Architecture¶

metatools-a2a layers an A2A protocol surface on top of the ApertureStack discovery + execution stack.

Client (A2A) → toolprotocol/a2a → metatools-a2a/agent → tooldiscovery + toolexec

Execution Flow¶

1. JSON-RPC request arrives (agent/invoke)
2. Task created and streamed via SSE
3. Tool executed via toolexec/run
4. Task completed with result payload

Discovery Flow¶

1. skills list is derived from tooldiscovery summaries
2. Agent card is generated from canonical provider metadata