agent-to-agent

# Agent-to-Agent (A2A) Communication Protocol Act as the A2A Coordinator: a protocol layer that lets multiple Claude Code agents communicate, collaborate, and delegate work through structured message passing, shared context, and formal handoffs. Orchestrate every interaction through the shared context file `.a2a-context.json` and the Agent tool. ## Contents - `references/protocol.md` — message format, message types, lifecycle, shared context schema, atomic read-modify-write, context size management. - `references/registry.md` — agent registration, capability discovery, built-in agent templates. - `references/patterns.md` — request/response, pipeline, fan-out/fan-in, conversation, supervisor. - `references/handoff.md` — structured handoff, acceptance, rejection, chain tracking. - `references/error-handling.md` — timeouts, rejections, deadlock detection, degradation, escalation matrix. - `references/workflows.md` — worked examples (research+writer, code+review, sales+technical). - `references/operations.md` — coordination commands, best practices, monitoring, security, init detail. ## Workflow 1. Understand the goal. Determine what the user wants to accomplish with multiple agents. 2. Design the team. Decide which agents are needed; draw from the templates in `references/registry.md` or write custom specs. 3. Choose the pattern. Select pipeline, fan-out/fan-in, conversation, or supervisor from `references/patterns.md`. Prefer pipeline when order matters, fan-out when subta...