protect-mcp-setup SKILL.md skillA
protect-mcp-setup from rudycity/superagent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rudycity/superagent/protect-mcp-setup@git:20260626.019dba9Pins git:20260626.019dba9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rudycity/superagent
- Path
.agents/skills/protect-mcp-setup/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260626.019dba9, committed Jun 26, 2026
- Size
- 6,342 bytes
- Repository stars
- 64
- License
- MIT
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.
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
# 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 AI agents make decisions that affect money, safety, and rights. The Claude Code session log records what happened, but the log is: - Mutable — anyone with access can edit it - Unsigned — there is no way to prove integrity - Operator-bound — verification requires trusting whoever holds the log …
Read the whole file at its exact version.
How to install
mdr add rudycity/superagent/protect-mcp-setup@sha256:3a15eb2b5197ffc8The line at the top of this page pins the label git:20260626.019dba9, 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_ub3xlu5drtpd5esv)
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Versions
The registry has recorded 1 version of this file, committed on Jun 26, 2026.
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 (6342 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
rudycity/superagent · 64 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ub3xlu5drtpd5esv GET https://markdownregistry.com/api/v1/resolve?ref=rudycity/superagent/protect-mcp-setup GET https://markdownregistry.com/api/v1/blob/3a15eb2b5197ffc8fcef9f79a85b4c294c7ccbb9eac6a26d86719265c61be07c
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.
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