CAIN-42 invariant · E23

META-S-canary-canary_worse_than_production: canary trigger CANARY_WORSE_THAN_PRODUCTION forces ROLLBACK

Held · CAIN-42 Evolution 23 -- Governed Meta-Intelligence Fabric

Last reviewed 2026-10-01

held   niche Autonomy, control loops & recovery

What this rule means

CAIN-42 must always satisfy: canary trigger CANARY_WORSE_THAN_PRODUCTION forces ROLLBACK. It is one of 253 invariants checked for CAIN-42 Evolution 23 -- Governed Meta-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

[
 "CANARY_WORSE_THAN_PRODUCTION",
 "OBSERVED_GAIN_BELOW_PREDICTED"
]

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Related rules

• META-I019: canary ≠ production
• META-I021: unknown self-state cannot become allow
• META-I040: rollback cannot erase audit history
• META-I051: the legitimate promotion path commits through E8
• META-I052: promotion never changes the governance ceiling
• META-I063: a governed rollback restores the architecture and revokes the failed one
• META-I076: recovery requires verification
• META-L015: META-015 SELF-OPTIMIZATION MUST NOT REMOVE GOVERNANCE CHECKS

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