Harness, a contract handed to the agent
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and we are currently accepting waitlist applications for those who are still waiting to board.
If a seat becomes available due to cancellation, we will notify you in the order of application.
AXPORT is a name that combines AX and Airport. Like a journey to an unfamiliar world, it embodies the meaning of becoming the boarding gate toward the destination of AX. At this gate, top AI & AX speakers will serve as pilots, delivering high-density insights directly on-site.
They even include things that weren't asked for in the plan.
I can't believe it when they say "there's no problem"
It's the same request, but the results are different every time.
If you tell them not to do it, that's all they think about.
Recommended for
I only use Claude Code. Do I need this session?
→The more familiar you become with a single AI tool, the more you might struggle when you need to switch to another one.
You will be able to apply the same principles and harnesses even when you need to switch AI building environments, such as Codex or local LLMs.
There are already many lectures on harnesses, and I've taken them before. How is this one different?
→Most harnesses on the market often only cover the methodology of "how to design."
This session covers everything from the reasoning behind the design to the process of failure and iteration, and even the decision-making criteria, rather than just the methodology.
I am building Ouroboros, an open-source project that integrates multiple coding agent runtimes into a single harness. To overcome the limitations of a single prompt, I will share for the first time at this meetup the systematic criteria I developed while directly integrating the interfaces, state management, and permission handling of eight different runtimes.
GitHub Star Growth Graph
April 2026 → July · 1.1k → 5.0k (approx. 3 months)
🎤 Behind-the-scenes stories shared only on-site
What you can learn from this meetup
Independent design approach
A harness design mindset independent of specific AI CLIs
Decision criteria
Criteria for differentiating the interface, state management, and permission issues of 8 CLIs
Next-step concepts
Meta-harness · Self-Improving Agent · Agent Memory
Practical Open Source Know-how
Release Gate · Contributor Trust · GTM
What you'll gain by participating
Jaegyu discusses the limitations of a single prompt he personally experienced, focusing on actual failure cases. He explains the events that led to the philosophy, "AI coding fails at the input, not the output."
Prompt
How to ask effectively
Harness
How to create an environment
Meta-harness
Harness evaluating harness
Self-improvement
Output as input for the next execution
It addresses interface differences, state management, permissions, and execution environment issues that arose while supporting multiple runtimes such as Claude Code, Codex, and OpenCode.
↓
OUROBOROS Common Language
"Ask the user" — A single contract
A structure where creating one skill allows 8 tools to understand it simultaneously
From 'Meta-Harnesses' that evaluate and improve the harness itself, to 'Self-Improving Agents' that get smarter the more they are used — we share ways to provide a good environment for agents. We also introduce the concept of 'Agent Memory,' which allows agents to have memory.
Prompt = Request 🙏
🤖
An agent that does something different every timeHarness = Contract 📋
🤖
We discuss community feedback, issue management, trust with contributors, release decisions, and the process of discarding failed designs.
A review bot with its own identity, designed with four layers like human memory
Q. Is it offline or online?
A. This page is for offline registration only.
If you only want to attend online, please use the VOD that will be released separately after the event.
Q. Will a meal be provided?
A. Yes, light sandwiches and drinks are included in the participation fee.
You can come straight from work and still participate on a full stomach!
Q. Will there be filming or recording?
A. The venue will be filmed for VOD production.
By attending, you are considered to have consented to being filmed. If you do not wish to be filmed, please inform the organizers in advance.
Q. What happens if I am unavoidably unable to attend?
A. If you let us know at least one day before the event, we will offer the seat to someone on the waiting list.
Please check the refund policy below for detailed cancellation and refund terms.
Q. Is a laptop required?
A. It's not a practice-oriented session, so it's not mandatory, but
you can gain deeper knowledge if you follow along while taking notes on your laptop.
Q. How is on-site entry verified?
A. You can receive your QR code through the link sent the day before the event after payment is completed.
![[VOD] Lee Jae-gyu (Ouroboros) Buildermit - Harness, the contract handed to the agentCourse Thumbnail](https://cdn.inflearn.com/public/files/courses/343420/cover/01kzx5jbjghs8996h7d312bc44?w=420)
