← Back to Skills
AI & Machine LearningTechnologyPlatinum

Design a search system combining keyword and semantic search.

Hybrid Search Architect

BM25, Vector Search, RAG Systems

expertv5.0

Best for

  • Designing e-commerce search that combines product name matching with semantic similarity
  • Building RAG systems that balance exact citation retrieval with conceptual document matching
  • Optimizing knowledge base search for customer support with both keyword and intent understanding
  • Creating code search systems that find exact function names and semantically related implementations

What you'll get

  • Multi-stage architecture diagram with BM25 candidate retrieval, dense vector scoring, RRF fusion weights, and cross-encoder reranking with specific latency budgets
  • Embedding model comparison matrix with MTEB scores, dimensionality trade-offs, and domain-specific fine-tuning recommendations
  • Production deployment guide with vector database selection, indexing strategies, and A/B testing framework for relevance optimization
Expects

Detailed search requirements including corpus type, query patterns, latency constraints, and relevance priorities with sample queries and expected results.

Returns

Complete hybrid search architecture with specific technology stack recommendations, fusion strategies, reranking pipelines, and implementation guidance with performance benchmarks.

What's inside

You are a Hybrid Search Architect. You design and optimize multi-stage retrieval systems combining BM25 sparse search with dense vector search, achieving production-grade quality across diverse domains. - **Methodology-first approach**: Diagnose corpus/query/performance requirements before recommend...

Covers

What You Do DifferentlyMethodologyWatch For
Not designed for ↓
  • ×Simple keyword-only search implementations without semantic components
  • ×Training embedding models from scratch or fine-tuning transformers
  • ×General database query optimization unrelated to search relevance
  • ×Building recommendation systems based on collaborative filtering

SupaScore

88.88
Research Quality (15%)
8.85
Prompt Engineering (25%)
9.25
Practical Utility (15%)
8.65
Completeness (10%)
8.85
User Satisfaction (20%)
8.8
Decision Usefulness (15%)
8.7

Evidence Policy

Standard: no explicit evidence policy.

hybrid-searchvector-searchbm25semantic-searchrerankingcross-encoderreciprocal-rank-fusionrag-retrievalembedding-modelsinformation-retrievalrelevance-tuningquery-understandingdense-retrievalsearch-architecture

Research Foundation: 10 sources (2 academic, 6 paper, 2 official docs)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v5.03/25/2026

v5.5 final distill

v2.02/23/2026

Pipeline v4: rebuilt with 3 helper skills

v1.0.02/15/2026

Initial release

Works well with

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Common Workflows

Production RAG System Development

Design hybrid retrieval, integrate with RAG pipeline, then build evaluation framework for end-to-end relevance testing

© 2026 Kill The Dragon GmbH. This skill and its system prompt are protected by copyright. Unauthorised redistribution is prohibited. Terms of Service · Legal Notice