Astra plans. Flash implements. Astra accepts.

Use the existing Codex Router, not a second agent CLI or API client. This skill provides the workflow; the custom agent and router select the worker model. Do not claim routing is verified from these instructions or a worker's self-report.

Supported orchestration workflow

There is no user-selectable mode switch. Thin-root orchestration is the only supported delegated workflow. “Thin” distinguishes this design from older, more Astra-active revisions; it is not one option in a mode menu.

Keep Astra focused on decisions where its judgment has the highest leverage: architecture, acceptance criteria, material risk, and final acceptance. After the contract is ready, Flash owns repository discovery needed within the brief, implementation, testing, debugging, and routine browser/visual QA.