What problem does it solve? AI agents often claim scene changes worked without proof, compounding errors on unverified state. This Skill enforces an evidence-first discipline: snapshot before every mutation batch, diff and screenshot after, and read live runtime state during playtests before making any claim. ## Core Features & Use Cases - Before/after verification loop: Capture a world snapshot before mutating, then run a snapshot diff and screenshot after to confirm exactly what was added, removed, or changed. - Stable viewpoint screenshots: Save camera bookmarks and capture annotated screenshots with numbered labels mapped to node paths, so before/after comparisons line up from the same pose. - Live runtime inspection: Read the actual running scene tree and inspect live node properties during playtests without stopping the game and resetting the bug. - Use Case: After a script places 40 trees in a scene, run the snapshot diff to confirm exactly 40 owned nodes were added, take a bookmarked camera screenshot to check lighting and scale, and cite both as evidence before continuing. ## Quick Start Verify the scene changes you just made by taking a world snapshot diff and a bookmarked camera screenshot, then report what each one proves.
