Experimenting with Starlette 1.0 with Claude skills

BlogSimon WillisonMar 22, 2026

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Starlette 1.0 finally ships — the Python ASGI framework that powers FastAPI and half the modern Python web stack. Simon uses Claude skills to explore the new release and port his own asgi-gzip middleware.

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Sponsored by: Honeycomb — AI agents behave unpredictably. Get the context you need to debug what actually happened. Read the blog Starlette 1.0 is out! This is a really big deal. I think Starlette may be the Python framework with the most usage compared to its relatively low brand recognition…

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