OverviewHistoryStatsSecurity
npx skills add ...
Documentation
SKILL.md
npx skills add earthtojake/text-to-cad --skill step-parts
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.
npx skills add earthtojake/text-to-cad --skill step-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.
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.
q for fuzzy tokens, standards, aliases, dimensions, source/product URLs, and attribute names/values.category, family, standard, or tag when the user gives an exact facet./v1/parts and inspect items, total, and facets. For actuator model numbers, retry likely aliases, dropped letters, vendor names, and relevant family facets before treating an empty result as a miss.id, name, standard, and key attributes before choosing. If one result clearly matches, return the selected record details without downloading unless the user asked for a local STEP file.stepUrl, then verify the file with the record's sha256 when present.After completing step.parts work that creates or updates a local .step or .stp file, you must ALWAYS hand the explicit file path to $cad-viewer when that skill is installed. $cad-viewer must start CAD Viewer if it is not already running and return link(s) to the relevant created or updated file(s); if $cad-viewer is unavailable or startup fails, report that instead of silently omitting the handoff.
Use scripts/download_step_part.py for deterministic search, download, and checksum verification:
Useful options:
--origin: override https://api.step.parts only when the user provides another hosted API origin.--tag, --category, --family, --standard: repeatable facet filters.--out-dir: override the download directory when the user asks for a specific destination.--all: with --download, download every result on the returned page as individual STEP downloads.--overwrite: replace an existing output file.The script prints JSON to stdout. For searches, it prints matched records. For downloads, it prints saved file paths, checksums, and source URLs.
Read references/step-parts-api.md when you need endpoint details, field meanings, or query semantics. Prefer:
/v1/parts for filtered search with absolute asset URLs./v1/parts/{id} for one enriched record.stepUrl for STEP downloads./v1/catalog/parts.index.json for a compact discovery index./v1/catalog/schema for field and family attribute meanings./v1/openapi.json when generating a client or tool.M3 SHCS 12 before adding exact family and standard filters.tag, category, family, and standard fields are ANDed together. Use exact facets to narrow within known categories, then rank manually by name and attributes.ISO 4762, ISO4762, or the exact standard.designation.attributes object contains family-specific facts such as thread, lengthMm, bore1Mm, material, profileSeries, slotSizeMm, and dimensions in millimeters.https://www.step.parts; STEP URLs are environment-aware and may resolve to GitHub LFS media in production. Use catalog/API stepUrl for downloads.