Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add decebals/claude-code-java --skill security-auditgit clone --depth 1 https://github.com/decebals/claude-code-javaWrote 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/decebals/claude-code-java/security-audit)<a href="https://agentmods.dev/skills/decebals/claude-code-java/security-audit"><img src="https://agentmods.dev/badge/skills/decebals/claude-code-java/security-audit/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/decebals/claude-code-java/security-audit"><img src="https://agentmods.dev/badge/skills/decebals/claude-code-java/security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 383 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 | $0.00055 | $0.03467 |
| Opus 5.5 | $0.00022 | $0.01387 |
| Sonnet 5.5 | $0.00011 | $0.00693 |
| Haiku 4.5 | $0.00006 | $0.00347 |
Grade A, and why
security-audit scanned grade A with 0 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 1mo 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 558 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Audit Skill
Security checklist for Java applications based on OWASP Top 10 and secure coding practices.
When to Use
- Security code review
- Before production releases
- User asks about "security", "vulnerability", "OWASP"
- Reviewing authentication/authorization code
- Checking for injection vulnerabilities
OWASP Top 10 Quick Reference
| # | Risk | Java Mitigation |
|---|---|---|
| A01 | Broken Access Control | Role-based checks, deny by default |
| A02 | Cryptographic Failures | Use strong algorithms, no hardcoded secrets |
| A03 | Injection | Parameterized queries, input validation |
| A04 | Insecure Design | Threat modeling, secure defaults |
| A05 | Security Misconfiguration | Disable debug, secure headers |
| A06 | Vulnerable Components | Dependency scanning, updates |
| A07 | Authentication Failures | Strong passwords, MFA, session management |
| A08 | Data Integrity Failures | Verify signatures, secure deserialization |
| A09 | Logging Failures | Log security events, no sensitive data |
| A10 | SSRF | Validate URLs, allowlist domains |
Input Validation (All Frameworks)
Bean Validation (JSR 380)
Works in Spring, Quarkus, Jakarta EE, and standalone.
// ✅ GOOD: Validate at boundary
public class CreateUserRequest {
@NotNull(message = "Username is required")
@Size(min = 3, max = 50, message = "Username must be 3-50 characters")
@Pattern(regexp = "^[a-zA-Z0-9_]+$", message = "Username can only contain letters, numbers, underscore")
private String username;
@NotNull
@Email(message = "Invalid email format")
private String email;
@NotNull
@Size(min = 8, max = 100)
@Pattern(regexp = "^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).*$",
message = "Password must contain uppercase, lowercase, and number")
private String password;
@Min(value = 0, message = "Age cannot be negative")
@Max(value = 150, message = "Invalid age")
private Integer age;
}
// Controller/Resource - trigger validation
public Response createUser(@Valid CreateUserRequest request) {
// request is already validated
}
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 558 lines · 55 tokens per session scan A 9c4f4da95e5b
security-audit is a skill published in the GitHub repository decebals/claude-code-java (754 stars, last pushed 1mo ago), licensed MIT. It adds 55 tokens to every session and 3,467 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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