| name | step-parts |
| description | Find, evaluate, and download common purchasable CAD parts from step.parts, including named off-the-shelf actuators, servos, motors, electronics boards, connectors, screws, bolts, nuts, washers, bearings, standoffs, and other catalog components. Use when Codex needs to search the hosted step.parts catalog before creating simplified placeholder geometry, resolve fuzzy part names, standards, aliases, or dimensions, choose a matching part, fetch a canonical .step file, verify checksums, or use the step.parts API/OpenAPI/catalog endpoints for standard part discovery. |
CAD Parts
Provenance: maintained in earthtojake/text-to-cad.
Use the installed local skill files as the runtime source of truth; the
repository link is only for provenance and release review.
Overview
Use the hosted step.parts machine endpoints instead of scraping HTML or relying on local repository files. Treat https://api.step.parts as the canonical API origin and https://www.step.parts as the site/static-asset origin unless the user provides a different hosted mirror. Network/DNS failures are inconclusive: if api.step.parts cannot be reached from the sandbox, retry once with network permission before reporting a miss or using placeholder geometry. Do not describe a part as unavailable unless the API was reachable and returned no relevant candidates.
When a CAD assembly includes named off-the-shelf actuators, servos, motors, electronics boards, connectors, or other purchasable components, search step.parts before creating simplified placeholder geometry. For named servos, motors, and actuators, search both exact model strings and common aliases/vendor spellings before giving up. For example, STS3215 may also appear as ST3215, 3215, Waveshare Feetech ST3215, or under family=feetech. If the API was reachable and no exact or near-exact match is available, record the search miss and then use a documented envelope or simplified stand-in.
