Automation Script Generator MCP Server

Instructions

Implementation Reference

• index.js:979-998 (handler)

  The primary handler function for the 'generate_feature_file' tool. It destructures the input arguments, generates the feature file content using an internal helper, ensures the output directory exists, writes the file, and returns a success response with the generated content.

  async generateFeatureFile(args) {
      const { scenario_title, gherkin_syntax, tags = [], output_path } = args;
  
      try {
          const featureContent = this.buildFeatureFileContent(scenario_title, gherkin_syntax, tags);
  
          await fs.ensureDir(path.dirname(output_path));
          await fs.writeFile(output_path, featureContent);
  
          return {
              content: [
                  {
                      type: 'text',
                      text: `Feature file generated successfully at: ${output_path}\n\nContent:\n${featureContent}`,
                  },
              ],
          };
      } catch (error) {
          throw new Error(`Failed to generate feature file: ${error.message}`);
      }

• index.js:175-200 (schema)

  The JSON Schema defining the input parameters and validation rules for the generate_feature_file tool, including required fields and constraints.

  inputSchema: {
      type: 'object',
      properties: {
          scenario_title: {
              type: 'string',
              description: 'Title of the test scenario',
              minLength: 1,
          },
          gherkin_syntax: {
              type: 'string',
              description: 'Gherkin syntax content for the feature',
              minLength: 1,
          },
          tags: {
              type: 'array',
              items: { type: 'string' },
              description: 'Test ID tags for the scenario',
          },
          output_path: {
              type: 'string',
              description: 'Path where the feature file should be saved',
              minLength: 1,
          },
      },
      required: ['scenario_title', 'gherkin_syntax', 'output_path'],
      additionalProperties: false,

• index.js:173-202 (registration)

  The tool configuration object in the toolConfigs array, which registers the generate_feature_file tool with its name, description, and schema for the MCP server's listTools response.

      name: 'generate_feature_file',
      description: 'Generate WDIO feature file with Gherkin syntax (Given, When, Then)',
      inputSchema: {
          type: 'object',
          properties: {
              scenario_title: {
                  type: 'string',
                  description: 'Title of the test scenario',
                  minLength: 1,
              },
              gherkin_syntax: {
                  type: 'string',
                  description: 'Gherkin syntax content for the feature',
                  minLength: 1,
              },
              tags: {
                  type: 'array',
                  items: { type: 'string' },
                  description: 'Test ID tags for the scenario',
              },
              output_path: {
                  type: 'string',
                  description: 'Path where the feature file should be saved',
                  minLength: 1,
              },
          },
          required: ['scenario_title', 'gherkin_syntax', 'output_path'],
          additionalProperties: false,
      },
  },

• index.js:1098-1105 (helper)

  Helper method used by the handler to construct the Gherkin feature file content from scenario title, syntax, and tags.

      buildFeatureFileContent(scenario_title, gherkin_syntax, tags) {
          const tagString = tags.map(tag => `@${tag}`).join(' ');
  
          return `${tagString ? tagString + '\n' : ''}Feature: ${scenario_title}
  
  ${gherkin_syntax}
  `;
      }