Agent Guardrail

Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.

Connector by rudimentall1 · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 1

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/rudimentall1-agent-guardrail

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 2 read · 1 write · 0 delete
Secrets: None asked for
Install scripts: Not scanned yet
Runs as: Python package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 2 · Look things up without changing anything.

guardrail_agent_history
guardrail_check

Write 1 · Create, change, send or run things.

guardrail_record_outcome

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

guardrail_agent_history
Return recent decision history for a given agent — a real, persisted audit trail.
guardrail_check
Evaluate a proposed tool call against the Guardrail policy BEFORE executing it. Returns ALLOW, WARN, or BLOCK with a concrete explanation. Always call this before performing any action that spends money, deletes data, sends messages externally, or runs code.
guardrail_record_outcome
Record the real-world outcome (success/error) of a previously-checked action, for the audit trail.

Signals

Stars: 1
Forks: 0
Open issues: 0
Weekly downloads: 34
Last commit: Sep 22, 2026 (1 month ago)
Last release: Aug 6, 2026 (2 months ago)
Last package publish: Aug 6, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name: io.github.rudimentall1/agent-guardrail
Version: 1.0.2
Auth: No auth
Packages: pypi guardrail-mcp
License: MIT
Repository: github.com/rudimentall1/agent-guardrail
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql