I
io.github.rudimentall1/agent-guardrail
guardrail-mcp
Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.
No known CVEs
MIT license
Actively maintained
Last commit 1d ago
Works with most clients
Transport: stdio, sse, http
0 tools
Grade F
MCPpedia last refreshed this data
io.github.rudimentall1/agent-guardrail is an MCP server that deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 59/100 on MCPpedia's security, maintenance and efficiency rubric.
Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io-github-rudimentall1-agent-guardrail": {
"args": [
"guardrail-mcp"
],
"command": "uvx"
}
}
}Are you the author?
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What io.github.rudimentall1/agent-guardrail does
Your agent wants to run a shell command, send an email, or move money. Guardrail checks that request against rules you wrote, before it happens, and either lets it through, asks a human, or blocks it — with a plain-
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
uvx 'guardrail-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
59/100across 5 weighted dimensions
0255075100
23
12
14
10
−41
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked guardrail-mcp against OSV.dev.
Community
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Frequently Asked Questions
- Is io.github.rudimentall1/agent-guardrail safe to use?
- io.github.rudimentall1/agent-guardrail has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
- How do I install io.github.rudimentall1/agent-guardrail?
- io.github.rudimentall1/agent-guardrail supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What AI clients work with io.github.rudimentall1/agent-guardrail?
- io.github.rudimentall1/agent-guardrail is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is io.github.rudimentall1/agent-guardrail actively maintained?
- io.github.rudimentall1/agent-guardrail is actively maintained — last commit was 1 day ago. It has 1 GitHub stars.
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Community
Discussion
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