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Kon is a minimal coding agent (and also a highly opinionated one)

322 starsPython

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

by krumboy·May 7, 2026·2 points·0 comments
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AI Analysis

●●●BangerBig BrainZero to One

270-token system prompt beats Cursor's bloat by forcing strict context limits.

Strengths
  • •Hard 270-token system prompt limit forces efficient context usage over verbosity.
  • •User-owned context files like AGENTS.md prevent vendor lock-in and cloud leaks.
  • •Session handoff and compaction features enable long-running tasks without context explosion.
Weaknesses
  • •Only six default tools may require heavy customization for complex enterprise workflows.
  • •Relies on external providers for models, so local LLM performance varies wildly.
Target Audience

Developers frustrated with bloated AI coding assistants

Similar To

Cursor · Aider · Open Interpreter

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