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fvtt-v13-migration

This skill should be used when the user asks to "migrate to V13", "upgrade to Foundry V13", "update module for V13", "fix V13 compatibility", "convert to ESM", "use DataModel", or mentions V13-specific patterns like hook signature changes, actor.system vs actor.data.data, or Application V2. Provides comprehensive Foundry VTT V13 development patterns and migration guidance.

$ Instalar

git clone https://github.com/ImproperSubset/hh-agentics /tmp/hh-agentics && cp -r /tmp/hh-agentics/fvtt-dev/skills/fvtt-v13-migration ~/.claude/skills/hh-agentics

// tip: Run this command in your terminal to install the skill