KQode

KQode is a Rust-based Coding Agent project for learning and researching Agent Runtime and Harness concepts.

Author's Note

Recently, articles, news, and videos everywhere have been talking about Agent Harnesses. To learn and study the latest Agent Runtime and Harness Engineering techniques, there is no better way than building a Coding Agent similar to Copilot CLI or Claude Code. It also gives me a good opportunity to use Rust, a language I am less familiar with, and get two benefits from one effort.

Our goal is to build a production-grade Coding Agent that can be used for daily work, benchmarked against Codex, Claude Code, and Copilot CLI.

Many technical tutorials are written after the product has already been completed. The author then reorganizes the whole process from the beginning and introduces the overall architecture and implementation details. That approach is very professional. The only downside is that for newcomers to this field, many things are not obvious. They may not have heard of many tools, concepts, or even abbreviations, and without enough background knowledge, the material can be hard to follow. As I write, I will try to make this series approachable for readers at different levels who are new to this field. My experience is limited, so omissions and mistakes are inevitable. I would be grateful for criticism and corrections from experts and peers.

Referenced Coding Agents

This project references major open-source and closed-source Coding Agents, including but not limited to Copilot CLI, Claude Code, Codex, Gemini CLI, OpenCode, and Kimi Code. I would like to express my sincere respect and thanks to the engineers who contributed to these projects.

Name	Homepage	GitHub
GitHub Copilot CLI	GitHub Copilot CLI	github/copilot-cli
Claude Code	Claude Code	-
OpenAI Codex CLI	Codex	openai/codex
Gemini CLI	Gemini CLI	google-gemini/gemini-cli
OpenCode	OpenCode	anomalyco/opencode
Kimi Code CLI	Kimi Code	MoonshotAI/kimi-code
KimiX	-	Sikao-Engine/KimiX
SWE-agent	SWE-agent	SWE-agent/SWE-agent