CAIN-42 invariant · E21

D120: all five adversarial challenges precede support

Held · CAIN-42 Evolution 21 -- Governed Open-Ended Intelligence Fabric

Last reviewed 2026-10-01

held niche Attacks, threats & containment

What this rule means

CAIN-42 must always satisfy: all five adversarial challenges precede support. It is one of 155 invariants checked for CAIN-42 Evolution 21 -- Governed Open-Ended Intelligence 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

[
 [
  "ADVERSARIAL_REFUTE_NOT_ATTEMPTED",
  "ADVERSARIAL_ALTERNATIVE_NOT_ATTEMPTED",
  "ADVERSARIAL_ASSUMPTION_ATTACK_NOT_ATTEMPTED",
  "ADVERSARIAL_REPRODUCE_NOT_ATTEMPTED"
 ],
 [
  "ADVERSARIAL_CHALLENGE_REQUIRED"
 ]
]

Check it yourself

Browse the raw bundle

Related rules

D121: a broken adversarial challenge blocks support
D139: intelligence is never reduced to one score

← D119 · all 155 · D121 →

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