Availability notes - Arga

Current public surfaces

Product area	API surface
Twin catalog and short-lived Twin Runs	`/validate/twins/` and `/twin-runs/`
Scenarios and persistent twin environments	`/scenarios/*` and `/scenario-twin-environments`
Browser Test Runs	`/runner/runs/` and `/test-runs/`
Saved Tests	`/runner/tests/` and `/tests/`
PR Test Run configuration	`/validation/github/*`
Run details, logs, and artifacts	`/runs/*`, result streams, and artifact endpoints

Compatibility notes

Note	Current state
Runner alias	`/demo-runner/` remains a deprecated alias for `/runner/`. New clients should use `/runner/*`.
URL validation	`POST /validate/url-run` remains available for older clients. New browser-test integrations should use `/runner/runs` or `/test-runs`.
Manual PR validation	`POST /validation/pr` remains available but is deprecated. Configure automatic PR Test Runs through `/validation/github/*`.
Run-model aliases	`/twin-runs`, `/test-runs`, and `/tests` map to the same current implementations as their longer route families.

Arga does not expose a public API that creates a new application deployment for every pull request. Browser Test Runs require a reachable start_url; PR Test Runs use the application target configured for the repository.

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