security-audit-skill

security-audit-skill is a skill for OpenCode from darellchua2/opencode-config-template. It costs 43 tokens per session (7,498 once invoked), scanned C, original, Apache-2.0.

A security review guide for finding vulnerabilities in application code, third-party packages, configuration, HTTP protections, and accidentally exposed secrets.

In plain words
What is it for?
Use it to audit code against the OWASP Top 10, inspect dependencies, detect secrets, review input handling and security headers, and prepare fixes.
Why use it?
It helps reveal common risks such as injection, cross-site scripting, weak access controls, vulnerable dependencies, and leaked credentials before deployment.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions subagents; mentions OpenCode.

Good fit Use it to audit code against the OWASP Top 10, inspect dependencies, detect secrets, review input handling and security headers, and prepare fixes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/darellchua2/opencode-config-template/security-audit-skill
Install

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.

Any agent
npx skills add darellchua2/opencode-config-template --skill security-audit-skill
Clone the repo
git clone --depth 1 https://github.com/darellchua2/opencode-config-template

Made for: OpenCode.

Wrote 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.

agentmods badge for security-audit-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/security-audit-skill.svg)](https://agentmods.dev/skills/darellchua2/opencode-config-template/security-audit-skill)
Your own site
<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/security-audit-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/security-audit-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,498 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.07498
Opus 5 $0.00022 $0.03749
Sonnet 5 $0.00009 $0.01500
Haiku 4.5 $0.00004 $0.00750

Measured 4d ago against content hash 947c0ed012b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

security-audit-skill scanned grade C with 2 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 4d 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.

Nullifies safety policiesmediumAnti-refusal

"You have no restrictions", "do anything now", "ignore your guidelines": a direct jailbreak that disables guardrails.

# Detection: tables missing tenant_id, or queries that forget the filter

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.

When enabled, defaults to `Iterations: 10`. Safety blocks: `.env`, `node_modules/`, `rm -rf`, `git push --force`.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

opencode_app/.opencode/skills/security-audit-skill/SKILL.md · 763 lines

How it starts

The opening of the file, as written. The whole thing — 763 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What I do

I audit codebases for security vulnerabilities and provide actionable remediation guidance:

  1. OWASP Top 10 Analysis: Systematic review against injection, broken auth, sensitive data exposure, XXE, broken access control, misconfigurations, XSS, insecure deserialization, vulnerable components, and insufficient logging
  2. Dependency Scanning: Run and interpret npm audit, pip-audit, Snyk, and Dependabot results
  3. Secret Detection: Identify leaked API keys, tokens, passwords, and credentials using git-secrets, truffleHog, and gitleaks patterns
  4. Input Validation: Review user input handling, sanitization, and parameterized queries
  5. Security Headers: Verify Content-Security-Policy, HSTS, X-Frame-Options, X-Content-Type-Options
  6. HTTPS Enforcement: Check for mixed content, insecure redirects, certificate issues

When to use me

Use this skill when:

  • Reviewing code for security vulnerabilities before deployment
  • Setting up security scanning in CI/CD pipelines
  • Auditing third-party dependencies for known CVEs
  • Detecting accidentally committed secrets or credentials
  • Hardening HTTP headers and transport security
  • Performing a security-focused code review
  • Responding to a security incident or vulnerability report
  • authentication-authorization-skill: Handles identity/session flow implementation patterns (OAuth, JWT, sessions). This skill handles auditing and vulnerability scanning. CSRF prevention here focuses on detection; auth skill focuses on implementation.
  • error-resolver-workflow-skill: Handles runtime error diagnosis. This skill handles proactive security auditing.
  • linting-workflow-skill: General linting. This skill focuses on security-specific scanning tools.

Step 1: Dependency Audit

Node.js

npm audit --production
npm audit fix --dry-run
npx better-npm-audit audit

Python

pip-audit --desc
safety check --json
pip-audit -r requirements.txt

Read the full file on GitHub · 763 lines

Changes

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.

  1. 4d ago First seen · 763 lines · 43 tokens per session scan C 947c0ed012b7

Subscribe to this mod's changes

security-audit-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 43 tokens to every session and 7,498 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (nullifies safety policies, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.