Agent Guardrail MCP Server

Agent Guardrail provides action-level governance for AI agents, allowing developers to control what agents do rather than just filtering their output. It features a policy engine with allowlists, denylists, and glob patterns for tools and targets. Key capabilities include spend caps in USD, a kill switch to instantly deny all actions, a flight recorder for logging and replaying actions, approval gates for human review, and automatic risk scoring. It supports frameworks like LangChain and uses SQLite for storage with zero external dependencies.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by eren-solutions

You need:pip install agent-guardrail

Vendor documentation

What you can do with it

Apply restrictive, moderate, or permissive policy templates to an agent
Evaluate if a specific tool action (e.g., bash command) is allowed or denied
Set daily and total USD spend caps per agent
Log all agent actions to a flight recorder for replay and auditing

Source and maintenance

Community listingRegistry 0.1.2

mcp-registry: io.github.JarvisOnM4/agent-guardrail@0.1.2 Source repository Project website

Maintenance checked: Nov 1, 2026, 4:29 AM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

agent-guardrail 0.1.2

pypi

agent-guardrail package definition

{
  "version": "0.1.2",
  "transport": "stdio",
  "identifier": "agent-guardrail",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "agent-guardrail-mcp-server": {
      "command": "uvx",
      "args": [
        "agent-guardrail==0.1.2"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "agent-guardrail-mcp-server": {
      "command": "uvx",
      "args": [
        "agent-guardrail==0.1.2"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "agent-guardrail-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "agent-guardrail==0.1.2"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "agent-guardrail-mcp-server": {
      "command": "uvx",
      "args": [
        "agent-guardrail==0.1.2"
      ]
    }
  }
}

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