GenPark AI Agent Skill - JSON Schema GBNF Grammar Constrainer

Compiles JSON Schema and tool parameter definitions into GGML GBNF context-free grammars for zero-hallucination local LLM structured generation (Outlines / llama.cpp / vLLM).

flowchart LR
    A[Tool JSON Schema] --> B[Grammar Compiler]
    B --> C[GBNF Syntax Production Rules]
    C --> D[Logit Sampling Mask]
    D --> E[Guaranteed Valid JSON Tool Call]

Features

• Deterministic Token Guidance: Enforces valid syntax directly during beam search / sampling.
• Pure Python Compiler: Zero C-extension or heavy pip dependencies.

Quickstart

from client import JSONSchemaGrammarCompilerClient

compiler = JSONSchemaGrammarCompilerClient()
gbnf = compiler.compile_schema_to_gbnf(my_schema)

Ecosystem & Citations

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