Efficient Web Scraping

Efficient Web Scraping is a skill for Claude Code from ClementWalter/rookie-marketplace. It costs 0 tokens per session (1,784 once invoked), scanned A, original, no licence file.

A web-scraping skill for extracting information from websites, APIs, and web pages. It recommends using small Python programs run with uv, a Python tool for managing scripts and dependencies.

In plain words
What is it for?
Fetching web content, extracting structured data, scraping pages, and processing responses programmatically.
Why use it?
It helps avoid loading very large web responses into the agent's working context when only selected data is needed.

Skill for Claude Code

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

Part of the chief-of-staff plugin — 3 skills, 3 hooks shipped together

Good fit Fetching web content, extracting structured data, scraping pages, and processing responses programmatically.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/clementwalter/rookie-marketplace/efficient-scraping
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 ClementWalter/rookie-marketplace --skill efficient-scraping
Clone the repo
git clone --depth 1 https://github.com/ClementWalter/rookie-marketplace

Made for: Claude Code.

Or install chief-of-staff, the plugin that ships this one along with the rest of its 3 skills, 3 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 Efficient Web Scraping

README.md
[![agentmods](https://agentmods.dev/badge/skills/clementwalter/rookie-marketplace/efficient-scraping/github.svg)](https://agentmods.dev/skills/clementwalter/rookie-marketplace/efficient-scraping)
Your own site
<a href="https://agentmods.dev/skills/clementwalter/rookie-marketplace/efficient-scraping"><img src="https://agentmods.dev/badge/skills/clementwalter/rookie-marketplace/efficient-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.

agentmods 80×15 button for Efficient Web Scraping

Your own site · 80×15
<a href="https://agentmods.dev/skills/clementwalter/rookie-marketplace/efficient-scraping"><img src="https://agentmods.dev/badge/skills/clementwalter/rookie-marketplace/efficient-scraping.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,784 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00000 $0.01784
Opus 5.5 $0.00000 $0.00714
Sonnet 5.5 $0.00000 $0.00357
Haiku 4.5 $0.00000 $0.00178

Measured 2mo ago against content hash 2c498fab092e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Efficient 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/web-extract.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

response = requests.get(url, headers={
chief-of-staff/skills/efficient-scraping/SKILL.md · 282 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 282 lines · 0 tokens per session scan A 2c498fab092e

Subscribe to this mod's changes

Efficient Web Scraping is a skill published in the GitHub repository ClementWalter/rookie-marketplace (2 stars, last pushed 9mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,784 tokens. 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 2026-08-31.

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