An AI agent that lives in your OS, acts before you ask, and writes its own tools. Self-hosted. Open source. Windows.

Five things it does that others don't

Leontes is built around a set of modules that work together — not a collection of disconnected features bolted on top of an LLM.

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Sentinel

Watches your file system, clipboard, calendar, and active window. Triggers suggestions or actions without you asking. It notices before you do.

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Structural Vision

Reads application UI via Windows UI Automation — no screenshots, no pixel matching. Sees buttons and fields as structured code, not images.

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Synapse Graph

A knowledge graph linking people, files, and projects. "Send this to the lead dev" resolves the person from your Git and email history.

⚙️

Tool Forge

When the agent hits a capability gap, it writes a new tool class, compiles it, runs a test, and asks you to approve. Nothing runs without your sign-off.

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CLI + Signal

Talk to it from your terminal or message it from your phone via Signal (E2E encrypted). Same context, same memory, same agent.

Early development

MVP in progress

Core modules are being built. No release yet — but the architecture is solid, the scope is locked, and the code is public. Star the repo to follow along.

★ Follow progress on GitHub