Sweep the open dependency-bot pull requests once - rebase the stale ones, re-trigger infrastructure failures, and merge the green patch and minor updates. Use when the user wants to baby sit, unblock, or push through pending dependabot pull requests, and on each firing of a /loop that watches them.
Enrich an existing PartCAD part with connection interfaces and ports (mating metadata) so it can be mated to other parts automatically. Use for /pc:add-interfaces or when the user asks to add interfaces, ports, connectors, or mating information to a part, or to make parts snap/connect/assemble together.
Generate a PartCAD assembly (an ASSY that composes parts with placement and/or mates) from a description, generating or reusing the component parts and validating the result with the PartCAD CLI. Use for /pc:gen-assembly or when the user asks to generate or create an assembly, mechanism, or multi-part product.
Use this skill when the task is to change an existing build123d model or script: "make this bracket 5 mm taller", "move the holes inward", "add a counterbore", "remove this rib", "make it fit this mating part", or "repair the code so the intended edit remains parametric".
Use this skill when asked to model, build, or modify a 3D part or assembly with build123d — from a text description, a technical drawing (image or PDF), dimensions in a spec, or an existing STEP/STL file.
Use this skill when validate() or the export() gate reports FAIL on a shape — an imported STEP that arrives broken, or a solid your own construction damaged — and the goal is a watertight, manifold, BRepCheck-valid solid that passes the export gate without changing the geometry beyond the defect itself.
Active MCP-first CAD authoring skill for AIENG Workbench. Use when the user asks to create, design, draft, model, or iteratively build CAD geometry through the active cad. MCP tools. Do not use for solver/result review, schema/library implementation, or editing legacy IR plans.
MCP-first evidence workflow for AIENG CAD/CAE setup, solver preflight, approval-gated solver execution, and result extraction. Use when the user asks to inspect CAE readiness, patch setup, prepare/run CalculiX, or report stress/displacement evidence.
Use when translating an OpenRocket logical design into a physical component tree for FDM/SLA 3D printing. Decides per-component fate (print, fuse, purchase, skip), applies AM-specific geometry patterns, and emits componenttree.json.
Use when producing base geometry (tubes, cones, integrated fins, integral shoulders, motor mount wall thickening, full assembly) from a component tree via build123d. Pass 1 of the CAD pipeline — no holes, no pockets, no detail features (those are Pass 2, see modify-structures).
Use when applying detail features (holes, pockets, vents, mounts) to base STEP files already produced by generate-structures. Pass 2 of the CAD pipeline — reads modifications from the component tree, imports existing base STEPs, and writes modified STEPs back.