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 mukul975/Privacy-Data-Protection-Skills --skill children-data-minimizationgit clone --depth 1 https://github.com/mukul975/Privacy-Data-Protection-SkillsWrote 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/mukul975/privacy-data-protection-skills/children-data-minimization)<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/children-data-minimization"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/children-data-minimization/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/mukul975/privacy-data-protection-skills/children-data-minimization"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/children-data-minimization.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 | $0.00087 | $0.03568 |
| Opus 5 | $0.00044 | $0.01784 |
| Sonnet 5 | $0.00017 | $0.00714 |
| Haiku 4.5 | $0.00009 | $0.00357 |
Grade A, and why
children-data-minimization 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.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- children-data-minimization — 95% identical, 22 lines differ
How it starts
The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Children's Data Minimisation and Retention Limits
Overview
Data minimisation for children's data requires a stricter interpretation of GDPR Article 5(1)(c) ("adequate, relevant and limited to what is necessary") than the standard adult context. Recital 38 states that children merit specific protection with regard to their personal data, as they may be less aware of the risks, consequences, and safeguards concerned and their rights in relation to the processing of personal data. The UK AADC Standard 8 explicitly requires that services collect and retain "only the minimum amount of personal data needed to provide the elements of the service in which a child is actively and knowingly engaged." COPPA Section 312.7 prohibits conditioning a child's participation on the collection of more personal information than is reasonably necessary. This skill provides a comprehensive framework for applying these heightened standards.
Legal Framework
GDPR Article 5(1)(c) — Data Minimisation Principle
"Personal data shall be adequate, relevant and limited to what is necessary in relation to the purposes for which they are processed."
When applied to children's data, "necessary" is interpreted strictly. The EDPB has confirmed that the vulnerability of children as data subjects (WP248rev.01 Criterion 7) elevates the data minimisation obligation.
GDPR Article 5(1)(e) — Storage Limitation Principle
"Personal data shall be kept in a form which permits identification of data subjects for no longer than is necessary for the purposes for which the personal data are processed."
For children's data, retention periods should be shorter than for adult data given that: (a) the purposes of processing often have a shorter useful life for children (e.g., educational progress in a specific grade), (b) the risk of harm from data exposure increases with retention duration, and (c) the child may not have meaningfully consented to long-term retention.
GDPR Recital 38 — Specific Protection for Children
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.
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.
- 11d ago First seen · 220 lines · 87 tokens per session scan A b9c162dcbc7f
children-data-minimization 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 87 tokens to every session and 3,568 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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