Article 50(4): Public AI Text Generation Disclosure Gate

Statutory Framework: EU AI Act Article 50(4) (Recital 133)
Rule ID: RULE-EU-025 | Severity: PROGRAMMATIC BLOCKER
Mitigation Action: ENFORCE_TEXT_DISCLOSURE_TAG

1. Statutory Mandate & Legal Boundary

"Monitors streaming text outputs; requires an ai_disclosure_tag or human_reviewer_token before allowing public distribution egress."

2. Technical Invariant & AST Engine Matcher

[POLICIES.RULE-EU-025]
rule_id = "RULE-EU-025"
statute = "EU AI Act Article 50(4) (Recital 133)"
severity = "BLOCKER"
action = "ENFORCE_TEXT_DISCLOSURE_TAG"

[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-025")
def process_machine_payload(payload: dict):
    # Evaluated in <0.8ms against RULE-EU-025 AST query bounds
    return compliance_engine.enforce(payload)