[incognitojam]

Merged pull requests showed source-branch checks, so a successful PR result could obscure a failure on the resulting commit.

GitHub's resulting commit SHA is read after merging. In Checks, a Merge commit / Pull request switch selects the commit and its own results, using the same list for both. The merge result is the default, and the existing checks-status control opens it directly. Summary keeps its review overview. Commit and check links retain their exact targets, and merged views refresh as checks run. Missing commits, unreadable or incomplete checks, and no reported checks stay distinct; unnamed contexts cannot produce a false passing result.

Verification:

• In the running web app, opened the public upstream PR 24602, switched between the resulting and source SHAs, and observed their different results in the same list. Returning through the Summary checks-status control selected the merge result.
• Browser interaction tests exercise switching, scope-specific rows/SHAs/links, pending-to-failed updates, unavailable and empty results, and unsupported hosts. Summary and existing checklist behavior are also covered.
• Focused API and service scenarios cover merge/squash/rebase SHA selection, successful source checks with failing merge checks, unchanged PR timestamps, pagination/read errors and unnamed contexts. The earlier Android pass exercised its separate expandable check groups.

Separate Electron, iOS and relay/tunnel runs were not performed.

Before

After

---

Written by an agent (Codex, gpt-6.1-sol).

[github-actions]

Upstream divergence

Both sides are compared with upstream at the in-order tip 3982f20ce4. Excludes .repos/ and pnpm-lock.yaml.

Measure	Base	This PR	Change
Upstream files the fork changes	1,683	1,683	0
Lines changed in them	91,598	92,394	+796
Upstream files the fork removes	49	49	0
Fork-only files	661	667	+6
Fork-only lines	118,803	119,488	+685

Upstream files whose difference changes (20)

File	Change	Now differs by
packages/source-control-github/src/server/pullRequestReads.graphql.ts	+213	944 lines
packages/source-control-github/src/server/GitHubPullRequestApi.test.ts	+160	1,917 lines
packages/source-control-github/src/server/GitHubPullRequestApi.ts	+75	919 lines
apps/mobile/src/features/pull-requests/PullRequestStatusRows.tsx	+72	83 lines
apps/server/src/pullRequest/PullRequestService.test.ts	+60	601 lines
apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx	+43	431 lines
packages/source-control-github/src/server/pullRequestReads.graphql	+39	491 lines
apps/web/src/components/pullRequest/PullRequestTimelineTab.tsx	+26	56 lines
packages/source-control-github/src/server/gitHubPullRequestJson.ts	+20	457 lines
packages/contracts/src/pullRequest.test.ts	+18	33 lines
apps/web/src/components/pullRequest/pullRequestDetail.logic.test.ts	+17	101 lines
apps/web/src/components/pullRequest/pullRequestDetail.logic.ts	+11	43 lines
packages/contracts/src/pullRequest.ts	+11	116 lines
apps/web/src/components/pullRequest/PullRequestSummaryTab.tsx	+9	101 lines
docs/user/source-control.md	+7	95 lines
apps/mobile/src/features/pull-requests/PullRequestRouteScreen.tsx	+4	17 lines
packages/client-runtime/package.json	+4	44 lines
apps/server/src/pullRequest/PullRequestService.ts	+3	251 lines
docs/user/telemetry.md	+2	110 lines
packages/source-control-core/src/server/PullRequestProvider.ts	+2	84 lines

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

ℹ️ The exact PR base did not have a successful artifact. Baseline uses the latest successful main measurement shown below.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	5.0 KiB	4.9 KiB	−30 B (−0.6%)	6.8 KiB	✅
Codex	Thread snapshot wire	3.8 KiB	3.8 KiB	0 B (0.0%)	4.9 KiB	✅
Codex	Live turn WebSocket wire	1.2 KiB	1.2 KiB	−30 B (−2.5%)	2.0 KiB	✅
Codex	Live turn WebSocket decoded	20.9 KiB	20.8 KiB	−41 B (−0.2%)	29.3 KiB	✅
Codex	Live turn messages	2	1	−1 (−50.0%)	8	✅
Claude	Total thread wire	5.0 KiB	5.0 KiB	0 B (0.0%)	6.8 KiB	✅
Claude	Thread snapshot wire	3.8 KiB	3.8 KiB	0 B (0.0%)	4.9 KiB	✅
Claude	Live turn WebSocket wire	1.2 KiB	1.2 KiB	0 B (0.0%)	2.0 KiB	✅
Claude	Live turn WebSocket decoded	21.2 KiB	21.2 KiB	0 B (0.0%)	29.3 KiB	✅
Claude	Live turn messages	2	2	0 (0.0%)	8	✅

Baseline: 8fa205a · PR result: dbdacec · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 108.5 KiB
• Claude decoded thread snapshot: 108.8 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.