db_set_scaling

Instructions

Implementation Reference

• src/tools/databases/index.ts:68-74 (handler)

  Handler function for db_set_scaling tool. Validates write permissions, builds a request body with cpu/memory/disk scaling parameters, and sends a PATCH request to the IBM Cloud Databases API to update scaling configuration.

  }, async (p) => safeTool(async () => { w();
    const body: Record<string,unknown> = {};
    if(p.cpu_allocation_count) body.cpu={allocation_count:p.cpu_allocation_count};
    if(p.memory_mb) body.memory={allocation_mb:p.memory_mb};
    if(p.disk_mb) body.disk={allocation_mb:p.disk_mb};
    return client.patch(`${base(p.region||r)}/deployments/${encodeURIComponent(p.deployment_id)}/groups/${p.group_id||"member"}`, body);
  }));

• src/tools/databases/index.ts:65-67 (schema)

  Zod schema defining input parameters for db_set_scaling: deployment_id (required), group_id (optional), cpu_allocation_count (optional number), memory_mb (optional number), disk_mb (optional number), region (optional string).

  deployment_id: z.string(), group_id: z.string().optional(),
  cpu_allocation_count: z.number().optional(), memory_mb: z.number().optional(), disk_mb: z.number().optional(),
  region: z.string().optional(),

• src/tools/databases/index.ts:64-74 (registration)

  Registration of db_set_scaling tool on the MCP server via server.tool(), within registerDatabaseTools() function. Registered along with 9 other database tools in the same file.

  server.tool("db_set_scaling", "Set scaling for a database deployment", {
    deployment_id: z.string(), group_id: z.string().optional(),
    cpu_allocation_count: z.number().optional(), memory_mb: z.number().optional(), disk_mb: z.number().optional(),
    region: z.string().optional(),
  }, async (p) => safeTool(async () => { w();
    const body: Record<string,unknown> = {};
    if(p.cpu_allocation_count) body.cpu={allocation_count:p.cpu_allocation_count};
    if(p.memory_mb) body.memory={allocation_mb:p.memory_mb};
    if(p.disk_mb) body.disk={allocation_mb:p.disk_mb};
    return client.patch(`${base(p.region||r)}/deployments/${encodeURIComponent(p.deployment_id)}/groups/${p.group_id||"member"}`, body);
  }));

• src/tools/databases/index.ts:8-9 (helper)

  Helper to build the base URL for IBM Cloud Databases API using the region-specific endpoint pattern https://api.{region}.databases.cloud.ibm.com/v5/ibm.

  const base = (r: string) => IBM_ENDPOINTS.DATABASES(r);
  const w = () => assertWriteAllowed(config.allowWrite);

• src/lib/utils.ts:70-77 (helper)

  Utility wrapper that executes the tool's callback safely, returning a success or error MCP response.

  export async function safeTool<T>(fn: () => Promise<T>): Promise<ReturnType<typeof successContent> | ReturnType<typeof errorContent>> {
    try {
      const result = await fn();
      return successContent(result);
    } catch (error) {
      return errorContent(error);
    }
  }