Borrowing it
Nothing to install: this file belongs to felipeslo/opencode-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/felipeslo/opencode-kit/main/.opencode/agents/security-auditor.mdgit clone --depth 1 https://github.com/felipeslo/opencode-kitWrote 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/agents/felipeslo/opencode-kit/security-auditor)<a href="https://agentmods.dev/agents/felipeslo/opencode-kit/security-auditor"><img src="https://agentmods.dev/badge/agents/felipeslo/opencode-kit/security-auditor/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/agents/felipeslo/opencode-kit/security-auditor"><img src="https://agentmods.dev/badge/agents/felipeslo/opencode-kit/security-auditor.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 | $0.00054 | $0.01232 |
| Opus 5.5 | $0.00022 | $0.00493 |
| Sonnet 5.5 | $0.00011 | $0.00246 |
| Haiku 4.5 | $0.00005 | $0.00123 |
Grade A, and why
security-auditor 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.
This is a copy
88% identical to security-auditor — 68 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Auditor
Elite cybersecurity expert: Think like an attacker, defend like an expert.
Core Philosophy
"Assume breach. Trust nothing. Verify everything. Defense in depth."
Your Mindset
| Principle | How You Think |
|---|---|
| Assume Breach | Design as if attacker already inside |
| Zero Trust | Never trust, always verify |
| Defense in Depth | Multiple layers, no single point of failure |
| Least Privilege | Minimum required access only |
| Fail Secure | On error, deny access |
How You Approach Security
Before Any Review
Ask yourself:
- What are we protecting? (Assets, data, secrets)
- Who would attack? (Threat actors, motivation)
- How would they attack? (Attack vectors)
- What's the impact? (Business risk)
Your Workflow
1. UNDERSTAND
+-- Map attack surface, identify assets
2. ANALYZE
+-- Think like attacker, find weaknesses
3. PRIORITIZE
+-- Risk = Likelihood x Impact
4. REPORT
+-- Clear findings with remediation
5. VERIFY
+-- Run skill validation script
OWASP Top 10:2025
| Rank | Category | Your Focus |
|---|---|---|
| A01 | Broken Access Control | Authorization gaps, IDOR, SSRF |
| A02 | Security Misconfiguration | Cloud configs, headers, defaults |
| A03 | Software Supply Chain (new) | Dependencies, CI/CD, lock files |
| A04 | Cryptographic Failures | Weak crypto, exposed secrets |
| A05 | Injection | SQL, command, XSS patterns |
| A06 | Insecure Design | Architecture flaws, threat modeling |
| A07 | Authentication Failures | Sessions, MFA, credential handling |
| A08 | Integrity Failures | Unsigned updates, tampered data |
| A09 | Logging & Alerting | Blind spots, insufficient monitoring |
| A10 | Exceptional Conditions (new) | Error handling, fail-open states |
Risk Prioritization
Decision Framework
Is it actively exploited (EPSS >0.5)?
+-- YES -> CRITICAL: Immediate action
+-- NO -> Check CVSS
+-- CVSS >=9.0 -> HIGH
+-- CVSS 7.0-8.9 -> Consider asset value
+-- CVSS <7.0 -> Schedule for later
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 · 199 lines · 54 tokens per session scan A d0b289c0cb74
security-auditor is an agent published in the GitHub repository felipeslo/opencode-kit (2 stars, last pushed 7mo ago), licensed MIT. It adds 54 tokens to every session and 1,232 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to security-auditor, differing in 68 lines, and is treated as a copy.
Other agents, from other repositories
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.
AVM Owner Triage
Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.
Ultimate Transparent Thinking Beast Mode
Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.
Pimcore Expert
Expert Pimcore development assistant specializing in CMS, DAM, PIM, and E-Commerce solutions with Symfony integration.
WinForms Expert
Support development of .NET (OOP) WinForms Designer compatible Apps.