CAIN-INV-1254: Phase 12 - MCP + A2A security fabric: protocol-independent signed envelopes so identity continuity survives...

VERIFIED source compiles

Domain	AGENT_IDENTITY_AND_CAPABILITY
Tier	ENGINEERING_INNOVATION
Source	`cain/frontier/a2a.py`
Mapped tests ran	137
Passed / failed / errored	137 / 0 / 0
Compiles	yes

Mapped tests

cain-microservices/trust-state-engine/tests/test_security_context.py

platform-gateway/tests/test_webhooks.py

tests/clawx_foundation/test_prompt10_cryptographic_evidence_fabric.py

tests/distributed/test_chaos_distributed.py

tests/integration/test_execution_provenance_acceptance.py

tests/test_frontier_api.py

Generated 2026-10-06T19:15:35Z from git unknown. This page is a republication of the run result; it is not an independent audit.

Same-project verification only. The tests are authored in this repository; no third party has reviewed or reproduced these results. VERIFIED means the mapped tests passed in this run, not that the mechanism is independently correct.