Using Floe with LLMs

LLMs don’t know Floe yet. You need to give them the language reference so they can write correct Floe code.

The quick version

Paste this URL into your AI tool’s context:

https://floe-lang.dev/llms.txt

This is a condensed reference covering all Floe syntax, types, compilation rules, and stdlib functions.

Claude Code

Fetch it directly in a conversation:

@url https://floe-lang.dev/llms.txt

Or add it to your project’s CLAUDE.md so every conversation has it:

## Floe Reference

When writing .fl files, fetch the language reference first:
https://floe-lang.dev/llms.txt

Cursor

Add it as a doc in your project’s .cursor/rules/ directory, or paste the URL into the context panel when writing Floe.

GitHub Copilot

Add to .github/copilot-instructions.md in your project:

When writing Floe (.fl) files, refer to the language reference at:
https://floe-lang.dev/llms.txt

Floe compiles to TypeScript. Key differences from TypeScript:
- Use `fn` instead of `function`
- Use `|>` pipes for data transformation
- Use `match` instead of switch/if-else chains
- Use `Result<T, E>` and `Option<T>` instead of null/exceptions
- No semicolons, no `let`/`var`, no classes

Other tools

Download the reference and include it in your system prompt or context window:

curl -o llms.txt https://floe-lang.dev/llms.txt

What the reference covers

• Core syntax (functions, types, pipes, pattern matching)
• Type system (records, unions, newtypes, opaque types, Result/Option)
• Compilation rules (what Floe compiles to in TypeScript)
• Standard library functions
• Import system (trusted, try, for-blocks)
• Common pitfalls and rules