aegis-authn-session SKILL.md skillA

aegis-authn-session from as-foss/aegis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add as-foss/aegis-skills/aegis-authn-session@git:20260826.9702747

Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
as-foss/aegis-skills
Path
skills/code/authn-session/SKILL.md
Versions recorded
3
Latest version
git:20260826.9702747, committed Aug 26, 2026
First version recorded
Aug 25, 2026
Size
40,229 bytes
Repository stars
16
License
Apache-2.0

Detect authentication and session management failures across login, password storage, password reset, MFA, session lifecycle, JWT/OAuth/API-key handling, remember-me, and session storage.

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

# AuthN & Session Management Checks

## Scope & Objectives

- Audit every path that establishes identity (login, register, SSO/OAuth callback), extends it (remember-me, refresh tokens), or re-establishes it (password reset, recovery).
- Verify credentials are checked against strong one-way hashes and that sessions/tokens are issued, rotated, validated, and invalidated correctly.
- Detect enumeration, brute-force enablement, default/seeded credentials, mass assignment at registration, MFA bypasses, and JWT algorithm/validation flaws.
- Out of scope (cross-references): throttling depth and API abuse metrics -> `api.md`; object-level IDOR beyond reset-flow specifics -> `authz.md`; cookie attribute deep matrix -> `config.md`; hardcoded secret inventory -> `secrets.md`; redirect validation depth -> `ssrf.md`.

## Prerequisites & Vocabulary

Zero-background primer: the terms this module uses, one line each. Deeper plain-language
explanations for every class live in the repository GUIDE.md glossary.

- **session**: the server-side record plus browser cookie that keeps a user logged in after one successful login
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add as-foss/aegis-skills/aegis-authn-session@sha256:9e5396c1307ed215

The line at the top of this page pins the label git:20260826.9702747, 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_runjllrg2nkef6qa.svg)](https://markdownregistry.com/a/art_runjllrg2nkef6qa)

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

Versions

The registry has recorded 3 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20260826.9702747 latest2026-08-26 9702747 40,229 BA view · diff
git:20260825.85624bc2026-08-25 85624bc 40,230 BA view · diff
git:20260825.244c1982026-08-25 244c198 39,101 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 (40229 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

as-foss/aegis-skills · 16 stars · license Apache-2.0 · pushed 2026-08-26 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_runjllrg2nkef6qa
GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-authn-session
GET https://markdownregistry.com/api/v1/blob/9e5396c1307ed215a86ac3d629c057db439c96d814ae09884f9dfb5d217fd276

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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