readme

README.md

@@ -542,7 +542,15 @@ uv run main.py --single-user --tools gmail
 ```bash
 # Requests only read-only scopes & disables write tools
 uv run main.py --read-only
+
+# Combine with specific tools or tiers
+uv run main.py --tools gmail drive --read-only
+uv run main.py --tool-tier core --read-only
 ```
+Read-only mode provides secure, restricted access by:
+- Requesting only `*.readonly` OAuth scopes (e.g., `gmail.readonly`, `drive.readonly`)
+- Automatically filtering out tools that require write permissions at startup
+- Allowing read operations: list, get, search, and export across all services
 
 **★ Tool Tiers**
 ```bash