A solo agency delivering AI-assisted work to a client needs four contract clauses by Aug 2026 — disclosure of AI use, IP warranty carve-out for AI-generated portions, training-data exclusion of client materials, and a liability cap tied to fee paid — without which the agency carries strict liability under EU AI Act Article 50 plus contract-law warranty exposure on copyright.

Operators register, Risk and Governance cross-category. Reader cohort: solo or 2-10-person agency (design, dev, copy, marketing) delivering AI-assisted artifacts to clients; EU and UK primary; €50-€500/hr rate band. Cadence 30-day through Aug 2026 (Article 50 secondary acts and EC implementation guidance expected through 2026); then 45-day. Anchor sources cited inline: EU AI Act Article 50 (EUR-Lex official text, Regulation 2024/1689), UK IPO consultation on AI and copyright, US Copyright Office AI guidance Mar 2023 + updates, WIPO AI policy tracker, SCL templates, Bird & Bird / Pinsent Masons / Stibbe AI briefings. Four-clause framing: (1) disclosure in SOW for Article 50 transparency; (2) IP warranty carve-out for AI-generated portions in MSA/addendum; (3) training-data exclusion binding agency to business-tier or API configs in MSA/addendum; (4) liability cap at fees-paid-prior-6-months confirmed to cover AI-deliverable disputes. Trigger conditions to revisit before next cadence: (a) EC publishes Article 50 implementation guidance on what 'clear and distinguishable' deployer disclosure requires — updates Clause 1 skeleton; (b) UK IPO consultation concludes with position on Section 9(3) CDPA for generative AI — updates Clause 2 skeleton for UK-serving agencies; (c) US Copyright Office issues updated guidance narrowing or extending protection for AI-generated outputs with material human editorial input — updates Clause 2 framing for US-client work; (d) first named EU or UK court ruling on AI-deliverable copyright — would sharpen Clause 2 carve-out materially; (e) Anthropic or OpenAI changes default training-data exclusion terms on business or API tiers — updates Clause 3 named configurations. Sister claims: OPS-018 (1-page AI policy for small business — internal governance side), OPS-039 (AI invoicing and VAT compliance — operator-selling side), AM claim on EU AI Act Article 50 (enterprise deployer framing).