Gemini-3-Flash: My ai agent benchmark terminalbench Win & 3 Fixes

This article was originally published on BuildZn . Everyone talks about building AI agents that "just work," but nobody tells you how much low-level crap you debug to get there. I spent weeks wrestling with gemini-3-flash-preview on TerminalBench, hitting every wall from bad tool calls to silent API failures. Figured it out the hard way. Why TerminalBench Matters for AI Agent Benchmark Look, benchmarks are usually fluff. But TerminalBench is different. It’s a real-world gauntlet for AI agents, p