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Rust Mutability

Checked
huiali·vlatest·backend·MIT

Analyzes Rust code for potential mutability issues, suggesting safer alternatives to prevent data races and unexpected behavior.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add huiali/rust-skills --skill rust-mutability -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

huiali

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned huiali/rust-skills at 947bf77509.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
947bf77509
Manifest
skills/rust-mutability/SKILL.md
Scanned
8 files, 1,150 lines
Copies in repo
2 — all of them scanned
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill allows AI agents to reason about and work with mutable data in Rust. It enables understanding of ownership, borrowing, and lifetimes when dealing with variables that can be modified. The agent will be able to correctly manage memory safety while performing operations on mutable data structures.

When to use it

  • Refactoring existing code: When an AI needs to modify a section of Rust code that involves changing variable values or data structures in place.
  • Implementing algorithms requiring in-place modification: For tasks like sorting, searching, or other operations where modifying the original data is more efficient than creating copies.
  • Working with complex data structures: When dealing with mutable linked lists, trees, or other structures that require careful management of ownership and borrowing rules.
  • Debugging memory safety issues: To assist in identifying and resolving errors related to mutable borrows and lifetimes.

Key capabilities

  • Understanding Rust's ownership system.
  • Reasoning about borrowing and lifetimes.
  • Managing mutable references correctly.
  • Avoiding data races and other concurrency issues when using mutability.

Example prompts

  • "Refactor this code to sort the vector in place."
  • "Explain why this borrow checker error is occurring, focusing on how mutability affects it."
  • "Write a function that modifies this linked list by removing all even numbers."

Tips & gotchas

The agent needs a foundational understanding of Rust syntax and basic programming concepts. Incorrectly using mutable references can lead to undefined behavior if the underlying rules are not followed, so careful attention is needed.