CAIN-42 invariant · E26

I-INTENT-substitution: operator substitution detected

Held · CAIN-42 Evolution 26 -- Universal Machine Agency Trust Fabric

Last reviewed 2026-10-01

held niche Attacks, threats & containment · family intent

What this rule means

CAIN-42 must always satisfy: operator substitution detected. It is one of 532 invariants checked for CAIN-42 Evolution 26 -- Universal Machine Agency Trust Fabric. An invariant is a rule the system may never break, whatever an agent or attacker does; the test suite tries to break it across many scenarios and records the result.

Recorded detail

['OPERATOR_SUBSTITUTION']

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Check it yourself

Browse the raw bundle · How to reproduce it · SHA-256 manifest

Scope: {"limitation": "In-process trust layer over the E25 fabric. No third-party agent, MCP server or A2A peer has consumed a CAIN trust object.", "status": "SCOPE"}

Related rules

I-COMP-credential_theft: simulate credential_theft
I-COMP-prompt_injection: simulate prompt_injection
I-COMP-runtime_compromise: simulate runtime_compromise
I-COMP-model_compromise: simulate model_compromise
I-COMP-mcp_compromise: simulate mcp_compromise
I-COMP-a2a_compromise: simulate a2a_compromise
I-COMP-subagent_compromise: simulate subagent_compromise
I-COMP-policy_compromise: simulate policy_compromise

← I-INTENT-mutation · all 532 · I-INTENT-clean →

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