TB SoftwareTim Belvin builds custom software, mobile apps and AI agent solutions. Former Microsoft engineer and fractional CTO with 30+ years of .NET, cloud and integration experience, now focused on agentic systems.https://www.tbsoftware.us/The model isn't the agent: why the harness mattershttps://www.tbsoftware.us/blog/the-model-isnt-the-agent/https://www.tbsoftware.us/blog/the-model-isnt-the-agent/Models provide intelligence. Harnesses turn intelligence into agency. Why the environment around an LLM will decide which AI agents are genuinely useful.Mon, 26 Oct 2026 00:00:00 GMT