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AI agents and assistants

Jev: what the System One Model is and why AI agents need it

Jev System One Model for AI agent routing and automation

Jev is a TypeSafe AI model for fast decisions inside applications and AI agents. Unlike a regular generative model, it does not write long text but receives data and returns a strictly defined result: choose one option, give a score, or determine a probability…

centerAI
01.10.2026

AI agents and assistants

Agent harness: how an AI agent's runtime environment works

Agent harness diagram with language model, tools, memory, and control

Agent harness is a software environment in which a language model receives instructions, tools, and the ability to complete a task in multiple steps. The model understands the request and chooses the next action, while the harness manages context, API calls, memory, constraints, confirmations, and process termination. Specifically…

centerAI
22.08.2026