Develop an ASC CLI change

Deliver one complete, reviewable behavior change through architecture, RED-GREEN implementation, realistic CLI verification, and PR-ready validation.

Write the design note

Before implementation, record:

1. Placement in the existing command taxonomy and registry.
2. Current --help behavior and expected invocation shape.
3. Exact OpenAPI endpoint, method, request schema, query parameters, and response shape when API-facing.
4. Flags, output formats, stdout/stderr behavior, and exit codes.
5. Compatibility, lifecycle, migration, and deprecation impact.
6. RED-GREEN tests, black-box checks, live verification, edge cases, and failure modes.
7. One or two credible alternatives and why this shape is preferable.

Stop and align before coding if the public command shape or compatibility decision remains materially ambiguous.

Establish RED