Explore
Validation Pipeline Inspector
Explore the graduated cost filter: Tier 0 pixel checks, composite scoring, and tier classification.
After a tile is generated, it goes through a triage. Most tiles pass in under 10ms at no cost — six fast pixel checks confirm the seam is clean. A tile that scores ambiguously gets a quick AI look. Only tiles at complex boundaries or with active constraints get the full review. On a 20×20 map this keeps validation cost around $3–4 instead of $16+, with no loss in quality.
It uses a three-tier validation system to minimize cost. Tier 0 runs free pure-code checks (histogram, gradient, SSIM, palette ΔE, repetition). Only borderline or constrained tiles escalate to VLM-based tiers 1 and 2.
Quality gates in under 10ms
After a tile is generated, it must pass quality checks before being accepted. The pipeline runs 6 pure-code checks in under 10ms: histogram similarity (do colors match?), gradient alignment (do textures flow through?), SSIM (structural similarity), palette drift (has the color scheme wandered?), and repetition detection (is this tile identical to its neighbor?). Each check produces a score; they combine into a weighted composite. Tiles scoring 0.6+ pass. Below 0.4 fail. In between? Escalate to AI validation.
What Histogram Checks See
Synthetic Tile Pair
Tile A
Tile B (neighbor)
Check Results
Composite Score
Composite
0.719
Tier Classifier
Tier 1
Tier 1 — VLM Coherence ($0.01-0.03)
• tile is at grid boundary