Serena

Semantic code search and editing toolkit that transforms LLMs into code editing agents

Serena is a powerful coding agent toolkit that transforms LLMs into fully-featured agents operating directly on your codebase. It provides IDE-like semantic code search and editing tools, significantly improving token efficiency. Integrates with multiple LLM clients as an MCP server.

Author: oraios

Stars: 22,818

GitHub

Install: npx serena

Key Features

• Symbol-level code manipulation and search
• Semantic code search with contextually relevant results
• Significant improvement in token efficiency
• IDE-like code editing capabilities
• MCP integration with multiple LLM clients

Use Cases

• Code search and analysis — LLMs quickly locate symbols and references in codebases, streamlining debugging and refactoring tasks.
• Automated code generation and editing — Agents insert new code at precise locations, automating feature additions while maintaining consistency.
• Large codebase management — Improved token efficiency enables LLM agents to effectively handle large-scale projects.