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serena

oraios/serena · Updated

A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

oraios/serena is a Python repository in the AI Agents category with 30,841 stars and 2,102 forks on GitHub, last updated yesterday.

#agent#ai#ai-coding#claude#claude-code#codex#ide#jetbrains
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How to install serena in your AI client

Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.

How to install serena in Claude CodeAnthropic's agentic CLI

  1. Clone & open

    bash
    git clone https://github.com/oraios/serena.git
cd serena
claude

  2. Let Claude read it

    Ask “/init” to generate a CLAUDE.md, then have Claude explain, run, or extend the codebase. It reads files on demand.

Documentation

Full README

The IDE for Your Coding Agent

  • Serena provides essential semantic code retrieval, editing, refactoring and debugging tools that are akin to an IDE's capabilities,

operating at the symbol level and exploiting relational structure.

  • It integrates with any client/LLM via the model context protocol (MCP).

Serena's agent-first tool design involves robust high-level abstractions, distinguishing it from approaches that rely on low-level concepts like line numbers or primitive search patterns.

Practically, this means that your agent operates faster, more efficiently and more reliably, especially in larger and more complex codebases.

[!TIP] Serena v2 with the new REPL-based agent interface has been released. Learn more about the new interface and how to configure it.

Video

What Our "End Users" Say

While it is humans who download and set up Serena, our end users are essentially AI agents. As the ones actually applying Serena's tools, they are in the best position to evaluate Serena.

We crafted an unbiased evaluation prompt that leads the agent to perform ~20 routine coding tasks, representative of everyday development work, in order to estimate the value added by Serena's tools when used alongside its own built-ins.

Here's a one-sentence summary of what the agents had to say:

Opus 4.6 (high) in Claude Code on a large Python codebase:

"Serena's IDE-backed semantic tools are the single most impactful addition to my toolkit – cross-file renames, moves, and reference lookups that

Excerpt — the full document is on GitHub.

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