Lacis

Lacis is an AI developer tool that adds a "context tree" to AI chat inside your code editor, giving each conversation managed, reusable context the way git branches manage code. You define your identity, rules and skills once as typed branches, and a lightweight router reads each branch's "load when" signal to inject only the context a given request actually needs — which keeps prompts from bloating with information the model doesn't require. You can fork from any reply to explore alternatives, and each exploration keeps its own clean history so separate threads don't bleed into each other. Lacis works with GitHub Copilot or any OpenAI-compatible API, and runs across multiple editors including VS Code, Cursor and Windsurf. It can also generate context trees from a project description or suggest reusable branches for you, lowering the setup cost. The tool is aimed at developers — particularly TypeScript/React teams — who want consistent coding standards and a stable identity across many AI conversations without re-pasting the same context every time. As an AI coding assistant built around branchable, routed context, Lacis targets the conversation-drift and token-bloat problems of long AI chat threads in the IDE.

Managing reusable, branchable AI-chat context inside the IDE so developers keep consistent standards across many coding conversations