concurrency poc

[jsbroks]

• Updated quickstart and approval policy documentation to use HCL syntax, improving readability and aligning with Terraform best practices.
• Added descriptions to approval policies for better understanding of their purpose and functionality.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch concurrency-classified

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[jsbroks]

@cursoragent review

[cursor]

Summary

• Solid concurrency classification for event handling with clear read/write domain taxonomy, an order-preserving grouping algorithm, and thorough tests. All tests in apps/workspace-engine pass locally.

What’s great

• Explicit StateDomain model and comprehensive eventProfiles coverage.
• Safe fallback for unknown events (allDomains) to serialize conservatively.
• GroupConcurrentEvents preserves causal ordering (regression tests cover reordering bugs).
• Strong test suite: coverage, edge cases, ordering invariants, and stress tests.

Suggestions

• Update the PR description to reflect the actual code changes (it currently mentions docs/HCL).
• Reduce O(n²) in GroupConcurrentEvents: track domain→last conflicting group index to compute earliest eligible group in O(|reads|+|writes|) per event.
• De-dup sources of truth: consider exposing handler.AllEventTypes (or codegen) so tests don’t need to mirror event lists; similarly, centralize domain mappings if possible to avoid drift.
• Add basic metrics/benchmarks for grouping efficiency (avg group count, max group size) to validate improvements under load.
• Minor: add a brief comment near WorkspaceSave in eventProfiles noting why it serializes against all domains; it’s clear now but worth locking in rationale.

Questions

• Are the Deployment* reads on DomainReleases and ReleaseTargetDeploy reads/writes intended as modeled? If so, consider a short comment to document those cross-domain interactions for future maintainers.