diff --git a/lib/llm/index.js b/lib/llm/index.js
index 0cea814..69389ac 100644
--- a/lib/llm/index.js
+++ b/lib/llm/index.js
@@ -49,11 +49,11 @@ Common context names: local, dev, prod-ro, prod
 
 ### Running Queries
 
-After switching contexts, run queries with the \`query\` subcommand:
+**Always set the context explicitly before every query.** Multiple Claude sessions and users share the same sqlcmd config — another session can switch the context at any time. Never assume the current context is what you expect.
 
 \`\`\`bash
-sqlcmd query "SELECT @@VERSION"
-sqlcmd query -d MyDatabase "SELECT TOP 10 * FROM Users"
+sqlcmd config use-context local && sqlcmd query "SELECT @@VERSION"
+sqlcmd config use-context stage && sqlcmd query -d MyDatabase "SELECT TOP 10 * FROM Users"
 sqlcmd -i ./scripts/query.sql
 \`\`\`