sentinel skillA
sentinel is agent-read markdown (skill) from simota/agent-skills: Analyzing code statically for security flaws: hardcoded secrets, SQL injection, input validation, security headers, dependency CVEs. Not for runtime exploit checks (Probe) or code review (Judge)..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add simota/agent-skills/sentinel@git:20260820.4d4eeeamdr add simota/agent-skills/sentinel@sha256:fa6a394267a350f3Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_jybuimklt2cwtvsh)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260820.4d4eeea latest | 2026-08-20 | 4d4eeea | 23,573 B | A | view · diff |
| git:20260820.9805aa1 | 2026-08-20 | 9805aa1 | 23,550 B | A | view · diff |
| git:20260819.9d3efaf | 2026-08-19 | 9d3efaf | 23,344 B | A | view · diff |
| git:20260812.de4cf1f | 2026-08-12 | de4cf1f | 23,580 B | A | view · diff |
| git:20260812.c07d803 | 2026-08-12 | c07d803 | 24,981 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 (23573 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
simota/agent-skills · 78 stars · license MIT · pushed 2026-09-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jybuimklt2cwtvsh GET https://markdownregistry.com/api/v1/resolve?ref=simota/agent-skills/sentinel GET https://markdownregistry.com/api/v1/blob/fa6a394267a350f38580f2d0c34be8b27297e0233930b9a6f80a8b0b218ddaee
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.