Claude Code Mods Conceptual explainer. Original diagram by AgentGrid. Timing mode: audio. Duration: 36.633s. Spoken words below are the reviewed voiceover cells. Burned-in captions are the shorter on-screen lines. 1 What do you keep checking while your coding agent works? Start there when you customize it. 2 Mods can customize Claude Code's interactive terminal. An Agent SDK session does not display their interface. Choose the surface before the extension. 3 Try a small branch-display experiment. Inspect its implementation, then plan independent checks with Git. 4 Use a supported runtime, keep the first trial separate from important work, and know how to turn the mod off. 5 The article walks through the choices. Keep your experiment and its verification together in AgentGrid.