When is the best time to invoke the Mojo Memory Safety Check?

It is best used during code reviews, when debugging segmentation faults, or as a final check before merging code into a production branch.

Can this skill help resolve 'Use after move' errors?

Absolutely. It traces the ownership of each value to identify if a variable is being accessed after its ownership has already been moved elsewhere.

What specifically does this skill check for in Mojo code?

It validates Mojo-specific memory rules including ownership transfers, borrowed references, mutable aliasing, and variable lifetimes to ensure code integrity.

Does it provide guidance on the Mojo transfer operator?

Yes, it specifically monitors the correct use of the '^' operator to ensure ownership is transferred correctly for non-copyable types like Strings and Tensors.

Mojo Memory Safety Auditor

Name: Mojo Memory Safety Auditor
Author: mvillmow

bymvillmow

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Security & Testing

Verifies Mojo memory safety rules including ownership, borrowing, and lifetime management to prevent segfaults and leaks.

About

Mojo Memory Safety Auditor is a specialized skill designed to help developers navigate Mojo's unique memory management model with precision. It provides systematic checks for ownership transfers using the transfer operator, validates parameter conventions like borrowed and mutable references, and identifies common memory-related pitfalls such as use-after-move or dangling references. This skill is particularly useful during code reviews, performance optimization, and when debugging complex segmentation faults in Mojo-based projects, ensuring that non-copyable data structures are handled according to production-grade safety standards.

Key Features

Detection of use-after-move and dangling reference errors
Guidance on proper use of the transfer operator (^)
Ownership and borrowing rule validation
Automated review of non-copyable type handling for Lists and Dicts
Verification of mutable aliasing and lifetime constraints
12 GitHub stars

Use Cases

Reviewing Mojo code for memory safety before production deployment
Debugging mysterious segmentation faults or memory corruption issues
Auditing ownership transfers in high-performance machine learning frameworks

About

Key Features

Detection of use-after-move and dangling reference errors
Guidance on proper use of the transfer operator (^)
Ownership and borrowing rule validation
Automated review of non-copyable type handling for Lists and Dicts
Verification of mutable aliasing and lifetime constraints
12 GitHub stars

Use Cases

Reviewing Mojo code for memory safety before production deployment
Debugging mysterious segmentation faults or memory corruption issues
Auditing ownership transfers in high-performance machine learning frameworks