Doppler MCP Server

Instructions

Implementation Reference

• src/doppler.ts:79-82 (handler)

  Switch case within buildDopplerCommand that constructs the Doppler CLI command 'doppler projects list --json' to execute the tool logic for listing Doppler projects.

  case "doppler_projects_list":
    parts.push("projects", "list");
    parts.push("--json");
    break;

• src/tools.ts:91-98 (schema)

  Tool schema definition for doppler_projects_list, including name, description, and empty input schema (no parameters required).

  {
    name: "doppler_projects_list",
    description: "List all Doppler projects",
    inputSchema: {
      type: "object",
      properties: {},
    },
  },

• src/index.ts:27-31 (registration)

  Registration of tool list handler that exposes the doppler_projects_list tool via the toolDefinitions array in MCP ListToolsRequest.

  server.setRequestHandler(ListToolsRequestSchema, async () => {
    return {
      tools: toolDefinitions,
    };
  });

• src/index.ts:34-51 (handler)

  MCP CallTool request handler that dispatches to executeCommand based on tool name, handling the execution and response formatting for doppler_projects_list.

  server.setRequestHandler(CallToolRequestSchema, async (request) => {
    const { name, arguments: args } = request.params;
  
    try {
      const result = await executeCommand(name, args || {});
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2),
          },
        ],
      };
    } catch (error) {
      const errorMessage = error instanceof Error ? error.message : String(error);
      throw new McpError(ErrorCode.InternalError, `Doppler CLI error: ${errorMessage}`);
    }
  });