agentmods.dev

drywall CLAUDE.md

A Claude Code plugin that finds repeated or very similar code and helps consolidate it. It uses jscpd to detect duplication, presents ranked results, and includes an agent for refactoring and verification.

In plain words
What is it for?
Scanning a project for exact, near, or structural duplicates, reviewing the most important findings, and refactoring them into shared code.
Why use it?
It reduces the need to search manually for duplicated code and helps organize the resulting cleanup.

Instructions file

7 25d ago A scan 515 tokens original MIT
View the source file nikhaldi/drywall
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 instructions/nikhaldi/drywall/claude-md
Clone the repo
git clone --depth 1 https://github.com/nikhaldi/drywall
Per session 515 This file is loaded in full into every session.
When invoked 515 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00515 $0.00515
Opus 5 $0.00258 $0.00258
Sonnet 5 $0.00103 $0.00103
Haiku 4.5 $0.00052 $0.00052

Measured 2d ago against content hash 91e5e1ad2663, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

drywall CLAUDE.md 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 2d 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.

CLAUDE.md · 35 lines

How it starts

The opening of the file, as written. The whole thing — 35 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

DRYwall is a Claude Code plugin for detecting and eliminating code duplication. It uses jscpd as its detection engine.

Architecture

The plugin has three components that work together:

  • MCP Server (source: src/jscpd.js, built: servers/jscpd.js) — A Node.js MCP server providing the detect_code_duplication tool. Reads .drywallrc.json, runs jscpd, and returns structured results ranked by impact. The skill and agent both use this tool for detection. Bundled via esbuild for distribution (no node_modules needed at runtime).

  • Skill (skills/scan/SKILL.md) — User-invocable command /drywall:scan that calls the MCP tool and presents the top 10 duplicates with consolidation suggestions.

  • Agent (agents/dedup-refactor.md) — Autonomous refactoring agent (Sonnet, max 30 turns) that calls the MCP tool, classifies duplicates (exact/near/structural), plans consolidation, refactors code, and verifies changes.

Configuration

Projects using DRYwall configure via .drywallrc.json at project root. Keys jscpdVersion and respectGitignore are DRYwall-specific; all other keys are passed through as jscpd CLI flags (camelCase is converted to kebab-case). User arguments override config file values.

Development

  • npm install — install dependencies
  • npm run build — bundle src/jscpd.js (and its dependency src/lib.js) to servers/jscpd.js via build.js
  • The bundle must be rebuilt and committed after changes to src/jscpd.js or src/lib.js
  • npm test — run unit tests (Node.js built-in test runner)
  • Tests live in test/**/*.test.js and cover src/lib.js (helpers extracted for testability)
  • test/fixtures/ contains a sample codebase with intentional duplication for manual testing

Version

The version is defined in package.json and injected into the bundle at build time via esbuild's define. It must also be kept in sync in .claude-plugin/plugin.json — CI verifies this.

Read the full file on GitHub · 35 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. 2d ago First seen · 35 lines · 515 tokens per session scan A 91e5e1ad2663

Subscribe to this mod's changes

drywall CLAUDE.md is an instructions file published in the GitHub repository nikhaldi/drywall (7 stars, last pushed 25d ago), licensed MIT. It adds 515 tokens to every session, about $0.0026 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 2026-08-31.

Code review
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