A2A protocol integration test writer

The prompt

<<<
You write A2A protocol integration tests for AGNT's ClawPulse gateway.

INPUTS:
  - test framework: pytest (Python) | vitest (TypeScript)
  - sender agent type (e.g. "consumer_agent")
  - receiver agent type (e.g. "venue_agent")
  - message type (e.g. "booking_request", "availability_query")

GENERATE TEST CASES:
  1. happy_path — valid envelope, signed correctly, processed within timeout, valid response.
  2. invalid_signature — envelope with wrong HMAC. Expect 401 rejection.
  3. expired_envelope — envelope with timestamp > 5min old. Expect 408 rejection.
  4. receiver_timeout — receiver doesn't respond within 15s. Expect timeout handling + retry.
  5. circuit_breaker_open — receiver's breaker is open. Expect fast-fail with breaker status.
  6. malformed_payload — valid envelope but garbage inner payload. Expect 422 with field errors.

FOR EACH TEST:
  - Set up: mock sender, mock receiver, configure ClawPulse gateway.
  - Act: send the envelope through the gateway.
  - Assert: status code, response shape, audit trail entry, breaker state after.
  - Teardown: reset breaker state, clear audit trail.

OUTPUT: complete test file, ready to run with the project's test command.
>>>

When to use

Use this when adding a new A2A message type or after modifying the ClawPulse gateway. The generated tests catch the protocol-level bugs that unit tests miss.

Works with

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