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UltraCode

Build code structure graphs and semantic indexes for multi-language analysis.

8|2|Updated Nov 16, 2025
Search Tags:#code analysis#debugging#security#refactoring#semantic search#impact analysis#code modification
One-click install
npx skills add https://github.com/faxenoff/ultracode --skill ultracode
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: UltraCode
Source: https://github.com/faxenoff/ultracode/tree/main/claude-skills/ultracode
Command: npx skills add https://github.com/faxenoff/ultracode --skill ultracode

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill automates complex code analysis, semantic search, and safe code modifications, drastically reducing the time and token cost associated with AI agents exploring and refactoring codebases.

Core Features & Use Cases

  • Intelligent Code Search: Replaces grep and glob with semantic understanding for faster, more accurate results.
  • Impact Analysis: Identifies all affected code when a change is made.
  • Automated Refactoring: Safely rename symbols, modify code, and add members across a project.
  • Error Diagnosis: Analyzes stacktraces to pinpoint and suggest fixes for errors.
  • Architecture Visualization: Generates diagrams of code structure and dependencies.
  • Security Audits: Performs taint analysis to find vulnerabilities like SQL injection and XSS.
  • Use Case: An AI agent needs to refactor a function used in multiple places. Instead of manually searching and updating, it uses rename_symbol for a safe, project-wide update.

Quick Start

Use the UltraCode skill to find all usages of the 'getUser' function in the project.

Frequently Asked Questions about UltraCode

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I perform semantic code search across a project instead of using grep?▼

Semantic code search replaces grep by building a code structure graph and semantic index, enabling faster and more accurate retrieval of code elements based on meaning rather than exact text matches.

How do I safely rename a function used in multiple places during refactoring?▼

Automated refactoring safely renames symbols across a project by using impact analysis to identify all affected code, ensuring project-wide updates without manual searching.

Can I automate security audits and taint analysis for SQL injection vulnerabilities?▼

Yes, security audits perform taint analysis to automatically find vulnerabilities like SQL injection and XSS by tracing data flow through the code structure graph.

How do I pinpoint the cause of an error from a stacktrace?▼

Error diagnosis analyzes stacktraces to pinpoint the root cause of errors and suggests fixes by leveraging the semantic index and code structure graph.

Does this code analysis approach work with multiple programming languages?▼

Yes, this code intelligence provides semantic search, impact analysis, and refactoring capabilities for multiple programming languages by building a language-agnostic code structure graph.

What is the best way to identify all affected code when making a modification?▼

Impact analysis identifies all affected code when a change is made by mapping dependencies within the code structure graph, preventing unexpected breakages during modification.

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