ABLESTACK MOLD MCP Server

Instructions

Implementation Reference

• src/app/tools.js:73-77 (handler)

  The handler function for the 'mold_call' tool. It flattens the input parameters and calls the generic callApi function to execute the MOLD API request, returning the JSON response as text.

  async ({ command, params }) => {
    const flat = flattenParamsForMold(params ?? {});
    const data = await callApi(command, flat);
    return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] };
  }

• src/app/tools.js:50-71 (schema)

  Zod input schema for the 'mold_call' tool, defining 'command' as string and optional 'params' as record of string keys to union of primitives or nested records.

  inputSchema: {
    command: z.string(),
    params: z
      .record(
        z.string(),
        z.union([
          z.string(),
          z.number(),
          z.boolean(),
          z.record(
            z.string(),
            z.union([
              z.string(),
              z.number(),
              z.boolean(),
              z.record(z.string(), z.union([z.string(), z.number(), z.boolean()])),
            ])
          ),
        ])
      )
      .optional(),
  },

• src/app/tools.js:45-78 (registration)

  Full registration of the 'mold_call' tool in registerCoreTools, specifying name, metadata, input schema, and handler function.

  server.registerTool(
    "mold_call",
    {
      title: "MOLD API 호출(범용)",
      description: "임의의 MOLD API 명령을 호출합니다. (command + params)",
      inputSchema: {
        command: z.string(),
        params: z
          .record(
            z.string(),
            z.union([
              z.string(),
              z.number(),
              z.boolean(),
              z.record(
                z.string(),
                z.union([
                  z.string(),
                  z.number(),
                  z.boolean(),
                  z.record(z.string(), z.union([z.string(), z.number(), z.boolean()])),
                ])
              ),
            ])
          )
          .optional(),
      },
    },
    async ({ command, params }) => {
      const flat = flattenParamsForMold(params ?? {});
      const data = await callApi(command, flat);
      return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] };
    }
  );

• src/api/mold.js:39-47 (helper)

  Core helper function called by the handler to perform the actual signed API request to MOLD using fetch.

  export async function callApi(command, params = {}) {
    const url = buildSignedUrl({ command, ...params });
    const res = await fetch(url);
    if (!res.ok) {
      const text = await res.text();
      throw new Error(`HTTP ${res.status}: ${text} from: ${url} and params: ${JSON.stringify(params, null, 2)}`);
    }
    return res.json();
  }

• src/util/params.js:7-76 (helper)

  Helper function to flatten nested parameters into flat object with bracket and dot notation suitable for MOLD API.

  export function flattenParamsForMold(params = {}) {
    const out = {};
  
    const put = (k, v) => {
      if (v === undefined || v === null) return;
      out[k] = String(v);
    };
  
    const walkNested = (val, base) => {
      if (val === undefined || val === null) return;
      if (Array.isArray(val)) {
        if (val.length && typeof val[0] === "object") {
          val.forEach((item, i) => walkNested(item, `${base}[${i}]`));
        } else {
          put(base, val.map((x) => String(x)).join(","));
        }
        return;
      }
      if (typeof val === "object") {
        for (const [sk, sv] of Object.entries(val)) {
          if (sv === undefined || sv === null) continue;
          if (typeof sv === "object" && !Array.isArray(sv)) {
            walkNested(sv, `${base}.${sk}`);
          } else {
            put(`${base}.${sk}`, sv);
          }
        }
        return;
      }
      put(base, val);
    };
  
    for (const [key, val] of Object.entries(params)) {
      if (val === undefined || val === null) continue;
      if (/[.\[]/.test(key)) {
        put(key, val);
        continue;
      }
      if (Array.isArray(val)) {
        if (val.length && typeof val[0] === "object") {
          val.forEach((item, i) => {
            for (const [sk, sv] of Object.entries(item || {})) {
              if (sv === undefined || sv === null) continue;
              if (typeof sv === "object" && !Array.isArray(sv)) {
                walkNested(sv, `${key}[${i}].${sk}`);
              } else {
                put(`${key}[${i}].${sk}`, sv);
              }
            }
          });
        } else {
          put(key, val.map((x) => String(x)).join(","));
        }
        continue;
      }
      if (typeof val === "object") {
        for (const [sk, sv] of Object.entries(val)) {
          if (sv === undefined || sv === null) continue;
          if (typeof sv === "object" && !Array.isArray(sv)) {
            walkNested(sv, `${key}[0].${sk}`);
          } else {
            put(`${key}[0].${sk}`, sv);
          }
        }
        continue;
      }
      put(key, val);
    }
    return out;
  }