Outside Counsel Citation Gate for Fractional GCs

A pre-send verification gate that fractional General Counsel run on the citations, statutory references, and authority quotations contained in AI-leveraged work product they receive from outside law firms — before they sign off, forward to client, or rely on it. The fractional GC pastes only claim-tuples (citation + asserted proposition + jurisdiction), never client-confidential matter content. AE's adversarial multi-model debate stress-tests each tuple against public legal-authority sources (Bailii, EUR-Lex, Westlaw exports, SEC filings, court dockets) and returns a grade per claim plus a per-firm reliability ledger that accumulates across clients. Why AE: adversarial council + scored retrieval + structured constraint language are precisely the machinery for tightly-scoped factual claim grading; objective ground truth lives in public databases the GC already subscribes to; resolution is minutes, not weeks. The fractional GC keeps the audit trail and a growing scorecard of which outside firms (and which AI tools they use) produce reliable authority.

A confidentiality-safe, tuple-based citation verification gate that turns AE's adversarial graded debate into a compounding per-firm reliability ledger for the fractional GC's existing gatekeeping role.

Engine verdict: GATHER_MORE_SIGNAL (WORTH_SKIMMING). Real seam, real buyer pain, but semantic-verification gap and Bailii-only data ceiling make this premature to build.