ci: add brew style + audit workflow for the tap#4
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The engine's release pipeline audits the formula it generates, but this tap repo had zero CI of its own — a hand-edited or drifted formula here was never independently linted, the second half of iss-dx-brew-install-broken's root cause. Add a workflow that runs `brew style` + `brew audit --strict` (offline, deterministic) on every change to Formula/** and to the workflow itself, so a malformed formula can't reach `main` and break `brew install`. Validated locally against Formula/omnigraph.rb: style clean, audit clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Why
Completes the second half of the root cause behind the DX-audit finding
iss-dx-brew-install-broken.
The engine's release pipeline audits the formula it generates (fixed in
ModernRelay/omnigraph#140), but this tap repo had zero CI of its own — a
hand-edited or drifted
Formula/omnigraph.rbwas never independently linted.That's the gap the audit called out: "homebrew-tap has its own audit CI."
What
Adds
.github/workflows/audit.yml, which on every change toFormula/**(and tothe workflow itself), plus
workflow_dispatch:modernrelay/taptap,brew styleandbrew audit --strict(offline → deterministic,network-independent; still catches the structural / ComponentsOrder defect
class).
Unlike the release pipeline — where the audit is intentionally a non-blocking
canary so a flaky
brewcan't skip the tap publish — here the audit is thepoint of the PR, so it gates merge.
Validation
Ran locally against the current
Formula/omnigraph.rb:brew style modernrelay/tap/omnigraph→1 file inspected, no offenses detectedbrew audit --strict modernrelay/tap/omnigraph→ cleanFollow-up to ModernRelay/omnigraph#140.
🤖 Generated with Claude Code