The Schema Made Me Do It

A JSON schema with no field for 'no' forces the sampler past a refusal it would otherwise emit

Technique first revealed 19 Feb 2025

Inside the Model

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SetupStep 1 / 6

A reasonable-looking feature: strict output

A team building an app wants tidy, predictable answers, so they make the model reply only in one exact format — like a form with fixed boxes. This is normal and useful: it keeps the output easy for the rest of the app to read.

⚙️App config (structured output)config

response_format: json_schema
strict: true
schema:
  type: object
  required: [answer, steps]
  properties:
    answer: { type: string }
    steps:  { type: array, items: { type: string } }
# Note: schema has no field to express refusal / 'cannot comply'.

← / → keys