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We are t3sh (like "tesh").

Durable AI agents and the developer infrastructure around them.

Our agents carry context across sessions and improve with use. We build the systems required to ship and operate them in production. The focus is AI that becomes more useful over time.

What we care about

INFRASTRUCTURE · DX · AI

Infrastructure, developer experience, AI. We build AI that stays useful past the first session. The core technical problem is long-term memory — systems that persist across sessions and improve with use.


That work sits at the boundary of applied systems engineering and memory research. We build production systems and publish what we learn along the way.

What we're working on

Durable agents

Agents that carry context across sessions and improve with use. Built for continuous deployment, not single-turn interaction.

Developer tooling

Platforms and primitives for engineering teams shipping AI in production.

Research

Applied research feeding directly into our product work. We prototype, measure, and publish findings.