PDL: A Declarative Prompt Programming Language

Fuente: arXiv
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Autores principales: Vaziri, Mandana, Mandel, Louis, Spiess, Claudio, Hirzel, Martin
Formato: Preprint
Publicado: 2024
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author Vaziri, Mandana
Mandel, Louis
Spiess, Claudio
Hirzel, Martin
author_facet Vaziri, Mandana
Mandel, Louis
Spiess, Claudio
Hirzel, Martin
contents Large language models (LLMs) have taken the world by storm by making many previously difficult uses of AI feasible. LLMs are controlled via highly expressive textual prompts and return textual answers. Unfortunately, this unstructured text as input and output makes LLM-based applications brittle. This motivates the rise of prompting frameworks, which mediate between LLMs and the external world. However, existing prompting frameworks either have a high learning curve or take away control over the exact prompts from the developer. To overcome this dilemma, this paper introduces the Prompt Declaration Language (PDL). PDL is a simple declarative data-oriented language that puts prompts at the forefront, based on YAML. PDL works well with many LLM platforms and LLMs. It supports writing interactive applications that call LLMs and tools, and makes it easy to implement common use-cases such as chatbots, RAG, or agents. We hope PDL will make prompt programming simpler, less brittle, and more enjoyable.
format Preprint
id arxiv_https___arxiv_org_abs_2410_19135
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle PDL: A Declarative Prompt Programming Language
Vaziri, Mandana
Mandel, Louis
Spiess, Claudio
Hirzel, Martin
Artificial Intelligence
Programming Languages
Large language models (LLMs) have taken the world by storm by making many previously difficult uses of AI feasible. LLMs are controlled via highly expressive textual prompts and return textual answers. Unfortunately, this unstructured text as input and output makes LLM-based applications brittle. This motivates the rise of prompting frameworks, which mediate between LLMs and the external world. However, existing prompting frameworks either have a high learning curve or take away control over the exact prompts from the developer. To overcome this dilemma, this paper introduces the Prompt Declaration Language (PDL). PDL is a simple declarative data-oriented language that puts prompts at the forefront, based on YAML. PDL works well with many LLM platforms and LLMs. It supports writing interactive applications that call LLMs and tools, and makes it easy to implement common use-cases such as chatbots, RAG, or agents. We hope PDL will make prompt programming simpler, less brittle, and more enjoyable.
title PDL: A Declarative Prompt Programming Language
topic Artificial Intelligence
Programming Languages
url https://arxiv.org/abs/2410.19135