# Tools parameter Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/tools-parameter
> Markdown URL: https://aitinkerers.org/technologies/tools-parameter.md
> Technology record last updated: 2026-05-18T12:23:37Z
> Generated: 2026-09-21T17:41:37Z

The `tools` parameter is the array that registers external functions and capabilities with a Large Language Model (LLM), enabling it to generate structured JSON for real-world actions.

This critical API parameter, typically an array of objects, injects a JSON schema of available functions into the LLM’s context window: it’s how you define the model’s external capabilities. Specifically, the model analyzes the user's prompt against the provided tool definitions (name, description, and parameter schema) to determine if an external action is required. If so, it returns a `tool_calls` object containing the function name and arguments, such as `get_weather(location='Tokyo')`. Your application then executes this external function—like querying a database or calling a third-party API—and passes the result back to the model for a final, grounded response.

- Official technology site: https://platform.openai.com/docs/guides/tool-use
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [My first full-stack LLM app: a demo and learnings](https://denver-boulder.aitinkerers.org/talks/rsvp_q3SWb5nurYY)

Over the few weeks, I built a GPT-powered chatbot that is knowledgeable on Stratechery- a popular tech blog. Although I'm a huge fan of the blog, my main goal was to build a self-sustaining, full-stack LLM app. V1 is now in the wild! I want to take my learnings on this project and carry it into my career- building chatbots and workflows that is relevant to me and my customers' data. In this talk, I hope to share the app, present my learnings, and hear initial feedback from fellow AI tinkerers.

- Event context: AI Tinkerers Denver - March Meetup — 2024-03-19 — Denver
- Public talk page: https://denver-boulder.aitinkerers.org/talks/rsvp_q3SWb5nurYY

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