A guided release gate lab grounded in the AICassindra topic A2A Message Envelope Structure.
Objective: Package the work with tests, provenance, rollback, and acceptance evidence.
Topic: A2A Message Envelope Structure. Work from the existing AICassindra article or lab, create a small testable artifact, and record what changed.
Acceptance: include an input, a measurable output, one failure case, and a written next step. Source: Existing AICassindra topic