Return a checked artifact with the Gemini API

Use the Gemini API for a bounded transformation of supplied data, such as extracting a claim ledger from selected documentation. Your program owns the source selection, result schema, validation, and downstream decisions.

An API call does not automatically reproduce Gemini's research interface or Gemini CLI's repository tools.

Choose the response family explicitly

Google documents multiple API surfaces. The reference package's gemini-api normalizer covers the GenerateContent response family. Google now labels that documentation as legacy; do not assume the newer Interactions API returns the same envelope.

For a new client, review Google's current API guidance and choose the interface deliberately. If you use Interactions, implement and test its own normalizer. Changing an endpoint while keeping the old parser can discard important state or misread completion.

Extract a traceable claim

The reference package includes a research schema. Its fixture output names a requirement, its source, and what remains uncertain:

{
  "claims": [{
    "statement": "The first retry is numbered 1.",
    "source": {
      "path": "docs/retry-contract.md",
      "line": 2,
      "quote": "Attempt 1 waits 1000 ms."
    }
  }],
  "uncertainties": ["The fixture does not model jitter."]
}

Give the model the selected source text and supported structured-output schema. Use the chosen API's documented JSON MIME/schema configuration. Pin an available model and configure a bounded output allowance.

Keep the exact source pointer with the claim. A later planner needs to inspect the requirement, not just trust a polished summary.

Check the complete response

For the supported GenerateContent family, inspect request success, blocking information, candidate finish status, and actual text parts. The package rejects a blocked or incomplete candidate before parsing its JSON.

Validate the inner object against the closed schema. Check that the cited path is approved, the line exists, and the excerpt matches. A valid schema cannot establish that an extracted statement applies to the project's version.

Prepare access and limits

Use the intended API project and authentication path. Keep the API key in the request executor's environment and out of artifacts. A Gemini subscription does not by itself establish an API project's allowance or billing.

Configure timeouts, bounded attempts, output limits and any applicable project usage controls. Keep failed attempts in the run's accounting. An unavailable model should return an explicit failure unless the human already approved the specific alternative.

The reference package supplies normalization, import validation and an optional supervised GenerateContent client. Its configured request uses generationConfig.responseFormat.text, bounds input/output and runtime, and preserves uncertain transport outcomes for reconciliation.

The local HTTP tests use a synthetic key. They do not verify model availability or behavior with your project's credentials.

What goes wrong

A developer confuses the outer envelope with the task JSON, imports a response from a different API family, or treats a real quote as proof of an unsupported conclusion. An automatic provider fallback can also send the source packet to a recipient that was never approved.

How to check

Run the fixture tests and alter one quoted phrase. Validation must fail before the planning stage becomes eligible. Also test a blocked or truncated candidate.

For a live synthetic trial, preserve the requested and reported model, API family, usage, and source checks. Record limitations openly instead of presenting an offline fixture as a verified provider integration.