Plane MCP Server

Instructions

Implementation Reference

• src/tools/cycle-issues.ts:38-52 (handler)

  Handler function that makes a POST request to the Plane API to add the specified issues to the cycle and returns the response as text content.

  async ({ project_id, cycle_id, issues }) => {
    const response = await makePlaneRequest(
      "POST",
      `workspaces/${process.env.PLANE_WORKSPACE_SLUG}/projects/${project_id}/cycles/${cycle_id}/cycle-issues/`,
      { issues }
    );
    return {
      content: [
        {
          type: "text",
          text: JSON.stringify(response, null, 2),
        },
      ],
    };
  }

• src/tools/cycle-issues.ts:33-37 (schema)

  Zod input schema defining project_id, cycle_id, and issues (array of strings).

  {
    project_id: z.string().describe("The uuid identifier of the project containing the cycle"),
    cycle_id: z.string().describe("The uuid identifier of the cycle to add issues to"),
    issues: z.array(z.string()).describe("Array of issue UUIDs to add to the cycle"),
  },

• src/tools/cycle-issues.ts:30-53 (registration)

  Direct registration of the add_cycle_issues tool on the MCP server, including name, description, input schema, and handler function.

  server.tool(
    "add_cycle_issues",
    "Add issues to a cycle",
    {
      project_id: z.string().describe("The uuid identifier of the project containing the cycle"),
      cycle_id: z.string().describe("The uuid identifier of the cycle to add issues to"),
      issues: z.array(z.string()).describe("Array of issue UUIDs to add to the cycle"),
    },
    async ({ project_id, cycle_id, issues }) => {
      const response = await makePlaneRequest(
        "POST",
        `workspaces/${process.env.PLANE_WORKSPACE_SLUG}/projects/${project_id}/cycles/${cycle_id}/cycle-issues/`,
        { issues }
      );
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(response, null, 2),
          },
        ],
      };
    }
  );

• src/tools/index.ts:22-22 (registration)

  Top-level registration call that invokes registerCycleIssueTools, which includes the add_cycle_issues tool registration.

  registerCycleIssueTools(server);

• src/common/request-helper.ts:3-36 (helper)

  Utility function makePlaneRequest used by the handler to perform HTTP requests to the Plane API with authentication and error handling.

  export async function makePlaneRequest<T>(method: string, path: string, body: any = null): Promise<T> {
    const hostUrl = process.env.PLANE_API_HOST_URL || "https://api.plane.so/";
    const host = hostUrl.endsWith("/") ? hostUrl : `${hostUrl}/`;
    const url = `${host}api/v1/${path}`;
    const headers: Record<string, string> = {
      "X-API-Key": process.env.PLANE_API_KEY || "",
    };
  
    // Only add Content-Type for non-GET requests
    if (method.toUpperCase() !== "GET") {
      headers["Content-Type"] = "application/json";
    }
  
    try {
      const config: AxiosRequestConfig = {
        url,
        method,
        headers,
      };
  
      // Only include body for non-GET requests
      if (method.toUpperCase() !== "GET" && body !== null) {
        config.data = body;
      }
  
      const response = await axios(config);
      return response.data;
    } catch (error) {
      if (axios.isAxiosError(error)) {
        throw new Error(`Request failed: ${error.message}`);
      }
      throw error;
    }
  }