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check-memory-safety

Detect memory safety violations in Mojo code during reviews and testing.

18|5|Updated Nov 3, 2025
Search Tags:#code analysis#security#ownership#memory safety#borrowing#bug detection#mojo
One-click install
npx skills add https://github.com/mvillmow/ProjectOdyssey --skill check-memory-safety
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: check-memory-safety
Source: https://github.com/mvillmow/ProjectOdyssey/tree/main/.claude/skills/check-memory-safety
Command: npx skills add https://github.com/mvillmow/ProjectOdyssey --skill check-memory-safety

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires grep.

What problem does it solve?

Memory safety issues like use-after-free, ownership violations, or uninitialized access can lead to crashes and unpredictable behavior in Mojo code.

Core Features & Use Cases

  • Pattern Detection: Identifies common unsafe memory patterns such as uninitialized list access, use after move, and missing bounds checks.
  • Ownership Verification: Helps trace ownership transfers and verify lifetime correctness in Mojo code.
  • Use Case: During a code review of a performance-critical Mojo module, use this skill to quickly scan for potential use-after-free patterns and uninitialized memory access.

Quick Start

Use the check-memory-safety skill to find potential use-after-free patterns in your Mojo files.

Frequently Asked Questions about check-memory-safety

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

FAQPage Schema
How do I detect use-after-free bugs in Mojo code?▼

Use-after-free detection in Mojo identifies when code accesses memory after it's been freed or moved. This skill scans for ownership violations and lifetime issues, flagging unsafe patterns during code review to prevent crashes and undefined behavior.

What memory safety issues can this tool find in Mojo?▼

Memory safety analysis detects use-after-free, ownership transfer violations, double-free errors, uninitialized access, and SIMD memory access problems. It outputs a structured report with issue type, location, code snippet, root cause, and recommended fixes.

How do I verify ownership correctness in Mojo code?▼

Ownership verification traces memory transfers and validates lifetime correctness through allocation checks and pointer validation. Run this skill during code review to confirm ownership moves are safe and catch uninitialized list access patterns.

Can I use this for performance-critical Mojo modules?▼

Yes, this skill works on performance-critical Mojo code. It quickly scans for unsafe memory patterns including use-after-free and bounds check violations, integrating into code review workflows without slowing development.

What's the difference between this and manual code review for memory bugs?▼

Automated memory safety analysis applies consistent pattern detection across your codebase, catching ownership and lifetime issues that manual review might miss. It provides structured reports with risk levels and remediation guidance, scaling beyond single-file inspection.

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