId: check.workflowRunId,
+              checkName: check.name,
+              url: check.url,
+              prRepo
+            })
+          )
       void detailsRequest
         .then((details) => {
           if (!mountedRef.current) {
diff --git a/src/renderer/src/components/PullRequestPage.tsx b/src/renderer/src/components/PullRequestPage.tsx
index 4b46d0148e5..4ef21776947 100644
--- a/src/renderer/src/components/PullRequestPage.tsx
+++ b/src/renderer/src/components/PullRequestPage.tsx
@@ -134,6 +134,7 @@ import { buildPRCommentConversationReplyBody } from '@/components/right-sidebar/
 import { useAppStore } from '@/store'
 import { useAllWorktrees } from '@/store/selectors'
 import { callRuntimeRpc, getActiveRuntimeTarget } from '@/runtime/runtime-rpc-client'
+import { withGitHubCheckDetailsTimeout } from '@/runtime/github-check-details-timeout'
 import { useRepoLabels, useRepoAssignees, useImmediateMutation } from '@/hooks/useIssueMetadata'
 import { useRepoLabelsBySlug, useRepoAssigneesBySlug } from '@/hooks/useGitHubSlugMetadata'
 import {
@@ -3557,16 +3558,18 @@ function ChecksTab({
             },
             { timeoutMs: 30_000 }
           )
-        : window.api.gh.prCheckDetails({
-            repoPath: repoPath ?? '',
-            repoId: repoId ?? undefined,
-            sourceContext,
-            checkRunId: check.checkRunId,
-            workflowRunId: check.workflowRunId,
-            checkName: check.name,
-            url: check.url,
-            prRepo
-          })
+        : withGitHubCheckDetailsTimeout(
+            window.api.gh.prCheckDetails({
+              repoPath: repoPath ?? '',
+              repoId: repoId ?? undefined,
+              sourceContext,
+              checkRunId: check.checkRunId,
+              workflowRunId: check.workflowRunId,
+              checkName: check.name,
+              url: check.url,
+              prRepo
+            })
+          )
       void detailsRequest
         .then((details) => {
           if (!mountedRef.current) {
diff --git a/src/renderer/src/components/editor/CheckRunDetailsPanel.tsx b/src/renderer/src/components/editor/CheckRunDetailsPanel.tsx
index 2a9a8c4ecd5..50350fb1b47 100644
--- a/src/renderer/src/components/editor/CheckRunDetailsPanel.tsx
+++ b/src/renderer/src/components/editor/CheckRunDetailsPanel.tsx
@@ -247,7 +247,11 @@ export function CheckRunDetailsPanel({
 
       <div className="min-h-0 flex-1 overflow-y-auto px-5 py-4 scrollbar-sleek">
         {loading ? (
-          <div className="flex items-center gap-2 py-4 text-sm text-muted-foreground">
+          <div
+            role="status"
+            aria-live="polite"
+            className="flex items-center gap-2 py-4 text-sm text-muted-foreground"
+          >
             <LoaderCircle className="size-4 animate-spin" />
             {translate(
               'auto.components.editor.CheckRunDetailsPanel.1f2b980522',
@@ -256,7 +260,11 @@ export function CheckRunDetailsPanel({
           </div>
         ) : (
           <div className="grid gap-4">
-            {error && <div className="text-sm text-muted-foreground">{error}</div>}
+            {error && (
+              <div role="alert" className="min-w-0 break-words text-sm text-destructive">
+                {error}
+              </div>
+            )}
 
             {hasOutput && (
               <section className="rounded-md border border-border bg-background">
diff --git a/src/renderer/src/components/editor/check-run-details-tab.ts b/src/renderer/src/components/editor/check-run-details-tab.ts
index bbc8fc1180b..02e833b61b6 100644
--- a/src/renderer/src/components/editor/check-run-details-tab.ts
+++ b/src/renderer/src/components/editor/check-run-details-tab.ts
@@ -1,21 +1,34 @@
 import type { GitLabProjectRef } from '../../../../shared/gitlab-types'
-import type { PRCheckDetail, PRCheckRunDetails } from '../../../../shared/types'
+import type {
+  GitHubRepositoryIdentity,
+  PRCheckDetail,
+  PRCheckRunDetails
+} from '../../../../shared/types'
 
 export type OpenCheckRunDetailsState = {
   contextKey: string
   check: PRCheckDetail
+  requestId?: number
   details: PRCheckRunDetails | null
   loading: boolean
   error: string | null
+  githubRepository?: GitHubRepositoryIdentity | null
   /** Why: fork/cross-project MR jobs live outside the repo's own project, so reloads need the pipeline's project. */
   gitlabProjectRef?: GitLabProjectRef | null
 }
 
 export type CheckRunDetailsTabPatch = Pick<
   OpenCheckRunDetailsState,
-  'details' | 'loading' | 'error' | 'gitlabProjectRef'
+  'requestId' | 'details' | 'loading' | 'error' | 'githubRepository' | 'gitlabProjectRef'
 >
 
+let nextCheckRunDetailsRequestId = 0
+
+export function createCheckRunDetailsRequestId(): number {
+  nextCheckRunDetailsRequestId += 1
+  return nextCheckRunDetailsRequestId
+}
+
 export function isSameGitLabProjectRef(
   a: GitLabProjectRef | null,
   b: GitLabProjectRef | null
@@ -23,6 +36,13 @@ export function isSameGitLabProjectRef(
   return a === b || (a?.host === b?.host && a?.path === b?.path)
 }
 
+export function isSameGitHubRepository(
+  a: GitHubRepositoryIdentity | null,
+  b: GitHubRepositoryIdentity | null
+): boolean {
+  return a === b || (a?.owner === b?.owner && a?.repo === b?.repo && a?.host === b?.host)
+}
+
 export function getCheckRunTabIdentity(check: PRCheckDetail): string {
   if (check.checkRunId) {
     return `check-run:${check.checkRunId}`
diff --git a/src/renderer/src/components/github-item-dialog-source-boundary.test.ts b/src/renderer/src/components/github-item-dialog-source-boundary.test.ts
index a773910d332..265aeaf9417 100644
--- a/src/renderer/src/components/github-item-dialog-source-boundary.test.ts
+++ b/src/renderer/src/components/github-item-dialog-source-boundary.test.ts
@@ -230,6 +230,9 @@ describe('GitHubItemDialog source host boundaries', () => {
     expect(checksSection).toContain('window.api.gh.prChecks({')
     expect(checksSection).toContain('window.api.gh.rerunPRChecks({')
     expect(checksSection).toContain('prCheckDetails({')
+    expect(checksSection).toMatch(
+      /withGitHubCheckDetailsTimeout\(\s*window\.api\.gh\.prCheckDetails\(\{/
+    )
   })
 
