Configure Cedar policy enforcement and Ed25519 signed receipts for Claude Code tool calls. Use when setting up projects that need cryptographic audit trails, policy-gated tool execution, or compliance-ready evidence o…
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name: protect-mcp-setup
description: Configure Cedar policy enforcement and Ed25519 signed receipts for Claude Code tool calls. Use when setting up projects that need cryptographic audit trails, policy-gated tool execution, or compliance-ready evidence of agent actions.
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# protect-mcp — Policy Enforcement + Signed Receipts
Cryptographic governance for every Claude Code tool call. Each invocation is
evaluated against a Cedar policy and produces an Ed25519-signed receipt that
anyone can verify offline.
## Overview
Claude Code runs powerful tools: `Bash`, `Edit`, `Write`, `WebFetch`. By default
there is no audit trail, no policy enforcement, and no way to prove what was
decided after the fact. `protect-mcp` closes all three gaps:
- **Cedar policies** (AWS's open authorization engine) evaluate every tool call
before execution. Cedar deny is authoritative.
- **Ed25519 receipts** record each decision with its inputs, the policy that
governed it, and the outcome. Receipts are hash-chained.
- **Offline verification** via `npx @veritasacta/verify`. No server, no account,
no trust in the operator.
## Problem… load the full skill through Skill Me