microsoft/poml

Health v2 · maintenance only

Flags: prerelease_only

Adoption not part of the score

4956 stars · 257 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

POML is a markup language from Microsoft for structuring, templating, and styling prompts for large language models, with an HTML-like syntax and CSS-like presentation styling. It ships with SDKs for Node.js and Python plus a VS Code extension providing syntax highlighting, autocomplete, and live previews.

Use cases

• structure complex llm prompts in a maintainable markup format
• embed documents, tables, and images into prompts
• separate prompt content from formatting to reduce format sensitivity
• generate data-driven prompts with variables and conditionals
• edit and preview prompt files in vscode
• build llm applications with a prompt sdk

When to choose

• you build sophisticated llm applications with large, reusable prompts
• you want tooling and editor support for prompt development
• you need to integrate external data files into prompts cleanly

When to avoid

• you only write short one-off prompts where markup overhead isn't worth it
• your framework already handles prompt templating adequately
• you need a language with broad community adoption beyond microsoft's ecosystem

Facets

library · maturity active

prompt-engineering templating sdk parser large-language-models artificial-intelligence developer-tools programming-languages python editor-plugin cross-platform markup-language vscode-extension llm-prompts prompt-orchestration microsoft nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="microsoft/poml")