LLM Prompt Template

A reusable prompt scaffold with variables and instructions that standardizes how AI agents perform tasks across workflows.

An LLM prompt template is a reusable pattern with fixed instructions and variable slots. It standardizes how you ask models to do tasks, reducing drift and speeding iteration.

Teams use templates for emails, summaries, classifications, and tool calls. Variables (context, tone, constraints) plug in per request while the structure stays consistent.

In workflows, templates live alongside code/config, versioned, and tested. They improve output consistency, reduce prompt sprawl, and make updates predictable.

Frequently Asked Questions

What belongs in a prompt template?

Role/instructions, inputs, constraints (tone, format), examples, and output format. Keep variables clearly marked.

How do I test a template?

Run fixed test cases, compare outputs to expected patterns, and monitor validation failures. A/B different wordings if accuracy lags.

How do I prevent prompt drift?

Use version control, enforce reuse, and limit one-off prompts. Centralize updates and run regression checks after changes.

Can templates call tools?

Yes—define the tool schema and include guidance on when to call it. Keep instructions concise so the model follows the happy path.

How do I localize templates?

Externalize tone/locale variables, and translate fixed instructions with native review. Test per language for cultural fit.

What about safety constraints?

Include safety rules, forbidden content, and schema checks. Pair templates with guardrails to catch violations.

How do I store templates?

Keep them in code/config with IDs, versions, and owners. Avoid scattering in random files or UI-only editors.

How many examples should I include?

Use a few high-quality examples targeted to the task. Too many can bloat context; rotate as you learn better patterns.

Do templates reduce latency?

Indirectly—consistent prompts reduce retries and validation failures. For speed, keep them concise and choose appropriate models.

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