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Dev.to
7/10/2026
The original title is: "resk-llm-ts: Open Source TypeScript Security Toolkit for LLM Applications"

The original title is: "resk-llm-ts: Open Source TypeScript Security Toolkit for LLM Applications"

Original: resk-llm-ts: Open Source TypeScript Security Toolkit for LLM Applications

Short summary

resk-llm-ts is an open-source TypeScript security toolkit providing 11 threat detectors for LLM applications, covering prompt injection, jailbreaks, PII leaks, data exfiltration, and more. It integrates as Express or Hono middleware, or as a drop-in OpenAI-compatible wrapper with zero API changes. The toolkit supports block or log modes and is released under GPL-3.0.

  • 11 threat detectors covering injection, jailbreak, PII, exfiltration, and more
  • Works as Express/Hono middleware or OpenAI-compatible wrapper with zero API changes
  • GPL-3.0 open source, TypeScript-first with full type definitions

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