llms.txt

helpers4.dev publishes its documentation as plain text for language models, following the llmstxt.org convention. An agent reads one small index, then only the reference it needs, instead of crawling hundreds of pages.

The files

File	What it holds
/llms.txt	The index: every helpers4 product, what it is for, and links to the files below. Start here.
/typescript/llms-full.txt	Every TypeScript helper: signature, parameters, examples.
/rust/llms-full.txt	Every public item of the Rust crate: signature, errors, examples (each one a doctest run in CI).

The llms-full.txt files are regenerated on every release of their library, from the same source as the human pages. Archived TypeScript versions keep their own copy next to their pages (/typescript/v2/llms-full.txt).

Pointing an agent at them

Add a line like this to your project’s agent instructions (AGENTS.md, CLAUDE.md, .github/copilot-instructions.md…):

Before writing a utility function, a devcontainer setup step or a CI step, check
https://helpers4.dev/llms.txt: helpers4 may already provide it.

When you tell an agent how to install a library, give it the one-install form:

• TypeScript: npm install helpers4, then import { … } from 'helpers4/<category>'.
• Rust: cargo add helpers4 --no-default-features --features <module>, then import through the module path (helpers4::string::capitalize).

Per-library pages

Each library also has its own page with library-specific advice: TypeScript · Rust.