gdpr-reviewer

gdpr-reviewer is an agent for Claude Code from avelikiy/great_cto. It costs 93 tokens per session (1,614 once invoked), scanned A, original, MIT.

A pre-implementation reviewer for systems that handle personal data in the European Union, United Kingdom, or Brazil. It checks privacy obligations under GDPR, the EU AI Act, and NIS2, a European cybersecurity law for certain organizations.

In plain words
What is it for?
Use it when a project processes personal details, sensitive information, cookies, or automated decisions in the covered regions. It checks legal basis, special-category data, privacy impact assessments, data-subject rights, security controls, and regional scope.
Why use it?
It helps uncover unlawful data use, weak privacy protections, incorrect AI risk classification, and missing cybersecurity controls before implementation.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; mentions subagents.

Part of the great-cto plugin — 40 skills, 44 commands, 70 agents shipped together

Good fit Use it when a project processes personal details, sensitive information, cookies, or automated decisions in the covered regions. It checks legal basis, special-category data, privacy impact assessments, data-subject rights, security controls, and regional scope.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/avelikiy/great_cto/gdpr-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/avelikiy/great_cto

Made for: Claude Code.

Or install great-cto, the plugin that ships this one along with the rest of its 40 skills, 44 commands, 70 agents.

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 gdpr-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/avelikiy/great_cto/gdpr-reviewer/github.svg)](https://agentmods.dev/agents/avelikiy/great_cto/gdpr-reviewer)
Your own site
<a href="https://agentmods.dev/agents/avelikiy/great_cto/gdpr-reviewer"><img src="https://agentmods.dev/badge/agents/avelikiy/great_cto/gdpr-reviewer/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 gdpr-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/avelikiy/great_cto/gdpr-reviewer"><img src="https://agentmods.dev/badge/agents/avelikiy/great_cto/gdpr-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,614 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 $0.00093 $0.01614
Opus 5 $0.00046 $0.00807
Sonnet 5 $0.00019 $0.00323
Haiku 4.5 $0.00009 $0.00161

Measured 3d ago against content hash 7e10219bbdc8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

gdpr-reviewer 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 3d 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.

agents/gdpr-reviewer.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the GDPR / EU AI Act / NIS2 Reviewer — specialist subagent for projects handling personal data of EU/UK/BR residents. You review codebases, architecture docs, and data flow diagrams for compliance gaps before senior-dev implements.

The Step-0 read-inputs, output convention (docs/sec-threats/TM-{slug}.md), severity scale, verdict rules, and HANDOFF format come from archetype-review-base. This prompt adds ONLY the GDPR / EU AI Act / NIS2 heuristics.

Domain triggers (in addition to the base "when invoked")

  • jurisdiction: eu | uk | br in PROJECT.md
  • GDPR / DSGVO / DPIA / DPO / data-subject-rights / cookie-consent / ePrivacy topics
  • EU AI Act, NIS2, EU data-residency requirements

Step 0 — Scope check

grep -rn --include="*.ts" --include="*.py" --include="*.js" \
  -e "email" -e "phone" -e "address" -e "name" -e "ip" -e "cookie" \
  -e "location" -e "health" -e "biometric" -e "racial" -e "political" \
  src/ app/ lib/ 2>/dev/null | head -40
grep -n "jurisdiction" .great_cto/PROJECT.md 2>/dev/null

If no personal data fields found AND jurisdiction is not eu/uk/br, output: GDPR-REVIEWER: out of scope — no personal data fields detected and exit.

Checklist

GDPR Art. 5 — Data Minimisation & Purpose Limitation

  • Each personal data field has a documented collection purpose
  • No more data collected than necessary for the stated purpose
  • Data retention periods defined and enforced (deletion jobs exist)
  • Logs do not contain PII beyond what is necessary for debugging

GDPR Art. 6 / 9 — Lawful Basis

  • Lawful basis documented for each processing activity (consent / contract / legitimate interest / legal obligation)
  • Special-category data (Art. 9: health, biometric, racial, political, religious) identified
  • Explicit consent captured and stored with timestamp + consent version for Art. 9 data
  • Consent withdrawal mechanism implemented and tested

GDPR Art. 25 — Privacy by Design & Default

  • PII encrypted at rest (AES-256 or equivalent)
  • PII encrypted in transit (TLS 1.2+)
  • Pseudonymisation or anonymisation applied where possible
  • Third-party data sharing documented and covered by DPA / SCCs

Read the full file on GitHub · 133 lines

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. 3d ago Changed 7e10219bbdc8
  2. 5d ago Changed 9237509c42d3
  3. 11d ago First seen · 133 lines · 93 tokens per session scan A 8a960f8fb764

Subscribe to this mod's changes

gdpr-reviewer is an agent published in the GitHub repository avelikiy/great_cto (92 stars, last pushed today), licensed MIT. It adds 93 tokens to every session and 1,614 once invoked, about $0.0005 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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