once query evidence
List durable evidence records, optionally filtered by subject
Synopsis
text
once query evidence [OPTIONS] [SUBJECT]Description
Evidence records are provenance for action outcomes. They record what happened after once exec, once run, once build, or once test: the subject, status, action digest, input digest when available, cache state, exit code, and captured output digests when available. Evidence is queryable history; it does not change action-cache reuse rules.
Arguments
| Argument | Required | Description |
|---|---|---|
<SUBJECT> | no | Subject id, e.g. cli or cli:test |
Options
| Flag | Value | Default | Description |
|---|---|---|---|
--limit | <COUNT> | Return only the newest matching records | |
-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 |