llm-fragments-rust (via) Inspired by Filippo Valsorda's llm-fragments-go, Francois Garillot created llm-fragments-rust
, an LLM fragments plugin that lets you pull documentation for any Rust crate directly into a prompt to LLM.
I really like this example, which uses two fragments to load documentation for two crates at once:
llm -f rust:rand@0.8.5 -f rust:tokio "How do I generate random numbers asynchronously?"
The code uses some neat tricks: it creates a new Rust project in a temporary directory (similar to how llm-fragments-go
works), adds the crates and uses cargo doc --no-deps --document-private-items
to generate documentation. Then it runs cargo tree --edges features
to add dependency information, and cargo metadata --format-version=1
to include additional metadata about the crate.
Recent articles
- Designing agentic loops - 30th September 2025
- Claude Sonnet 4.5 is probably the "best coding model in the world" (at least for now) - 29th September 2025
- I think "agent" may finally have a widely enough agreed upon definition to be useful jargon now - 18th September 2025