Blogs

Developer insights and practical how-to articles from our experts to inspire and empower your search experience

Building effective database retrieval tools for context engineering

Best practices for writing database retrieval tools for context engineering. Learn how to design and evaluate agent tools for interacting with Elasticsearch data.

Building effective database retrieval tools for context engineering
Build task-aware agents with an expanded model catalog on Elastic Inference Service (EIS)

Build task-aware agents with an expanded model catalog on Elastic Inference Service (EIS)

Elastic Inference Service (EIS) expands its managed model catalog, enabling teams to build production-ready agents with flexible model choice across retrieval, generation, and reasoning, without managing GPUs or infrastructure.

Does MCP make search obsolete? Not even close

Does MCP make search obsolete? Not even close

Explore why search engines and indexed search remain the foundation for scalable, accurate, enterprise-grade AI, even in the age of MCP, federated search, and large context windows.

Entity resolution with Elasticsearch, part 3: Optimizing LLM integration with function calling

March 4, 2026

Entity resolution with Elasticsearch, part 3: Optimizing LLM integration with function calling

Learn how function calling enhances LLM integration, enabling a reliable and cost-efficient entity resolution pipeline in Elasticsearch.

Using subagents and Elastic Agent Builder to bring business context into code planning

March 3, 2026

Using subagents and Elastic Agent Builder to bring business context into code planning

Learn about subagents, how to ensure they have the right information, and how to create a specialized subagent that connects Claude Code to your Elasticsearch data.

Adaptive early termination for HNSW in Elasticsearch

Adaptive early termination for HNSW in Elasticsearch

Introducing a new adaptive early termination strategy for HNSW in Elasticsearch.

Common Expression Language (CEL): How the CEL input improves data collection in Elastic Agent integrations

February 27, 2026

Common Expression Language (CEL): How the CEL input improves data collection in Elastic Agent integrations

Learn how the Common Expression Language differs from other programming languages, how we’ve extended it for Filebeat’s CEL input, and the flexibility it gives you to express data collection logic in Elastic Agent integrations.

Entity resolution with Elasticsearch & LLMs, Part 2: Matching entities with LLM judgment and semantic search

February 26, 2026

Entity resolution with Elasticsearch & LLMs, Part 2: Matching entities with LLM judgment and semantic search

Using semantic search and transparent LLM judgment for entity resolution in Elasticsearch.

Elasticsearch vector search is up to 8x faster than OpenSearch

February 25, 2026

Elasticsearch vector search is up to 8x faster than OpenSearch

Exploring filtered vector search benchmarks of OpenSearch vs. Elasticsearch and why vector search performance is critical for context-engineered systems.

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