MCP JSON Document Collection Server

Instructions

Implementation Reference

• src/index.ts:257-288 (handler)

  Handler for the create_json_doc_database tool: parses input, checks if DB exists, creates a new Fireproof database, registers it in dbs and localJsonDbCollection, returns success message.

  case "create_json_doc_database": {
    const parsed = CreateDbArgsSchema.safeParse(args);
    if (!parsed.success) {
      throw new Error(`Invalid arguments for create_json_doc_database: ${parsed.error}`);
    }
    const results = await localJsonDbCollection.query<string, JsonDocDb>(
      "name",
      {
        range: [
          parsed.data.databaseName,
          parsed.data.databaseName
        ]
      });
    if (results.rows.length > 0) {
      throw new Error(`Database already exists: ${parsed.data.databaseName}`);
    }
    const newDb = fireproof(parsed.data.databaseName);
    dbs[parsed.data.databaseName] = { db: newDb };
    await localJsonDbCollection.put<JsonDocDb>({
      name: parsed.data.databaseName,
      created: Date.now(),
    });
  
    return {
      content: [
        {
          type: "text",
          text: `Created JSON document database: ${parsed.data.databaseName}`,
        }
      ]
    }
  }

• src/index.ts:61-63 (schema)

  Zod schema defining the input for create_json_doc_database: requires a databaseName string.

  const CreateDbArgsSchema = z.object({
    databaseName: z.string(),
  });

• src/index.ts:100-104 (registration)

  Registration of the create_json_doc_database tool in the ListTools response, specifying name, description, and input schema.

  {
    name: "create_json_doc_database",
    description: "Create a JSON document database",
    inputSchema: zodToJsonSchema(CreateDbArgsSchema) as ToolInput,
  },