#function calling

Your agent keeps calling the wrong tool or passing bad arguments, and you blame the model. The real lever is the tool description and its JSON schema: the model picks and fills every tool from that alone. Here is how to write ai agent tool descriptions like onboarding docs for a

Muhammad Qasim Hammad·July 23, 2026·7 min

You keep seeing function calling, tool use, and MCP used as if they compete. They do not. Tools are the functions, function calling is the model mechanism that calls them, and MCP is the standard that shares them across clients. Here is how the three layers stack and which to

Muhammad Qasim Hammad·July 10, 2026·9 min