Update pages/home/glossary.mdx

Co-authored-by: Nate Barbettini <nate@arcade.dev>

Author: evantahler

pages/home/glossary.mdx

@@ -32,7 +32,7 @@ A 'toolkit' is a collection of tools that can be used by an agent, grouped logic
 
 ### Tool Context
 
-A 'tool context' is an object that is passed to a tool when it is called as the first argument.  It contains information about the tool call and the user for which the tool is being called, and any secrets the tool requires to run.
+'Tool context' is an object that is passed to a tool as a parameter when the tool is executed.  It contains information about the tool call, the user for which the tool is being called, and any secrets the tool requires to run.
 
 *Learn more about [tool context](/home/build-tools/tool-context).*