Web-crawling and scraping tools that turn HTML pages into Markdown, with a headless Chrome fallback for pages that need a browser. Web scraping means collecting information from websites automatically.

Use it to crawl websites, scrape pages, convert HTML to Markdown, and handle browser-rendered pages.

It helps collect website content when ordinary HTML fetching is not enough.

crawlberg — Plugin for Claude Code by xberg-io

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.

Clone the repo

git clone --depth 1 https://github.com/xberg-io/crawlberg

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/xberg-io/crawlberg/plugin/github.svg)](https://agentmods.dev/plugins/xberg-io/crawlberg/plugin)

Your own site

<a href="https://agentmods.dev/plugins/xberg-io/crawlberg/plugin"><img src="https://agentmods.dev/badge/plugins/xberg-io/crawlberg/plugin/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/xberg-io/crawlberg/plugin"><img src="https://agentmods.dev/badge/plugins/xberg-io/crawlberg/plugin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 7 skills, 2 commands, 1 MCP server cost 439 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

crawlberg 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.

plugin/.claude-plugin/plugin.json · 28 lines

What it actually says

{
  "name": "crawlberg",
  "description": "Web crawling and scraping with HTML→Markdown and headless-Chrome fallback.",
  "version": "1.11.2",
  "author": {
    "name": "Kreuzberg, Inc.",
    "email": "[email protected]",
    "url": "https://xberg.io"
  },
  "homepage": "https://xberg.io",
  "repository": "https://github.com/xberg-io/crawlberg",
  "license": "MIT",
  "keywords": [
    "web-scraping",
    "crawling",
    "html-to-markdown",
    "headless-chrome"
  ],
  "mcpServers": {
    "crawlberg": {
      "command": "${CLAUDE_PLUGIN_ROOT}/scripts/mcp-launch.sh",
      "args": [
        "mcp"
      ]
    }
  }
}

Contents

What it installs

The manifest is a name and a version. 7 skills, 2 commands, 1 MCP server travel with it, and installing the plugin installs all of them — 439 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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.

yesterday Changed 4b3eb32493ed
2d ago Changed e554547ccd3f
3d ago Changed · -1 lines c1d0661ab700
9d ago Changed d4681cc36232
11d ago Changed d6d0fca385af
12d ago Changed b106cbea0876
14d ago Changed 7b87987cd846
22d ago Changed 2c724d492525
23d ago Changed 79a084581bce
1mo ago First seen · 29 lines scan A bdd7801d191b

Subscribe to this mod's changes

crawlberg is a plugin published in the GitHub repository xberg-io/crawlberg (185 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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ketch

Optional Claude Code integration for the ketch CLI: wires up the ketch mcp serve MCP server (search, code, docs, scrape, crawl, tag) and installs the bundled ketch research skill. The CLI stays the zero-infrastructure path — this plugin is a convenience, never a prerequisite. Requires the ketch binary >= v0.10.0 on P.

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crawlberg

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What it installs

What this file has done since we first saw it

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ketch

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