Every Agent I Delegated To Kept Failing. I Finally Checked the Model.

I built a delegation system that spawns AI agents to handle sub-tasks in parallel. Quality sweeps. Code audits. Checking every SDK directory for dead links. The idea: spin up cheap local agents, let them work, collect results. They kept failing. Not crashing — just stopping. No output. No error. 600 seconds of silence, then a timeout. I assumed the tasks were too complex. I assumed parallel delegation was unreliable. I never checked what model I was actually giving them. The Root Cause My delega