   it('uses hydrated work item details for the page checks tab', () => {
diff --git a/src/renderer/src/components/pull-request-page-host-boundary.test.ts b/src/renderer/src/components/pull-request-page-host-boundary.test.ts
index 10407760e6d..84c391b92f0 100644
--- a/src/renderer/src/components/pull-request-page-host-boundary.test.ts
+++ b/src/renderer/src/components/pull-request-page-host-boundary.test.ts
@@ -249,6 +249,9 @@ describe('PullRequestPage host boundaries', () => {
     expect(checksSection).toContain('window.api.gh.prChecks({')
     expect(checksSection).toContain('window.api.gh.rerunPRChecks({')
     expect(checksSection).toContain('prCheckDetails({')
+    expect(checksSection).toMatch(
+      /withGitHubCheckDetailsTimeout\(\s*window\.api\.gh\.prCheckDetails\(\{/
+    )
   })
 
   it('routes edit metadata and mutations through the PR source context', () => {
diff --git a/src/renderer/src/components/right-sidebar/ChecksPanel.tsx b/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
index 9fc66a78819..d41233815d1 100644
--- a/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
+++ b/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
@@ -4532,6 +4532,7 @@ export default function ChecksPanel(): React.JSX.Element {
           checksLoading={checksLoading}
           checkDetailsContextKey={stateRequestKey}
           onLoadCheckDetails={handleLoadCheckDetails}
+          githubRepository={pr?.prRepo ?? null}
           getGitLabProjectRef={getGitLabProjectRef}
         />
       )}
diff --git a/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksPanel.tsx b/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksPanel.tsx
index 0c64561edec..f2e3bdda640 100644
--- a/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksPanel.tsx
+++ b/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksPanel.tsx
@@ -181,7 +181,7 @@ export default function FolderWorkspacePrChecksPanel({
           workflowRunId: check.workflowRunId,
           checkName: check.name,
           url: check.url,
-          prRepo: null
+          prRepo: row.githubRepository ?? null
         },
         { repoId: row.repo.id }
       )
diff --git a/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksRow.tsx b/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksRow.tsx
index 29d82748467..cd07701bde7 100644
--- a/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksRow.tsx
+++ b/src/renderer/src/components/right-sidebar/FolderWorkspacePrChecksRow.tsx
@@ -128,6 +128,7 @@ export function FolderWorkspacePrChecksRow({
             checksLoading={row.isRefreshing}
             checkDetailsContextKey={row.refreshIdentity}
             onLoadCheckDetails={onLoadCheckDetails}
+            githubRepository={row.githubRepository ?? null}
             worktreeId={row.worktree.id}
             detailsStickySurface="card"
           />
diff --git a/src/renderer/src/components/right-sidebar/checks-list-expanded-details.test.tsx b/src/renderer/src/components/right-sidebar/checks-list-expanded-details.test.tsx
index 1a4bfdd8b58..f3b61948121 100644
--- a/src/renderer/src/components/right-sidebar/checks-list-expanded-details.test.tsx
+++ b/src/renderer/src/components/right-sidebar/checks-list-expanded-details.test.tsx
@@ -7,6 +7,8 @@ import { TooltipProvider } from '@/components/ui/tooltip'
 import type { PRCheckDetail, PRCheckRunDetails } from '../../../../shared/types'
 import { ChecksList } from './checks-panel-content'
 
+globalThis.IS_REACT_ACT_ENVIRONMENT = true
+
 const openCheckRunDetails = vi.fn()
 const patchOpenCheckRunDetails = vi.fn()
 const activeWorktreeState = vi.hoisted(() => ({
@@ -84,6 +86,7 @@ function renderChecksList(
   props: Partial<{
     worktreeId: string
     detailsStickySurface: 'sidebar' | 'card'
+    checkDetailsContextKey: string
     checks: PRCheckDetail[]
     onLoadCheckDetails: (check: PRCheckDetail) => Promise<PRCheckRunDetails | null>
   }> = {}
@@ -94,7 +97,7 @@ function renderChecksList(
         <ChecksList
           checks={props.checks ?? [failingCheck]}
           checksLoading={false}
-          checkDetailsContextKey="repo:42"
+          checkDetailsContextKey={props.checkDetailsContextKey ?? 'repo:42'}
           worktreeId={props.worktreeId}
           detailsStickySurface={props.detailsStickySurface ?? 'sidebar'}
           onLoadCheckDetails={
@@ -212,6 +215,137 @@ describe('ChecksList expanded check details', () => {
     expect(stickyBar?.textContent).not.toContain('View full logs')
   })
 
