Schema Cleaner — JSON Schema Normalization

Clean JSON Schemas for optimal LLM tool-calling compatibility across different providers.

Overview

Different LLM providers support different subsets of JSON Schema. This skill:

• Provider-Specific Cleaning: Remove keywords unsupported by each provider
• Reference Resolution: Inline $ref entries from $defs and definitions
• Union Flattening: Convert anyOf/oneOf with literals into enum
• Nullable Handling: Strip nullable variants from unions and type arrays
• Const Conversion: Convert const to single-value enum
• Circular Detection: Detect and safely handle circular references

Provider Compatibility Matrix