zrosenbauer/prompt-merge

Zero-dependency library for conditionally merging LLM (system) prompts into a single string.

42
/ 100
Emerging

This tool helps developers who are building applications using Large Language Models (LLMs) to manage their system prompts. It takes multiple prompt fragments, often based on different conditions, and combines them into a single, clean prompt string. The output is a consolidated prompt ready to be sent to an LLM, making it easier for developers to create dynamic and context-aware LLM interactions.

Available on npm.

Use this if you are a developer building an LLM-powered application and need a straightforward way to conditionally assemble system prompts based on various application states or user inputs.

Not ideal if you are not a developer working directly with LLM APIs, or if your prompt management needs are simple enough that basic string concatenation suffices.

LLM development prompt engineering application development AI integration backend development
No Dependents
Maintenance 6 / 25
Adoption 5 / 25
Maturity 24 / 25
Community 7 / 25

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Stars

10

Forks

1

Language

TypeScript

License

MIT

Last pushed

Nov 24, 2025

Commits (30d)

0

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