Restrict shell_command to a single local environment - #36329
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## What changed - Register the legacy `shell_command` handler only when exactly one local environment is available, including when unified exec keeps it hidden for compatibility. - Reserve the unnamespaced `shell_command` name so external tools cannot claim it when the built-in handler is unavailable. Namespaced tools with that name remain supported. ## Testing - Cover remote and multiple-environment tool plans, unified exec routing, and external tool registration for reserved and namespaced variants. GitOrigin-RevId: 93834539b31ac8a7fea072bfa4de792bcc3e053b
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Restrict
shell_commandto a single local environmentWhat changed
shell_commandhandler only when exactly one local environment is available, including when unified exec keeps it hidden for compatibility.shell_commandname so external tools cannot claim it when the built-in handler is unavailable. Namespaced tools with that name remain supported.Testing