{"task": {"agent_timeout": 3600, "task": "task_jellyfangs_messenger_bot_tutorial__root", "verifier_timeout": 1800, "instruction": "You are a backend development expert. Please inspect the backend project located in the current directory, determine its programming language and architectural style, and then complete the following code implementation and environment setup tasks.\n\nYou are building the simplest health-check endpoint for this Messenger bot tutorial. Implement the GET `/` handler so that it confirms the bot service is alive.\n\nRequirements\n- The route must respond with HTTP 200 and a plain-text body.\n- The body must be the literal string `hello world i am a secret bot` so external uptime checks can rely on an exact match.\n- No additional markup or JSON should be returned.\n- Keep the handler synchronous and lightweight so that it can be called frequently without side effects.\n\nDeliverable\nReplace the TODO in `index.js` with an Express handler that satisfies the requirements above.\nPlease locate the appropriate place in the project and apply the necessary modifications.\n\nAfter completing all source code implementation, create a Dockerfile for this project using the following example template as a reference (Python version):\n```\n# setup base\nFROM nikolaik/python-nodejs:python3.12-nodejs22-bullseye\nRUN apt-get update && apt-get install -y sqlite3\n\n# install dependencies and copy project files\nWORKDIR /app\nCOPY . /app/\nRUN python3 -m pip install -r requirements.txt\n\nENTRYPOINT [\"python3\", \"app.py\"]\n```\nNotes:\n1. Ensure that all required project dependencies are properly installed inside the image.\n2. The generated Dockerfile must successfully build and run the application.\n3. The Dockerfile must be created in the root directory of the backend project, i.e `/app/jellyfangs_messenger-bot-tutorial/Dockerfile`\n", "memory": "", "runnable": false, "difficulty": "hard", "language": "", "cpus": "", "instruction_truncated": false, "category": "Content", "compose": true, "has_solution": true, "oracle": null, "docker_image": "", "taskset": "abc-bench", "tags": []}, "runs": []}