Prem MCP Server

Instructions

Implementation Reference

• src/index.ts:134-182 (handler)

  The main handler function for the prem_upload_document tool. It reads the file, creates a FormData multipart request, and uploads it to the specified Prem AI repository using the Prem SDK's repository.document.create method. Handles errors and logs progress.

  async ({ repository_id, file_path }) => {
    const requestId = uuidv4();
    log(`[${requestId}] Starting document upload to repository ${repository_id}`);
    
    try {
      if (!fs.existsSync(file_path)) {
        throw new Error(`File not found: ${file_path}`);
      }
  
      const formData = new FormData();
      const fileStream = fs.createReadStream(file_path);
      const fileName = path.basename(file_path);
      
      formData.append('file', fileStream, {
        filename: fileName,
        contentType: 'text/plain',
        knownLength: fs.statSync(file_path).size
      });
  
      const response = await this.client.repository.document.create(
        repository_id,
        {
          data: formData,
          headers: {
            ...formData.getHeaders(),
            'Content-Type': 'multipart/form-data'
          }
        }
      );
  
      log(`[${requestId}] Document upload successful: ${JSON.stringify(response)}`);
      return {
        content: [{
          type: "text" as const,
          text: JSON.stringify(response, null, 2)
        }]
      };
    } catch (error) {
      const errorMessage = error instanceof Error ? error.message : String(error);
      log(`[${requestId}] Document upload error: ${errorMessage}`);
      return {
        content: [{
          type: "text" as const,
          text: `Document upload error: ${errorMessage}`
        }],
        isError: true
      };
    }
  }

• src/index.ts:130-133 (schema)

  Zod input schema defining the required parameters: repository_id (string) and file_path (string).

  {
    repository_id: z.string().describe("ID of the repository to upload to"),
    file_path: z.string().describe("Path to the file to upload")
  },

• src/index.ts:127-183 (registration)

  The tool registration call using McpServer.tool() method, specifying the tool name, description, input schema, and handler function.

  this.server.tool(
    "prem_upload_document",
    "Upload a document to a Prem AI repository",
    {
      repository_id: z.string().describe("ID of the repository to upload to"),
      file_path: z.string().describe("Path to the file to upload")
    },
    async ({ repository_id, file_path }) => {
      const requestId = uuidv4();
      log(`[${requestId}] Starting document upload to repository ${repository_id}`);
      
      try {
        if (!fs.existsSync(file_path)) {
          throw new Error(`File not found: ${file_path}`);
        }
  
        const formData = new FormData();
        const fileStream = fs.createReadStream(file_path);
        const fileName = path.basename(file_path);
        
        formData.append('file', fileStream, {
          filename: fileName,
          contentType: 'text/plain',
          knownLength: fs.statSync(file_path).size
        });
  
        const response = await this.client.repository.document.create(
          repository_id,
          {
            data: formData,
            headers: {
              ...formData.getHeaders(),
              'Content-Type': 'multipart/form-data'
            }
          }
        );
  
        log(`[${requestId}] Document upload successful: ${JSON.stringify(response)}`);
        return {
          content: [{
            type: "text" as const,
            text: JSON.stringify(response, null, 2)
          }]
        };
      } catch (error) {
        const errorMessage = error instanceof Error ? error.message : String(error);
        log(`[${requestId}] Document upload error: ${errorMessage}`);
        return {
          content: [{
            type: "text" as const,
            text: `Document upload error: ${errorMessage}`
          }],
          isError: true
        };
      }
    }
  );