+  it('finishes the full-details tab when its sidebar unmounts during loading', async () => {
+    let resolveDetails: (details: PRCheckRunDetails) => void = () => {}
+    const request = new Promise<PRCheckRunDetails>((resolve) => {
+      resolveDetails = resolve
+    })
+    renderChecksList({ worktreeId: 'wt-child-1', onLoadCheckDetails: () => request })
+
+    await act(async () => {
+      await Promise.resolve()
+    })
+    patchOpenCheckRunDetails.mockClear()
+    const button = [...container.querySelectorAll('button')].find((candidate) =>
+      candidate.textContent?.includes('View full details')
+    )
+
+    act(() => {
+      button!.dispatchEvent(new MouseEvent('click', { bubbles: true }))
+      root.render(<div />)
+    })
+    await act(async () => {
+      resolveDetails(checkDetails)
+      await request
+    })
+
+    expect(patchOpenCheckRunDetails).toHaveBeenCalledWith(
+      'wt-child-1',
+      'repo:42',
+      failingCheck,
+      expect.objectContaining({ details: checkDetails, loading: false, error: null })
+    )
+  })
+
+  it('shows a load error in the full-details tab after its sidebar unmounts', async () => {
+    let rejectDetails: (error: Error) => void = () => {}
+    const request = new Promise<PRCheckRunDetails>((_resolve, reject) => {
+      rejectDetails = reject
+    })
+    renderChecksList({ worktreeId: 'wt-child-1', onLoadCheckDetails: () => request })
+
+    await act(async () => {
+      await Promise.resolve()
+    })
+    patchOpenCheckRunDetails.mockClear()
+    const button = [...container.querySelectorAll('button')].find((candidate) =>
+      candidate.textContent?.includes('View full details')
+    )
+
+    act(() => {
+      button!.dispatchEvent(new MouseEvent('click', { bubbles: true }))
+      root.render(<div />)
+    })
+    await act(async () => {
+      rejectDetails(new Error('GitHub request failed'))
+      await request.catch(() => undefined)
+    })
+
+    expect(patchOpenCheckRunDetails).toHaveBeenCalledWith(
+      'wt-child-1',
+      'repo:42',
+      failingCheck,
+      expect.objectContaining({ details: null, loading: false, error: 'GitHub request failed' })
+    )
+  })
+
+  it('retries an inline details error', async () => {
+    const onLoadCheckDetails = vi
+      .fn<() => Promise<PRCheckRunDetails | null>>()
+      .mockRejectedValueOnce(new Error('GitHub request failed'))
+      .mockResolvedValueOnce(checkDetails)
+    renderChecksList({ onLoadCheckDetails })
+
+    await act(async () => {
+      await Promise.resolve()
+      await Promise.resolve()
+    })
+    const retry = [...container.querySelectorAll('button')].find(
+      (candidate) => candidate.textContent?.trim() === 'Retry'
+    )
+
+    await act(async () => {
+      retry!.dispatchEvent(new MouseEvent('click', { bubbles: true }))
+      await Promise.resolve()
+      await Promise.resolve()
+    })
+
+    expect(onLoadCheckDetails).toHaveBeenCalledTimes(2)
+    expect(container.textContent).toContain('Verify failed')
+  })
+
+  it('ignores a stale inline result after returning to the same context', async () => {
+    const requests: {
+      resolve: (details: PRCheckRunDetails) => void
+      reject: (error: Error) => void
+    }[] = []
+    const onLoadCheckDetails = vi.fn(
+      () =>
+        new Promise<PRCheckRunDetails>((resolve, reject) => {
+          requests.push({ resolve, reject })
+        })
+    )
+
+    renderChecksList({ checkDetailsContextKey: 'repo:A', onLoadCheckDetails })
+    await act(async () => {
+      await Promise.resolve()
+      await Promise.resolve()
+    })
+    renderChecksList({ checkDetailsContextKey: 'repo:B', onLoadCheckDetails })
+    await act(async () => {
+      await Promise.resolve()
+      await Promise.resolve()
+    })
+    renderChecksList({ checkDetailsContextKey: 'repo:A', onLoadCheckDetails })
+    await act(async () => {
+      await Promise.resolve()
+      await Promise.resolve()
+    })
+
+    expect(requests).toHaveLength(3)
+    await act(async () => {
+      requests[2]!.resolve(checkDetails)
+      await Promise.resolve()
+    })
+    await act(async () => {
+      requests[0]!.reject(new Error('stale request failed'))
+      await Promise.resolve()
+    })
+
+    expect(container.textContent).toContain('Verify failed')
+    expect(container.textContent).not.toContain('stale request failed')
+  })
+
   it('uses resolved details when showing the action-required fallback hint', async () => {
     renderChecksList({
       onLoadCheckDetails: async () => ({
diff --git a/src/renderer/src/components/right-sidebar/checks-panel-content.tsx b/src/renderer/src/components/right-sidebar/checks-panel-content.tsx
index 2b2b695b189..d4fd6ece571 100644
--- a/src/renderer/src/components/right-sidebar/checks-panel-content.tsx
+++ b/src/renderer/src/components/right-sidebar/checks-panel-content.tsx
@@ -88,6 +88,7 @@ import type {
   PRCheckRunDetails,
   PRComment,
   GitHubReactionContent,
+  GitHubRepositoryIdentity,
   PRConflictSummary,
   PRMergeableState
 } from '../../../../shared/types'
@@ -105,6 +106,7 @@ import { useActiveWorktree } from '@/store/selectors'
 import { useAppStore } from '@/store'
 import { sortChecksBySeverity } from '../../../../shared/pr-check-severity-order'
 import { summarizeProviderChecks } from '../../../../shared/provider-check-summary'
+import { createCheckRunDetailsRequestId } from '@/components/editor/check-run-details-tab'
 
 export const PullRequestIcon = GitPullRequest
 
@@ -542,6 +544,7 @@ export function ConflictTriageStrip({
 }
 
 type CheckDetailsLoadState = {
+  requestId?: number
   loading: boolean
   details: PRCheckRunDetails | null
   error: string | null
@@ -673,7 +676,9 @@ function CheckRunDetails({
   checkDetailsContextKey,
   worktreeId,
   detailsStickySurface = 'sidebar',
-  getGitLabProjectRef
+  getGitLabProjectRef,
+  githubRepository,
+  onRetry
 }: {
   check: PRCheckDetail
   state: CheckDetailsLoadState | undefined
@@ -682,6 +687,8 @@ function CheckRunDetails({
   detailsStickySurface?: CheckDetailsStickySurface
   /** Why: a getter, not a value — the source ref is filled by an async fetch and would read stale during render. */
   getGitLabProjectRef?: () => GitLabProjectRef | null
+  githubRepository?: GitHubRepositoryIdentity | null
+  onRetry: () => void
 }): React.JSX.Element {
   const openCheckRunDetails = useAppStore((s) => s.openCheckRunDetails)
   const details = state?.details
@@ -718,9 +725,11 @@ function CheckRunDetails({
       return
     }
     openCheckRunDetails(worktreeId, checkDetailsContextKey, check, {
+      requestId: state?.requestId,
       details: state?.details ?? null,
       loading: state?.loading ?? false,
       error: state?.error ?? null,
+      githubRepository: githubRepository ?? null,
       gitlabProjectRef: getGitLabProjectRef?.() ?? null
     })
   }
@@ -748,7 +757,7 @@ function CheckRunDetails({
         </div>
       )}
       {state?.loading ? (
-        <div className="flex min-w-0 flex-col gap-2 py-1.5">
+        <div role="status" aria-live="polite" className="flex min-w-0 flex-col gap-2 py-1.5">
           <div className="flex items-center gap-2 text-[12px] text-muted-foreground">
             <LoaderCircle className="size-3.5 animate-spin" />
             {translate(
@@ -805,7 +814,26 @@ function CheckRunDetails({
             )}
           </div>
 
-          {state?.error && <div className="text-[12px] text-muted-foreground">{state.error}</div>}
+          {state?.error && (
+            <div role="alert" className="flex items-center justify-between gap-2">
+              <span className="min-w-0 flex-1 break-words text-[12px] text-destructive">
+                {state.error}
+              </span>
+              <Button
+                type="button"
+                variant="outline"
+                size="xs"
+                className="shrink-0"
+                onClick={onRetry}
+              >
+                <RefreshCw className="size-3" />
+                {translate(
+                  'auto.components.right.sidebar.checks.panel.content.retryCheckDetails',
+                  'Retry'
+                )}
+              </Button>
+            </div>
+          )}
 
