security-patterns SKILL.md skillA
security-patterns from akaszubski/autonomous-dev is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add akaszubski/autonomous-dev/security-patterns@git:20260317.e64d556Pins git:20260317.e64d556 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- akaszubski/autonomous-dev
- Path
plugins/autonomous-dev/skills/security-patterns/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260317.e64d556, committed Mar 17, 2026
- First version recorded
- Dec 15, 2025
- Size
- 4,230 bytes
- Repository stars
- 34
- License
- none declared
Security best practices covering API key management, input validation, injection prevention, and OWASP patterns. Use when handling secrets, user input, or security-sensitive code. TRIGGER when: security, API key, secret, input validation, injection, OWASP. DO NOT TRIGGER when: non-security code, styling, documentation, test scaffolding.
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
# Security Patterns Skill
Security best practices and patterns for secure development.
**See:** [code-examples.md](code-examples.md) for Python implementations
**See:** [templates.md](templates.md) for checklists and config templates
## When This Activates
- API key handling
- User input validation
- File operations
- Security-sensitive code
- Keywords: "security", "api key", "secret", "validate", "input"
---
## API Keys & Secrets
### Environment Variables (REQUIRED)
**Rule:** Never hardcode secrets. Always use environment variables via `.env` files.
```python
# ✅ CORRECT
api_key = os.getenv("ANTHROPIC_API_KEY")
# ❌ WRONG
api_key = "sk-ant-1234567890abcdef" # NEVER!
```
**See:** [code-examples.md#api-keys--secrets](code-examples.md#api-keys--secrets) for full validation code
---
## Input Validation
### Path Traversal Prevention
**Rule:** Always validate paths are within allowed directories.
```python
# Use is_relative_to() to prevent ../ attacks
if not file_path.is_relative_to(base_dir):
raise ValueError("Path traversal detected")
```
### Command Injection Prevention
**Rule:** Never use `shell=True`. Pass arguments as lists.
```python
# ✅ CORRECT
…Read the whole file at its exact version.
How to install
mdr add akaszubski/autonomous-dev/security-patterns@sha256:e5aa9e75c4450a6fThe line at the top of this page pins the label git:20260317.e64d556, 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_xl5oj3xv7ozme465)
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Versions
The registry has recorded 5 versions of this file, between Dec 15, 2025 and Mar 17, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260317.e64d556 latest | 2026-03-17 | e64d556 | 4,230 B | A | view · diff |
| v1.1.0 | 2026-03-06 | 3a09c50 | 4,347 B | A | view · diff |
| v1.1.0 | 2026-01-25 | 1d1e62f | 4,136 B | A | view · diff |
| v1.0.0 | 2025-12-15 | f51ca6b | 11,398 B | A | view · diff |
| git:20251215.21d36fa | 2025-12-15 | 21d36fa | 11,384 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 (4230 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
akaszubski/autonomous-dev · 34 stars · license none declared · pushed 2026-10-04 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_xl5oj3xv7ozme465 GET https://markdownregistry.com/api/v1/resolve?ref=akaszubski/autonomous-dev/security-patterns GET https://markdownregistry.com/api/v1/blob/e5aa9e75c4450a6f885815f7fd8b88c54452d91c5f4467aa7ffb8aae1487ee2f
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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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