Treat prompts as products, not strings. Iterate, test, and refine them with the same rigor you'd apply to any product feature.

Show, don't tell -- examples beat instructions. A single good example communicates more than a paragraph of rules.

Specify format, length, and audience explicitly. Remove ambiguity so the model doesn't have to guess.

Test with edge cases, not just happy paths. Your prompt should handle unusual inputs gracefully.

Version everything. Yesterday's best prompt is tomorrow's baseline. Track changes and compare results.

Constraints improve creativity -- give the AI guardrails. Limits focus the output and reduce hallucination.

Ask for reasoning before answers. Chain of thought works. Have the model think step-by-step.

One prompt, one job -- don't overload. Break complex tasks into multiple focused prompts.