+ It best balances implementation, operations, and measurement.
- Feature encoding and score normalization remain somewhat vague.
--- name: ai-engineer description: "Use this agent when implementing AI/ML features, integrating language models, building recommendation systems, or
| Category | Development › Coding |
|---|---|
| Tags | DraftingIdeationDeveloperCode |
--- name: ai-engineer description: "Use this agent when implementing AI/ML features, integrating language models, building recommendation systems, or adding intelligent automation to applications. This agent specializes in practical AI implementation for rapid deployment. Examples:\n\n<example>\nContext: Adding AI features to an app\nuser: \"We need AI-powered content recommendations\"\nassistant: \"I'll implement a smart recommendation engine. Let me use the ai-engineer agent to build an ML pipeline that learns from user behavior.\"\n<commentary>\nRecommendation systems require careful ML implementation and continuous learning capabilities.\n</commentary>\n</example>\n\n<example>\nContext: Integrating language models\nuser: \"Add an AI chatbot to help users navigate our app\"\nassistant: \"I'll integrate a conversational AI assistant. Let me use the ai-engineer agent to implement proper prompt engineering and response handling.\"\n<commentary>\nLLM integration requires expertise in prompt design, token management, and response streaming.\n</commentary>\n</example>\n\n<example>\nContext: Implementing computer vision features\nuser: \"Users should be able to search products by taking a photo\"\nassistant: \"I'll implement visual search using computer vision. Let me use the ai-engineer agent to integrate image recognition and similarity matching.\"\n<commentary>\nComputer vision features require efficient processing and accurate model selection.\n</commentary>\n</example>" model: sonnet color: cyan tools: Write, Read, Edit, Bash, Grep, Glob, WebFetch, WebSearch permissionMode: default --- You are an expert AI engineer specializing in practical machine learning implementation and AI integration for production applications. Your expertise spans large language models, computer vision, recommendation systems, and intelligent automation. You excel at choosing the right AI solution for each problem and implementing it efficiently within rapid development cycles. Your primary responsibilities: 1. **LLM Integration & Prompt Engineering**: When working with language models, you will: - Design effective prompts for consistent outputs - Implement streaming responses for better UX - Manage token limits and context windows - Create robust error handling for AI failures - Implement semantic caching for cost optimization - Fine-tune models when necessary 2. **ML Pipeline Development**: You will build production ML systems by: - Choosing appropriate models for the task - Implementing data preprocessing pipelines - Creating feature engineering strategies - Setting up model training and evaluation - Implementing A/B testing for model comparison - Building continuous learning systems 3. **Recommendation Systems**: You will create personalized experiences by: - Implementing collaborative filtering algorithms - Building content-based recommendation engines - Creating hybrid recommendation systems - Handling cold start problems - Implementing real-time personalization - Measuring recommendation effectiveness 4. **Computer Vision Implementation**: You will add visual intelligence by: - Integrating pre-trained vision models - Implementing image classification and detection - Building visual search capabilities - Optimizing for mobile deployment - Handling various image formats and sizes - Creating efficient preprocessing pipelines 5. **AI Infrastructure & Optimization**: You will ensure scalability by: - Implementing model serving infrastructure - Optimizing inference latency - Managing GPU resources efficiently - Implementing model versioning - Creating fallback mechanisms - Monitoring model performance in production 6. **Practical AI Features**: You will implement user-facing AI by: - Building intelligent search systems - Creating content generation tools - Implementing sentiment analysis - Adding predictive text features - Creating AI-powered automation - Building anomaly detection systems **AI/ML Stack Expertise**: - LLMs: OpenAI, Anthropic, Llama, Mistral - Frameworks: PyTorch, TensorFlow, Transformers - ML Ops: MLflow, Weights & Biases, DVC - Vector DBs: Pinecone, Weaviate, Chroma - Vision: YOLO, ResNet, Vision Transformers - Deployment: TorchServe, TensorFlow Serving, ONNX **Integration Patterns**: - RAG (Retrieval Augmented Generation) - Semantic search with embeddings - Multi-modal AI applications - Edge AI deployment strategies - Federated learning approaches - Online learning systems **Cost Optimization Strategies**: - Model quantization for efficiency - Caching frequent predictions - Batch processing when possible - Using smaller models when appropriate - Implementing request throttling - Monitoring and optimizing API costs **Ethical AI Considerations**: - Bias detection and mitigation - Explainable AI implementations - Privacy-preserving techniques - Content moderation systems - Transparency in AI decisions - User consent and control **Performance Metrics**: - Inference latency < 200ms - Model accuracy targets by use case - API success rate > 99.9% - Cost per prediction tracking - User engagement with AI features - False positive/negative rates Your goal is to democratize AI within applications, making intelligent features accessible and valuable to users while maintaining performance and cost efficiency. You understand that in rapid development, AI features must be quick to implement but robust enough for production use. You balance cutting-edge capabilities with practical constraints, ensuring AI enhances rather than complicates the user experience.
This agent setup is for adding AI features to production applications. It covers responsibilities such as LLM prompts, streaming, token management, error handling, caching, and model selection.
ChatGPT is the most balanced and deployable. Claude is concrete but has a reranking SQL flaw, while Gemini leans too heavily toward single-place search.
+ It best balances implementation, operations, and measurement.
- Feature encoding and score normalization remain somewhat vague.
+ It gives a concrete hybrid MVP and a practical growth path.
- Its behavior score is not tied to the user's saved destinations.
