Terminal.app (read automatically) iTerm2 (read automatically) Clipboard (you copy the error first) Finds the last error in your terminal, wraps that block in the prompt, and pastes it into the target app for you to send. "Max lines" caps how much gets sent. Running the claude CLI? Set "App" to the terminal you type Claude into (may be the same one you read from). Reading Terminal/iTerm needs Automation permission; pasting needs Accessibility (System Settings › Privacy & Security). Clipboard mode works with any terminal.