jikime/harness-lab

Overview

This project is based on the skills of Mr. Hwang Min-ho from Kakao, who created Revfactory/Harness, and has been restructured to fit the educational flow to make harness engineering easier to practice. Once again, I deeply thank Mr. Hwang Min-ho for sharing valuable public materials and ideas. This project is a training skills project that separates harness engineering by execution environment, allowing hands-on practice in Claude Code and Codex CLI respectively. The goal is to help users develop a sense of transforming their daily tasks or small projects into Agent, Skill, Orchestrator, Test, and Evolution structures. Claude Code and Codex CLI differ in where skills are installed and where agent files are stored. So, even for skills with the same training goals, I kept the folders separated. The agents/ folder contains an example educational Subagent that you can copy to the .claude/agents/ file in Claude Code and experiment with. At first, rather than installing all seven, it is recommended to select only 2~3 items that are close to your practice topic. Rather than creating files right away, harness-lab first shows blueprints and, once users approve, creates a viable harness configuration. The generated execution harness includes guidance to connect natural language requests to the Orchestrator Skill. It also includes deliverables contracts to leave summaries, research notes, drafts, review sheets, final results, and improvement records in artifacts/. So from now on, even without memorizing skill names, saying something like "Reorganize the family trip itinerary" will help the project guide file use the Orchestrator as the overall progress chart first, allowing you to read previous deliverables and continue.

Overview (machine translated)

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