--- status: accepted --- # Default to JSON everywhere Automation agents are the primary consumers, so the shortest invocation must produce the stable machine interface. The CLI defaults to JSON regardless of whether stdout is a terminal or pipe; human-readable presentation requires `--format human`. Avoiding TTY-dependent format selection ensures that the same command has the same framing and semantics in every execution environment. JSON mode never emits interactive prompts; required confirmation is represented as a structured error and satisfied by an explicit flag. Clap discovery requests are intentionally outside the operation-result protocol. Root and subcommand `--help`, plus `--version`, return conventional plain UTF-8 text on stdout with status 0 and no stderr. They do not initialize the runtime or execute an operation. This narrow exception keeps the CLI self-describing for both people and automation agents without weakening JSON framing for analysis and cleanup commands.