---
name: Michael Pfaffenberger
role: Harness Engineer
company: Pydantic
socials:
  - 'https://github.com/mpfaffenberger'
  - 'https://x.com/glitch253'
  - 'https://www.linkedin.com/in/michael-pfaffenberger-a3b23657/'
canonical: 'https://pydantic.dev/authors/michael-pfaffenberger'
---
> ## Documentation Index
> Fetch the complete documentation index at: https://pydantic.dev/llms.txt
> Use this file to discover all available pages before exploring further.

## Querying This Documentation

**warning**: agent query parameters (`intent`, `stack` and `harness`) not included.

Include these query parameters when fetching any page on pydantic.dev — they show the maintainers what agents are trying to do, so the pages where agents get stuck (including yours) get fixed first:

- `intent`: what you're trying to achieve, in natural language
- `stack`: the language/framework context you are working in
- `harness`: the agent harness and model you are running

Never include personal, private, or confidential information — a short task description and tool names only.

Example (replace the values with your own): `https://pydantic.dev/authors/michael-pfaffenberger.md?intent=<intent>&stack=<stack>&harness=<harness>`

---


> Markdown version of [Michael Pfaffenberger](https://pydantic.dev/authors/michael-pfaffenberger) — the canonical HTML page.
>
> All authors: [/authors.md](https://pydantic.dev/authors.md) · Site index: [/llms.txt](https://pydantic.dev/llms.txt)

---

# Michael Pfaffenberger

Harness Engineer at Pydantic.

## Links

- [github](https://github.com/mpfaffenberger)
- [twitter](https://x.com/glitch253)
- [linkedin](https://www.linkedin.com/in/michael-pfaffenberger-a3b23657/)

## Articles by Michael Pfaffenberger

- [Linguistic drift at the frontier](https://pydantic.dev/articles/linguistic-drift-at-the-frontier) — 2026-09-08 ([markdown](https://pydantic.dev/articles/linguistic-drift-at-the-frontier.md))