CAIN-INV-0540: tool-call argument validity — grounded, hallucination-resistant parameter checking

VERIFIED source compiles

Domain	TOOL_AND_SUPPLY_CHAIN_GOVERNANCE
Tier	ENGINEERING_INNOVATION
Source	`cain/cain_tool_arg_validity.py`
Mapped tests ran	49
Passed / failed / errored	49 / 0 / 0
Compiles	yes

Mapped tests

tests/test_mcp_proxy_residency_wiring.py

tests/test_mcp_residency_router.py

tests/test_restriction_stages_fail_closed.py

tests/test_tool_arg_validity.py

tests/test_toolargs_stage_and_log_recovery.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.