Guides

Guides pratiques des prompts

Méthodes pour concevoir et tester des instructions IA réutilisables.

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What Is a System Prompt?

Understand the persistent instruction layer that defines an AI assistant’s role, boundaries, and response behavior.

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Choose the right instruction layer so reusable behavior stays separate from each individual task.

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A repeatable method for turning vague requests into clear, testable AI work instructions.

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Know when clear instructions are enough and when examples are the fastest way to control a result.

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Design a strict JSON contract, handle missing values, and validate model output before your application uses it.

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Reduce unsupported claims by controlling sources, uncertainty, verification, and the scope of the task.

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Turn one-off instructions into reusable templates with clear, safe, and understandable inputs.

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Break complex AI work into inspectable steps with explicit inputs, outputs, and quality gates.

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Create a small evaluation set and score prompts for accuracy, completeness, format, and practical usefulness.

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Define an agent’s objective, tools, decision loop, stopping conditions, and escalation rules.