diff --git a/recognition/README.md b/recognition/README.md
index 806e587d..ff112889 100644
--- a/recognition/README.md
+++ b/recognition/README.md
@@ -36,7 +36,7 @@ Important:
 | Layer         | Page                                                                                                        | What it’s for                                           |
 | ------------- | ----------------------------------------------------------------------------------------------------------- | ------------------------------------------------------- |
 | ⭐ Proof      | [WFGY Recognition Map](https://github.com/onestardao/WFGY/blob/main/recognition/README.md)                 | External citations, integrations, and ecosystem proof  — **🔴 YOU ARE HERE 🔴** |
-| ⚙️ Engine     | [WFGY 1.0](https://github.com/onestardao/WFGY/blob/main/legacy/README.md)                                   | Original PDF-based tension engine blue   |
+| ⚙️ Engine     | [WFGY 1.0](https://github.com/onestardao/WFGY/blob/main/legacy/README.md)                                   | Original PDF based tension engine and early logic sketch. Legacy reference only.   |
 | ⚙️ Engine     | [WFGY 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md)                                     | Production tension kernel and math engine for RAG and agents. |
 | ⚙️ Engine     | [WFGY 3.0](https://github.com/onestardao/WFGY/blob/main/TensionUniverse/EventHorizon/README.md)             | TXT-based Singularity tension engine (131 S-class set)  |
 | 🗺️ Map       | [Problem Map 1.0](https://github.com/onestardao/WFGY/tree/main/ProblemMap#readme)                           | Flagship 16-problem RAG failure checklist and fix map       |