           {hasOutput && (
             <div className="min-w-0">
@@ -973,7 +1001,8 @@ export function ChecksList({
   onLoadCheckDetails,
   worktreeId: worktreeIdOverride,
   detailsStickySurface = 'sidebar',
-  getGitLabProjectRef
+  getGitLabProjectRef,
+  githubRepository
 }: {
   checks: PRCheckDetail[]
   checksLoading: boolean
@@ -984,6 +1013,7 @@ export function ChecksList({
   detailsStickySurface?: CheckDetailsStickySurface
   /** Why: a getter, not a value — the source ref is filled by an async fetch and would read stale during render. */
   getGitLabProjectRef?: () => GitLabProjectRef | null
+  githubRepository?: GitHubRepositoryIdentity | null
 }): React.JSX.Element {
   const activeWorktree = useActiveWorktree()
   const resolvedWorktreeId = worktreeIdOverride ?? activeWorktree?.id ?? null
@@ -1112,55 +1142,113 @@ export function ChecksList({
         return
       }
       const requestContextKey = checkDetailsContextKey
+      const requestId = createCheckRunDetailsRequestId()
       setDetailsByCheckKey((current) => ({
         ...current,
-        [row.key]: { loading: true, details: null, error: null }
+        [row.key]: { requestId, loading: true, details: null, error: null }
       }))
-      void onLoadCheckDetails(row.check)
+      if (resolvedWorktreeId) {
+        patchOpenCheckRunDetails(resolvedWorktreeId, requestContextKey, row.check, {
+          requestId,
+          details: null,
+          loading: true,
+          error: null,
+          githubRepository: githubRepository ?? null,
+          gitlabProjectRef: getGitLabProjectRef?.() ?? null
+        })
+      }
+      const request = Promise.resolve().then(() => onLoadCheckDetails(row.check))
+      void request
         .then((details) => {
-          if (detailsContextRef.current !== requestContextKey) {
-            return
-          }
-          setDetailsByCheckKey((current) => ({
-            ...current,
-            [row.key]: {
-              loading: false,
+          if (resolvedWorktreeId) {
+            patchOpenCheckRunDetails(resolvedWorktreeId, requestContextKey, row.check, {
+              requestId,
               details,
+              loading: false,
               error: details
                 ? null
                 : translate(
                     'auto.components.right.sidebar.checks.panel.content.e15a8b77ef',
                     'No inline details are available for this check.'
                   ),
-              // Why: a detail-less result is only final for this status — re-arm the retry once the job moves on.
-              errorAt: details
-                ? undefined
-                : { status: row.check.status, conclusion: row.check.conclusion }
-            }
-          }))
-        })
-        .catch((err) => {
+              githubRepository: githubRepository ?? null,
+              gitlabProjectRef: getGitLabProjectRef?.() ?? null
+            })
+          }
           if (detailsContextRef.current !== requestContextKey) {
             return
           }
-          setDetailsByCheckKey((current) => ({
-            ...current,
-            [row.key]: {
-              loading: false,
-              details: null,
-              error:
-                err instanceof Error
-                  ? err.message
-                  : translate(
-                      'auto.components.right.sidebar.checks.panel.content.checkDetailsLoadFailed',
-                      'Failed to load check details.'
-                    ),
-              errorAt: { status: row.check.status, conclusion: row.check.conclusion }
+          setDetailsByCheckKey((current) => {
+            if (current[row.key]?.requestId !== requestId) {
+              return current
             }
-          }))
+            return {
+              ...current,
+              [row.key]: {
+                requestId,
+                loading: false,
+                details,
+                error: details
+                  ? null
+                  : translate(
+                      'auto.components.right.sidebar.checks.panel.content.e15a8b77ef',
+                      'No inline details are available for this check.'
+                    ),
+                // Why: a detail-less result is only final for this status — re-arm the retry once the job moves on.
+                errorAt: details
+                  ? undefined
+                  : { status: row.check.status, conclusion: row.check.conclusion }
+              }
+            }
+          })
+        })
+        .catch((err) => {
+          const error =
+            err instanceof Error
+              ? err.message
+              : translate(
+                  'auto.components.right.sidebar.checks.panel.content.checkDetailsLoadFailed',
+                  'Failed to load check details.'
+                )
+          if (resolvedWorktreeId) {
+            patchOpenCheckRunDetails(resolvedWorktreeId, requestContextKey, row.check, {
+              requestId,
+              details: null,
+              loading: false,
+              error,
+              githubRepository: githubRepository ?? null,
+              gitlabProjectRef: getGitLabProjectRef?.() ?? null
+            })
+          }
+          if (detailsContextRef.current !== requestContextKey) {
+            return
+          }
+          setDetailsByCheckKey((current) => {
+            if (current[row.key]?.requestId !== requestId) {
+              return current
+            }
+            return {
+              ...current,
+              [row.key]: {
+                requestId,
+                loading: false,
+                details: null,
+                error,
+                errorAt: { status: row.check.status, conclusion: row.check.conclusion }
+              }
+            }
+          })
         })
     },
-    [checkDetailsContextKey, detailsByCheckKey, onLoadCheckDetails]
+    [
+      checkDetailsContextKey,
+      detailsByCheckKey,
+      getGitLabProjectRef,
+      githubRepository,
+      onLoadCheckDetails,
+      patchOpenCheckRunDetails,
+      resolvedWorktreeId
+    ]
   )
 
   useEffect(() => {
@@ -1184,9 +1272,11 @@ export function ChecksList({
         continue
       }
       patchOpenCheckRunDetails(resolvedWorktreeId, checkDetailsContextKey, row.check, {
+        requestId: detailsState.requestId,
         details: detailsState.details ?? null,
         loading: detailsState.loading ?? false,
         error: detailsState.error ?? null,
+        githubRepository: githubRepository ?? null,
         gitlabProjectRef: getGitLabProjectRef?.() ?? null
       })
     }
@@ -1194,6 +1284,7 @@ export function ChecksList({
     checkDetailsContextKey,
     detailsByCheckKey,
     getGitLabProjectRef,
+    githubRepository,
     patchOpenCheckRunDetails,
     resolvedWorktreeId,
     rows
@@ -1370,6 +1461,8 @@ export function ChecksList({
                       worktreeId={resolvedWorktreeId}
                       detailsStickySurface={detailsStickySurface}
                       getGitLabProjectRef={getGitLabProjectRef}
+                      githubRepository={githubRepository}
+                      onRetry={() => requestCheckDetails(row)}
                     />
                   )}
                 </div>
diff --git a/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.test.ts b/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.test.ts
index 2b9e5dcbe33..9cf77aa2565 100644
--- a/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.test.ts
+++ b/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.test.ts
@@ -126,7 +126,8 @@ describe('parent PR checks refresh', () => {
       worktrees: [unlinked, linked],
       repos: [repo]
     })
-    const fetchHostedReviewForBranch = vi.fn(async () => makeReview())
+    const githubRepository = { owner: 'upstream', repo: 'project' }
+    const fetchHostedReviewForBranch = vi.fn(async () => makeReview({ githubRepository }))
     const fetchPRChecks = vi.fn(async () => [])
 
