A Different Job Than Chatbot Prompting
Chatbot prompts are conversational and forgiving. Business workflow prompts are contracts: the same input must produce the same shape of output, day after day, across thousands of executions. The disciplines are different.
Structure Beats Cleverness
The clever “you are a renowned expert…” openers do little. What matters in business workflow prompts:
- Clear role and scope.
- Explicit input schema.
- Hard constraints listed.
- Required output schema.
- Failure handling specified.
Constraints
State what the model must never do. Examples: “Never invent customer information.” “Never recommend a specific medical treatment.” “Always cite the source document by ID.”
Examples (Few-Shot)
Two or three concrete examples of correct input→output beat any amount of abstract instruction. The model pattern-matches. Show the pattern.
- • Role + scope (1 paragraph).
- • Input schema (explicit).
- • Hard rules (5–10 bullet points).
- • 2–3 worked examples.
- • Required output schema (JSON, usually).
- • Refusal/escalation rules.
Output Format
For workflows, structured output is non-negotiable. Specify JSON schema. Validate before consuming. Reject and retry if the model deviates. Modern models support structured output natively; use it.
Refusal Behavior
Specify exactly what the model says when it can't handle a request. “If the input lacks X, reply with: {"error": "missing X"}.” Predictable refusal is a feature.
Iteration With Evals
Build an eval set of 50–200 input/output pairs. Re-run after every prompt change. The eval is the difference between “I think it's better” and “it's measurably better.”
Prompt engineering for production isn't about magic words. It's about treating prompts like code: versioned, evaluated, and held to a quality bar.
FAQ
Should we use a prompt management tool? For teams of 3+, yes — LangSmith, Helicone, PromptLayer all useful.
How often to iterate? Weekly during development, then quarterly with monitoring.
Model-specific prompts? Yes — tune per model. Don't share prompts across providers without re-testing.