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 gpc-cookie-integrationgit 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/gpc-cookie-integration)<a href="https://agentmods.dev/skills/mukul975/privacy-data-protection-skills/gpc-cookie-integration"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/gpc-cookie-integration/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/gpc-cookie-integration"><img src="https://agentmods.dev/badge/skills/mukul975/privacy-data-protection-skills/gpc-cookie-integration.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 | $0.00058 | $0.03411 |
| Opus 5 | $0.00029 | $0.01706 |
| Sonnet 5 | $0.00012 | $0.00682 |
| Haiku 4.5 | $0.00006 | $0.00341 |
Grade A, and why
gpc-cookie-integration 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.
How it starts
The opening of the file, as written. The whole thing — 286 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Global Privacy Control Integration with Cookie Consent
Overview
Global Privacy Control (GPC) is a browser-level signal that communicates a user's privacy preferences to websites. Specified by the GPC community group and recognized as a legally binding opt-out mechanism under California's CCPA/CPRA (effective January 1, 2023), Colorado's CPA (effective July 1, 2024), Connecticut's CTDPA (effective July 1, 2023), and other US state privacy laws, GPC transmits a Sec-GPC: 1 HTTP header and a navigator.globalPrivacyControl JavaScript property with each request. Websites must detect this signal and automatically trigger opt-out of sale, sharing, and targeted advertising without requiring additional user action. Integration with cookie consent management platforms (CMPs) is essential to ensure the GPC signal correctly suppresses advertising cookies and data sharing.
GPC Signal Specification
How GPC Works
HTTP Header:
Sec-GPC: 1
Present on every HTTP request when the user has enabled GPC in their browser or browser extension.
JavaScript API:
navigator.globalPrivacyControl // Returns true if GPC is enabled
GPC-Enabled Browsers and Extensions:
| Browser/Extension | GPC Support | How to Enable |
|---|---|---|
| Firefox | Built-in (v120+) | Settings > Privacy & Security > "Tell websites not to sell or share my data" |
| Brave | Built-in (default ON) | Enabled by default; disable in Settings > Shields |
| DuckDuckGo Browser | Built-in (default ON) | Enabled by default on mobile and desktop |
| DuckDuckGo Extension | Extension | Install extension; GPC enabled by default |
| Privacy Badger (EFF) | Extension | Install extension; GPC enabled by default |
| OptMeowt | Extension | Chrome/Firefox extension specifically for GPC |
| Safari | Not natively supported | Requires third-party extension |
| Chrome | Not natively supported | Requires extension (DuckDuckGo, Privacy Badger) |
GPC vs. Do Not Track (DNT)
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 · 286 lines · 58 tokens per session scan A 0a66ae83683d
gpc-cookie-integration 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 58 tokens to every session and 3,411 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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