     await runLimitedParentPrChecksRefreshes({
@@ -151,7 +152,7 @@ describe('parent PR checks refresh', () => {
         staleWhileRevalidate: true
       }
     ])
-    expect(fetchPRChecks).toHaveBeenCalledWith('/repo', 7, 'feature', 'abc123', null, {
+    expect(fetchPRChecks).toHaveBeenCalledWith('/repo', 7, 'feature', 'abc123', githubRepository, {
       repoId: 'repo-1',
       force: false
     })
diff --git a/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.ts b/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.ts
index 3d5ea1bbc8b..2404950b422 100644
--- a/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.ts
+++ b/src/renderer/src/components/right-sidebar/parent-pr-checks-refresh.ts
@@ -151,7 +151,7 @@ async function refreshParentPrChecksCandidate(
         review.number,
         candidate.branch,
         review.headSha,
-        null,
+        review.githubRepository ?? null,
         { repoId: candidate.repo.id, force }
       )
     }
diff --git a/src/renderer/src/components/right-sidebar/parent-pr-checks-row-types.ts b/src/renderer/src/components/right-sidebar/parent-pr-checks-row-types.ts
index 9e6f3c2f784..18fc4459da6 100644
--- a/src/renderer/src/components/right-sidebar/parent-pr-checks-row-types.ts
+++ b/src/renderer/src/components/right-sidebar/parent-pr-checks-row-types.ts
@@ -1,4 +1,11 @@
-import type { CheckStatus, PRCheckDetail, PRInfo, Repo, Worktree } from '../../../../shared/types'
+import type {
+  CheckStatus,
+  GitHubRepositoryIdentity,
+  PRCheckDetail,
+  PRInfo,
+  Repo,
+  Worktree
+} from '../../../../shared/types'
 import type { HostedReviewInfo } from '../../../../shared/hosted-review'
 import type { AppState } from '@/store'
 import { translate } from '@/i18n/i18n'
@@ -59,6 +66,7 @@ export type ParentPrChecksRow = {
   reviewState: HostedReviewInfo['state'] | null
   reviewStatus: HostedReviewInfo['status'] | null
   provider: HostedReviewInfo['provider'] | null
+  githubRepository?: GitHubRepositoryIdentity | null
   summary: string
   detailNames: string[]
   checks: PRCheckDetail[]
diff --git a/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.test.ts b/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.test.ts
index d261df5851e..c9e2ebc18cc 100644
--- a/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.test.ts
+++ b/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.test.ts
@@ -590,7 +590,8 @@ describe('buildParentPrChecksProjection', () => {
   it('reads scoped GitHub checks detail names without using details as aggregate truth', () => {
     const repo = makeRepo({ connectionId: 'ssh-1' })
     const worktree = makeWorktree({ id: 'repo-1::/feature' })
-    const review = makeReview({ status: 'failure', headSha: 'abc123' })
+    const githubRepository = { owner: 'upstream', repo: 'project' }
+    const review = makeReview({ status: 'failure', headSha: 'abc123', githubRepository })
     const hostedKey = getHostedReviewCacheKey(
       repo.path,
       'feature',
@@ -601,7 +602,7 @@ describe('buildParentPrChecksProjection', () => {
     const checksKey = getGitHubRepoCacheKey(
       repo.path,
       repo.id,
-      prChecksCacheSuffix(12, null, 'abc123'),
+      prChecksCacheSuffix(12, githubRepository, 'abc123'),
       settings,
       repo.connectionId
     )
@@ -628,6 +629,7 @@ describe('buildParentPrChecksProjection', () => {
 
     expect(projection.rows[0]?.detailNames).toEqual(['build'])
     expect(projection.rows[0]?.status).toBe('failing')
+    expect(projection.rows[0]?.githubRepository).toEqual(githubRepository)
   })
 
