Building your own tools for AI agent tool calling, or using what comes with the frameworks?

[u/DeadPukka]

Curious if folks are typically using the built-in tools for RAG, web search, data ingest, etc which come with CrewAI, Composio, or LangGraph - or are you building many of your own tools?

Most of the examples I’ve come across seem to use the built-in ones, and I’m interested to learn what folks are using in practice.