linux-security-hardening SKILL.md skillA
linux-security-hardening from peterbamuhigire/chwezi-dev-engine is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add peterbamuhigire/chwezi-dev-engine/linux-security-hardening@git:20260924.29cdc2bPins git:20260924.29cdc2b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- peterbamuhigire/chwezi-dev-engine
- Path
skills/security/linux-security-hardening/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260924.29cdc2b, committed Sep 24, 2026
- First version recorded
- May 19, 2026
- Size
- 14,332 bytes
- Repository stars
- 28
- License
- MIT
Use when hardening or auditing Debian and Ubuntu hosts for identity, sudo, PAM, MFA, permissions, AppArmor, auditd, kernel, patching, integrity, boot, encryption, and CIS controls.
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
# Linux Security Hardening Acknowledgement: Shared by Peter Bamuhigire, techguypeter.com, +256 784 464178. <!-- dual-compat-start --> ## Use When - Use when hardening a Debian/Ubuntu server — user/group/sudo hardening, file permission audits, PAM password policy + MFA, AppArmor mandatory access control, auditd system call logging, kernel sysctl hardening, file integrity monitoring (AIDE), rootkit detection (rkhunter/chkrootkit), unattended security patching, GRUB + UEFI + LUKS boot security, and CIS benchmark compliance. ## Evidence Produced | Category | Artifact | Format | Example | |----------|----------|--------|---------| | Security | Server hardening checklist | Markdown doc covering user/sudo, file permissions, PAM/MFA, and auditd findings | `docs/server/hardening-checklist.md` | ## References - Use the `references/` directory for deep detail after reading the core workflow below. <!-- dual-compat-end --> Defensive hardening for Debian 12 / Ubuntu 24.04 servers running multi-tenant SaaS. Covers the OS layer — users, permissions, PAM, mandatory access control, kernel, integrity, patching, and compliance. …
Read the whole file at its exact version.
How to install
mdr add peterbamuhigire/chwezi-dev-engine/linux-security-hardening@sha256:3793532e2ae696aeThe line at the top of this page pins the label git:20260924.29cdc2b, 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_vdm23lubxo2n7egw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 19, 2026 and Sep 24, 2026, about one every 43 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.29cdc2b latest | 2026-09-24 | 29cdc2b | 14,332 B | A | view · diff |
| git:20260718.4d4f6c1 | 2026-07-18 | 4d4f6c1 | 14,240 B | A | view · diff |
| git:20260712.a867952 | 2026-07-12 | a867952 | 14,246 B | A | view · diff |
| git:20260519.0f7f756 | 2026-05-19 | 0f7f756 | 14,779 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 (14332 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
peterbamuhigire/chwezi-dev-engine · 28 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vdm23lubxo2n7egw GET https://markdownregistry.com/api/v1/resolve?ref=peterbamuhigire/chwezi-dev-engine/linux-security-hardening GET https://markdownregistry.com/api/v1/blob/3793532e2ae696ae6db4f58b62e725358df5b0b94e3a7393a8c9f65fc07881be
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.