   it('prioritizes action-required check detail names before truncating the preview', () => {
diff --git a/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.ts b/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.ts
index 6330c3bbee9..72f4ab921bc 100644
--- a/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.ts
+++ b/src/renderer/src/components/right-sidebar/parent-pr-checks-rows.ts
@@ -147,6 +147,7 @@ function buildParentPrChecksRow(
     reviewState: review?.state ?? fallbackDisplay?.state ?? null,
     reviewStatus: review?.status ?? fallbackDisplay?.status ?? null,
     provider: review?.provider ?? fallbackDisplay?.provider ?? null,
+    githubRepository: review?.provider === 'github' ? (review.githubRepository ?? null) : null,
     summary: getRowSummary(status, review, detailNames),
     detailNames,
     checks: checkDetails,
@@ -251,7 +252,7 @@ function getGitHubChecksEntry(
   args: ParentPrChecksRowSourceArgs & { repo: Repo },
   review: HostedReviewInfo
 ): ParentPrChecksCacheEntry<PRCheckDetail[]> | undefined {
-  const prRepo = null
+  const prRepo = review.githubRepository ?? null
   const withHead = getGitHubRepoCacheKey(
     args.repo.path,
     args.repo.id,
diff --git a/src/renderer/src/i18n/locales/en.json b/src/renderer/src/i18n/locales/en.json
index 1aaead6e8f0..f36d61e25ff 100644
--- a/src/renderer/src/i18n/locales/en.json
+++ b/src/renderer/src/i18n/locales/en.json
@@ -251,7 +251,8 @@
           "51f15c37d3": "Cannot open directory: {{value0}}",
           "f2e00db373": "File not found: {{value0}}",
           "checkRunDetailsUnavailable": "No details are available for this check.",
-          "checkRunDetailsLoadFailed": "Failed to load check details."
+          "checkRunDetailsLoadFailed": "Failed to load check details.",
+          "checkRunDetailsRepoUnavailable": "Repository details are unavailable for this check."
         },
         "github": {
           "f129c42773": "GitHub did not return the new comment.",
@@ -11129,6 +11130,7 @@
                 "checksUnresolvedChip": "unresolved",
                 "checksUnresolvedStripHint": "These checks finished without a pass or fail verdict.",
                 "e15a8b77ef": "No inline details are available for this check.",
+                "retryCheckDetails": "Retry",
                 "679bf2093c": "Copy log excerpt",
                 "d713f500b2": "Log excerpt",
                 "a916648574": "Open details",
@@ -15126,6 +15128,9 @@
         "loadFailed": "Failed to load the GitLab job log.",
         "emptyTrace": "No log is available for this GitLab job.",
         "timedOut": "Timed out loading the GitLab job log."
+      },
+      "githubCheckDetailsTimeout": {
+        "timedOut": "Timed out loading check details."
       }
     },
     "ssh": {
diff --git a/src/renderer/src/runtime/github-check-details-timeout.test.ts b/src/renderer/src/runtime/github-check-details-timeout.test.ts
new file mode 100644
index 00000000000..1031331ca55
--- /dev/null
+++ b/src/renderer/src/runtime/github-check-details-timeout.test.ts
@@ -0,0 +1,33 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import {
+  GITHUB_CHECK_DETAILS_TIMEOUT_MS,
+  withGitHubCheckDetailsTimeout
+} from './github-check-details-timeout'
+
+vi.mock('@/i18n/i18n', () => ({
+  translate: (_key: string, fallback: string) => fallback
+}))
+
+describe('withGitHubCheckDetailsTimeout', () => {
+  beforeEach(() => {
+    vi.useFakeTimers()
+  })
+
+  afterEach(() => {
+    vi.useRealTimers()
+  })
+
+  it('passes through a result and clears its deadline', async () => {
+    await expect(withGitHubCheckDetailsTimeout(Promise.resolve('details'))).resolves.toBe('details')
+    expect(vi.getTimerCount()).toBe(0)
+  })
+
+  it('rejects a stalled local request after the remote RPC budget', async () => {
+    const stalled = withGitHubCheckDetailsTimeout(new Promise(() => {}))
+    const assertion = expect(stalled).rejects.toThrow('Timed out loading check details.')
+
+    await vi.advanceTimersByTimeAsync(GITHUB_CHECK_DETAILS_TIMEOUT_MS)
+
+    await assertion
+  })
+})
diff --git a/src/renderer/src/runtime/github-check-details-timeout.ts b/src/renderer/src/runtime/github-check-details-timeout.ts
new file mode 100644
index 00000000000..9e077fb995c
--- /dev/null
+++ b/src/renderer/src/runtime/github-check-details-timeout.ts
@@ -0,0 +1,25 @@
+import { translate } from '@/i18n/i18n'
+
+export const GITHUB_CHECK_DETAILS_TIMEOUT_MS = 30_000
+
+/** Bound local IPC the same way runtime RPC bounds remote check-detail requests. */
+export async function withGitHubCheckDetailsTimeout<T>(pending: Promise<T>): Promise<T> {
+  let timer: ReturnType<typeof setTimeout> | undefined
+  const timeout = new Promise<never>((_, reject) => {
+    timer = setTimeout(() => {
+      reject(
+        new Error(
+          translate(
+            'auto.runtime.githubCheckDetailsTimeout.timedOut',
+            'Timed out loading check details.'
+          )
+        )
+      )
+    }, GITHUB_CHECK_DETAILS_TIMEOUT_MS)
+  })
+  try {
+    return await Promise.race([pending, timeout])
+  } finally {
+    clearTimeout(timer)
+  }
+}
diff --git a/src/renderer/src/store/slices/editor.test.ts b/src/renderer/src/store/slices/editor.test.ts
index 8b87ee976c7..c02b660e8d1 100644
--- a/src/renderer/src/store/slices/editor.test.ts
+++ b/src/renderer/src/store/slices/editor.test.ts
@@ -3080,18 +3080,24 @@ describe('createEditorSlice conflict status reconciliation', () => {
       url: null,
       checkRunId: 42
     }
+    const githubRepository = { owner: 'upstream', repo: 'project' }
 
     store.getState().openCheckRunDetails('wt-1', 'repo:99', check, {
       details: null,
       loading: false,
-      error: null
+      error: null,
+      githubRepository
     })
 
     await store.getState().reloadOpenCheckRunDetailsTab('wt-1::check-details::check-run:42')
 
     expect(fetchPRCheckDetails).toHaveBeenCalledWith(
       '/repo',
-      expect.objectContaining({ checkRunId: 42, checkName: 'verify' }),
+      expect.objectContaining({
+        checkRunId: 42,
+        checkName: 'verify',
+        prRepo: githubRepository
+      }),
       { repoId: 'repo-1' }
     )
     expect(store.getState().openFiles).toContainEqual(
@@ -3105,6 +3111,41 @@ describe('createEditorSlice conflict status reconciliation', () => {
     )
   })
 
+  it('stops loading when an open check-details tab loses its repository', async () => {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const store = createStore<any>()((...args: any[]) => ({
+      activeWorktreeId: 'wt-1',
+      repos: [],
+      worktreesByRepo: {},
+      fetchPRCheckDetails: vi.fn(),
+      ...createEditorSlice(...(args as Parameters<typeof createEditorSlice>))
+    })) as unknown as StoreApi<AppState>
+    const check = {
+      name: 'verify',
+      status: 'completed' as const,
+      conclusion: 'failure' as const,
+      url: null,
+      checkRunId: 42
+    }
+
+    store.getState().openCheckRunDetails('wt-1', 'repo:99', check, {
+      details: null,
+      loading: true,
+      error: null
+    })
+    await store.getState().reloadOpenCheckRunDetailsTab('wt-1::check-details::check-run:42')
+
+    expect(store.getState().openFiles).toContainEqual(
+      expect.objectContaining({
+        id: 'wt-1::check-details::check-run:42',
+        checkRunDetails: expect.objectContaining({
+          loading: false,
+          error: 'Repository details are unavailable for this check.'
+        })
+      })
+    )
+  })
+
   // Regression for #7732: refreshing a GitLab job tab through the GitHub check-runs
   // API returns null and blanks the tab the user just asked to reload.
   it('reloads an open GitLab job tab through the job trace client', async () => {
@@ -3304,6 +3345,112 @@ describe('createEditorSlice conflict status reconciliation', () => {
     )
   })
 
