Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/mehdiozdemir/awesome-agent-skillsnpx agentmods add skills/mehdiozdemir/awesome-agent-skills/security-scannerWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mehdiozdemir/awesome-agent-skills/security-scanner)<a href="https://agentmods.dev/skills/mehdiozdemir/awesome-agent-skills/security-scanner"><img src="https://agentmods.dev/badge/skills/mehdiozdemir/awesome-agent-skills/security-scanner/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mehdiozdemir/awesome-agent-skills/security-scanner"><img src="https://agentmods.dev/badge/skills/mehdiozdemir/awesome-agent-skills/security-scanner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00056 | $0.05755 |
| Opus 5 | $0.00028 | $0.02877 |
| Sonnet 5 | $0.00011 | $0.01151 |
| Haiku 4.5 | $0.00006 | $0.00575 |
Grade D, and why
security-scanner scanned grade D with 6 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Encoded or obfuscated payloadmediumSupply chain
base64 or hex that is decoded and executed hides what actually runs from anyone reading the file.
return eval(expression) # expression = "__import__('os').system('rm -rf /')" Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Cloud metadata endpointmediumServer-side request forgery
One request to 169.254.169.254 can return temporary IAM credentials.
response = requests.get(url) # url = "http://169.254.169.254/..." Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Unrestricted tool accesslowExcessive agency
A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.
return yaml.load(config_str) # Can execute arbitrary code! Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Recursive force deletemediumDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
os.system(f"ping -c 1 {host}") # host = "google.com; rm -rf /" Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
response = requests.get(url) # url = "http://169.254.169.254/..." Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
os.system(f"ping -c 1 {host}") # host = "google.com; rm -rf /" How it starts
The opening of the file, as written. The whole thing — 893 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Scanner Skill
This skill identifies security vulnerabilities, misconfigurations, and potential attack vectors in code. Use this whenever you need to audit code for security issues, review sensitive implementations, or ensure compliance with security best practices.
Security Analysis Scope
1. OWASP Top 10 Vulnerabilities
The most critical web application security risks:
| # | Vulnerability | Description |
|---|---|---|
| A01 | Broken Access Control | Unauthorized access to resources |
| A02 | Cryptographic Failures | Weak encryption, exposed sensitive data |
| A03 | Injection | SQL, NoSQL, OS, LDAP injection |
| A04 | Insecure Design | Missing security controls by design |
| A05 | Security Misconfiguration | Default configs, verbose errors |
| A06 | Vulnerable Components | Outdated dependencies with CVEs |
| A07 | Authentication Failures | Weak auth, credential stuffing |
| A08 | Data Integrity Failures | Insecure deserialization, CI/CD |
| A09 | Logging Failures | Insufficient logging/monitoring |
| A10 | SSRF | Server-Side Request Forgery |
2. CWE Categories
Common Weakness Enumeration patterns:
- CWE-79: Cross-Site Scripting (XSS)
- CWE-89: SQL Injection
- CWE-22: Path Traversal
- CWE-78: OS Command Injection
- CWE-352: Cross-Site Request Forgery (CSRF)
- CWE-434: Unrestricted File Upload
- CWE-502: Deserialization of Untrusted Data
- CWE-611: XML External Entity (XXE)
- CWE-798: Hardcoded Credentials
- CWE-918: Server-Side Request Forgery
3. Secret Detection
Exposed credentials and sensitive data:
- API keys and tokens
- Database passwords
- Private keys and certificates
- OAuth secrets
- AWS/GCP/Azure credentials
- JWT secrets
- Encryption keys
Security Scan Process
Step 1: Initial Assessment
- Identify the application type (web, API, mobile, etc.)
- Determine the technology stack
- Identify security-sensitive areas (auth, payments, data)
- Review the architecture for attack surface
- Check for existing security controls
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 893 lines · 56 tokens per session scan D b5c09b26fc05
security-scanner is a skill published in the GitHub repository mehdiozdemir/awesome-agent-skills (2 stars, last pushed 7mo ago), licensed MIT. It adds 56 tokens to every session and 5,755 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it D with 6 findings (encoded or obfuscated payload, cloud metadata endpoint, unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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