测试与安全

signed-audit-trails-recipe

wshobson/agents

Step-by-step cookbook for setting up cryptographically signed audit trails on Claude Code tool calls. Use when explaining, evaluating, or demonstrating the pattern before committing to the protect-mcp runtime hooks. Covers Cedar policy, Ed25519 receipts, offline verification, tamper detection, CI/CD integration, and SLSA composition.

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安装命令

npx skills add https://github.com/wshobson/agents --skill signed-audit-trails-recipe

SKILL.md

Signed Audit Trails for Claude Code Tool Calls

Cookbook-style walkthrough for cryptographically signed receipts on every Claude Code tool call. This is the teaching skill. For the runtime implementation, install the protect-mcp plugin.

What this gives you

Every tool call (Bash, Edit, Write, WebFetch) is:

  1. Evaluated against a Cedar policy before execution. If the policy denies the call, the tool does not run.
  2. Signed as an Ed25519 receipt after execution. Receipts are JCS-canonical and verifiable offline by anyone with the public key.

An auditor, regulator, or counterparty can verify every receipt later (Step 5). No network call, no vendor lookup, no trust in the operator.

When to use the pattern