signed-audit-trails-recipe SKILL.md skillA
signed-audit-trails-recipe from wshobson/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wshobson/agents/signed-audit-trails-recipe@git:20261105.9ecda7fPins git:20261105.9ecda7f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wshobson/agents
- Path
plugins/signed-audit-trails/skills/signed-audit-trails-recipe/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261105.9ecda7f, committed Nov 5, 2026
- First version recorded
- Apr 17, 2026
- Size
- 10,136 bytes
- Repository stars
- 42,320
- License
- MIT
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.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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`](../../../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 - **Regulated environments** (finance, healthcare, critical infrastructure) where you need tamper-evident evidence of agent behavior - **CI/CD pipelines** where you want to prove that a policy gate held for every automated build step - **Multi-party collaboration** where a counterparty wants to verify your agent's behavior without trusting your operator …
Read the whole file at its exact version.
How to install
mdr add wshobson/agents/signed-audit-trails-recipe@sha256:c021f598e6af7c63The line at the top of this page pins the label git:20261105.9ecda7f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_evolof3f5r4vmta4)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Apr 17, 2026 and Nov 5, 2026, about one every 50 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261105.9ecda7f latest | 2026-11-05 | 9ecda7f | 10,136 B | A | view · diff |
| git:20261015.13703c9 | 2026-10-15 | 13703c9 | 10,107 B | A | view · diff |
| git:20260926.8b957cd | 2026-09-26 | 8b957cd | 10,086 B | A | view · diff |
| git:20260926.6161de4 | 2026-09-26 | 6161de4 | 10,642 B | A | view · diff |
| git:20260417.7d7fb73 | 2026-04-17 | 7d7fb73 | 11,614 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10136 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
wshobson/agents · 42,320 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_evolof3f5r4vmta4 GET https://markdownregistry.com/api/v1/resolve?ref=wshobson/agents/signed-audit-trails-recipe GET https://markdownregistry.com/api/v1/blob/c021f598e6af7c638a1e28bb171941aba47aab1e7e28dd96004800ee174510dd
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.