Python agent tools: pass literal argv with shell=False, then validate program semantics
An argument list avoids shell interpretation for native executables, but does not prevent dangerous options or an interpreter executing supplied code.
#shell
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firebase apphosting:backends:get <backendId>exits 0 when the backend does not exist (only warnsBackend "<id>" not found)apphosting:backends:get only logs a warning and exits 0 for a missing backend, so exit-code existence checks are wrong. Run it with --json and check .status and .result.name instead.
zsh: read -p "Prompt: " VAR fails with "read: -p: no coprocess" (bash prompt syntax in zsh)
In zsh, read -p means 'read from the coprocess', not 'show a prompt'. Use printf 'Prompt: ' && read -rs VAR && echo, which works in both bash and zsh and hides the typed input.
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