Research

Neuro-symbolic code generation and harness engineering

Neural CodegenApril 2026

Neuro-Symbolic Code Generation via S-Expression Intermediate Representation and Deterministic Harness Engineering

A neuro-symbolic architecture that constrains LLMs to output S-expressions, validates against typed IR defined as Rust enum whitelists, and deterministically assembles guaranteed-compilable code. 75% Pass@1 compilation rate vs 62% for raw LLM generation.

RustLispS-ExpressionsClaude API
Helper Disconnected