mcp

type Client struct {
	// Name is the config key for this server; it prefixes its tool names and
	// appears in every error, so a failure points at a specific server.
	Name string
	// contains filtered or unexported fields
}

type Error struct {
	Code    int             `json:"code"`
	Message string          `json:"message"`
	Data    json.RawMessage `json:"data,omitempty"`
}

type HTTPConfig struct {
	// URL is the MCP endpoint. Required.
	URL string
	// Headers are sent on every request (an Authorization header, typically).
	Headers map[string]string
	// Client overrides the HTTP client. Nil uses a default one.
	Client *http.Client
}

type Request struct {
	JSONRPC string          `json:"jsonrpc"`
	ID      json.RawMessage `json:"id,omitempty"`
	Method  string          `json:"method"`
	Params  json.RawMessage `json:"params,omitempty"`
}

type Response struct {
	JSONRPC string          `json:"jsonrpc"`
	ID      json.RawMessage `json:"id,omitempty"`
	Result  json.RawMessage `json:"result,omitempty"`
	Error   *Error          `json:"error,omitempty"`
}

type StdioConfig struct {
	// Command is the executable to run. Required.
	Command string
	// Args are its arguments.
	Args []string
	// Env is added to the child's environment as "K=V" entries. The parent's
	// environment is inherited, because these servers routinely need PATH, HOME
	// and a credential the user already exported.
	Env []string
	// Dir is the child's working directory. Empty means the parent's.
	Dir string
}

type ToolDesc struct {
	Name        string          `json:"name"`
	Description string          `json:"description"`
	InputSchema json.RawMessage `json:"inputSchema"`
}

type Transport interface {
	Call(ctx context.Context, method string, params json.RawMessage) (json.RawMessage, error)
	Notify(ctx context.Context, method string, params json.RawMessage) error
	Close() error
}