cline/proto/mcp.proto

syntax = "proto3";

package cline;
option java_package = "bot.cline.proto";
option java_multiple_files = true;

import "common.proto";

service McpService {
  rpc toggleMcpServer(ToggleMcpServerRequest) returns (McpServers);
  rpc updateMcpTimeout(UpdateMcpTimeoutRequest) returns (McpServers);
  rpc addRemoteMcpServer(AddRemoteMcpServerRequest) returns (McpServers);
}

message ToggleMcpServerRequest {
  Metadata metadata = 1;
  string server_name = 2;
  bool disabled = 3;
}

message UpdateMcpTimeoutRequest {
  Metadata metadata = 1;
  string server_name = 2;
  int32 timeout = 3;
}

message AddRemoteMcpServerRequest {
  Metadata metadata = 1;
  string server_name = 2;
  string server_url = 3;
}

message McpTool {
  string name = 1;
  optional string description = 2;
  optional string input_schema = 3;
  optional bool auto_approve = 4;
}

message McpResource {
  string uri = 1;
  string name = 2;
  optional string mime_type = 3;
  optional string description = 4;
}

message McpResourceTemplate {
  string uri_template = 1;
  string name = 2;
  optional string mime_type = 3;
  optional string description = 4;
}

enum McpServerStatus {
  // Protobuf enums (in proto3) must have a zero value defined, which serves as the default if the field isn't explicitly set. 
  // To align with the required nature of the TypeScript type and avoid an unnecessary UNSPECIFIED state, we map one of the existing statuses to this zero value.
  MCP_SERVER_STATUS_DISCONNECTED = 0; // default
  MCP_SERVER_STATUS_CONNECTED = 1;
  MCP_SERVER_STATUS_CONNECTING = 2;
}

message McpServer {
  string name = 1;
  string config = 2;
  McpServerStatus status = 3;
  optional string error = 4;
  repeated McpTool tools = 5;
  repeated McpResource resources = 6;
  repeated McpResourceTemplate resource_templates = 7;
  optional bool disabled = 8;
  optional int32 timeout = 9;
}

message McpServers {
  repeated McpServer mcp_servers = 1;
}