warrant

warrant is an MCP server for Claude Code from s0fractal/warrant. Its token cost is not measured, scanned A, original, MIT.

An MCP server named warrant, configured to start through a shell script. MCP is a standard way for an agent to connect to external tools or services.

In plain words
What is it for?
It is for connecting an agent to the warrant service through the configured command and environment settings.
Why use it?
The supplied information only shows how it is started, so it does not establish what the server does.

MCP server for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the warrant-review plugin — 1 skill, 1 MCP server shipped together

Good fit It is for connecting an agent to the warrant service through the configured command and environment settings.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/s0fractal/warrant/warrant-review-warrant

Installing this writes the configuration, not the program: `/bin/sh` has to be on your PATH already, or the server will not start.

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/s0fractal/warrant

Installing this writes the configuration, not the program: `/bin/sh` has to be on your PATH already, or the server will not start.

Made for: Claude Code.

Or install warrant-review, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

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 warrant

README.md
[![agentmods](https://agentmods.dev/badge/mcp/s0fractal/warrant/warrant-review-warrant/github.svg)](https://agentmods.dev/mcp/s0fractal/warrant/warrant-review-warrant)
Your own site
<a href="https://agentmods.dev/mcp/s0fractal/warrant/warrant-review-warrant"><img src="https://agentmods.dev/badge/mcp/s0fractal/warrant/warrant-review-warrant/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 warrant

Your own site · 80×15
<a href="https://agentmods.dev/mcp/s0fractal/warrant/warrant-review-warrant"><img src="https://agentmods.dev/badge/mcp/s0fractal/warrant/warrant-review-warrant.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. Third-party audits How audits are shown
Origin original No closer match found in the catalogue.
Security

Grade A, and why

warrant 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 9d ago.

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.

integrations/warrant-review/.mcp.json · 16 lines

What it actually says

{
  "warrant": {
    "command": "/bin/sh",
    "args": [
      "./scripts/warrant-mcp"
    ],
    "cwd": ".",
    "env_vars": [
      "HOME",
      "PATH",
      "WARRANT_AGENT_MCP",
      "WARRANT_AGENT_CONFIG"
    ],
    "tool_timeout_sec": 120
  }
}
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. 9d ago First seen · 16 lines scan A 07aeafc44c94

Subscribe to this mod's changes

warrant is an MCP server published in the GitHub repository s0fractal/warrant (5 stars, last pushed 3d 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-01.

Related

warrant compared with mcp servers from other repositories

warrant next to 6 mcp servers from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
warrants0fractal/warrantMCP server53d agoMITA—Claude Code
ememVortx-AI/ememMCP server89yesterdayApache-2.0A—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
ai-audit-trailsundsoffice-tech/ai-audit-trailMCP server414d agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
universal_researchmp-juns/universal-research-mcpMCP server01mo agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
universal-research-mcpmp-juns/universal-research-mcpMCP server01mo agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
notarizesandeep-alluru/notarizeMCP server02mo agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
krait-soloditZealynxSecurity/kraitMCP server27todayMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode