LlamaIndex launches legal-kb for agentic document retrieval with advanced tools
Reported by MarkTechPost: LlamaIndex ‘legal-kb’: Agentic Retrieval over Index v2 with retrieve, find, read, and grep Tools. Analysis and context written by TickrWire.
LlamaIndex has released a public reference app called legal-kb that enables agents to interact with document knowledge bases using filesystem-style tools like retrieve, find, read, and grep.

- legal-kb provides agents with filesystem-style tools (retrieve, find, read, grep) for interacting with document knowledge bases.
- Hybrid semantic search and automatic versioning improve retrieval accuracy and traceability.
- Built on Index v2 and modern stacks like AI SDK 6 and Prisma, ensuring scalability and reliability.
- Serves as a public reference app for developers exploring agentic document retrieval workflows.
LlamaIndex has introduced legal-kb, a public reference application designed to give AI agents filesystem-style access to document knowledge bases. The app leverages LlamaIndex's Index v2 and exposes tools such as retrieve (hybrid semantic search), find, read, and grep, enabling agents to interact with documents more dynamically.
Key features include automatic per-file versioning and visual citations, which enhance traceability and reliability of retrieved information. The technical stack supporting legal-kb includes TanStack Start, AI SDK 6 (ToolLoopAgent), Prisma, and WorkOS, reflecting a modern and robust foundation for agentic workflows.
This release highlights LlamaIndex's focus on improving how AI agents handle document retrieval, moving beyond simple keyword searches to more sophisticated, tool-based interactions. The legal-kb app serves as both a practical tool and a reference implementation for developers building agentic systems.
Provides a practical reference for building agentic systems with advanced document retrieval tools.
Enables more efficient and accurate document processing for AI-driven workflows.
Demonstrates the evolution of AI agents beyond simple queries to interactive document handling.
- agentic retrieval
- AI systems that actively interact with data sources using tools rather than passive queries.
- hybrid semantic search
- Combines keyword-based and vector-based search methods for improved relevance.
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