gemini-cli/packages/server/src/tools/shell.md

This is a minimal shell tool that executes a given command as bash -c <command>. Command can be any valid single-line Bash command. The following information is returned:

Command: Given command. Stdout: Output on stdout stream. Can be (empty) or partial on error. Stderr: Output on stderr stream. Can be (empty) or partial on error. Error: Error or (none) if no error occurred. Exit Code: Exit code or (none) if terminated by signal. Signal: Signal number or (none) if no signal was received. Background PIDs: List of background processes started or (none).