as-foss/aegis-skills · skills/server/firewall-edge/SKILL.md

aegis-firewall-edge skillB

Name: aegis-firewall-edge
Author: as-foss

aegis-firewall-edge is agent-read markdown (skill) from as-foss/aegis-skills: Audits host firewall state and network-edge exposure on Linux hosts — listener inventory and wildcard bindings, nftables/iptables/ufw/firewalld default-deny design, egress filtering, IPv6 parity, L4 rate limiting, admin-plane isolation, Docker NAT bypass, and cloud security-group reconciliation — with read-only evidence commands and hardened reference rulesets..

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

Latest version

mdr add as-foss/aegis-skills/aegis-firewall-edge@git:20260826.9702747

Exact content

mdr add as-foss/aegis-skills/aegis-firewall-edge@sha256:78304faf592a4490

Pin 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_fakp4ll6c2mwf6se.svg)](https://markdownregistry.com/a/art_fakp4ll6c2mwf6se)

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Versions

version	committed	commit	size	audit
git:20260826.9702747 latest	2026-08-26	9702747	38,897 B	B	view · diff
git:20260825.85624bc	2026-08-25	85624bc	38,898 B	B	view · diff
git:20260825.244c198	2026-08-25	244c198	37,917 B	B	view

Audit of the latest version

B 16 of 17 checks passed. Deterministic, no model, same answer every run.

fail: No link to a raw IP address (matched: http://169.254.169.254)
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (38897 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 script tag

Source

GitHub

as-foss/aegis-skills · 12 stars · license Apache-2.0 · pushed 2026-08-26 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_fakp4ll6c2mwf6se
GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-firewall-edge
GET https://markdownregistry.com/api/v1/blob/78304faf592a44907c1b6b294d80cb26c2572133a57c76db1424262e5fb2eb79