defuddle

defuddle is a skill for Claude Code from kepano/obsidian-skills. It costs 74 tokens per session (277 once invoked), scanned A, original, MIT.

A command-line tool that turns ordinary web pages into clean, readable Markdown by removing navigation, ads, and other clutter.

In plain words
What is it for?
Reading or analyzing online documentation, articles, blog posts, and other standard web pages; it can also save the extracted Markdown or return page metadata.
Why use it?
It gives a coding agent only the useful page content, reducing irrelevant text and token use when reading a URL.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the obsidian-skills plugin — 5 skills shipped together

Good fit Reading or analyzing online documentation, articles, blog posts, and other standard web pages; it can also save the extracted Markdown or return page metadata.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kepano/obsidian-skills/defuddle
About the project

Obsidian Skills is a collection of instructions that teaches compatible coding agents to work with Obsidian vaults and their open file formats. Users employ the skills to create and edit Obsidian Markdown, Bases, JSON Canvas, and related files through agents such as Claude Code, Codex, and OpenCode. The catalogue entries are the project's own agent skills and plugin packaging.

kepano/obsidian-skills · 48,008 stars · on GitHub

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 kepano/obsidian-skills --skill defuddle
Clone the repo
git clone --depth 1 https://github.com/kepano/obsidian-skills

Made for: Claude Code.

Or install obsidian-skills, the plugin that ships this one along with the rest of its 5 skills.

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/kepano/obsidian-skills/defuddle/github.svg)](https://agentmods.dev/skills/kepano/obsidian-skills/defuddle)
Your own site
<a href="https://agentmods.dev/skills/kepano/obsidian-skills/defuddle"><img src="https://agentmods.dev/badge/skills/kepano/obsidian-skills/defuddle/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 defuddle

Your own site · 80×15
<a href="https://agentmods.dev/skills/kepano/obsidian-skills/defuddle"><img src="https://agentmods.dev/badge/skills/kepano/obsidian-skills/defuddle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 277 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 2 Apr 2026
  • Snyk warn 2 Apr 2026
  • 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 $0.00074 $0.00277
Opus 5 $0.00037 $0.00138
Sonnet 5 $0.00015 $0.00055
Haiku 4.5 $0.00007 $0.00028

Measured 9d ago against content hash 10673a4dc70a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d 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.

Origin

Copies of this mod

8 near-identical copies found in the catalogue:

  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
  • defuddle — 100% identical, 0 lines differ
skills/defuddle/SKILL.md · 42 lines

What it actually says

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.

If not installed: npm install -g defuddle

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

Flag Format
--md Markdown (default choice)
--json JSON with both HTML and markdown
(none) HTML
-p <name> Specific metadata property
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. 9d ago First seen · 42 lines · 74 tokens per session scan A 10673a4dc70a

Subscribe to this mod's changes

defuddle is a skill published in the GitHub repository kepano/obsidian-skills (48,008 stars, last pushed 3mo ago), licensed MIT. It adds 74 tokens to every session and 277 once invoked, about $0.0004 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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