Classify

Define the labels; the model picks exactly one. Classify is the standard front door to a branch: AI decides the category, the switch routes on it.

Config

Labels, and optionally what to read and extra guidance.

• Labels (required) — comma-separated (refund, complaint, question, other). The model must pick one of these — it can't invent a category, which is what makes the output safe to branch on.
• Input — optional template picking what to read ({{ payload.text }}). Blank reads the whole upstream payload.
• Extra instructions — optional domain guidance, e.g. "urgent means a same-day deadline".

Output

Structured, always the same two fields:

{ "ok": true,
  "data": { "label": "refund", "reasoning": "Asks for money back on order #2041." },
  "…": "…" }

Branch on {{ payload.data.label }}; log or show reasoning when you want the why.

Patterns

• Ticket triage — classify (urgent, routine, spam) → switch on the label → escalation path per case.
• Lead routing — classify inbound email by product line → notify the right channel.

Gotchas

• Always include an escape label (other, unknown) — without one, the model is forced to shoehorn genuinely unclassifiable input into your real categories.
• Wire every label to a switch case (or its default port) — an unwired label is a run that stops there.