webcrawl-mcp: Instructions file for Claude Code

CLAUDE.md

webcrawl-mcp CLAUDE.md is an instructions file for Claude Code from andyliszewski/webcrawl-mcp. It costs 204 tokens per session, scanned A, original, MIT.

Repository instructions for choosing web-scraping tools: fetching pages, searching, discovering URLs, and crawling multiple pages.

In plain words
What is it for?
Use them when implementing or operating page scraping, site search, URL mapping, or multi-page crawls in this project.
Why use it?
They specify which webcrawl operation to try first and when to fall back to Firecrawl for JavaScript-heavy or failed requests.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is andyliszewski/webcrawl-mcp's own configuration. It tells Claude Code how to work on webcrawl-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything webcrawl-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to andyliszewski/webcrawl-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/andyliszewski/webcrawl-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/andyliszewski/webcrawl-mcp

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.

agentmods badge for webcrawl-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/andyliszewski/webcrawl-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/andyliszewski/webcrawl-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/andyliszewski/webcrawl-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/andyliszewski/webcrawl-mcp/claude-md/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 webcrawl-mcp CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/andyliszewski/webcrawl-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/andyliszewski/webcrawl-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 204 This file is loaded in full into every session.
When invoked 204 The same file — it is already loaded in full.
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.
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 $0.00204 $0.00204
Opus 5.5 $0.00082 $0.00082
Sonnet 5.5 $0.00041 $0.00041
Haiku 4.5 $0.00020 $0.00020

Measured 2mo ago against content hash 5648eda7b256, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

webcrawl-mcp 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 2mo 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 · 23 lines

What it actually says

Project Instructions

Web Scraping Tool Preferences

When fetching web content, prefer the webcrawl MCP tools over Firecrawl:

Task Use Fallback
Single page webcrawl_scrape mcp__firecrawl__firecrawl_scrape
Search webcrawl_search mcp__firecrawl__firecrawl_search
Discover URLs webcrawl_map mcp__firecrawl__firecrawl_map
Multi-page crawl webcrawl_crawl mcp__firecrawl__firecrawl_crawl

When to fall back to Firecrawl:

  • webcrawl_scrape returns empty or very short content (JS-heavy site)
  • Site requires JavaScript rendering
  • webcrawl tool fails or times out

Why webcrawl first:

  • Free (no API costs)
  • Faster for static content
  • No rate limits
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. 2mo ago First seen · 23 lines · 204 tokens per session scan A 5648eda7b256

Subscribe to this mod's changes

webcrawl-mcp CLAUDE.md is an instructions file published in the GitHub repository andyliszewski/webcrawl-mcp (16 stars, last pushed 2mo ago), licensed MIT. It adds 204 tokens to every session, about $0.0008 per session on Opus 5.5. 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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