diff --git a/Architecture.md b/Architecture.md
index e69de29..1fdc597 100644
--- a/Architecture.md
+++ b/Architecture.md
@@ -0,0 +1,36 @@
+# Architecture
+
+## Classification
+
+Automation / agent workspace.
+
+## Structure Signals
+
+- `.cursor` (5 files)
+- `(root)` (2 files)
+
+## File Type Signals
+
+- `.mdc` (5)
+- `.cursorignore` (1)
+- `.gitignore` (1)
+
+## Build And Dependency Signals
+
+| Signal | Detail |
+|---|---|
+| README files | README.md |
+
+## Project Tree Snapshot
+
+- .cursor/rules/byterover-rules.mdc
+- .cursor/rules/fetch.mdc
+- .cursor/rules/memory.mdc
+- .cursor/rules/sequentialthinking.mdc
+- .cursor/rules/wiki.mdc
+- .cursorignore
+- .gitignore
+
+## Interpretation
+
+Treat this page as the maintainer map. Replace inferred structure with exact module responsibilities once active code paths are confirmed.