Altium Copilot

Altium Copilot gives Claude read access to an open Altium project, grounded in the actual design files. The user asks about component values, traces a net across sheets, checks routing against design rules, pulls a per-variant BOM, or requests a schematic review, and the copilot answers from the project itself instead of a pasted netlist. It reads the .PrjPcb project, schematics, board, design rules, BOM, DRC report, and design notes. It is read-only for now: it only extracts data and cannot modify a schematic, move components, or overwrite the .PrjPcb file.

Two specialist modes activate automatically from what the user says. Schematic review runs a three-phase structured audit: Claude reads datasheets and confirms its understanding before flagging anything, and every finding cites a datasheet value or a netlist fact, with the report saved to markdown. Brainstorm circuits runs a five-phase design session: it reads the loaded schematic first, then asks one question at a time and proposes two or three topologies with tradeoffs before recommending anything.

PCB awareness reads the .PcbDoc directly, so the user can ask where nets route, what runs near what with crosstalk proximity and parallel run lengths, the full layer stackup, and where components sit with side, rotation, and nearest parts. Data refreshes automatically as the design changes. It runs on Windows as a local MCP extension, and the README links a writeup on the author's site.