Agent harnesses
The interface and backend that run agent loops and model calls. This is the code that lets an AI agent plan, call tools, check results, and carry on.
We build software that works in loops, with a person in charge of what ships. Custom software, AI consultancy and web design, focused on agentic systems.
The interface and backend that run agent loops and model calls. This is the code that lets an AI agent plan, call tools, check results, and carry on.
The tools agents use to read code, run tests, and call services, and the limits that keep them safe and under review.
How teams plan, review, and test work done with AI coding agents, and keep a person in charge of what ships.
We design and build software for a specific job, from a first working prototype to a system your team uses every day. We start by understanding the work and the people who do it, then build in small steps you can review.
We help you decide where AI fits in your work, what it would take to build, and what could go wrong. You get a clear recommendation and a plan you can act on, whether or not you hire us to carry it out.
We design websites that are clear, quick to load, and easy to use with a keyboard or a screen reader. We shape the structure, the words, and the look, then build the site in plain, maintainable code.
Illustrious Labs was founded in 2026 as an independent software studio. We build custom software, advise on AI, and design websites, with a focus on agentic software: systems in which AI agents plan, use tools, and carry out work.
We start with the problem, not the technology. Before we write code, we agree what success looks like, what the constraints are, and who will use the result. We work in small steps you can review, and we show working results early rather than at the end. We use AI coding agents as working tools, and we review everything they produce before it goes anywhere. If we are not the right fit for your problem, we will say so.
Illustrious Labs SARL-S is being formed. We will take on client work once the company's registration is formalized, and we will say so here.
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