once runtime
Runtime session inspection and control
Synopsis
text
once runtime [OPTIONS] <SUBCOMMAND>Description
Starts long-lived target runs under a small supervisor and persists their stdout, stderr, and status under <workspace>/.once/runtime/<session>/. runtime status, runtime logs, and runtime stop let agents and humans observe or stop a run after the original command has returned. runtime rpc serves a JSON-RPC control socket for a session that already has runtime metadata.
Options
| Flag | Value | Default | Description |
|---|---|---|---|
-C, --directory | <DIR> | Project root. Defaults to the current directory; the cache lives under <project>/.once/. Mirrors make -C | |
--format | <FORMAT> | human | Output format for Once's structured data (cache stats, run/exec trailers). Defaults to a human-readable rendering; pass json or toon to get machine-parseable output for scripting and for agent consumers |
-v, --verbose | (flag) | 0 | Increase log verbosity. Repeat for more (-v: info, -vv: debug, -vvv: trace). Overridden by RUST_LOG |
-q, --quiet | (flag) | false | Suppress human-mode success and progress trailers. Errors and the structured envelope of --format json/toon still print. Mirrors the -q flag of common build tools |
--list | (flag) | false | Print the command surface at the current command depth |