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JACoB

Maker: Renaissance-Innovation-Labs License: Apache-2.0 Stars: 1 First released: 2024-09-17 Language: TypeScript/JavaScript (Next.js, tRPC, Tailwind, Orchid ORM)

Website → Source Code → Docs →

About

JACoB positions itself beyond autocomplete: assign it a GitHub issue or a Figma design and it produces a complete pull request, having mapped the repository to match existing patterns. A Figma plugin hands it design context, and webhooks let it respond to issues, PRs, and reviews without leaving GitHub. Behavior is tuned through a jacob.config JSON file in the repo, and the project emphasized privacy — no codebase storage, no training on user code — alongside a JACoB Arena benchmark where it compared itself against seven design-to-code tools. The site went dark around December 2025 (jacb.ai no longer resolves), so the entry now stands on the archived Apache-2.0 codebase.