ENG-7639: Retarget drift caller to agents-md-drift

[nsportsman]

Summary

• retarget the instruction-file drift caller to agents-md-drift.yml@defe609cc7ff3f7630a36928d620c29bcf3b7930 (v2.19.3)
• rename the workflow to Instruction-File Drift Detection and concurrency instruction-drift-

Linear: ENG-7639

[chatgpt-codex-connector]

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[github-actions]

Codex Review

Critical Issues

None.

Security

No security concerns flagged.

Suggestions

No suggestions.

No critical issues — LGTM pending human review.

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Reviewed by Codex (gpt-5.5)

[github-actions]

Claude Review

Critical issues

None.

Security

• The reusable workflow is correctly pinned to a full commit SHA (defe609cc7ff3f7630a36928d620c29bcf3b7930) rather than a mutable tag — good practice. Worth confirming this SHA actually corresponds to v2.19.3 in praetorian-inc/public-workflows, since the trailing version comment is trust-on-first-use and not enforced by GitHub.

Test coverage

No production *.go/*.ts/*.py changes — CI workflow only, no tests needed.

No critical issues — LGTM pending human review.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Team

Run ID: 0d3e7f44-0fbe-4a6e-b203-3b48a53c654a

📥 Commits

Reviewing files that changed from the base of the PR and between 6cf0ea9 and 0cd5bf1.

📒 Files selected for processing (1)

• .github/workflows/agents-md-drift.yml

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Walkthrough

The workflow now uses agents-md-drift.yml version v2.19.3 instead of claude-md-drift.yml version v2.16.15. The workflow name and concurrency group now use Instruction terminology. Pull-request triggers, cancellation behavior, permissions, and secret forwarding remain unchanged.

Merge Risk: ⚪ Minimal · up to 0cd5b

Instruction-file drift detection now uses the updated reusable workflow and terminology. No merge-blocking risk is currently identified.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch eng-7639-agents-md-drift

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[github-actions]

Gemini Review

No critical issues — LGTM pending human review.

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Reviewed by Gemini (gemini-3.1-pro-preview)