Why it matters

Templates shape prompt maintainability. Foundation for prompt management.

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The architecture

Template: text with {vars}.

Fill: variables at runtime.

Validate: required vars present.

Prompt template flowTemplatewith variablesVariablesat runtimeRendered promptsent to LLMHandlebars/Mustache work; Jinja-like tools bridge Python + Java tooling
Prompt templates.
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How it works end to end

Choose lib: Mustache, Handlebars, StringTemplate.

Escape user input.

Version prompts.

Validate required vars.