What problem does it solve? When YGOPro card script implementations produce wrong results despite following documented skills, the underlying skill documentation itself is wrong or incomplete. This Skill closes that gap by systematically updating API docs, build rules, and comparison guides based on evidence from comparison and debugging sessions. ## Core Features & Use Cases - Trigger-Based Evolution: Activates when script comparison reveals systematic errors (event codes, effect types, helper usage, scoping), made-up functions or constants, undocumented API patterns, or multi-effect cards merged into single effects. - Targeted Documentation Updates: Routes fixes to the correct file — api/procedure.md for helper misunderstandings, api/constants.md for constant usage errors, build SKILL.md for common mistakes and absolute prohibitions. - Verification Loop: Re-runs the triggering comparison after updates and enforces constraints like the 200-line file limit and parent SKILL.md linkage. - Use Case: A comparison reveals a hallucinated constant in generated card scripts. This Skill adds an explicit prohibition to the build skill's Absolute Prohibitions section and verifies the fix by re-running the comparison. ## Quick Start Use the ygopro script self-evolve skill to update the script build documentation based on the errors found in this comparison report.
