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Security · MCP server

Skylos: MCP server, setup and security

Skylos is an open-source MCP server published on GitHub that lets an AI agent detect dead code and remediate security and code quality issues. Its repository has 849 stars and its last commit is from October 24, 2026 and it is licensed under Apache-2.0.

Score
79/100
Adoption (stars) 29/40
Maintenance 30/30
Framework (licence, registry, official) 20/30
Actively maintainedNeeds secretsTop 10% by stars

What Skylos does

According to its repository: “Dead code detection, security scanning and code quality analysis for Python, TypeScript and Go, with AI-assisted remediation.”

The Model Context Protocol (MCP) is a standard plug between an AI agent and an outside service: once the server is connected, its tools show up in the agent, which decides when to call them. Skylos is listed under Security, a category of 133 servers in the directory, where it ranks #9 by stars.

Topics declared by the repository: python, code-quality, dead-code, dead-code-detection, devsecops, sast.

Installing and connecting Skylos

Distribution modes declared in the official MCP registry:

  • PyPI package (Python, started with uvx or pip)

It works with any MCP-compatible client (Claude Desktop, Claude Code, Cursor, VS Code, Codex and most recent agents). You add one entry to the client's MCP configuration: server name, start command or URL, environment variables. Project language: Python. Listed systems: macOS, Windows, Linux.

The registry lists one secret variable to provide (API key, access token). Keep them in the client's environment variables, never in a shared file or a repository.

Security: what to check

Connecting an MCP server means installing software that talks straight to your agent: it runs with your rights and the model trusts its tool descriptions. The risk therefore depends on what it can touch and how far its code can be trusted.

Points found for Skylos:

  • Secrets: the server acts with your credentials. Create a dedicated key with minimum rights and an expiry date.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on April 28, 2025, the duriantaco/skylos repository has 849 stars and 59 forks, with 0 open issues. It has more stars than 91% of the servers in the directory. It received changes this month. Version published in the registry: 3.5.10 (March 11, 2026).

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.

World MonitorWorld Monitor : 89.4K89.4KSemgrepSemgrep : 17.2K17.2KIda pro MCPIda pro MCP : 13.1K13.1KGhidraMCP (LaurieWired)GhidraMCP (LaurieWired) : 11.5K11.5KRobin: AI Powered Dark Web ORobin: AI Powered Dark Web O : 7.7K7.7KJadx ai MCPJadx ai MCP : 2.9K2.9KPower BI Authoring MCP ServePower BI Authoring MCP Serve : 1.2K1.2KSafeDep Vet MCPSafeDep Vet MCP : 1.1K1.1KSkylosSkylos : 849849
GitHub stars of the most followed servers in the category (log scale); Skylos in orange. Checked October 25, 2026.

Verdict

Skylos is one of the most solid servers in its category: followed, maintained and well framed.

Strengths

  • Active project: recent commit
  • Widely followed: 849 stars
  • Listed in the official MCP registry
  • Permissive licence (Apache-2.0)

Limitations

  • Requires an API key or token

Avoid if…

  • You do not want to give credentials to an agent

Frequently asked questions

How do I install Skylos?

Skylos is distributed as PyPI package (Python, started with uvx or pip). Add it to your client's MCP configuration (Claude Desktop, Cursor, VS Code…) following the README of duriantaco/skylos.

Is Skylos free?

The code is published under the Apache-2.0 licence and can be used free of charge. It needs an API key: the service it connects to may be paid.

Is Skylos safe?

Points to watch: secrets. Give it minimum rights and approve sensitive actions.

Is it an official server?

Nothing says so: it is a project published by duriantaco on GitHub. Check who maintains it before giving it access.

What are the alternatives to Skylos?

In the same category: Semgrep, World Monitor, SafeDep Vet MCP, and Ida pro MCP. Semgrep and World Monitor score higher on our grid.

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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score