defuddle

defuddle is a skill for Claude Code from AgriciDaniel/claude-obsidian. It costs 57 tokens per session (949 once invoked), scanned A, original, MIT.

A web-page cleaning tool for turning public HTTPS articles into Markdown, a plain-text format for structured notes. It is optional and sends the URL and request details outside your computer with your approval.

In plain words
What is it for?
Use it to make an article-like web page easier to read, prepare Markdown for later wiki import, or clean a specific HTTPS URL after approving network access.
Why use it?
It removes menus, ads, and other page clutter before you save or process a web source. It also keeps cleaning separate from capturing or adding content to a wiki.

Skill for Claude Code

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

Part of the claude-obsidian plugin — 15 skills, 3 agents, 2 hooks shipped together

Good fit Use it to make an article-like web page easier to read, prepare Markdown for later wiki import, or clean a specific HTTPS URL after approving network access.

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

claude-obsidian is a local knowledge system that turns source material into linked, source-cited Markdown notes in an Obsidian vault for use with Claude Code and compatible agent hosts. People use it to capture research, retrieve evidence-grounded answers, maintain knowledge, and map connections while retaining ownership of their files. The catalogue entries provide workflows and extensions for operating this knowledge system.

AgriciDaniel/claude-obsidian · 14,693 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 AgriciDaniel/claude-obsidian --skill defuddle
Clone the repo
git clone --depth 1 https://github.com/AgriciDaniel/claude-obsidian

Made for: Claude Code.

Or install claude-obsidian, the plugin that ships this one along with the rest of its 15 skills, 3 agents, 2 hooks.

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/agricidaniel/claude-obsidian/defuddle.svg)](https://agentmods.dev/skills/agricidaniel/claude-obsidian/defuddle)
Your own site
<a href="https://agentmods.dev/skills/agricidaniel/claude-obsidian/defuddle"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-obsidian/defuddle.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 949 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 warn 10 Apr 2026
  • Snyk warn 10 Apr 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 $0.00057 $0.00949
Opus 5 $0.00028 $0.00475
Sonnet 5 $0.00011 $0.00190
Haiku 4.5 $0.00006 $0.00095

Measured 7d ago against content hash 458b6a3fbd20, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, 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 7d 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.

skills/defuddle/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Defuddle

Treat Defuddle as an optional external extractor, not an internal capability. Cleaning, raw capture, and wiki ingestion are separate operations.

Resolve the installed product root from this skill's own location, never from the selected vault or process working directory:

PRODUCT_ROOT=/absolute/path/to/installed/claude-obsidian
CORE="$PRODUCT_ROOT/scripts/claude-obsidian.py"
test -f "$CORE"

If a separately installed kepano/obsidian-skills defuddle skill is available, prefer it for current CLI flags. Retain the privacy, consent, and transaction rules in this skill.

Safety contract

  • Accept remote inputs only as HTTPS URLs.
  • Reject credentials in URLs, fragments, private or local hosts, non-public IP addresses, control characters, and sensitive query parameters.
  • Never interpolate a URL into a shell string. Pass it as one argv element.
  • Treat redirects to a different host as denied until that host is explicitly approved.
  • State that the URL and request metadata will leave the machine. Network access requires explicit consent in the current request or a separate confirmation.
  • Do not install a cleaner, execute a placeholder runner, or silently switch to another network fetcher.
  • Do not claim a fixed token reduction or extraction quality. Inspect the actual output.

Plan first

Create an inert URL plan. This validates the URL and executes no network call:

python3 "$CORE" capture external-plan url "HTTPS_URL"

Report the normalized host, network egress, redirect policy, optional external dependency, and execute: false. Then inspect whether this package can find a configured Defuddle executable:

python3 "$CORE" contracts --verify --capability defuddle --vault VAULT

An available state means no executable was found; stop with the inert plan. A configured state means the executable was discovered, but this package has no bundled behavioral verifier for it. Show that state and reason, identify the resolved executable path, and require manual review of its provenance, version, and exact argv before execution. Never relabel configured as verified.

Read the full file on GitHub · 105 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. 7d ago First seen · 105 lines · 57 tokens per session scan A 458b6a3fbd20

Subscribe to this mod's changes

defuddle is a skill published in the GitHub repository AgriciDaniel/claude-obsidian (14,693 stars, last pushed 11d ago), licensed MIT. It adds 57 tokens to every session and 949 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 2026-08-30.

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