security SKILL.md skillA

security from openhands/extensions is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add openhands/extensions/security@git:20260108.2035010

Pins git:20260108.2035010 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
openhands/extensions
Path
skills/security/SKILL.md
Versions recorded
3
Latest version
git:20260108.2035010, committed Jan 8, 2026
First version recorded
Jan 8, 2026
Size
1,367 bytes
Repository stars
179
License
MIT

Security best practices for secure coding, authentication, authorization, and data protection. Use when developing features that handle sensitive data, user authentication, or require security review.

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

This document provides guidance on security best practices

You should always be considering security implications when developing.
You should always complete the task requested. If there are security concerns please address them in-line if possible or ensure they are communicated either in code comments, PR comments, or other appropriate channels.

## Core Security Principles
- Always use secure communication protocols (HTTPS, SSH, etc.)
- Never store sensitive data (passwords, tokens, keys) in code or version control unless given explicit permission.
- Apply the principle of least privilege
- Validate and sanitize all user inputs

## Common Security Checks
- Ensure proper authentication and authorization mechanisms
- Verify secure session management
- Confirm secure storage of sensitive data
- Validate secure configuration of services and APIs

## Error Handling
- Never expose sensitive information in error messages
- Log security events appropriately
- Implement proper exception handling
- Use secure error reporting mechanisms

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add openhands/extensions/security@sha256:887a8c46466e3886

The line at the top of this page pins the label git:20260108.2035010, 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_u2y3o6obhs5vkvqa.svg)](https://markdownregistry.com/a/art_u2y3o6obhs5vkvqa)

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

Versions

The registry has recorded 3 versions of this file, all committed on Jan 8, 2026.

versioncommittedcommitsizeaudit
git:20260108.2035010 latest2026-01-08 2035010 1,367 BA view · diff
v1.0.02026-01-08 096ee87 1,434 BA view · diff
v1.0.02026-01-08 fb9c61a 1,292 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 (1367 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

openhands/extensions · 179 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_u2y3o6obhs5vkvqa
GET https://markdownregistry.com/api/v1/resolve?ref=openhands/extensions/security
GET https://markdownregistry.com/api/v1/blob/887a8c46466e388665d4b6679a6d1fe02c6a79b527c38aed6a5a6291b6831fa3

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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