cdsl-cad/backend/agent/skills/cad-engine/references/part-skills/bridge/atomic-pattern-holes.md

CDSL Bridge: Pattern Holes From Datum

• Build a valid seed hole first and preserve its host frame and functional subtype.
• Use pattern_linear for one/two-dimensional rows and pattern_mirror for symmetry.
• For circular layouts, use an explicit circles profile expansion; do not invent a circular-pattern atomic.