cybozu/prompt-hardener
Prompt Hardener analyzes prompt-injection-originated risk in LLM-based agents and applications.
This tool helps security engineers and developers identify and mitigate prompt injection risks in their AI applications. You provide a description of your LLM-based agent or application, and it analyzes potential vulnerabilities, suggests fixes, and simulates attacks to validate your defenses. The output is a clear report in formats like Markdown or HTML, showing where your system might be exploited and how to strengthen it.
Use this if you are building or maintaining an LLM-based agent or application and need to systematically find and fix prompt injection vulnerabilities.
Not ideal if you are looking for a general-purpose LLM security testing tool that covers risks beyond prompt injection.
Stars
44
Forks
6
Language
Python
License
Apache-2.0
Category
Last pushed
Mar 13, 2026
Commits (30d)
0
Get this data via API
curl "https://pt-edge.onrender.com/api/v1/quality/prompt-engineering/cybozu/prompt-hardener"
Open to everyone — 100 requests/day, no key needed. Get a free key for 1,000/day.
Higher-rated alternatives
liu00222/Open-Prompt-Injection
This repository provides a benchmark for prompt injection attacks and defenses in LLMs
lakeraai/pint-benchmark
A benchmark for prompt injection detection systems.
R3dShad0w7/PromptMe
PromptMe is an educational project that showcases security vulnerabilities in large language...
StavC/Here-Comes-the-AI-Worm
Here Comes the AI Worm: Preventing the Propagation of Adversarial Self-Replicating Prompts...
mthamil107/prompt-shield
Self-learning prompt injection detection engine that gets smarter with every attack — 21...