How do I allow or block tools for one Line CLI run?

How-toUpdated November 2, 2026

line -p "run the tests and fix failures" \
  --allowed-tools "bash(npm test*),read_file,Edit(src/**)" \
  --disallowed-tools "web_fetch,web_search"

--allowed-tools: rules that run without asking.
--disallowed-tools: rules that are denied; a bare tool name (like bash) removes the tool entirely.

They use the same rule syntax as permissions in settings and apply to that run only.

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