Unity Grid Drag Puzzle

Build the mechanic from its domain rules before connecting input or animation. Use unity-cli for project readiness and verification, and unity-game-dev for the project's stack and code conventions. Read the mechanic recipe before implementing movement, picking, exits, or command validation.

Establish the contract

Inspect existing board models, commands, input, session state and tests. Name allowed paths, owners and verification channels. Follow existing task and serialized-asset approval rules; this skill does not authorize package or asset changes. Reuse the project's dependency and input systems.

Record these player-facing choices from the current design or ask for the missing choices that affect implementation: