What is required to use the Rust Call Graph skill?

The skill requires a Rust project with an active Language Server (LSP) setup, allowing Claude to accurately index symbols and trace function relationships.

Can I visualize who calls a specific function?

Yes, by using the --direction in flag or asking 'who calls this function', the skill traces and displays all incoming call hierarchies.

Does it support exporting graphs to documentation?

Yes, the skill can generate Mermaid-formatted diagrams that can be directly embedded into GitHub READMEs or other Markdown documentation.

How deep can the call analysis go?

The default depth is 3 levels, but you can customize this using the --depth argument to perform deeper architectural analysis across your crate.

Does this skill help identify code complexity issues?

Yes, the analysis provides insights into function fan-out, leaf functions, and hot paths, helping you identify potential design bottlenecks.

Rust Call Graph Visualizer

Name: Rust Call Graph Visualizer
Author: actionbook

byactionbook

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596

Developer Tools

Visualizes Rust function call hierarchies and execution paths using LSP-powered analysis.

About

The Rust Call Graph skill enables developers to instantly map out complex function relationships within Rust codebases. By leveraging Language Server Protocol (LSP) operations, it traces incoming and outgoing calls to various depths, providing clear ASCII visualizations, Mermaid diagrams, and structural analysis. It is an essential tool for performing impact analysis during refactoring, understanding execution flows in unfamiliar modules, and identifying architectural bottlenecks like high fan-out functions or deep complexity paths.

Key Features

Bi-directional call hierarchy tracing for both callers and callees
Customizable depth analysis for deep execution path mapping
Automated ASCII and Mermaid diagram generation for documentation
Structural analysis reporting for complexity and hot path identification
Real-time symbol resolution via LSP integration
596 GitHub stars

Use Cases

Performing impact analysis before refactoring critical Rust functions
Tracing execution flow from entry points to specific logic blocks
Documenting complex system architectures with exportable Mermaid graphs

About

Key Features

Bi-directional call hierarchy tracing for both callers and callees
Customizable depth analysis for deep execution path mapping
Automated ASCII and Mermaid diagram generation for documentation
Structural analysis reporting for complexity and hot path identification
Real-time symbol resolution via LSP integration
596 GitHub stars

Use Cases

Performing impact analysis before refactoring critical Rust functions
Tracing execution flow from entry points to specific logic blocks
Documenting complex system architectures with exportable Mermaid graphs