---
title: "Pydantic"
category: "tools"
aliases: ["Pydantic"]
sourceLabels: ["Official schedule", "Public YouTube metadata", "Transcript evidence", "Local slide OCR", "Topic synthesis"]
scheduleTracks: ["Harness Engineering"]
scheduleRooms: ["Main Stage"]
---

# Pydantic

## Why It Belongs
Pydantic appears as a high-confidence tool, platform, model, protocol, product, or service in the AI Engineer World's Fair 2026 corpus.

This page records confirmed mentions and keeps them separate from broader inferred relevance.

## Confirmed Evidence

### Official Schedule
- [[2026-07-01-giselle-van-dongen-every-step-you-take-every-call-you-make-the-reliable-agent-stack]] — 🎵 Every step you take, every call you make - the reliable agent stack (Harness Engineering / Main Stage)

### Public YouTube Metadata
- [YouTube A48uhxfxbsM](https://www.youtube.com/watch?v=A48uhxfxbsM) — Agent Optimization with Pydantic AI: GEPA, Evals, Feedback Loops — Samuel Colvin, Pydantic
- [YouTube flf_IKnFYnE](https://www.youtube.com/watch?v=flf_IKnFYnE) — From Stateless Nightmares to Durable Agents — Samuel Colvin, Pydantic
- [YouTube o_LRtAomJCs](https://www.youtube.com/watch?v=o_LRtAomJCs) — Human seeded Evals — Samuel Colvin, Pydantic
- [YouTube bmWZk9vTze0](https://www.youtube.com/watch?v=bmWZk9vTze0) — MCP is all you need — Samuel Colvin, Pydantic
- [YouTube pZ4DIH2BVqg](https://www.youtube.com/watch?v=pZ4DIH2BVqg) — Pydantic is STILL all you need: Jason Liu
- [YouTube yj-wSRJwrrc](https://www.youtube.com/watch?v=yj-wSRJwrrc) — Pydantic is all you need: Jason Liu

### Resource Pages
- [[advanced-slide-logic-page-audit]]
- [[talk-video-transcript-map]]
- [[youtube-bmWZk9vTze0]]

### Slide/OCR Pages
- [[youtube--cKUW6n8hBU-reconstructed-slides]]
- [[youtube-bmWZk9vTze0-dense-slides]]
- [[youtube-bmWZk9vTze0-reconstructed-slides]]
- [[youtube-bmWZk9vTze0-slides]]

### Topic Pages
- [[agent-security]]

### Transcript Files
- `raw/sources/youtube-transcripts/-x5GEVnkuRw.txt`
- `raw/sources/youtube-transcripts/B9h9ovW5H9U.txt`

## Confidence
High confidence for presence in the corpus. Interpret broader importance through the linked schedule, transcript, slide, and topic evidence.