Harden

A security layer for AI coding agents

About Harden

Harden AIF is a free, local security tool for AI coding agents. Its post-trained model checks tool calls before they run, using your request and session context. It beat frontier models on key agent-security benchmarks, while keeping your repo and tool output on your machine.

Demo

Screenshots

Maker

Listed from Product Hunt. Claude Updates summarizes public launches and links back to the source.