The short answer
Accept an AI model or provider change only after recording the exact old and new versions and provider terms, freezing the workflow contract, classifying changed behavior and data handling, running representative and adversarial tests, verifying tool and permission boundaries, setting monitoring and rollback, and obtaining a release decision for a bounded scope.
Key takeaways
Define the change surface
Record model/provider/API version, endpoint, parameters, system instructions, tools and schemas, retrieval sources, safety settings, data location/retention commitments, rate limits, latency targets, pricing assumptions, deprecation dates, and fallback behavior. Capture what the provider states changed and what remains uncertain.
Do not copy unreleased contractual or product information into public notes. This article supplies an operational gate, not vendor legal, privacy, security, or procurement approval.
Test a frozen workflow contract
Define the allowed decisions and actions, required evidence, abstention and escalation conditions, tool permissions, output schema, idempotency rules, recipient/property boundaries, latency/failure behavior, and prohibited actions. Use representative normal cases plus known prior failures and boundary cases.
| Surface | Acceptance evidence | Rollback trigger |
|---|---|---|
| Task behavior | Expected decisions across fixed test set | Material error or abstention regression |
| Tools/actions | Correct selection, arguments, permission enforcement | Unauthorized or duplicate effect |
| Data handling | Reviewed configuration and contractual/security decision | Unapproved retention/location/exposure |
| Operations | Latency, errors, limits, fallback under load | Sustained threshold breach |
| Cost | Measured usage on representative workload | Unapproved budget variance |
| Observability | Version, inputs, decisions, tools, receipts traceable | Affected population cannot be reconstructed |
Release narrowly and preserve comparison evidence
Approve a property, action class, or traffic percentage with named monitoring metrics, duration, reviewer, and rollback authority. Retain the old version/configuration and any provider dependencies needed for the approved rollback window.
Compare live outcomes with the acceptance evidence, especially abstentions, escalations, tool failures, overrides, and external receipts. Expansion is a new decision; absence of alerts is not automatic approval.
Operational checklist
Mark your progress, then save a working copy. Selections reset when you leave this page. A checked box is not an approval or evidence of completion.
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Edge cases
Sources and references
Follow each source to check the underlying claim. Access checks and professional review are different steps.