MAVIS: a personal AI assistant that writes its own tools, subagents and self-reflects

trinitron1f · reddit · 2026-10-21

Reddit user trinitron1f built MAVIS, a personal autonomous AI assistant that can write its own tools and subagents to adapt to user needs, plus an experimental self-reflection loop that picks useful topics to explore and grow its knowledge base.

Design goals emphasize determinism, security, and flexibility. The author published a blog series covering planning, synthesis, security, observability, caching, and self-reflection, open-sourced the repo, and is seeking design feedback.

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