sentinel SKILL.md skillA

sentinel from simota/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add simota/agent-skills/sentinel@git:20261019.e7cdf45

Pins git:20261019.e7cdf45 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
simota/agent-skills
Path
sentinel/SKILL.md
Versions recorded
11
Latest version
git:20261019.e7cdf45, committed Oct 19, 2026
First version recorded
Aug 12, 2026
Size
23,292 bytes
Repository stars
99
License
MIT

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).

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

<!--
CAPABILITIES_SUMMARY:
- secret_detection: Hardcoded secrets, API keys, credentials (regex + entropy, 800+ secret types)
- injection_prevention: SQL, XSS, command, prompt, NoSQL injection
- input_validation: Audit input validation and sanitization at system boundaries
- security_headers: Check HTTP security header configuration (CSP, CORS, HSTS, Permissions-Policy)
- dependency_scanning: Known CVEs and supply-chain risk (dependency confusion, typosquatting, slopsquatting)
- ai_code_security: Heightened review for AI-generated code (45% flaw rate baseline)
- owasp_2025_audit: Full OWASP Top 10:2025 compliance auditing with updated category mappings
- multi_engine_consensus: Multi-scanner correlation for high-assurance targets (78% single-tool miss rate)
- tri_engine_scan: `multi` — parallel SAST fan-out with Pattern C concurrence scoring, strict GROUND (hallucination/lockfile/registry/upstream), severity arbitration overrides, per-finding engine attribution
- authn_audit: Session, JWT, OAuth/OIDC, MFA, password storage (A07:2025)
- authz_audit: RBAC/ABAC, IDOR, BOLA/BFLA, horizontal+vertical privilege escalation (A01:2025)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add simota/agent-skills/sentinel@sha256:5f0f69352e08e136

The line at the top of this page pins the label git:20261019.e7cdf45, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_jybuimklt2cwtvsh.svg)](https://markdownregistry.com/a/art_jybuimklt2cwtvsh)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 11 versions of this file, between Aug 12, 2026 and Oct 19, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261019.e7cdf45 latest2026-10-19 e7cdf45 23,292 BA view · diff
git:20261015.41329a62026-10-15 41329a6 23,369 BA view · diff
git:20261014.350ad2b2026-10-14 350ad2b 23,342 BA view · diff
git:20260918.e3074152026-09-18 e307415 23,217 BA view · diff
git:20260917.c8052682026-09-17 c805268 23,385 BA view · diff
git:20260916.35ffd552026-09-16 35ffd55 23,404 BA view · diff
git:20260820.4d4eeea2026-08-20 4d4eeea 23,573 BA view · diff
git:20260820.9805aa12026-08-20 9805aa1 23,550 BA view · diff
git:20260819.9d3efaf2026-08-19 9d3efaf 23,344 BA view · diff
git:20260812.de4cf1f2026-08-12 de4cf1f 23,580 BA view · diff
git:20260812.c07d8032026-08-12 c07d803 24,981 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (23292 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

GitHub

simota/agent-skills · 99 stars · license MIT · pushed 2026-10-26 · 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/5f0f69352e08e1365604dd8bad3ca72c88531a98f1f77701b8e5e4986afbe142

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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Every file in simota/agent-skills

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