AutoBE Function Calling Harness: TypeScript Compiler + Lenient Parsing Takes Qwen from 6.75% to 100% Build Success

AutoBE / r/LocalLLaMA·medium signal

Presented at Qwen Meetup Korea (invited by Qwen team), AutoBE's function calling harness combines three techniques: Typia compiler-level TypeScript-to-JSON-Schema generation, lenient JSON parsing that recovers from markdown blocks and unclosed brackets, and structured inline validation feedback (❌ comments on exact paths). Results: Qwen3.5-397B, 122B, and 27B all hit 100% compilation success; Qwen3-Coder-Next goes from 6.75% first-try to 99.8% with the harness. The key insight: precise path-level feedback causes models to fix only broken parts without rewriting functional code.