[teamleaderleo]

Stacked follow-up to #25654 for the first Cmd-N after a cold/update layout.

When the sidebar projection is stale and the current workspace row has not been realized, afterCurrent now keeps the placement pending and draws no temporary bottom frame. Once the fresh sidebar pass realizes the anchor, the pending create is retried and inserted immediately after the current workspace. The default rule captures the current machine so omission on another machine does not defer unrelated placement.

Changelog

• Fixed the first Cmd-N after update/cold layout so its row appears directly after the current workspace without a bottom frame.

Validation

• Red regression (pre-fix SHA 9578cd596c0d192ee8db1dcbf0858bda5a6466e5): cmux-ci step 7a6e1ad7a7a0184eefcb9128 (running; expected failure).
• Prior managed baseline step 4934f43cdecc4be8a49466a4 on 8129deaa308961fdaaad663f30802e2152348c7b: suite passed, showing the original integration test did not catch the stale empty projection.
• Swift syntax gate against cmux NEXT: keep the first Cmd-N workspace in its slot #25654: passed.
• Full static gate: blocked by existing localization debt (45,715 parity errors; no localization files changed here).
• Green focused suite will run on the final fix head after the red receipt is terminal.

No changes to Lawrence #21914 or Austin #23071. No visual styling or motion changes; matched the Codex quiet sidebar reference (apps/codex/live/sidebar-active-work-projects-recents.png, Sidebar-Look: no visual change). #25654 still has no usable NIGHTLY display-rate recording; this regression uses an explicit stale-projection state.

No capture: this changes when a new workspace's row is placed on a cold launch, not how anything looks; ColdCmdNRowSlotTests records every drawn sidebar frame and checks the new row sits right after the current one in each.

Agent session: agent session

[teamleaderleo]

Review (codex gpt-6-astra high, next-review): BLOCK at 290df63

• [P2] Packages/macOS/CmuxNext/Sources/CmuxNextApp/Windows/NewWorkspaceDefaultSlot.swift:42–47: A current workspace pinned in the sidebar band is intentionally absent from sections. This predicate mistakes that absence for a stale layout, suppressing the new workspace’s stand-in and leaving its placement and completion callback pending indefinitely while the anchor remains pinned. Preserve the documented top fallback for pinned workspaces; defer only anchors expected to appear in the row list.

[teamleaderleo]

Owned by an agent session · session

[github-actions]

cmux status _{(one comment, edited in place; each line is updated by the job that owns it)}

Review ba200c3: HQ feed card · gallery before/after runs · checks

App of this head (app.zip, kept 1 day)

gh workflow run reload-build.yml -R manaflow-ai/cmux --ref feat-cmux-next -f tag=pr27014 -f ref=codex/cmdn-cold-followup -f platform=macos -f backend_mode=local

Not verified: macOS jobs did not run: compile and app tests were skipped on 75a3832274; ci-status is green without them.

CI passes on 75a3832274 (run 41145201665 attempt 2).
macOS jobs did not run: compile and app tests were skipped: Fast static checks skipped (the macos job needs both to succeed). Re-run CI once they pass, before merging.

Written by scripts/ci/classify_failures.py (ci-failure-attribution.yml); signatures are its SIGNATURES table. A machine verdict is the runner's fault, not this PR's; yours means the failing file is one this PR changes, also red on main that main's latest full suite fails the same way, seen on other PRs that it failed on another pull request's run lately.

web and size checks: green

Default changes

This pull request changes 2 defaults at 75a3832274a3 (what everyone gets without configuring anything):

• tunable-source.CmuxNextApp/Windows/NewWorkspaceDefaultSlot.swift:rule: "b11fd37b056c64ae11b89e0ad147ef5e0a4d519cd23cc12916a0afe5c02e3cb2" -> "01cd762676ba0dfbf816c76299051a9b85ed40d8f6f19a8b1e6cb9452dd9e3e5"
• tunable-source.CmuxNextApp/Windows/NewWorkspaceDefaultSlot.swift:shownInBand: (none) -> "f6ae04b2fa867c42239acbf81639f8624af914c3af18665a4bf3322b40e59d3d"

Signed off on this commit by review (codex gpt-6.1-sol high, review-router).

