| GDPR Art. 5(1)(c) | Data minimisation — personal data shall be adequate, relevant and limited to what is necessary. | Per-prompt data-minimization evidence — raw-vs-redacted delta showing only necessary content crossed the browser boundary, purpose-limitation check against the use-case taxonomy. |
| GDPR Art. 6 | Lawfulness of processing — processing shall be lawful only if and to the extent that at least one of the specified legal bases applies. | Per-prompt lawful-basis tag (legitimate interest, contract performance, consent, etc.) per use case, with evidence of basis-specific safeguards. |
| GDPR Art. 28 | Processor — processing by a processor shall be governed by a contract binding the processor. | Third-party provider registry — OpenAI DPA reference, Anthropic DPA reference, Google DPA reference, with contract version and audit-right provisions under Art. 28(3)(h). |
| GDPR Art. 30 | Records of processing activities — each controller shall maintain a record of processing activities. | AI-system inventory as Article 30 extension — provider, processing purpose, data categories, data subjects, transfer destination, retention period. |
| GDPR Art. 32 | Security of processing — the controller and processor shall implement appropriate technical and organisational measures. | Technical and organizational measures (TOMs) evidence — encryption in transit, client-side redaction, access controls, prompt-level logging, retention policies. |
| GDPR Art. 44–46 | General principle for transfers + appropriate safeguards (SCCs, BCR, DPF, derogations). | Per-prompt transfer-mechanism metadata — Anthropic SCCs v2021 reference for Claude transfers, OpenAI DPF certification reference for ChatGPT transfers, Google DPF + SCCs reference for Gemini transfers. |
| GDPR Art. 35 | Data protection impact assessment (DPIA) — where a type of processing is likely to result in a high risk, the controller shall carry out a DPIA. | DPIA inputs — AI-system inventory, data categories per use case, risk scoring per use case, TOMs evidence. DPO authors the DPIA using the inputs. |
| GDPR Art. 88 | Processing in the context of employment — Member States may provide for specific rules. | Employee-data-processing evidence — per-employee notice acknowledgment, works-council consultation reference, purpose limitation on employee monitoring. |