+  it('ignores a stale check-details request after the tab context changes', () => {
+    const store = createEditorTabsStore()
+    const check = {
+      name: 'verify',
+      status: 'completed' as const,
+      conclusion: 'failure' as const,
+      url: null,
+      checkRunId: 42
+    }
+
+    store.getState().openCheckRunDetails('wt-1', 'repo:old', check, {
+      details: null,
+      loading: true,
+      error: null
+    })
+    store.getState().openCheckRunDetails('wt-1', 'repo:new', check, {
+      details: null,
+      loading: true,
+      error: null
+    })
+    store.getState().patchOpenCheckRunDetails('wt-1', 'repo:old', check, {
+      details: null,
+      loading: false,
+      error: 'stale request failed'
+    })
+
+    expect(
+      store.getState().openFiles.find((file) => file.id === 'wt-1::check-details::check-run:42')
+        ?.checkRunDetails
+    ).toEqual(
+      expect.objectContaining({ contextKey: 'repo:new', details: null, loading: true, error: null })
+    )
+  })
+
+  it('ignores an older check-details request in the same context', () => {
+    const store = createEditorTabsStore()
+    const check = {
+      name: 'verify',
+      status: 'completed' as const,
+      conclusion: 'failure' as const,
+      url: null,
+      checkRunId: 42
+    }
+
+    store.getState().openCheckRunDetails('wt-1', 'repo:99', check, {
+      requestId: 1,
+      details: null,
+      loading: true,
+      error: null
+    })
+    store.getState().patchOpenCheckRunDetails('wt-1', 'repo:99', check, {
+      requestId: 2,
+      details: null,
+      loading: true,
+      error: null
+    })
+    store.getState().patchOpenCheckRunDetails('wt-1', 'repo:99', check, {
+      requestId: 1,
+      details: null,
+      loading: false,
+      error: 'stale request failed'
+    })
+
+    expect(
+      store.getState().openFiles.find((file) => file.id === 'wt-1::check-details::check-run:42')
+        ?.checkRunDetails
+    ).toEqual(expect.objectContaining({ requestId: 2, details: null, loading: true, error: null }))
+  })
+
+  it('does not reopen a check-details tab with an older sidebar snapshot', () => {
+    const store = createEditorTabsStore()
+    const check = {
+      name: 'verify',
+      status: 'completed' as const,
+      conclusion: 'failure' as const,
+      url: null,
+      checkRunId: 42
+    }
+
+    store.getState().openCheckRunDetails('wt-1', 'repo:99', check, {
+      requestId: 2,
+      details: null,
+      loading: false,
+      error: 'newer result'
+    })
+    store.getState().openFile({
+      filePath: '/repo/other.ts',
+      relativePath: 'other.ts',
+      worktreeId: 'wt-1',
+      language: 'typescript',
+      mode: 'edit'
+    })
+    store.getState().openCheckRunDetails('wt-1', 'repo:99', check, {
+      requestId: 1,
+      details: null,
+      loading: false,
+      error: 'stale result'
+    })
+
+    expect(store.getState().activeFileId).toBe('wt-1::check-details::check-run:42')
+    expect(
+      store.getState().openFiles.find((file) => file.id === 'wt-1::check-details::check-run:42')
+        ?.checkRunDetails
+    ).toEqual(expect.objectContaining({ requestId: 2, error: 'newer result' }))
+  })
+
   it('opens check full details as a center-pane editor tab', () => {
     const store = createEditorTabsStore()
     const check = {
diff --git a/src/renderer/src/store/slices/editor.ts b/src/renderer/src/store/slices/editor.ts
index 971ab20cba6..4eda195dfa2 100644
--- a/src/renderer/src/store/slices/editor.ts
+++ b/src/renderer/src/store/slices/editor.ts
@@ -14,7 +14,9 @@ import { isPathInsideOrEqual } from '../../../../shared/cross-platform-path'
 import { resolveMarkdownLinkTarget } from '@/components/editor/markdown-internal-links'
 import {
   buildCheckRunDetailsTabId,
+  createCheckRunDetailsRequestId,
   getCheckRunDetailsTabLabel,
+  isSameGitHubRepository,
   isSameGitLabProjectRef,
   type CheckRunDetailsTabPatch,
   type OpenCheckRunDetailsState
@@ -3802,14 +3804,21 @@ export const createEditorSlice: StateCreator<AppState, [], [], EditorSlice> = (s
     const checkRunDetails: OpenCheckRunDetailsState = {
       contextKey,
       check,
+      requestId: state.requestId,
       details: state.details,
       loading: state.loading,
       error: state.error,
+      githubRepository: state.githubRepository ?? null,
       gitlabProjectRef: state.gitlabProjectRef ?? null
     }
     set((s) => {
       const existing = s.openFiles.find((f) => f.id === id)
       if (existing) {
+        const existingDetails = existing.checkRunDetails
+        const incomingIsStale =
+          existingDetails?.contextKey === contextKey &&
+          existingDetails.requestId !== undefined &&
+          (state.requestId === undefined || state.requestId < existingDetails.requestId)
         return {
           openFiles: s.openFiles.map((f) =>
             f.id === id
@@ -3818,7 +3827,7 @@ export const createEditorSlice: StateCreator<AppState, [], [], EditorSlice> = (s
                   mode: 'check-details' as const,
                   relativePath: label,
                   language: 'plaintext',
-                  checkRunDetails
+                  checkRunDetails: incomingIsStale ? existingDetails : checkRunDetails
                 }
               : f
           ),
@@ -3860,24 +3869,39 @@ export const createEditorSlice: StateCreator<AppState, [], [], EditorSlice> = (s
         return s
       }
       const current = existing.checkRunDetails
+      if (current.contextKey !== contextKey) {
+        return s
+      }
+      if (
+        state.requestId !== undefined &&
+        current.requestId !== undefined &&
+        state.requestId < current.requestId
+      ) {
+        return s
+      }
       // Why: the sidebar resolves the MR's project asynchronously, so an early patch
       // must not blank a ref we already know.
+      const githubRepository = state.githubRepository ?? current.githubRepository ?? null
       const gitlabProjectRef = state.gitlabProjectRef ?? current.gitlabProjectRef ?? null
       const nextCheckRunDetails: OpenCheckRunDetailsState = {
         contextKey,
         check,
+        requestId: state.requestId ?? current.requestId,
         details: state.details,
         loading: state.loading,
         error: state.error,
+        githubRepository,
         gitlabProjectRef
       }
       if (
         current.contextKey === nextCheckRunDetails.contextKey &&
+        current.requestId === nextCheckRunDetails.requestId &&
         current.check.status === nextCheckRunDetails.check.status &&
         current.check.conclusion === nextCheckRunDetails.check.conclusion &&
         current.loading === nextCheckRunDetails.loading &&
         current.error === nextCheckRunDetails.error &&
         current.details === nextCheckRunDetails.details &&
+        isSameGitHubRepository(current.githubRepository ?? null, githubRepository) &&
         isSameGitLabProjectRef(current.gitlabProjectRef ?? null, gitlabProjectRef)
       ) {
         return s
@@ -3897,16 +3921,25 @@ export const createEditorSlice: StateCreator<AppState, [], [], EditorSlice> = (s
     if (!file || file.mode !== 'check-details' || !checkRunDetails) {
       return
     }
+    const { contextKey, check } = checkRunDetails
+    const requestId = createCheckRunDetailsRequestId()
+    const patch = (next: CheckRunDetailsTabPatch): void => {
+      get().patchOpenCheckRunDetails(file.worktreeId, contextKey, check, { ...next, requestId })
+    }
     const worktree = findWorktreeById(state.worktreesByRepo, file.worktreeId)
     const repoId = worktree?.repoId ?? getRepoIdFromWorktreeId(file.worktreeId)
     const repo = state.repos.find((candidate) => candidate.id === repoId)
     if (!repo?.path) {
+      patch({
+        details: checkRunDetails.details,
+        loading: false,
+        error: translate(
+          'auto.store.slices.editor.checkRunDetailsRepoUnavailable',
+          'Repository details are unavailable for this check.'
+        )
+      })
       return
     }
-    const { contextKey, check } = checkRunDetails
-    const patch = (next: CheckRunDetailsTabPatch): void => {
-      get().patchOpenCheckRunDetails(file.worktreeId, contextKey, check, next)
-    }
     patch({ details: checkRunDetails.details, loading: true, error: null })
     try {
       // Why: refreshing a GitLab job tab through the GitHub check-runs API returns
@@ -3927,7 +3960,7 @@ export const createEditorSlice: StateCreator<AppState, [], [], EditorSlice> = (s
               workflowRunId: check.workflowRunId,
               checkName: check.name,
               url: check.url,
-              prRepo: null
+              prRepo: checkRunDetails.githubRepository ?? null
             },
             { repoId: repo.id }
           )
diff --git a/src/renderer/src/store/slices/github.ts b/src/renderer/src/store/slices/github.ts
index 21b66f2e9bd..012df2ea2b7 100644
--- a/src/renderer/src/store/slices/github.ts
+++ b/src/renderer/src/store/slices/github.ts
@@ -76,6 +76,7 @@ import {
 } from '../../../../shared/task-source-context'
 import { normalizeGitHubPRForBranchOutcome } from '../../../../shared/github-pr-for-branch-outcome'
 import { restoreReactionOnSubject, setReactionOnSubject } from '@/lib/pr-comment-reactions'
+import { withGitHubCheckDetailsTimeout } from '@/runtime/github-check-details-timeout'
 
