add-chat-capability

Recipe for adding a capability to a conversational AI application, such as a new connector, a project feature, or a new model behaviour - user-visible behaviour, data model change, context assembly impact, backend orchestration and streaming events, frontend rendering and stream handling, evaluation set and regression tests, cost and latency budget, security, and observability. Names the skills to apply at each step, the exit check, and the handoff. Load when extending chat features end to end or planning a change to how the assistant behaves.