Show HN: Kon – A Coding Agent with a System Prompt under 270 tokens

Category: devtools

Tags: coding-agent, terminal, cli-tool, ai, python

Score: 6.3/10 (Innovation: 6, Technical: 6, Documentation: 7, Utility: 6)

Kon is a minimal terminal-based coding agent that prioritizes a tiny core system prompt (under 270 tokens) and a small set of built-in tools, while allowing project-specific context to be layered on top via configuration and an AGENTS.md file. Its interesting value lies in its extreme minimalism and transparency, making it easy to understand, fork, and adapt without inheriting a large framework.

Target audience: backend devs

Repository: https://github.com/0xku/kon · Python · MIT · 282 stars

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