"documentation", "default settings", "output-format", 0.5.2 version

Settings section for toml files still shows concise as default (https://docs.astral.sh/ruff/settings/#output-format):

The style in which violation messages should be formatted: "full" (shows source), "concise" (default), "grouped" (group messages by file), "json" (machine-readable), "junit" (machine-readable XML), "github" (GitHub Actions annotations), "gitlab" (GitLab CI code quality report), "pylint" (Pylint text format) or "azure" (Azure Pipeline logging commands).

Default value: "concise"

While cli outputs full as a default:

--output-format <OUTPUT_FORMAT> Output serialization format for violations. The default serialization format is "full"

And ruff actually uses full if a user doesn't specify it.