diff --git a/AGENTS.md b/AGENTS.md
index 43d3ef6..22e6b2f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -55,6 +55,7 @@ I maintain two distinct layers of documentation. I must keep them in sync but ne
 - **Architecture.md**: Tech stack, folder structure, and data flow diagrams.
 - **API.md**: Endpoint definitions, request/response schemas.
 - **Schema.md**: Database tables, relationships, and types.
+- **Discoveries.md**: Things learned empirically that future sessions should know.
 
 ### Layer 2: The Memory Bank, or mb (/memory-bank)