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Copperhead

Cursor for circuit boards. An open-source AI agent that designs, documents, and validates.

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Copperhead is an open-source AI engineering platform for hardware teams. It takes a product brief or change request and runs through eight stages (spec, architecture, parts, schematic, layout, outputs, firmware, dev plan), each gated by KiCad verification. It produces a design package with gerbers, firmware and docs, all committed to a git repo.

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