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Strict JSON Output

Official
by Api.AirforceAppends a system prompt000 uses

Forces responses to be a single valid, minified JSON object — handy when you parse the output programmatically.

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What this skill does

When applied, it appends a system prompt before your request is sent — no extra calls and no change to how you are billed beyond the added tokens.

Respond ONLY with a single valid minified JSON object. No prose, no code fences.

Use this skill

Per request

Add a "skill" field with the skill’s ID to your chat completion request. It is applied server-side before your prompt is sent — no extra calls.

{
  "model": "gpt-4o-mini",
  "skill": "official-strict-json",
  "messages": [{ "role": "user", "content": "…" }]
}
Always on — no field to send

Install the skill, enable it in your dashboard and (optionally) limit it to specific models. It then applies automatically to every matching request — with no "skill" field to send each time.

Set it up in your dashboard