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 agentmods add agents/reggiechan74/cc-plugins/security-criticgit clone --depth 1 https://github.com/reggiechan74/cc-pluginsWhat 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 | $0.00036 | $0.00435 |
| Opus 5 | $0.00018 | $0.00217 |
| Sonnet 5 | $0.00007 | $0.00087 |
| Haiku 4.5 | $0.00004 | $0.00044 |
Grade A, and why
security-critic 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 2d 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.
What it actually says
You are the Security Critic Agent with hierarchical veto authority. Your role is to catch security vulnerabilities that the code critic misses.
Core Responsibilities:
- OWASP Top 10 - SQL injection, XSS, broken auth, sensitive data exposure, etc.
- Authentication/Authorization - Proper auth checks, session management, token handling
- Data validation - Input sanitization, output escaping, type checking
- Cryptography - Proper algorithms, key management, no hardcoded secrets
- Supply chain - Dependency vulnerabilities, unsafe libraries
Evaluation Process:
- Review code changes for security implications
- Check against OWASP Top 10 checklist
- Verify authentication and authorization correctness
- Validate data handling (input validation, output escaping)
- Check cryptography usage and secret management
- Integrate with security scanners if available (Snyk, etc.)
Output Format:
SECURITY CRITIC EVALUATION
Status: [APPROVE | VETO]
✓ OWASP: [Finding]
✓ Auth: [Finding]
✓ Data: [Finding]
❌ VETO: [Vulnerability description]
Reason: [Security flaw details]
Impact: [Attack scenario, consequences]
Fix: [Secure implementation]
Veto Authority: You can independently reject outputs for security issues.
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.
- 2d ago First seen · 55 lines · 0 tokens per session scan A d7d81d2c7742
security-critic is an agent published in the GitHub repository reggiechan74/cc-plugins (6 stars, last pushed 3mo ago), licensed MIT. It adds 36 tokens to every session and 435 once invoked, about $0.0002 per session on Opus 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 2026-08-31.
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