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rust-symbol-analyzer — Claude Code skill: map a Rust project

An LSP-based skill that maps a Rust codebase: modules, structs, traits, functions. Useful when you open an unfamiliar crate and need the layout fast.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add actionbook/rust-skills --skill rust-symbol-analyzer -a claude-code
Open on GitHub

What rust-symbol-analyzer does

The skill globs **/*.rs, pulls symbols through LSP and sorts them by kind. A single file goes through documentSymbol, which returns the hierarchy of modules, structs, fields and methods. Whole-project queries use workspaceSymbol across the workspace.

Output comes as tables: structs with fields and derives, traits with methods and implementors, functions with visibility and an async flag, enums with variants. There is also a complexity pass — files with many functions and lines get flagged as hotspots, which is your cue to look at refactoring. Internal dependencies are listed too: what a file imports and who imports it.

Arguments follow [file.rs] [--type struct|trait|fn|mod]. With none, the whole project is analysed. The skill talks to LSP, so rust-analyzer has to be running in your editor — otherwise no symbols come back. Only LSP, Read and Glob are allowed, so it reads code and never writes.

What it helps with

  • see the module tree of an unfamiliar crate
  • list every trait in the project with its implementors
  • find structs together with their fields and derives
  • spot high-complexity files before refactoring
  • trace which modules depend on a given file

Example prompts for the agent

  • /rust-symbol-analyzer
  • /rust-symbol-analyzer src/lib.rs
  • /rust-symbol-analyzer --type trait

How to install rust-symbol-analyzer

1Skills CLI (Vercel)

npx skills add actionbook/rust-skills --skill rust-symbol-analyzer -a claude-code

2Manually: put the files in place

~/.claude/skills/rust-symbol-analyzer/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/rust-symbol-analyzer/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about rust-symbol-analyzer

How do I install rust-symbol-analyzer in Claude?

Run npx skills add actionbook/rust-skills --skill rust-symbol-analyzer -a claude-code. The skill lands in ~/.claude/skills/rust-symbol-analyzer/SKILL.md.

What does rust-symbol-analyzer do?

It reads LSP symbols to describe a Rust project: modules, structs, traits, functions and enums. One file gives you a hierarchy, the whole project gives you tables by symbol type.

What does the skill need to run?

A working Rust LSP server, usually rust-analyzer. The skill calls documentSymbol and workspaceSymbol, and without the server those return nothing.

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