A fixed-scope AI proposal should clarify work and acceptance, rather than pretend every uncertainty has disappeared. A headline price can conceal assumptions about inputs, integrations, languages, business responsibilities, and the handling of exceptions. Write boundaries and assumptions explicitly. Use representative examples to describe expected behavior and what counts as a material error. Have an operator explain what they receive and provide. Separate defect correction from new features and continuing support. Agree how new document types, roles, or sources change scope. A useful fixed proposal makes changes manageable instead of invisible. Original article explainer. AI-assisted conceptual illustration and neural narration; original synthesized music. Not a human recording or customer result.