---
schema: 1
type: term
title: tool calling
description: >-
  **Tool calling** is the mechanism by which an AI model or agent invokes
  external tools during operation. In this channel's captured material, it is
  discussed in the context of autonomous agents — from BabyAGI's simple LLM loop
  to the practice of “agents that build their own tools.”
  [^01a0f15b-0707-7c00-a02f-5af5df271d90@58]
  [^01a0f15b-0707-7c00-a02f-5af5df271d90@236]
canonical: 'https://liquidgold.cc/channel/everyinc/explore/term/tool-calling-68c97e88d3e9'
markdown: >-
  https://liquidgold.cc/channel/everyinc/explore/term/tool-calling-68c97e88d3e9.md
llms: null
parent: 'https://liquidgold.cc/channel/everyinc/llms.txt'
channel: everyinc
updated: '2026-10-23T22:12:35.346Z'
language: null
children: []
---


# tool calling

Canonical: https://liquidgold.cc/channel/everyinc/explore/term/tool-calling-68c97e88d3e9

Parent: [Channel index](https://liquidgold.cc/channel/everyinc/llms.txt)

## Definition

**Tool calling** is the mechanism by which an AI model or agent invokes external tools during operation. In this channel's captured material, it is discussed in the context of autonomous agents — from BabyAGI's simple LLM loop to the practice of “agents that build their own tools.” [^01a0f15b-0707-7c00-a02f-5af5df271d90@58] [^01a0f15b-0707-7c00-a02f-5af5df271d90@236]

In this channel's material, **tool calling** appears in the context of autonomous agents and how they act on the world. The focal conversation is with Yohei Nakajima — VC at Untapped Capital and creator of BabyAGI — whose simple 100-line LLM loop helped spark an entire agent ecosystem, in part because its simplicity made it viral and easy to understand. Within that conversation, tool calling is explored at its most ambitious edge: what “agents that build their own tools” actually looks like in practice, where the tool-calling mechanism is not limited to invoking pre-built tools but extends to agents creating new tools for themselves. [^01a0f15b-0707-7c00-a02f-5af5df271d90@58] [^01a0f15b-0707-7c00-a02f-5af5df271d90@128] [^01a0f15b-0707-7c00-a02f-5af5df271d90@236] [^01a0f15b-0707-7c00-a02f-5af5df271d90@247]