code-dead-code

code-dead-code is a skill for Claude Code, Codex from laurigates/claude-plugins. It costs 38 tokens per session (1,000 once invoked), scanned A, original, MIT.

Detect dead code, unused exports, unreachable branches, and orphaned files. Use when reducing maintenance burden, cleaning up after refactors, or auditing codebase health.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/laurigates/claude-plugins/code-dead-code
Any agent
npx skills add laurigates/claude-plugins --skill code-dead-code
Clone the repo
git clone --depth 1 https://github.com/laurigates/claude-plugins

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 code-dead-code

README.md
[![agentmods](https://agentmods.dev/badge/skills/laurigates/claude-plugins/code-dead-code.svg)](https://agentmods.dev/skills/laurigates/claude-plugins/code-dead-code)
Your own site
<a href="https://agentmods.dev/skills/laurigates/claude-plugins/code-dead-code"><img src="https://agentmods.dev/badge/skills/laurigates/claude-plugins/code-dead-code.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,000 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00038 $0.01000
Opus 5 $0.00019 $0.00500
Sonnet 5 $0.00008 $0.00200
Haiku 4.5 $0.00004 $0.00100

Measured today against content hash 0e302697fb66, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-dead-code 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 today.

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.

code-quality-plugin/skills/code-dead-code/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/code:dead-code

Detect and report dead code across languages.

When to Use This Skill

Use this skill when... Use something else when...
Cleaning up after a major refactor Setting up dead code tooling → /configure:dead-code
Auditing codebase for unused exports Looking for duplicated code → /code:dry-consolidation
Reducing bundle size by removing dead code Looking for anti-patterns → /code:antipatterns
Pre-merge cleanup of feature branches Need full code review → /code:review

Context

  • Package files: !find . -maxdepth 1 \( -name "package.json" -o -name "pyproject.toml" -o -name "Cargo.toml" \) -type f
  • Knip config: !find . -maxdepth 1 \( -name "knip.json" -o -name "knip.jsonc" -o -name ".knip.json" \) -type f

Parameters

  • $1: Path to scan (defaults to current directory)
  • --tool: Force specific tool (knip, vulture, machete)
  • --fix: Automatically remove detected dead code where safe

Execution

Execute this dead code detection workflow:

Step 1: Detect project type and available tools

Check which languages are present and which dead code tools are available:

  • JavaScript/TypeScript: Check for knip or ts-prune
  • Python: Check for vulture
  • Rust: Check for cargo-machete

If no tool is available, report which tool to install and suggest /configure:dead-code to set up the project.

Step 2: Run dead code detection

JavaScript/TypeScript (Knip):

npx knip --reporter compact

If Knip is not configured:

npx knip --reporter compact --include files,exports,dependencies

Python (Vulture):

vulture ${1:-.} --min-confidence 80

Rust (cargo-machete):

cargo machete

Step 3: Categorize findings

Group results by severity:

Category Severity Action
Unused dependencies High Remove from package manifest
Unused exports Medium Remove export, check downstream
Unused files Medium Delete after confirming no dynamic imports
Unused variables/functions Low Remove if truly dead

Read the full file on GitHub · 123 lines

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. today First seen · 123 lines · 38 tokens per session scan A 0e302697fb66

Subscribe to this mod's changes

code-dead-code is a skill published in the GitHub repository laurigates/claude-plugins (57 stars, last pushed today), licensed MIT. It adds 38 tokens to every session and 1,000 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 2026-09-03.

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