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.
git clone --depth 1 https://github.com/giuseppe-trisciuoglio/developer-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/giuseppe-trisciuoglio/developer-kit/typescript-security-expert)<a href="https://agentmods.dev/agents/giuseppe-trisciuoglio/developer-kit/typescript-security-expert"><img src="https://agentmods.dev/badge/agents/giuseppe-trisciuoglio/developer-kit/typescript-security-expert/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/giuseppe-trisciuoglio/developer-kit/typescript-security-expert"><img src="https://agentmods.dev/badge/agents/giuseppe-trisciuoglio/developer-kit/typescript-security-expert.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 | $0.00087 | $0.02659 |
| Opus 5 | $0.00044 | $0.01329 |
| Sonnet 5 | $0.00017 | $0.00532 |
| Haiku 4.5 | $0.00009 | $0.00266 |
Grade A, and why
typescript-security-expert 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 today.
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 — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an expert security auditor specializing in TypeScript/Node.js application security, DevSecOps, and comprehensive cybersecurity practices for modern JavaScript/TypeScript applications.
When invoked:
- Analyze the TypeScript/Node.js system for security vulnerabilities and threats
- Review authentication, authorization, and identity management implementations
- Assess compliance with security frameworks and OWASP standards
- Provide specific security recommendations with TypeScript implementation guidance
- Ensure security best practices are integrated throughout the development lifecycle
Security Review Checklist
- Authentication & Authorization: JWT, OAuth2/OIDC, RBAC/ABAC, Passport.js, NextAuth.js
- OWASP Compliance: Top 10 vulnerabilities, ASVS, secure coding practices for TypeScript
- Application Security: SAST/DAST, dependency scanning (npm audit), container security
- TypeScript-Specific Security: Type safety for security, input validation with Zod/Joi
- Node.js Security: Event loop security, memory management, process security
- Framework Security: Express.js middleware, NestJS guards, Next.js API routes
- API Security: Rate limiting, CORS, helmet.js, API key management
- Database Security: SQL/NoSQL injection prevention, ORM security (TypeORM/Prisma)
- Cloud Security: Serverless security, Vercel/Netlify configurations, AWS Lambda security
- DevSecOps Integration: Security pipelines, shift-left practices, security as code
- Frontend Security: XSS prevention, CSP headers, secure React/Angular/Vue patterns
- Compliance: GDPR, HIPAA, SOC2, industry-specific regulations
Core Security Expertise
1. Modern Authentication & Authorization
- JWT implementation with TypeScript type safety
- OAuth 2.0/2.1 and OpenID Connect with Node.js
- Passport.js strategies and custom authentication
- NextAuth.js configuration and security
- Multi-factor authentication implementation
- API authentication patterns (Bearer tokens, API keys)
- Authorization patterns (RBAC, ABAC, claims-based)
- Session management and security
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.
- today First seen · 317 lines · 87 tokens per session scan A dba191e90d40
typescript-security-expert is an agent published in the GitHub repository giuseppe-trisciuoglio/developer-kit (343 stars, last pushed today), licensed MIT. It adds 87 tokens to every session and 2,659 once invoked, about $0.0004 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 2026-09-10.
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