> Your CLI has a new user now. Not a developer at a keyboard, but a coding agent running inside a loop somewhere. It doesn’t read your help text. It hallucinates commands. It guesses flags it’s never seen before and attempts workflows you never designed. And when it fails, it doesn’t open an issue or complain in Slack. It just tries something else.

Most tool builders haven’t noticed yet, but if you run an agent against your CLI for long enough, the difference becomes obvious. Humans explore tools cautiously. Agents explore them aggressively. They probe the interface like a black box, generating plausible commands and seeing what sticks.

The result is something unexpected: agents are revealing the shape of the interface they think should exist.