dos-kernel

dos-kernel is a plugin for Gemini CLI from anthony-chaudhary/dos-kernel. Its token cost is not measured, scanned A, original, MIT.

A tool server for coordinating software agents and checking what actually changed in a Git repository. It can verify Git history, manage collisions when agents would edit the same files, and return structured refusals.

In plain words
What is it for?
It helps verify repository ancestry, arbitrate file-tree conflicts, and expose these checks as tools through the Model Context Protocol, a standard way for programs to offer tools to agents.
Why use it?
It reduces reliance on an agent's own claim that work was shipped and helps prevent competing agents from changing the same files at once. Refusal reasons use a fixed set of categories.

Plugin for Gemini CLI

Written for Gemini CLI: a Gemini CLI extension manifest. Also seen: mentions Gemini CLI.

Good fit It helps verify repository ancestry, arbitrate file-tree conflicts, and expose these checks as tools through the Model Context Protocol, a standard way for programs to offer tools to agents.

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Install with agentmods
npx agentmods add plugins/anthony-chaudhary/dos-kernel/gemini-extension
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.

Clone the repo
git clone --depth 1 https://github.com/anthony-chaudhary/dos-kernel

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dos-kernel

README.md
[![agentmods](https://agentmods.dev/badge/plugins/anthony-chaudhary/dos-kernel/gemini-extension/github.svg)](https://agentmods.dev/plugins/anthony-chaudhary/dos-kernel/gemini-extension)
Your own site
<a href="https://agentmods.dev/plugins/anthony-chaudhary/dos-kernel/gemini-extension"><img src="https://agentmods.dev/badge/plugins/anthony-chaudhary/dos-kernel/gemini-extension/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dos-kernel

Your own site · 80×15
<a href="https://agentmods.dev/plugins/anthony-chaudhary/dos-kernel/gemini-extension"><img src="https://agentmods.dev/badge/plugins/anthony-chaudhary/dos-kernel/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

dos-kernel 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.

gemini-extension.json · 17 lines

What it actually says

{
  "name": "dos-kernel",
  "version": "0.30.0",
  "description": "The kernel that doesn't believe the agents. Exposes the DOS trust syscalls as MCP tools — verify what actually shipped (git ancestry, not self-report), arbitrate file-tree collisions before two agents edit the same files, and refuse with a structured reason from a closed vocabulary. Requires the dos-kernel Python package: pip install 'dos-kernel[mcp]'.",
  "contextFileName": "GEMINI.md",
  "mcpServers": {
    "dos": {
      "command": "python",
      "args": ["-m", "dos_mcp.server"],
      "cwd": "${extensionPath}",
      "env": {
        "PYTHONIOENCODING": "utf-8"
      }
    }
  }
}
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 · 17 lines scan A 9f0a34f8bdf5

Subscribe to this mod's changes

dos-kernel is a plugin published in the GitHub repository anthony-chaudhary/dos-kernel (19 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-07.