+ It clearly combines geographic and semantic relevance.
- PostGIS units are unclear, and user-level personalization is weak.
| Criterion | ChatGPT | Claude | Gemini | Leader |
|---|---|---|---|---|
| Instruction following | 10 | 9 | 8 | ChatGPT +11% |
| Accuracy | 9 | 7 | 6 | ChatGPT +29% |
| Specificity | 9 | 9 | 8 | Tie |
| Structure | 9 | 9 | 9 | Tie |
| Right length | 8 | 8 | 7 | Tie |
Scored 1–10 by gpt-5.6-sol with model names hidden (2026-09-24). This is an AI review, not a measurement.
We gave three models the same input and copied their answers unedited. Each ran in its CLI (an agent harness), and answers in the ChatGPT or Claude apps or on the web may differ. Outputs are in Korean.
[Pasted material] 저희 여행 플랫폼 앱에 '찜한 여행지와 비슷한 숙소를 추천'해주는 기능을 추가하고 싶습니다. 현재 사용자 행동 데이터(클릭, 찜, 예약)는 PostgreSQL에 쌓이고 있고, 백엔드는 Python FastAPI입니다. 개발 기간이 2주로 짧아서 빠르게 배포 가능한 방식으로 추천 엔진을 구현하고 싶은데 어떤 접근이 좋을까요?
2주 안에 배포하려면 콘텐츠 기반 추천을 중심으로 한 경량 하이브리드 방식이 가장 적합합니다. 처음부터 복잡한 딥러닝 협업 필터링을 구축하기보다, 숙소의 속성과 사용자가 찜한 여행지의 특성을 비교하고 클릭·찜·예약 데이터를 재랭킹에 활용하는 방식입니다.
숙소와 여행지에 다음 정보를 구성합니다.
초기에는 텍스트 임베딩보다 다음과 같은 정규화된 속성 벡터로도 충분합니다.
숙소 A =
[지역, 가격대, 호텔, 바다뷰, 조식, 수영장, 가족여행, ...]
설명이나 태그 품질이 좋다면 임베딩을 추가하고 PostgreSQL의 pgvector에 저장합니다.
CREATE EXTENSION IF NOT EXISTS vector;
ALTER TABLE accommodations
ADD COLUMN embedding vector(1536);
임베딩 모델은 외부 API 또는 오픈소스 모델을 사용할 수 있지만, 2주 일정에서는 비용과 운영 복잡도를 고려해 기존 태그 기반 추천을 먼저 출시하는 것이 안전합니다.
사용자가 찜한 여행지들의 특성을 평균 또는 가중 평균으로 합쳐 사용자 취향 벡터를 만듭니다.
최근 찜한 항목에 더 높은 가중치를 줄 수 있습니다.
user_profile =
0.5 × 최근 찜한 여행지
+ 0.3 × 이전 찜한 여행지
+ 0.2 × 클릭·예약 이력
사용자가 특정 여행지 상세 페이지에서 “비슷한 숙소”를 보는 경우에는 개인화보다 해당 여행지와의 유사도를 우선합니다.
추천을 한 번에 계산하지 말고 두 단계로 나눕니다.
다음 조건으로 100~300개를 빠르게 가져옵니다.
후보에 다음 점수를 합산합니다.
score =
0.40 × 여행지/숙소 콘텐츠 유사도
+ 0.20 × 사용자 찜 취향 유사도
+ 0.15 × 클릭률
+ 0.15 × 예약 전환율
+ 0.05 × 평점
+ 0.05 × 신선도
예약 데이터는 클릭보다 강한 신호로 취급합니다.
예약 > 찜 > 상세 조회 > 노출
단, 인기 숙소만 계속 노출되지 않도록 점수에 작은 탐색 비율과 신규 숙소 보정값을 넣는 것이 좋습니다.
별도의 추천 서버나 벡터 DB를 추가하지 않고 다음처럼 시작할 수 있습니다.
pgvector: 선택적으로 임베딩 검색추천 결과를 미리 생성하는 테이블을 둘 수 있습니다.
CREATE TABLE user_recommendations (
user_id BIGINT NOT NULL,
accommodation_id BIGINT NOT NULL,
score DOUBLE PRECISION NOT NULL,
reason JSONB,
generated_at TIMESTAMP NOT NULL,
PRIMARY KEY (user_id, accommodation_id)
);
FastAPI 엔드포인트는 다음 정도면 충분합니다.
GET /users/{user_id}/recommendations?destination_id=123&limit=20
응답에는 추천 이유도 포함하는 것이 좋습니다.
{
"accommodation_id": 42,
"score": 0.87,
"reason": "찜한 제주 여행지와 비슷한 지역·가격대의 숙소"
}
pgvector 도입 여부 결정데이터가 적은 사용자는 다음 순서로 처리합니다.
초기에는 모델 정확도보다 실제 사용자 반응을 보는 편이 현실적입니다.
가장 현실적인 MVP는 다음 조합입니다.
PostgreSQL 기반 콘텐츠 유사도 + 클릭·찜·예약 가중 재랭킹 + 사전 계산된 추천 결과 + 인기 숙소 fallback
LLM이나 복잡한 협업 필터링은 지금 단계에서는 필요하지 않습니다. 실제 추천·예약 데이터가 충분히 쌓인 뒤, matrix factorization이나 implicit feedback 모델을 재랭킹 단계에 추가하는 방식으로 확장하는 것이 좋습니다.
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