uk-aadc-implementation

uk-aadc-implementation is a skill for Claude Code from mukul975/Privacy-Data-Protection-Skills. It costs 74 tokens per session (3,560 once invoked), scanned A, original, Apache-2.0.

A guide to applying the UK's Age Appropriate Design Code, also called the Children's Code, to online services likely to be used by people under 18. It covers the code's 15 design standards for protecting children's personal data.

In plain words
What is it for?
Use it to assess or build children's online services, including privacy notices, data collection, location tracking, profiling, and best-interests assessments.
Why use it?
Services used by children need stronger privacy protections and age-appropriate defaults. This helps teams identify design choices that may conflict with UK data-protection expectations.

Skill for Claude Code

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

Part of the children-privacy-skills plugin — 10 skills shipped together

Good fit Use it to assess or build children's online services, including privacy notices, data collection, location tracking, profiling, and best-interests assessments.

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

Made for: Claude Code.

Or install children-privacy-skills, the plugin that ships this one along with the rest of its 10 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 uk-aadc-implementation

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/uk-aadc-implementation"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/uk-aadc-implementation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,560 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 $0.00074 $0.03560
Opus 5 $0.00037 $0.01780
Sonnet 5 $0.00015 $0.00712
Haiku 4.5 $0.00007 $0.00356

Measured 12d ago against content hash 6d64ddd0fd1c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

uk-aadc-implementation 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/children-privacy-skills/skills/uk-aadc-implementation/SKILL.md · 255 lines

How it starts

The opening of the file, as written. The whole thing — 255 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UK Age Appropriate Design Code Implementation

Overview

The Age Appropriate Design Code (AADC), also known as the Children's Code, is a statutory code of practice issued by the UK Information Commissioner's Office (ICO) under Section 123 of the Data Protection Act 2018. It came into force on 2 September 2020 with a 12-month transition period ending 2 September 2021. The Code sets out 15 standards of age-appropriate design that information society services (ISS) likely to be accessed by children must conform to. "Children" under the Code means anyone under the age of 18 in the UK. Non-compliance does not directly create criminal liability, but the ICO takes the Code into account when assessing conformance with the UK GDPR and DPA 2018, and violations can result in enforcement action including fines of up to GBP 17.5 million or 4% of annual worldwide turnover.

Scope — Who Must Comply

The AADC applies to providers of information society services that:

  1. Process personal data: The service processes the personal data of individual users
  2. Are likely to be accessed by children: The service is likely to be accessed by users under 18, even if not specifically directed at children. The ICO interprets "likely to be accessed" broadly — if children form any part of the actual or foreseeable user base, the Code applies
  3. Are information society services: Services normally provided for remuneration, at a distance, by electronic means, and at the individual request of a recipient. Includes apps, games, social media, streaming services, connected toys, news websites, educational platforms, and online marketplaces

Services NOT in Scope

  • Services with no UK users
  • Preventive or counselling services offered directly to a child
  • Services that can demonstrate children do not and cannot access the service (e.g., authenticated corporate intranets)

The 15 Standards

Standard 1: Best Interests of the Child

Requirement: The best interests of the child should be a primary consideration when designing and developing online services likely to be accessed by a child.

Read the full file on GitHub · 255 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 · 255 lines · 74 tokens per session scan A 6d64ddd0fd1c

Subscribe to this mod's changes

uk-aadc-implementation 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 74 tokens to every session and 3,560 once invoked, about $0.0004 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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