r3bl-open-core: Skill for Claude Code

.agents/skills/run-clippy/SKILL.md

run-clippy is a skill for Claude Code, Codex from r3bl-org/r3bl-open-core. It costs 36 tokens per session (1,696 once invoked), scanned A, original, Apache-2.0.

A Rust code-quality routine that runs Clippy, formats code, checks comment punctuation, and reviews module organization. Clippy is Rust's tool for finding common mistakes and style problems.

In plain words
What is it for?
For checking or fixing Rust code after edits, including lint warnings, formatting, comment style, and module structure.
Why use it?
It catches warnings and keeps code and comments aligned with the project's conventions before changes are committed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is r3bl-org/r3bl-open-core's own configuration. It tells Claude Code and Codex how to work on r3bl-open-core itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything r3bl-open-core configures →

Reuse

Borrowing it

Nothing to install: this file belongs to r3bl-org/r3bl-open-core. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/r3bl-org/r3bl-open-core/main/.agents/skills/run-clippy/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core

Made for: Claude Code, Codex.

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 run-clippy

README.md
[![agentmods](https://agentmods.dev/badge/skills/r3bl-org/r3bl-open-core/run-clippy/github.svg)](https://agentmods.dev/skills/r3bl-org/r3bl-open-core/run-clippy)
Your own site
<a href="https://agentmods.dev/skills/r3bl-org/r3bl-open-core/run-clippy"><img src="https://agentmods.dev/badge/skills/r3bl-org/r3bl-open-core/run-clippy/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 run-clippy

Your own site · 80×15
<a href="https://agentmods.dev/skills/r3bl-org/r3bl-open-core/run-clippy"><img src="https://agentmods.dev/badge/skills/r3bl-org/r3bl-open-core/run-clippy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,696 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
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00036 $0.01696
Opus 5 $0.00018 $0.00848
Sonnet 5 $0.00007 $0.00339
Haiku 4.5 $0.00004 $0.00170

Measured 10d ago against content hash e79ad86a92ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

run-clippy 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.

.agents/skills/run-clippy/SKILL.md · 215 lines

How it starts

The opening of the file, as written. The whole thing — 215 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clippy Fixes and Code Style Enforcement

When to Use

  • After making code changes
  • Fixing clippy warnings
  • Ensuring comment punctuation consistency
  • Enforcing module organization patterns
  • Before creating commits
  • When user says "run clippy", "fix style", "format code", "check lints", etc.

Instructions

Run these steps in order to enforce code quality and style standards:

Step 1: Run Clippy

Run clippy to catch linting issues:

./check.fish --clippy
# (runs: cargo clippy --all-targets)

Review and fix all warnings. For auto-fixable issues:

cargo clippy --all-targets --fix --allow-dirty

Common clippy categories:

  • Correctness: Potential bugs and logic errors (must fix)
  • Performance: Inefficient code patterns (should fix)
  • Style: Idiomatic Rust patterns (should fix)
  • Pedantic: Opinionated style (optional, review case-by-case)
  • Complexity: Overly complex code (refactor if excessive)

Step 2: Enforce Comment Punctuation

Apply these punctuation rules to all comments (not rustdoc /// or //!, but regular // comments) in the git working tree:

Rule 1: Single-line Standalone Comments

Add a period at the end:

// This is a single line comment.
Rule 2: Multi-line Wrapped Comments (One Logical Sentence)

Period ONLY on the last line:

// This is a long line that wraps
// to the next line.
Rule 3: Multiple Independent Single-line Comments

Each gets its own period:

// First independent thought.
// Second independent thought.
How to Identify Wrapped vs Independent

Wrapped comments:

  • The second line continues the grammatical structure of the first
  • Reads as one sentence if combined

Independent comments:

  • Each line could stand alone as a complete thought
  • Separate sentences with distinct subjects

Step 3: Enforce Clean Imports (No Inline Absolute Paths)

Scan the changed files for any inline absolute paths (e.g., crate::Type, crate::function!) and replace them with proper use statements at the top of the file.

Read the full file on GitHub · 215 lines

Files

What ships with it

1 file 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 · 215 lines · 36 tokens per session scan A e79ad86a92ad

Subscribe to this mod's changes

run-clippy is a skill published in the GitHub repository r3bl-org/r3bl-open-core (483 stars, last pushed today), licensed Apache-2.0. It adds 36 tokens to every session and 1,696 once invoked, about $0.0002 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.

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