[teamleaderleo]

Base red: cmux-next crash-class rules fails on every PR (e.g. #24025, #24327) with "probe needed" for super.firstBaselineOffsetFromTop in HoverCardIconSlot.swift:27 and HoverCardRow.swift:278 (added by 1231b9d). The fix is the checker's own repair: check-objc-selectors.py --probe --write on a Mac, then commit the table. NSView answers the selector on macOS 27.0.1; that is the one entry added.

Changelog

none

Observed / Not run

• Ran python3 -I scripts/cmux-next/check-objc-selectors.py at base 8fa7236: 2 failures, the ones above. With this table: 0 failures.
• Probe ran on cosmic-gray (macOS 27.0.1) in a scratch copy. It uses ctypes against libobjc only, with no build.
• Not run: probes on other macOS versions. The checker holds a key probed on one version to that version only.

Agent session: huge-blue

🤖 Generated with Claude Code

---

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Summary by cubic

Fixes the cmux-next crash-class check failing on every PR because the selector table had no entry for super.firstBaselineOffsetFromTop, used by HoverCardIconSlot and HoverCardRow. The checker now passes with 0 failures.

• Adds the probed NSView get:firstBaselineOffsetFromTop/0 entry for macOS 27.0.1 only; the checker keys probes to the version they were run on.
• The probe was run with ctypes against libobjc on macOS 27.0.1 with no build; other macOS versions were not probed.

^{Written for commit 94347be. Summary will update on new commits.}

[github-actions]

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

Review 94347be: 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=pr24417 -f ref=land-and-ci/objc-first-baseline -f platform=macos -f backend_mode=local

red: cmux-next checks (god files, concurrency, crash safety, l10n); no finished base run on e0ae6fa to compare; do not merge until green; see lane-rules

[teamleaderleo]

Owned by land-and-ci on huge-blue · session

[teamleaderleo]

Review (independent review subagent): SHIP at 94347be

Agent session: huge-blue

[blacksmith-sh]

Found 10 test failures on Blacksmith runners:

Failures

Test	View Logs
/tmp/tmpoqsfacd5/summary-missing.json (live):/summary-missing.json (live):	View Logs
/tmp/tmpzmc24qm3/summary-fail.json (live):/summary-fail.json (live):	View Logs
[new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows/ [new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows	View Logs
[new_workspaces] the window draws no frames/[new_workspaces] the window draws no frames	View Logs
[tabs] debug.tab_switch timed 0 of 40 switches/ [tabs] debug.tab_switch timed 0 of 40 switches	View Logs
[tabs] the window draws no frames/[tabs] the window draws no frames	View Logs
convention violations found (ERROR lines above)./ convention violations found (ERROR lines above).	View Logs
test_every_submodule_free_checkout_on_an_owned_runner_resets_submodules (main.Reuse dWorkspaceSubmodules.test_every_submodule_free_checkout_on_an_owned_runner_resets_submo dules)/ test_every_submodule_free_checkout_on_an_owned_runner_resets_submodules (main.Reuse dWorkspaceSubmodules.test_every_submodule_free_checkout_on_an_owned_runner_resets_submo dules)	View Logs
test_every_submodule_free_checkout_on_an_owned_runner_resets_submodules (main.Reuse dWorkspaceSubmodules.test_every_submodule_free_checkout_on_an_owned_runner_resets_submo dules) (job='web-bundles')/ test_every_submodule_free_checkout_on_an_owned_runner_resets_submodules (main.Reuse dWorkspaceSubmodules.test_every_submodule_free_checkout_on_an_owned_runner_resets_submo dules) (job='web-bundles')	View Logs
test_targets_outside_the_app_go_to_the_mac_canary (main.SwiftCanaryFleetCoverage.te st_targets_outside_the_app_go_to_the_mac_canary)/ test_targets_outside_the_app_go_to_the_mac_canary (main.SwiftCanaryFleetCoverage.te st_targets_outside_the_app_go_to_the_mac_canary)	View Logs

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

[github-actions]

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.3991367032401 (b9c3d5aabc)
• cmux NEXT nightly 1.0.0-nightly.3991575404801 (a62351daaa)