High-precision shape and symbol analyzer for blueprint takeoffs. Decomposes any symbol into constituent elements (base shape, interior marks, fill patterns, edge treatments, corner accents). Uses multi-pass verification with zoom-in analysis for overlapping lines. Calculates confidence scores per element. ALWAYS flags symbols below 95% certainty for human confirmation. Triggers on phrases like analyze symbol, identify shape, symbol breakdown, shape components, what symbol is this, describe this shape, blueprint symbol analysis, match symbol to legend, symbol confidence check.