 // ─── ProjectV2 cache types ────────────────────────────────────────────
 // Why: separate from CacheEntry<T> — project-view has a single GraphQL source (no issue/PR fallback) and a distinct error union.
@@ -3588,16 +3589,18 @@ export const createGitHubSlice: StateCreator<AppState, [], [], GitHubSlice> = (s
           },
           { timeoutMs: 30_000 }
         )
-      : ((await window.api.gh.prCheckDetails({
-          repoPath,
-          repoId,
-          checkRunId: args.checkRunId,
-          workflowRunId: args.workflowRunId,
-          checkName: args.checkName,
-          url: args.url,
-          prRepo: args.prRepo ?? null,
-          sourceContext: options?.sourceContext
-        })) as PRCheckRunDetails | null)
+      : await withGitHubCheckDetailsTimeout(
+          window.api.gh.prCheckDetails({
+            repoPath,
+            repoId,
+            checkRunId: args.checkRunId,
+            workflowRunId: args.workflowRunId,
+            checkName: args.checkName,
+            url: args.url,
+            prRepo: args.prRepo ?? null,
+            sourceContext: options?.sourceContext
+          })
+        )
   },
 
   fetchPRComments: async (repoPath, prNumber, options): Promise<PRComment[]> => {
diff --git a/src/shared/hosted-review-github.test.ts b/src/shared/hosted-review-github.test.ts
index 640a87016b5..6aadaced3f2 100644
--- a/src/shared/hosted-review-github.test.ts
+++ b/src/shared/hosted-review-github.test.ts
@@ -122,7 +122,8 @@ describe('hostedReviewSummaryFromGitHubPRInfo', () => {
   })
 
   it('maps PRInfo into sidebar hosted review metadata', () => {
-    const review = hostedReviewInfoFromGitHubPRInfo(pr)
+    const githubRepository = { owner: 'upstream', repo: 'orca' }
+    const review = hostedReviewInfoFromGitHubPRInfo({ ...pr, prRepo: githubRepository })
 
     expect(review).toMatchObject({
       provider: 'github',
@@ -131,7 +132,8 @@ describe('hostedReviewSummaryFromGitHubPRInfo', () => {
       state: 'open',
       status: 'pending',
       mergeable: 'MERGEABLE',
-      headSha: 'abc123'
+      headSha: 'abc123',
+      githubRepository
     })
   })
 })
diff --git a/src/shared/hosted-review-github.ts b/src/shared/hosted-review-github.ts
index 6fc90a39aaf..f5aa5905b45 100644
--- a/src/shared/hosted-review-github.ts
+++ b/src/shared/hosted-review-github.ts
@@ -98,6 +98,7 @@ export function hostedReviewInfoFromGitHubPRInfo(pr: PRInfo): HostedReviewInfo {
     ...(pr.mergeQueueRequired !== undefined ? { mergeQueueRequired: pr.mergeQueueRequired } : {}),
     ...(pr.mergeStateStatus !== undefined ? { mergeStateStatus: pr.mergeStateStatus } : {}),
     ...(pr.headSha ? { headSha: pr.headSha } : {}),
+    ...(pr.prRepo ? { githubRepository: pr.prRepo } : {}),
     ...(pr.confirmedContainedHeadOid
       ? { confirmedContainedHeadOid: pr.confirmedContainedHeadOid }
       : {}),
diff --git a/src/shared/hosted-review.ts b/src/shared/hosted-review.ts
index 90a97d0afb9..6a8685cbc81 100644
--- a/src/shared/hosted-review.ts
+++ b/src/shared/hosted-review.ts
@@ -1,4 +1,10 @@
-import type { CheckStatus, PRConflictSummary, PRMergeableState, PRReviewDecision } from './types'
+import type {
+  CheckStatus,
+  GitHubRepositoryIdentity,
+  PRConflictSummary,
+  PRMergeableState,
+  PRReviewDecision
+} from './types'
 
 export type HostedReviewProvider =
   | 'github'
@@ -30,6 +36,8 @@ export type HostedReviewInfo = {
   mergeQueueRequired?: boolean | null
   mergeStateStatus?: string | null
   headSha?: string
+  /** GitHub repository that owns the PR; absent on older runtimes and other providers. */
+  githubRepository?: GitHubRepositoryIdentity
   // Why: mirrors PRInfo.confirmedContainedHeadOid so merged-review staleness
   // checks accept a worktree head confirmed to be part of the merged PR.
   confirmedContainedHeadOid?: string