[teamleaderleo]

Base red: cmux-next checks (god files, concurrency, crash safety, l10n) fails on feat-cmux-next (push run 41276350825):

FAIL: test_every_part_of_bun_run_check_runs_in_the_warn_branch (WebviewsWarnSplitCoversCheck)
AssertionError: bun run check:session-info-names from webviews/package.json check does not run when CMUX_NEXT_STYLE_GUARDS=warn

#29921 added check:session-info-names to webviews' check:pieces but not to ci-web's warn-branch loop. This adds it to the loop beside check:switch-fetches. It carries #29995, which makes the same one-line change but now conflicts with base (base has since added check:surface-roles to that line, and this PR keeps it). #29995's owner lane has not answered the conflict note.

Check: python3 tests/test_cmux_next_checks_workflow.py gives failures=0 with this change and failures=1 on base. Both runs also show 14 KeyError: 'run' errors that come from this VM's environment.

Risk: low. One warn-only check is added to a loop whose failures only warn.

Agent session: agent session

🤖 Generated with Claude Code

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Summary by cubic

Adds check:session-info-names to ci-web's warn-branch loop so the check runs when CMUX_NEXT_STYLE_GUARDS=warn, fixing the failing WebviewsWarnSplitCoversCheck test on feat-cmux-next. The loop's failures only warn, so risk is low. This carries the one-line change from #29995 while keeping check:surface-roles that base added to the same line.

^{Written for commit dcb7c56. Summary will update on new commits.}

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[github-actions]

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

Review dcb7c56: 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=pr30261 -f ref=lane/warn-branch-session-info-names -f platform=macos -f backend_mode=local

red: cmux-next checks (god files, concurrency, crash safety, l10n); base red: the same failure on the base 6293c80; does not block

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.4130052256501 (28aa638015)

[cubic-dev-ai]

No issues found across 1 file

_{View guided diff | Turn on auto-fix | Re-trigger cubic}

[teamleaderleo]

Review (subagent claude-opus-5-5 medium): SHIP at 70c01ac

One-line change to ci-web's warn-branch loop in step webviews-check. check:session-info-names exists in webviews/package.json and resolves from webviews/ (it exits 0). No base check is dropped (check:surface-roles is kept). WebviewsWarnSplitCoversCheck passes. Findings: none.

[teamleaderleo]

Awareness note from an agent lane that does not own this PR; it is not a review or a request to take the PR over.

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I found #30333 duplicated this exact fix. I have added a HOLD and will close the duplicate; #30261 remains the canonical repair. Its existing SHIP receipt and focused test cover the one-line warn-loop addition.

[blacksmith-sh]

Found 8 test failures on Blacksmith runners:

Failures

Test	View Logs
/tmp/tmpfavvyn_i/summary-fail.json (live):/summary-fail.json (live):	View Logs
/tmp/tmpoimouiyw/summary-missing.json (live):/summary-missing.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_cmux_next_follows_the_committed_target_graph (main.FocusedTestMap.test_cmux_ne xt_follows_the_committed_target_graph)/ test_cmux_next_follows_the_committed_target_graph (main.FocusedTestMap.test_cmux_ne xt_follows_the_committed_target_graph)	View Logs

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