Add LLM policy

1 files changed, 17 insertions, 0 deletions

diff --git a/LICENSE.md b/LICENSE.md
index 337f134..d4674a7 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -51,6 +51,23 @@ License v3.0 or later**.
   [`LICENSES/GPL-3.0-or-later.txt`](LICENSES/GPL-3.0-or-later.txt) or visit
   [gnu.org/licenses/gpl-3.0.html](https://www.gnu.org/licenses/gpl-3.0.html).
 
+## 4. Artificial Intelligence, Data Mining & Machine Learning
+
+All materials in this repository are protected under their respective copyleft
+licenses (`CC-BY-SA-4.0`, `CERN-OHL-S-2.0+`, `GPL-3.0-or-later`).
+
+* **Reservation of TDM Rights:** To the maximum extent permitted under
+  applicable law (including Article 4(3) of EU Directive 2019/790), all rights
+  for Text and Data Mining (TDM), automated scraping, and commercial AI
+  ingestion are explicitly reserved.
+* **Copyleft Enforcement:** Automated ingestion or dataset harvesting for
+  Artificial Intelligence / Large Language Model training is strictly prohibited
+  unless the entity training or distributing the model fully complies with the
+  strong copyleft, attribution, and source-sharing requirements of the
+  respective licenses.
+* **Contributor AI Policy:** For rules regarding human contributor usage of AI
+  tools during submission, refer to [`LLM_POLICY.md`](LLM_POLICY.md).
+
 ## Summary of SPDX Identifiers
 
 ```spdx