CAIN-INV-1470: E21 governed state diff (spec §7)

VERIFIED source compiles

Domain	VERIFICATION_AND_ASSURANCE
Tier	IMPLEMENTATION
Source	`cain/e21/diff.py`
Mapped tests ran	149
Passed / failed / errored	149 / 0 / 0
Compiles	yes

Mapped tests

cain-microservices/shadow-agent-scanner/tests/test_api.py

tests/clawx_control_plane/test_memory_history_tql.py

tests/clawx_foundation/test_prompt11_trust_graph.py

tests/govfabric/test_compose_diff_federation.py

tests/govfabric/test_invariants_attacks_soundness.py

tests/test_cain42_e15_defect_closure.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.