SchemaFit

About SchemaFit

SchemaFit is an MIT-licensed CI linter for LLM structured-output schemas. It checks JSON Schema, tool definitions, and response_format schemas against provider-specific constraints before runtime. It catches unsupported keywords, nesting issues, required/optional mismatches, and portability problems across OpenAI, Anthropic, Gemini, Mistral, and Cohere, so teams can fail PRs instead of production calls.

The person behind SchemaFit

• 
  Dan Mercede

  Maker

  Building fail-closed AI agent tooling

  Email not found yet