ci: migrate workflows to nx agents

[beaussan]

Summary

• Start Nx Agents around the PR Test job while preserving the existing pnpm run test:pr script as the command surface.
• Reuse the existing .nx/workflows/dynamic-changesets.yaml distribution config and default Nx Cloud agent template.
• Leave Preview and Release on their existing execution paths.

Impact

• Architecture: CI keeps GitHub-only orchestration, preview publishing, and release behavior unchanged while distributing cacheable Nx targets from the PR Test workflow through Nx Agents.
• Performance / bundle size: No runtime or package changes. CI should get more distributed capacity for PR test targets.
• Risk: Requires a trial CI run to confirm Nx Cloud agent allocation and token availability in GitHub Actions.
• User-facing changes: None expected.

Testing

• npx -y pnpm@11.9.0 exec prettier --check .github/workflows/pr.yml .nx/workflows/dynamic-changesets.yaml
• YAML parsing for .github/workflows/pr.yml and .nx/workflows/dynamic-changesets.yaml
• npx -y pnpm@11.9.0 nx affected --targets=test:eslint,test:sherif,test:knip,test:docs,test:lib,test:types,build --graph=stdout
• git diff --check

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/nx-agents-workflow-migration

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[nx-cloud]

View your CI Pipeline Execution ↗ for commit 67117a0

Command	Status	Duration	Result
nx run-many --targets=build --exclude=examples/**	✅ Succeeded	<1s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-07-08 21:29:30 UTC

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/TanStack/intent/@tanstack/intent@196

commit: 67117a0