Removed dead code/unneeded env setting

README.md

@@ -7,7 +7,7 @@ Gives Claude (or any MCP client) the ability to explore your Snowflake account
 ## Features
 
 - SSO authentication (opens browser on first connection, then reuses the session)
-- Connection pooling with 30-minute timeout
+- Single persistent connection with 30-minute timeout
 - Query caching (5 min TTL)
 - Read-only safety: only SELECT / SHOW / DESCRIBE queries are allowed
 - Async query support for long-running queries
@@ -37,14 +37,14 @@ Set environment variables (recommended) or edit the defaults at the top of `snow
 export SNOWFLAKE_ACCOUNT="your-account-id"       # e.g. "xy12345.eu-west-1"
 export SNOWFLAKE_USER="your.email@company.com"
 
-# Optional — defaults shown
-export SNOWFLAKE_AUTHENTICATOR="externalbrowser"  # SSO via browser
+# Optional
+export SNOWFLAKE_AUTHENTICATOR="externalbrowser"  # SSO via browser (default)
 export SNOWFLAKE_WAREHOUSE=""                     # uses account default if empty
 export SNOWFLAKE_ROLE=""                          # uses account default if empty
-export SNOWFLAKE_DATABASE=""                      # uses account default if empty
-export SNOWFLAKE_SCHEMA=""                        # uses account default if empty
 ```
 
+Once connected, use `list_databases` and `list_schemas` to discover what you have access to.
+
 On Windows (PowerShell):
 ```powershell
 $env:SNOWFLAKE_ACCOUNT = "your-account-id"