Deduplicate A2A message delivery#160
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Summary
messageIdvalues so retries do not create duplicate Octo turns.a2a_send_messagepayloads within the same turn after the first successful send..DS_Storeartifact.Root Cause
Inbound peer messages were routed to Octo every time the endpoint received them, even when a peer retried the same
messageId. A repeated tool call in the same turn could also send the same A2A payload twice.Validation
uv run pytest tests/test_a2a_gateway.pyuv run ruff check src/octopal/interop/a2a/routes.py src/octopal/tools/communication/a2a.py tests/test_a2a_gateway.pyuv run black --check src/octopal/interop/a2a/routes.py src/octopal/tools/communication/a2a.py tests/test_a2a_gateway.pygit diff --check