DCM Optic v8.0: Leaner Grading Engine, Redesigned Card Detail Pages

What's New

DCM Optic v8.0 ships two significant changes: a leaner grading engine and a completely restructured card detail page. Both updates are live now across all six supported card types — Pokemon, MTG, Sports, Lorcana, One Piece, and Other.

Grading Engine: Rubric v8.0

The master grading rubric that powers every DCM Optic grade has been streamlined from v7.3 to v8.0. The goal was clarity and reduced token overhead — tighter instructions mean the AI spends more of its context window actually analyzing your card, not parsing verbose flowcharts.

Key changes:

Compact execution order — The multi-phase flowchart has been replaced with a 10-step linear execution sequence. Same logic, less ambiguity.
Strengthened weakest-link rule — The 1:1 subgrade cap is now explicit in the core rules: if your lowest subgrade is a 7, your final grade is capped at 7. No exceptions.
Cleaner cap priority system — Structural damage, visible defects, defect-based caps, and weakest-link caps are now presented in a flat priority table instead of nested boxes.
Image artifact distinction — Rules 13 and 14 (image artifacts vs. real defects, blur handling) are now permanent core rules rather than addenda.
Card-type deltas updated — All six card-type delta prompts (Pokemon, MTG, Sports, Lorcana, One Piece, Other) have been updated to reference the new rubric structure.

The grading methodology itself hasn't changed — three-pass consensus, dominant defect control, whole-number floor rounding. This is a prompt engineering optimization, not a scoring change.

Card Detail Page Redesign

The card detail page has been rebuilt from a long vertical scroll into a focused hero zone with collapsible accordion sections.

Hero Zone (Always Visible)

The top of the page now shows only what matters at a glance:

Front and back card images with metallic grade labels — clean, no defect markers
Grade hero banner with overall score, condition label, and confidence badge
Sub-score circles for Centering, Corners, Edges, and Surface
Overall condition summary and limiting factor
DCM Estimated Value (when pricing data is available)
Action bar — serial number, download report, share

Collapsible Sections

Everything else lives in eight accordion sections, all collapsed by default:

Card Information — Card metadata, database match, slab detection details
Centering Analysis — Front/back card images, L/R and T/B ratios, quality tier
Corners, Edges & Surface Analysis — Defect overlay maps with numbered markers, toggle, legend, and corner zoom crops
DCM Optic Confidence Score — Confidence letter grade and breakdown
Market Value — PriceCharting data, search links, estimated values
Estimated Mail-Away Grade Scores — PSA, BGS, SGC, CGC projections
Insta-List on eBay — eBay auction listing tool (card owner only)
DCM Optic Report — Full conversational grading narrative

Defect Overlay System

Defect markers have been moved off the hero card images and into the Corners, Edges & Surface section. Each defect is plotted as a numbered marker on the card image with a clickable legend. Front and back images each have independent overlays with a toggle to show/hide markers.

What Was Removed

CenteringDiagram SVG — Replaced with the existing card images and ratio text
6 legacy sections — Category Breakdown Scores, Legacy Confidence, Card Detection Assessment, Execution Control, Legacy Front/Back Analysis, and OCR Transcription have been removed
Defect markers on hero images — Moved into the dedicated analysis section
14-step tour — Rewritten to 12 steps with auto-expand/collapse behavior for accordion sections

Slab Detection

For cards detected in professional grading slabs (PSA, BGS, CGC, SGC), corner zoom crops are now automatically hidden since they would show the slab label rather than the actual card corners.

Technical Notes

All changes apply uniformly across all six card types
Four new shared components: CollapsibleSection, DefectOverlay, DefectLegend, CornerZoomCrops
Net reduction of ~4,200 lines across the codebase (7,554 removed, 3,326 added)
The guided onboarding tour dynamically expands and collapses accordion sections as it progresses through each step

These updates are live now at dcmgrading.com. Grade a card and see the new layout in action.