Show HN: Pu.sh – a full coding-agent harness in 400 lines of shell

2026-04-30 | original

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Why This Matters

Pu.sh introduces a lightweight, shell-based coding-agent harness that operates without dependencies like npm, pip, or Docker, making it accessible and easy to deploy. Its minimalistic design emphasizes simplicity and portability, potentially transforming how developers integrate automation into their workflows.

Key Takeaways

Pu.sh is a compact coding-agent harness written in just 400 lines of shell script.
It eliminates the need for complex dependencies, relying solely on curl, awk, and an API key.
Its simplicity and portability make it an attractive tool for quick automation and scripting in various environments.

Pu.sh

a full coding-agent harness in 400 lines of shell.

pronounced exactly how you think.

> a slop cannon small enough to fit your pocket.

copy $ curl -sL pu.dev/pu.sh -o pu.sh && chmod +x pu.sh $ ./pu.sh

no npm · no pip · no docker · just curl, awk, and an api key

Explore topics: pu.sh shell scripting coding-agent curl api key