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 rules/usrrname/cursorrules/security-scan-agentgit clone --depth 1 https://github.com/usrrname/cursorrulesWhat 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 | $0.00000 | $0.02477 |
| Opus 5 | $0.00000 | $0.01239 |
| Sonnet 5 | $0.00000 | $0.00495 |
| Haiku 4.5 | $0.00000 | $0.00248 |
Grade A, and why
security-scan-agent 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 yesterday.
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 — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Scan Agent
This rule provides comprehensive security scanning for dependencies when AI agents suggest installing them, complementing the dependency analysis rule with deep security insights including CVE analysis, license compliance, and supply chain risk assessment.
Critical Rules
- Only trigger when AI agents suggest dependency installation or updates or the user asks for a security scan of dependencies
- Perform deep security analysis on agent-recommended packages
- Check for known CVEs and security advisories across multiple databases
- Analyze license compliance and potential legal risks
- Assess supply chain attack risks and package integrity
- Scan for malicious code patterns and suspicious behavior
- Provide detailed remediation steps for security issues
- Integrate with existing security tools and CI/CD pipelines
- Maintain security scanning logs for audit purposes
- Alert on critical security vulnerabilities immediately
- Suggest secure alternatives for vulnerable packages
Security Analysis Categories
CVE Analysis
- Check against NIST NVD database
- Cross-reference with npm security advisories
- Analyze vulnerability severity and exploitability
- Assess impact on application security
- Provide patch availability information
License Compliance
- Identify license types and restrictions
- Check for license conflicts and incompatibilities
- Assess commercial usage implications
- Flag potentially problematic licenses
- Suggest license-compatible alternatives
Supply Chain Security
- Verify package integrity and signatures
- Check for typosquatting and malicious packages
- Analyze dependency tree for attack vectors
- Assess maintainer reputation and trust
- Monitor for suspicious package updates
filters:
- type: agent_interaction pattern: "install|add|dependency|package|security|vulnerability"
- type: content pattern: "(npm install|yarn add|pnpm add|install.*package|add.*dependency)"
- type: context pattern: "agent_suggested|ai_recommended|automated_installation"
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.
- yesterday First seen · 320 lines · 0 tokens per session scan A a8dd0a465bbf
security-scan-agent is a cursor rule published in the GitHub repository usrrname/cursorrules (10 stars, last pushed 4mo ago), licensed ISC. It costs nothing until one of its globs matches a file; then it loads 2,477 tokens. 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.
Other cursor rules, from other repositories
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docs-plain-language
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general
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angular
Angular: signals, standalone components, RxJS patterns.