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.
npx skills add christopherlouet/claude-base --skill web-scrapinggit clone --depth 1 https://github.com/christopherlouet/claude-baseWrote 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.
[](https://agentmods.dev/skills/christopherlouet/claude-base/web-scraping)<a href="https://agentmods.dev/skills/christopherlouet/claude-base/web-scraping"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/web-scraping/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.
<a href="https://agentmods.dev/skills/christopherlouet/claude-base/web-scraping"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/web-scraping.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00075 | $0.02032 |
| Opus 5.5 | $0.00030 | $0.00813 |
| Sonnet 5.5 | $0.00015 | $0.00406 |
| Haiku 4.5 | $0.00007 | $0.00203 |
Grade A, and why
web-scraping scanned grade A with 1 finding 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 22d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
description: Clean LLM-ready web scraping via Firecrawl (scrape/crawl/map/agent/search). Trigger when the user wants to extract content from a page, crawl a site, collect structured data, bypass anti-bot/JS-rendering, or How it starts
The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Scraping (Firecrawl-first)
Goal
Extract LLM-ready web content without hacking around: clean markdown, structured JSON, anti-bot and JS-rendering handled. Firecrawl is the reference wrapper; fallback to Playwright or curl + html2text if unavailable.
When to trigger this skill
- "scrape this page / this site"
- "extract data from ..."
- "crawl site X"
- "fetch all articles from ..."
- "search the web and extract the content"
- "parse this dynamic page" (site with JS-rendering)
- "bypass the paywall / anti-bot" (legitimate use only)
When NOT to use this skill
- Quick web search without structured extraction ->
WebSearchis enough - A single static URL, simple page ->
WebFetchis enough - Visual test / browser interaction -> agent-browser, or ask the user to run
/qa:qa-chrome(theqa-chromeskill is manual-only) - Form / login automation -> agent-browser or Playwright directly
Prerequisites
Option 1: Firecrawl cloud (recommended)
export FIRECRAWL_API_KEY="fc-xxx" # https://firecrawl.dev
npm install -g firecrawl-cli # the CLI (`firecrawl`); the SDKs are firecrawl / firecrawl-py
Option 2: Firecrawl self-hosted
Docker compose available on github.com/mendableai/firecrawl. Useful if data is sensitive or budget is limited.
Option 3: Fallback without Firecrawl
If Firecrawl is missing, degrade gracefully:
| Need | Fallback | Limitation |
|---|---|---|
| Simple static page | curl -sL URL | pandoc -f html -t markdown |
No JS rendering |
| JS-heavy page | npx playwright + page.content() + markdownify |
Heavy, 300MB+ of deps |
| Whole site | recursive filtered wget | No deduplication, no LLM-ready output |
IMPORTANT: always announce when degrading. The user must know if the content is partial (JS not rendered).
The 5 Firecrawl operations (CLI firecrawl-cli v1.25)
1. Scrape (one URL)
firecrawl scrape https://example.com/article \
--format markdown,links \
--only-main-content
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.
- 22d ago Changed · +10 lines 6473ad94c405
- 23d ago Changed · +2 lines 223f4238b3c1
- 1mo ago Changed · -5 lines 35b08e36893a
- 1mo ago Changed · -1 lines 0b36b7af0966
- 1mo ago Changed b425e2ee1073
- 1mo ago First seen · 211 lines · 75 tokens per session scan A 99271f766d5a
web-scraping is a skill published in the GitHub repository christopherlouet/claude-base (5 stars, last pushed yesterday), licensed MIT. It adds 75 tokens to every session and 2,032 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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