serena

A code-understanding server that maps how a codebase is structured and how its parts relate. It can use language-server tools, the same kind of tooling editors use to understand code.

In plain words
What is it for?
Use it to explore a codebase, find related definitions and references, and identify possible ways to reorganize code.
Why use it?
It helps an agent navigate unfamiliar code and suggest refactoring changes based on meaning and relationships, not just text matches.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add thevibeworks/claude-code-docs
agentmods
npx agentmods add plugins/thevibeworks/claude-code-docs/serena
Clone the repo
git clone --depth 1 https://github.com/thevibeworks/claude-code-docs

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

serena scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to serena — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

content/github/claude-plugins-official/external_plugins/serena/.claude-plugin/plugin.json · 8 lines

What it actually says

{
  "name": "serena",
  "description": "Semantic code analysis MCP server providing intelligent code understanding, refactoring suggestions, and codebase navigation through language server protocol integration.",
  "author": {
    "name": "Oraios"
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 8 lines scan A a046a275ba70

Subscribe to this mod's changes

serena is a plugin published in the GitHub repository thevibeworks/claude-code-docs (38 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 100% identical to serena, differing in 0 lines, and is treated as a copy.