m01-ownership

m01-ownership is a skill for Claude Code from actionbook/rust-skills. It costs 96 tokens per session (1,057 once invoked), scanned A, original, no licence file.

A guide for fixing Rust ownership, borrowing, and lifetime problems. It covers errors such as moved values and references that outlive the data they refer to.

In plain words
What is it for?
Use it when Rust reports errors like E0382, E0597, or E0506, or when deciding whether to move, clone, or copy a value.
Why use it?
Rust uses ownership rules to prevent invalid memory access, but those rules can produce confusing compiler errors. This explains the likely cause and relevant concepts.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the rust-skills plugin — 38 skills, 21 commands, 4 agents, 1 hook, 1 MCP server shipped together

Good fit Use it when Rust reports errors like E0382, E0597, or E0506, or when deciding whether to move, clone, or copy a value.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/actionbook/rust-skills/m01-ownership
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add actionbook/rust-skills --skill m01-ownership
Clone the repo
git clone --depth 1 https://github.com/actionbook/rust-skills

Made for: Claude Code.

Or install rust-skills, the plugin that ships this one along with the rest of its 38 skills, 21 commands, 4 agents, 1 hook, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for m01-ownership

README.md
[![agentmods](https://agentmods.dev/badge/skills/actionbook/rust-skills/m01-ownership/github.svg)](https://agentmods.dev/skills/actionbook/rust-skills/m01-ownership)
Your own site
<a href="https://agentmods.dev/skills/actionbook/rust-skills/m01-ownership"><img src="https://agentmods.dev/badge/skills/actionbook/rust-skills/m01-ownership/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for m01-ownership

Your own site · 80×15
<a href="https://agentmods.dev/skills/actionbook/rust-skills/m01-ownership"><img src="https://agentmods.dev/badge/skills/actionbook/rust-skills/m01-ownership.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,057 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk pass 15 Feb 2026
How audits are shown
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.01057
Opus 5 $0.00048 $0.00528
Sonnet 5 $0.00019 $0.00211
Haiku 4.5 $0.00010 $0.00106

Measured 10d ago against content hash cb4ebbeefbba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

m01-ownership scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/m01-ownership/SKILL.md · 135 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 135 lines · 96 tokens per session scan A cb4ebbeefbba

Subscribe to this mod's changes

m01-ownership is a skill published in the GitHub repository actionbook/rust-skills (1,447 stars, last pushed 18d ago), with no licence file. It adds 96 tokens to every session and 1,057 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories