serena

A local MCP server for Serena, a Python package that provides coding-agent tools through the Model Context Protocol.

In plain words
What is it for?
Use it when configuring or starting Serena for local coding-agent work, with its optional web dashboard disabled.
Why use it?
It makes Serena available as a locally run service instead of requiring the agent to connect to a remote service.

MCP server for Claude CodeCodexCursor

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.

agentmods
npx agentmods add mcp/johardi/claude-stack/cstack-core-serena
Clone the repo
git clone --depth 1 https://github.com/johardi/claude-stack

Made for: Claude Code, Codex, Cursor.

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 89% 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

89% identical to serena — 7 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.

plugins/cstack-core/.mcp.json · 14 lines

What it actually says

{
  "serena": {
    "type": "stdio",
    "command": "uvx",
    "args": [
      "--from",
      "git+https://github.com/oraios/serena",
      "serena",
      "start-mcp-server",
      "--open-web-dashboard",
      "False"
    ]
  }
}
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 · 14 lines scan A dfe932128399

Subscribe to this mod's changes

serena is an MCP server published in the GitHub repository johardi/claude-stack (2 stars, last pushed 4mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 89% identical to serena, differing in 7 lines, and is treated as a copy.