CAIN-42 invariant · E33

E33-IMMUNESTEP-PRESERVE_EVIDENCE: immune response step PRESERVE_EVIDENCE runs in order

Held · CAIN-42 Evolution 33 -- Governed Agentic Operating Fabric

Last reviewed 2026-10-01

held   niche Attacks, threats & containment · family immune_step

What this rule means

CAIN-42 must always satisfy: immune response step PRESERVE_EVIDENCE runs in order. It is one of 581 invariants checked for CAIN-42 Evolution 33 -- Governed Agentic Operating 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

{'scenarios': 13, 'not_held': []}

Verify it in your browser

Your browser downloads the bundle's SHA256SUMS manifest and the file(s) behind this page, hashes them with SHA-256 locally (WebCrypto), and compares. A match shows the record you are reading is the published one; it does not by itself prove who published it (see the signed claims registry and the bundle verifier for that).

Check it yourself

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

Related rules

• E33-IMMUNE-coordinated_attack: the immune system responds fully to coordinated_attack
• E33-IMMUNE-authority_laundering: the immune system responds fully to authority_laundering
• E33-IMMUNE-capability_laundering: the immune system responds fully to capability_laundering
• E33-IMMUNE-identity_cloning: the immune system responds fully to identity_cloning
• E33-IMMUNE-policy_poisoning: the immune system responds fully to policy_poisoning
• E33-IMMUNE-memory_poisoning: the immune system responds fully to memory_poisoning
• E33-IMMUNE-world_model_poisoning: the immune system responds fully to world_model_poisoning
• E33-IMMUNE-verifier_attack: the immune system responds fully to verifier_attack

← E33-IMMUNESTEP-QUARANTINE · all 581 · E33-IMMUNESTEP-RECOVER →