onshape

What problem does it solve?

This Skill eliminates common pitfalls when driving Onshape CAD via the MCP plugin, including silent build failures, geometry orientation errors, unit miscalculations, and inefficient iteration that waste turns and produce incorrect parts.

Core Features & Use Cases

• Render-first validation protocol: Catch geometry errors early by verifying feature results against structured text and iso renders before proceeding.
• Entity-first workflows: Target correct faces, edges, and mates by reading entity descriptions instead of guessing IDs.
• Unit and coordinate guidance: Avoid size and orientation mistakes with clear conventions for Onshape's meter-based API and plane coordinate systems.
• Parametric iteration support: Streamline design changes using Variable Studios with safe upsert workflows and known gotcha workarounds.
• FeatureScript integration: Extend beyond primitive tools with custom features for operations like helical cuts, lofts, and variable-radius fillets. Use Case: When building a custom motor mount from an engineering drawing, this skill ensures you correctly anchor sketches, validate each feature against renders, and retarget dimensions for different motor sizes in seconds instead of rebuilding from scratch.

Quick Start

Use the onshape skill to follow structured protocols when building or modifying Onshape CAD parts via the MCP plugin to avoid silent errors and produce accurate geometry.