Why AI deploy wizards work better when the tool drives, not the agent

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A developer replaced an 850-line markdown setup guide with a structured program called a 'deploy wizard' that drives AI agents step by step, rather than letting the agent interpret prose instructions. The wizard issues one JSON record at a time, limiting the agent to rendering output and relaying user responses, with no freedom to compose commands or diagnose errors independently. This approach was motivated by the fragility of documentation-based setups, where outdated dashboard labels or ambiguous wording caused AI agents to improvise and break live deployments. Every screen and branch of the wizard is a testable function of state, meaning wording and logic live in code with a proper test suite rather than in unverified prose. The deployment concludes with a live end-to-end test purchase, turning a successful run from an assumption into a verified fact.

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