ci: harden CI/CD pipeline security#58
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- Pin all GitHub Actions to commit SHAs in CI workflow - Add top-level permissions: contents: read to CI - Add repository owner guard to deploy workflow - Add github-actions ecosystem to dependabot - Add --exclude-newer quarantine (2-day) to uv sync in CI Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Pull request overview
This PR hardens the repository’s CI/CD posture by tightening GitHub Actions supply-chain security and minimizing default token permissions, while adding a Dependabot configuration to keep pinned actions up to date.
Changes:
- Pin GitHub Actions in the CI workflow to specific commit SHAs and add top-level least-privilege
permissions: contents: read. - Add a 2-day package “quarantine” to CI installs by applying
uv sync --exclude-newerwith a computed cutoff timestamp. - Prevent deploy workflow job execution outside the upstream org by guarding jobs with
if: github.repository_owner == 'twilio', and enable Dependabot updates forgithub-actions.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
.github/workflows/deploy.yml |
Adds an org-owner guard to prevent fork-triggered deploy workflow execution. |
.github/workflows/ci.yml |
Pins actions to SHAs, restricts workflow token permissions, and adds uv sync --exclude-newer quarantine behavior. |
.github/dependabot.yml |
Adds github-actions ecosystem updates so pinned SHAs can be maintained automatically. |
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ryanrouleau
previously approved these changes
Jun 2, 2026
xinghaohuang91
previously approved these changes
Jun 3, 2026
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
ryanrishi
dismissed stale reviews from xinghaohuang91 and ryanrouleau
via
9bc1fad
Record `exclude-newer = "2 days"` in [tool.uv] so the 2-day supply-chain cooldown is enforced at lock time. Remove the CI --exclude-newer flag since --frozen now respects the lockfile's recorded option without mismatch. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
xinghaohuang91
approved these changes
Jun 5, 2026
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Summary
permissions: contents: readto CI workflow (least privilege)if: github.repository_owner == 'twilio'guard to deploy workflow (prevents fork abuse)github-actionsecosystem to dependabot configurationuv sync --frozenin CI (installs exactly the vetted lockfile versions)exclude-newer = "2 days"to[tool.uv]in pyproject.toml (quarantines freshly-published packages atuv lock/uv addtime, not at install time)Test plan
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