Persona MCP

Instructions

Implementation Reference

• src/index.ts:459-470 (handler)

  The main handler for the 'create_persona' tool. Validates the input arguments using createPersonaSchema and calls the savePersona helper function to persist the persona file. Returns a success message with the file location.

  case 'create_persona': {
    const validated = createPersonaSchema.parse(args);
    await savePersona(validated.name, validated.content);
    return {
      content: [
        {
          type: 'text',
          text: `페르소나 "${validated.name}"이(가) 생성되었습니다.\n위치: ${path.join(PERSONA_DIR, validated.name + '.txt')}`,
        },
      ],
    };
  }

• src/validation.ts:20-23 (schema)

  Zod schema that validates the input for create_persona tool, requiring 'name' (validated by personaNameSchema) and 'content' (validated by personaContentSchema).

  export const createPersonaSchema = z.object({
    name: personaNameSchema,
    content: personaContentSchema,
  });

• src/index.ts:323-340 (registration)

  Tool registration in the ListTools response, defining the name, description, and input schema for 'create_persona'.

  {
    name: 'create_persona',
    description: '새로운 페르소나 프로필을 생성합니다',
    inputSchema: {
      type: 'object',
      properties: {
        name: {
          type: 'string',
          description: '페르소나 이름 (예: default, professional, casual)',
        },
        content: {
          type: 'string',
          description: '페르소나 프롬프트 내용',
        },
      },
      required: ['name', 'content'],
    },
  },

• src/index.ts:127-134 (helper)

  Core helper function that implements the persona creation logic: validates name and content, constructs the file path in the persona directory, and writes the content to a .txt file.

    // 파일명 및 컨텐츠 검증
    const validatedName = validatePersonaName(name);
    const validatedContent = validatePersonaContent(content);
  
    const filePath = path.join(PERSONA_DIR, `${validatedName}.txt`);
    await fs.writeFile(filePath, validatedContent, 'utf-8');
  }