A declarative Shortcut{Service,Command,Product,Risk,Flags,Validate,Execute}
struct compiled into cobra commands by the runner. RuntimeContext offers
CallMCP (terminal, prints), CallMCPData (multi-step, returns parsed data,
cross-server) and Output (projection honouring --format/--jq/--fields), plus
cross-field validators (MutuallyExclusive/AtLeastOne/ExactlyOne/RangeInt/
RequireAll) and a Register/Commands registry. helpers exports
CallMCPToolTextOnServer so multi-step shortcuts can consume intermediate results.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
