Open source repo

What's inside PrefectHQ/prefect

PrefectHQ/prefect is a Python repo with 945,152 lines written in 2,114 files. prefect is built with FastAPI, starlette, uvicorn, and 7 more and uses Redis, Postgres, and SQLite. AI signed 9.7% of the 18,695 commits of prefect.

Its description on GitHub: “Prefect is a workflow orchestration framework for building resilient data pipelines in Python.”

PythonApache-2.024,112

Read on November 4, 2026, at commit 60d9ea5.

What the card proved: what it’s built with on the left, what it uses on the right.

See each one with its proof

More on this repo

TechnologiesWhat is prefect built with?prefect is built with FastAPI, starlette, uvicorn, and 7 more and uses Redis, Postgres, and SQLite.

+42 Who writes itHow much of prefect did AI write?9.7%AI signed 9.7% of the 18,695 commits of prefect.

In figures

lines written: 945,152; The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
files: 2,114; The product’s, not counting tests.
test files: 1,242; The files that test the code.
technologies: 50; Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

Frequently asked questions

What is PrefectHQ/prefect?

PrefectHQ/prefect is a Python repo with 945,152 lines written in 2,114 files. Its description on GitHub: “Prefect is a workflow orchestration framework for building resilient data pipelines in Python.”

The proof: its page on GitHub

What is prefect built with?

prefect is built with FastAPI, starlette, uvicorn, and 7 more and uses Redis, Postgres, and SQLite.

The proof: each service with its file and line

How much of prefect did AI write?

AI signed 9.7% of the 18,695 commits of prefect.

The proof: the commits each tool signed

What license does prefect have?

prefect is released under the Apache-2.0 license.

The proof: its page on GitHub

How many stars does prefect have on GitHub?

prefect had 24,112 stars on GitHub on November 4, 2026.