cookie-audit

cookie-audit is a skill for Claude Code from mukul975/Privacy-Data-Protection-Skills. It costs 45 tokens per session (1,844 once invoked), scanned A, original, Apache-2.0.

A method for checking every cookie and tracking technology used by a website. Cookies are small pieces of data websites store in a browser, often to remember users, measure visits, or support advertising.

In plain words
What is it for?
Use it to scan websites, classify cookies, document their duration and third-party access, and compare the results with European consent requirements, including the Planet49 court ruling.
Why use it?
It shows which trackers a website uses, how they work, and what consent or privacy information may be missing. It helps reveal compliance gaps before they become legal or operational problems.

Skill for Claude Code

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

Part of the cookie-consent-skills plugin — 12 skills shipped together

Good fit Use it to scan websites, classify cookies, document their duration and third-party access, and compare the results with European consent requirements, including the Planet49 court ruling.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mukul975/privacy-data-protection-skills/cookie-audit
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 mukul975/Privacy-Data-Protection-Skills --skill cookie-audit
Clone the repo
git clone --depth 1 https://github.com/mukul975/Privacy-Data-Protection-Skills

Made for: Claude Code.

Or install cookie-consent-skills, the plugin that ships this one along with the rest of its 12 skills.

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 cookie-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/cookie-audit/github.svg)](https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/cookie-audit)
Your own site
<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/cookie-audit"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/cookie-audit/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 cookie-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/cookie-audit"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/cookie-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,844 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.
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 $0.00045 $0.01844
Opus 5 $0.00023 $0.00922
Sonnet 5 $0.00009 $0.00369
Haiku 4.5 $0.00005 $0.00184

Measured 11d ago against content hash 57f4997d9990, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

cookie-audit 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/process.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.

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.

plugins/cookie-consent-skills/skills/cookie-audit/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Auditing Website Cookies and Trackers

Overview

A cookie audit is the foundational step in achieving cookie consent compliance. It involves systematically identifying, categorizing, and documenting every cookie and tracking technology deployed on a website. The Court of Justice of the European Union in Planet49 GmbH v. Bundesverband der Verbraucherzentralen (Case C-673/17, 1 October 2019) established that pre-ticked checkboxes do not constitute valid consent under the ePrivacy Directive, and that users must be informed about cookie duration and third-party access before consenting. A thorough audit reveals what consent must be obtained and what disclosures must be made.

Audit Methodology

Phase 1: Preparation

Before scanning, document the audit scope for Pinnacle E-Commerce Ltd:

Parameter Value
Primary domain www.pinnacle-ecommerce.com
Subdomains in scope shop.pinnacle-ecommerce.com, account.pinnacle-ecommerce.com, blog.pinnacle-ecommerce.com
Authenticated pages Yes — customer account, checkout flow
Mobile-specific pages m.pinnacle-ecommerce.com
Third-party integrations Google Analytics 4, Meta Pixel, Hotjar, Stripe, Intercom
Scan frequency Quarterly (next: Q2 2026)

Phase 2: Automated Scanning

Deploy scanning tools to capture all cookies and tracking technologies:

Browser-Based Scanning

Use a headless Chromium instance to crawl the site and capture:

  • First-party cookies set via Set-Cookie headers
  • First-party cookies set via document.cookie JavaScript API
  • Third-party cookies from embedded resources
  • LocalStorage and SessionStorage entries
  • IndexedDB databases
  • Pixels and beacons (1x1 image requests, navigator.sendBeacon() calls)
  • Browser fingerprinting scripts (canvas, WebGL, AudioContext)

Network-Level Capture

Monitor HTTP/HTTPS traffic to identify:

  • Tracking parameters in URL query strings (utm_*, fbclid, gclid)
  • Redirect chains through tracking domains
  • Cookie syncing between third parties
  • Server-to-server data sharing endpoints

Read the full file on GitHub · 160 lines

Files

What ships with it

4 files 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. 11d ago First seen · 160 lines · 45 tokens per session scan A 57f4997d9990

Subscribe to this mod's changes

cookie-audit is a skill published in the GitHub repository mukul975/Privacy-Data-Protection-Skills (272 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 1,844 once invoked, about $0.0002 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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