metatron

Metatron is a self-hosted system that captures a codebase's real implementation decisions—preferred patterns, rejected approaches, edge cases, internal conventions—as structured data. It serves these "decisions" to coding agents via MCP, allowing them to write code like a senior engineer who deeply understands the codebase, rather than constantly rediscovering conventions.

metatron is currently grouped under Code Assistant, which makes it easier to evaluate through workflow fit instead of isolated features alone. Based on the available data, it leans most heavily toward Structured Decision Capture and Ensuring AI agents adhere to codebase conventions.. The listed license is MIT, which is useful when adoption constraints matter. It also shows measurable community traction with 20 GitHub stars.