CI failure: Homebrew/actions/setup-homebrew@master no longer resolves in Smoke Test CI

[claude]

Summary

Smoke Test CI fails at the very first step (Set up job) of the Linters job before any code runs:

##[error]Unable to resolve action `homebrew/actions@master`, unable to find version `master`

• Workflow: Smoke Test CI (.github/workflows/smoke.yml)
• Failing job: Linters
• Run ID: 34953873818
• Branch/PR: worktree-docs-drift-421 / docs: fix semantic doc drift from 2026-09 sweep #422

Root cause

smoke.yml pins Homebrew/actions/setup-homebrew@master (lines 31 and 57). The upstream Homebrew/actions repository no longer exposes a master ref, so GitHub cannot resolve the action and the job fails during setup — this is environmental, not caused by the branch's changes. The repo's own .github/workflows/benchmarks.yml already uses @main, confirming main is the current default branch.

Fix

Change both occurrences in smoke.yml from @master to @main:

-        uses: Homebrew/actions/setup-homebrew@master
+        uses: Homebrew/actions/setup-homebrew@main

Why this needs a manual push

The auto-fix bot applied this change locally and verified it, but the push was rejected:

refusing to allow a GitHub App to create or update workflow `.github/workflows/smoke.yml` without `workflows` permission

The GitHub App token used by the auto-fix workflow lacks the workflows permission required to modify files under .github/workflows/. A maintainer needs to apply and push the change manually (or via a token with workflows scope).

Also affected (same root cause, separate workflows)

These will fail identically and should get the same @master -> @main change:

• .github/workflows/sbom.yml:30
• .github/workflows/coverage.yml:29
• .github/workflows/claude.yml:71

Suggested labels: bug, ci-failure

[laurigates]

Duplicate of #414. Fixed by #430 (43fd03d), which changes all five Homebrew/actions/setup-homebrew@master references to @main, including the sbom.yml, coverage.yml and claude.yml sites listed here. Setup Homebrew passes on main at be2fd3b in Smoke Test CI (https://github.com/laurigates/dotfiles/actions/runs/35738657555), SBOM Generation (35738657536) and Test Coverage (35738657485). Pinning the ref to a release SHA is tracked in #416.