capwitf/mechanical-cad-skills/jixie-fuke

Jixie Fuke

Overview

Use this project-local wrapper as the discoverable skill entry for mechanical reference replication. It keeps the deeper root-level jixie-fuke rules reachable from the local .codex/skills skill cluster.

Detailed Rule Source

If ../../../jixie-fuke/SKILL.md exists relative to this skill directory, read it before doing reference replication work. Treat it as the detailed local rule set for:

• reference decomposition,
• local region comparison,
• crop comparison reports via cad-region-compare when PDF/image regions are available,
• source-level CAD fixes,
• loop verification,
• mechanical drafting review,
• final reference-match reporting.

If that file is missing, continue with the compact rules below and report that the detailed root rule set was unavailable.

Compact Rules

• Use this skill only when a reference drawing, screenshot, PDF, scan, DWG/DXF, or existing CAD output exists.
• Do not use reference matching for no-reference original design; use cad-original-design instead.
• Split the reference into local regions before editing: sheet layout, views, sections, local features, hatches, line types, dimensions, title block, BOM, and notes.
• Compare the final output against the reference by local crop or zoomed region, not only a whole-page preview.
• Use cad-region-compare for high-risk rendered PDF/image crops when possible.
• Use cad-reference-acceptance before claiming a reference match is ready; whole-page similarity or a few broad crops are not enough.
• Fix the source of truth: CAD model, drawing, script, SolidWorks document, or FreeCAD file.
• Regenerate final outputs and re-check from the delivered files.

Handoff

Use with:

• cad-reference-match as the cluster-level reference-matching entry.
• cad-reference-acceptance for numbered grid acceptance, minimum/worst-cell reporting, and visual-vs-editable CAD claim separation.
• cad-region-compare for rendered PDF/image crop metrics and diff images.
• cad-visual-layout when the matched drawing also needs formal sheet quality.
• cad-evidence-ledger to record reference/output crops, regenerated files, hashes, and comparison claims.
• cad-final-verification before reporting ready.

Common Mistakes

• Claiming "matches" from a full-page screenshot.
• Missing small shaft shoulders, holes, hatches, sections, or dimension chain differences.
• Fixing only the preview while the CAD source remains stale.
• Using this skill when there is no reference to imitate.