eprivacy-essential-cookies

eprivacy-essential-cookies is a skill for Claude Code from mukul975/Privacy-Data-Protection-Skills. It costs 59 tokens per session (2,766 once invoked), scanned A, original, Apache-2.0.

A guide to deciding which cookies and similar browser storage are strictly necessary under Article 5(3) of the EU ePrivacy Directive. It covers session, functionality, and load-balancing cookies, plus categories that are not exempt.

In plain words
What is it for?
Use it to classify cookies, document exemption decisions, and check website storage against guidance from European and national privacy regulators.
Why use it?
It helps avoid treating optional cookies as exempt, which can create enforcement risk, while also avoiding unnecessary consent requests for essential functions.

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 classify cookies, document exemption decisions, and check website storage against guidance from European and national privacy regulators.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mukul975/privacy-data-protection-skills/eprivacy-essential-cookies
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 eprivacy-essential-cookies
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 eprivacy-essential-cookies

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/eprivacy-essential-cookies"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/eprivacy-essential-cookies.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,766 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 $0.00059 $0.02766
Opus 5 $0.00030 $0.01383
Sonnet 5 $0.00012 $0.00553
Haiku 4.5 $0.00006 $0.00277

Measured 12d ago against content hash 5b852dcd9414, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

eprivacy-essential-cookies 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 12d 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/eprivacy-essential-cookies/SKILL.md · 265 lines

How it starts

The opening of the file, as written. The whole thing — 265 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ePrivacy Directive Article 5(3) Essential Cookie Exemption

Overview

Article 5(3) of the ePrivacy Directive (2002/58/EC, as amended by Directive 2009/136/EC) requires informed consent before storing or accessing information on a user's terminal equipment (cookies, LocalStorage, device fingerprints). However, it provides an exemption for storage that is "strictly necessary in order for the provider of an information society service explicitly requested by the subscriber or user to deliver the service." Correctly classifying cookies under this exemption is critical — over-claiming exemption exposes organizations to enforcement action, while under-claiming creates unnecessary consent friction. The Article 29 Working Party Opinion 04/2012 on Cookie Consent Exemption (WP 194) remains the authoritative guidance on applying this exemption.

Exemption Criteria

The Two-Part Test

A cookie qualifies for the strictly necessary exemption only if BOTH conditions are met:

Condition 1 — The cookie is strictly necessary The cookie must be essential for the specific functionality that the user has actively requested. "Strictly necessary" means the service literally cannot function without it — not merely that it would be degraded or less convenient.

Condition 2 — For a service explicitly requested by the user The user must have actively requested the service that the cookie enables. The cookie must serve the user's purpose, not the website operator's purpose. A cookie that is necessary for the operator's business model (e.g., analytics) but not for the service the user requested (e.g., viewing products) does not qualify.

Article 29 Working Party Exemption Categories

WP 194 (Opinion 04/2012) identified specific cookie categories that can qualify for exemption:

Category A — User Input Cookies (Session-Only)

Criterion Requirement
Purpose Keeping track of user input during a multi-step process (e.g., filling a form, shopping cart)
Duration Session-only (deleted when browser closes) or short-lived (limited to a few hours)
Scope First-party only
Example Shopping cart contents during a browsing session

Read the full file on GitHub · 265 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. 12d ago First seen · 265 lines · 59 tokens per session scan A 5b852dcd9414

Subscribe to this mod's changes

eprivacy-essential-cookies 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 59 tokens to every session and 2,766 once invoked, about $0.0003 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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