Add rust_ast.nu

[graves]

Repo link: https://github.com/graves/nu_rust_ast

Description:
A Rust symbol harvesting and analysis tool. It parses Rust source code into structured Nushell records, enabling deep introspection of functions, structs, traits, impls, and more. With built-in utilities for call graph visualization, dependency usage mapping, and colorized symbol trees, it transforms raw Rust source into actionable, queryable data.

Why I think it’s awesome:

• It unlocks Rust code analysis entirely from the shell, enabling you to quickly comprehend large codebases, even when they don't build.
• Structured Symbol Tables: Extracts rich metadata for every Rust item (fqpaths, spans, signatures, visibility, doc comments, bodies).
• Call Graph Analysis: Quickly answer "who calls what" and "what depends on this" with forward and reverse traversals.
• Dependency Usage Insights: Map out how external crates are used in your project with precision.
• Optimized for Large Projects: Synthesizes file module nodes, estimates token counts, and scales to crates of any size.
• Seamless Nushell Integration: All outputs are native Nushell records, perfect for filtering, querying, and piping into other commands.

It goes beyond static browsing — this tool empowers you to interactively explore and reason about Rust codebases without needing a buildable project or IDE.

Disclaimer: I’m the author of the tool.

[fdncred]

If we're going to have this here too, it's better to have it in a folder with a readme.md that describes it.

[graves]

Done, thank you!

[fdncred]

Thanks