developing-genkit-python

SKILL.md

Build AI applications in Python using Genkit with flows, tools, and multiple model providers.

Requires Python 3.14+, uv package manager, and the Genkit CLI; Google AI is the default provider with GEMINI_API_KEY environment variable

Supports structured output, streaming, flows, tools, embeddings, and evaluators through a unified async API

Includes FastAPI integration for HTTP endpoints and parallel flow execution, plus .prompt file support for prompt templates

Use ai.run_main() as the entrypoint for Genkit-driven apps; always verify imports and APIs against references due to frequent SDK changes

Genkit Python

Prerequisites

Runtime: Python 3.14+, uv for deps (install).

CLI: genkit --version — install via npm install -g genkit-cli if missing.

New projects: Setup (bootstrap + env). Patterns and code samples: Examples.

Hello World

from genkit import Genkit
from genkit.plugins.google_genai import GoogleAI

ai = Genkit(
    plugins=[GoogleAI()],
    model='googleai/gemini-flash-latest',
)