Function key

packages/opencode/src/cli/cmd/run/tool.ts:1234–1236

(name: string)

} as const satisfies ToolRegistry

function key(name: string): name is ToolName {
  return Object.prototype.hasOwnProperty.call(TOOL_RULES, name)
}

function rule(name?: string): AnyToolRule | undefined {
  if (!name || !key(name)) {