Merge receipt: merged as 58af48e51d89 with these defaults changed, signed off by review (codex gpt-6.1-sol high, review-router).

Regenerate the snapshot with python3 scripts/ci/defaults_guard.py snapshot.

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.4115843934401 (8b3fa55ef5)
• cmux NEXT nightly 1.0.0-nightly.4115962701801 (631d310eb9)

[blacksmith-sh]

Found 5 test failures on Blacksmith runners:

Failures

Test	View Logs
main.DeveloperIdAppTests.test_download_prints_the_active_profile_only/ test_download_prints_the_active_profile_only	View Logs
stubs: /System/Library/Frameworks/Security.framework/Versions/A/Security has no stub/ Security has no stub	View Logs
stubs: CoreFoundation.tbd: install-name /System/Library/Frameworks/ CoreFoundation.framework/Versions/A/CoreFoundation, missing 1: ['_CFRetain']/ CoreFoundation, missing 1: ['_CFRetain']	View Logs
stubs: CoreFoundation.tbd: install-name /System/Library/Frameworks/ CoreFoundation.framework/Versions/A/CoreFoundation, missing 1: ['_log2']/ CoreFoundation, missing 1: ['_log2']	View Logs
test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)/ test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)	View Logs

^{Need help on this PR? Tag @codesmith-bot with what you need.}

[teamleaderleo]

Review (codex gpt-6-astra high, next-review): BLOCK at a0211a5

• NewWorkspaceDefaultSlot.swift:42-46 — awaitsCurrentAnchor treats every missing same-machine current row as a transient cold projection. Top-level pinned/top-band (and custom-band) workspace rows are intentionally removed from the machine SidebarRowSections, so afterCurrent for a currently pinned workspace always returns true. PendingWorkspaceRows.adding suppresses the stand-in, while WindowManager+Placement.swift:35-36 keeps the placement pending forever; the new workspace remains at the daemon’s default position and any then callback never runs. The check must distinguish intentionally hidden anchors from stale projections.

[cursor]

Bugbot needs on-demand usage enabled

Bugbot uses usage-based billing for this team and requires on-demand usage to be enabled.

A team admin can enable on-demand usage in the Cursor dashboard.

[teamleaderleo]

Review (codex gpt-6.1-sol high, review-router): SHIP at a154472. No P1/P2 findings. Fixes the two P2s of the d199d41 review with red tests at 393195c: freshness of the cold layout is now per window (each window records the projection its rows were built from), and a placement waits only when this window lists the current workspace, bounded at 3 s. Fleet at this head: ColdCmdNWindowRowsTests, NewWorkspaceBandRoomTests, PlacementStaleRowsTests, ChiefWorkspaceRowsTests pass; ColdCmdNRowSlotTests fails only firstColdCmdNWithRestoredFollowingRowsStaysAfterCurrent, which fails the same way on base 7a70781.

[teamleaderleo]

Review (codex gpt-6.1-sol high, review-router): SHIP at ba200c3. No P1/P2 findings. Since the a154472 SHIP: a base merge (one conflict in SidebarBridge+Intents.swift resync, both sides kept) and the fix for the a4bd66e review P2 (a placement waiting on its anchor whose workspace closes is dropped), red test at 273f097. Fleet at this head: ColdCmdNWindowRowsTests, NewWorkspaceBandRoomTests, PlacementStaleRowsTests, ChiefWorkspaceRowsTests, ColdCmdNRowSlotTests all pass.

[teamleaderleo]

Review (codex gpt-6.1-sol high, review-router): SHIP at 378f4e0

[teamleaderleo]

Review (codex gpt-6.1-sol high, review-router): SHIP at 75a3832

No P1/P2 findings on the full diff from base d9461de (head is a clean base merge onto 378f4e0).