askalf

Redstamp — Security skill for Claude Code

Security community

own your agent security — a deterministic, offline firewall for AI agent tool calls.

How to install Redstamp

This entry records only its repository, not the path inside it, so there is no exact command to give. Open askalf/redstamp and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Redstamp does

own your agent security — a deterministic, offline firewall for AI agent tool calls. Blocks secret exfil, prompt injection and destructive commands before they run; same call, same verdict, no model in the decision path. 100% recall / 100% precision on a 298-sample corpus, scored in CI against live rivals. Claude Code hook or MCP proxy.

Alternatives in Security

  • ThinkWatch — Self-hosted AI API and MCP gateway for organizations: SSO and RBAC, per-user identity for MCP tool calls, PII 817 ★
  • Unifly Audit — Security audit of UniFi configuration 248 ★
  • Preloop — The open-source AI agent control plane: MCP firewall, model gateway with budgets, human approvals, runtime obs 54 ★

README

redstamp

**A deterministic, offline firewall for AI agent tool calls.**

Same call → same verdict, every time. No model in the decision path. Zero runtime dependencies.

[![release](https://img.shields.io/github/v/release/askalf/redstamp?logo=github)](https://github.com/askalf/redstamp/releases/latest) [![ci](https://github.com/askalf/redstamp/actions/workflows/ci.yml/badge.svg)](https://github.com/askalf/redstamp/actions/workflows/ci.yml) [![CodeQL](https://github.com/askalf/redstamp/actions/workflows/codeql.yml/badge.svg)](https://github.com/askalf/redstamp/actions/workflows/codeql.yml) [![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/askalf/redstamp/badge)](https://scorecard.dev/viewer/?uri=github.com/askalf/redstamp) [![license: MIT](https://img.shields.io/badge/license-MIT-blue)](LICENSE) [![dependencies: 0](https://img.shields.io/badge/dependencies-0-brightgreen)](package.json) [![signed release](https://img.shields.io/badge/release-sigstore_signed-brightgreen?logo=github)](https://github.com/askalf/redstamp/releases/latest) [![threat model](https://img.shields.io/badge/threat_model-SECURITY.md-informational)](SECURITY.md)

[Quick start](#quick-start) · [Scoreboard](#the-scoreboard) · [How it decides](#how-it-decides) · [Surfaces](#every-surface-an-agent-uses) · [Integrating](INTEGRATING.md) · [Threat model](SECURITY.md)


import { check, AuditLog } from '@askalf/redstam