defuddle

defuddle is a skill for Claude Code, Codex from monkey1wizard/Golem-Agents-Legion. It costs 54 tokens per session (596 once invoked), scanned A, original, MIT.

A command-line tool and workflow for extracting clean Markdown from ordinary web pages by removing navigation, advertisements, and other clutter.

In plain words
What is it for?
Use it when reading web pages, articles, blog posts, or online documentation from a provided URL.
Why use it?
It reduces irrelevant page content, making online articles and documentation easier for an agent to read and analyse.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/monkey1wizard/golem-agents-legion/defuddle
Any agent
npx skills add monkey1wizard/Golem-Agents-Legion --skill defuddle
Clone the repo
git clone --depth 1 https://github.com/monkey1wizard/Golem-Agents-Legion

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 defuddle

README.md
[![agentmods](https://agentmods.dev/badge/skills/monkey1wizard/golem-agents-legion/defuddle.svg)](https://agentmods.dev/skills/monkey1wizard/golem-agents-legion/defuddle)
Your own site
<a href="https://agentmods.dev/skills/monkey1wizard/golem-agents-legion/defuddle"><img src="https://agentmods.dev/badge/skills/monkey1wizard/golem-agents-legion/defuddle.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 596 The whole file, excluding the scripts and references it only reads on demand.
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 5.1 $0.00054 $0.00596
Opus 5 $0.00027 $0.00298
Sonnet 5 $0.00011 $0.00119
Haiku 4.5 $0.00005 $0.00060

Measured yesterday against content hash 8f15e1061c9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

defuddle 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 yesterday.

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.

plugins/gal-core/skills/defuddle/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Defuddle

Use Defuddle CLI to extract clean readable content from web pages. Prefer over WebFetch for standard web pages — it removes navigation, ads, and clutter, reducing token usage.

Preferred Tool Order

  1. Use Defuddle for standard article-style pages where clean markdown extraction is the main goal.
  2. Use fetch when Defuddle is unavailable, the page is not article-like, or raw retrieval is preferable.
  3. Use imagefetch when the task depends on understanding page images as well as text.

Availability Check

Before using Defuddle, verify the CLI is installed:

defuddle --help
  • Exit code 0: Defuddle is available.
  • Non-zero or command-not-found: Defuddle is unavailable. Use the fallback strategy below.

If Defuddle is unavailable, the page is not a standard article page, or you need raw page retrieval rather than article extraction, fall back to the fetch MCP when it is available. If the task depends on understanding page images, prefer imagefetch over plain fetch.

If not installed: npm install -g defuddle

Fallback Strategy

  • Use fetch for raw or general page retrieval when Defuddle is unavailable.
  • Use imagefetch instead of plain fetch when page imagery is part of the task.
  • If the page is highly interactive rather than article-like, switch to a browser-oriented tool instead of forcing Defuddle.

No-Tool Behavior

If neither Defuddle nor the documented MCP fallback is available, say that clean page extraction is unavailable in the current runtime.

  • Ask the user for the source URL or page content if a manual path is still viable.
  • Do not describe the extraction as complete when the tool path was missing.

Usage

Always use --md for markdown output:

defuddle parse <url> --md

Save to file:

defuddle parse <url> --md -o content.md

Extract specific metadata:

defuddle parse <url> -p title
defuddle parse <url> -p description
defuddle parse <url> -p domain

Output formats

Read the full file on GitHub · 81 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. yesterday First seen · 81 lines · 54 tokens per session scan A 8f15e1061c9c

Subscribe to this mod's changes

defuddle is a skill published in the GitHub repository monkey1wizard/Golem-Agents-Legion (15 stars, last pushed 4d ago), licensed MIT. It adds 54 tokens to every session and 596 once invoked, about $0.0003 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 2026-09-04.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

insight-error-page

Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…

vercel/next.js · 83 tokens