Article 15(4): Feedback Loop Contamination Protection Gate

Statutory Framework: EU AI Act Article 15(4) (Recital 78)
Rule ID: RULE-EU-015 | Severity: PROGRAMMATIC BLOCKER
Mitigation Action: BLOCK_UNVETTED_FEEDBACK_LOOP

1. Statutory Mandate & Legal Boundary

"Prevents un-vetted agent outputs or synthetic generation streams from routing directly back into training or weight-update arrays without intermediate validation."

2. Technical Invariant & AST Engine Matcher

[POLICIES.RULE-EU-015]
rule_id = "RULE-EU-015"
statute = "EU AI Act Article 15(4) (Recital 78)"
severity = "BLOCKER"
action = "BLOCK_UNVETTED_FEEDBACK_LOOP"

[ENFORCEMENT]
fail_closed = true
audit_trail = "Ed25519_DAC"
latency_max_us = 800

3. Production Python / Rust Integration

from anchor import AnchorGuard

@AnchorGuard.guard(policy="RULE-EU-015")
def process_machine_payload(payload: dict):
    # Evaluated in <0.8ms against RULE-EU-015 AST query bounds
    return compliance_engine.enforce(payload)