Harden

For engineering teams: Harden secures AI coding agents by checking tool calls before execution, keeping your repo and outputs local while preventing malicious actions.

Built by Anurag S, Ankit Joshi, Krishna Guda and 5 others · Free

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Product Hunt listing

Listing status

415upvotes

Community score

Anurag S, Ankit Joshi, Krishna Guda and 5 others (Joined Sep 2026)

Founder

Compared against 5 alternatives

Market comparison

Launched on Launch Llama Sep 13, 2026 · #4 of 31 that day

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About

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.

Launch Llama's Take

Based on Launch Llama data as of November 2026

Harden has 415 upvotes, including the votes it received on Product Hunt. It has been listed on Launch Llama since September 2026. 1 Launch Llama member has upvoted it and it has no reviews yet.

Harden is a free, local security tool that checks AI coding agents' tool calls before they run, while AI-FW sits between AI agents and LLM backends to govern traffic to models.

Harden vs AI-FW

Harden is a free, local security tool that checks AI coding agents' tool calls before they run, while AI-FW sits between AI agents and LLM backends to govern traffic to models.

Harden vs AI-FW: side-by-side comparison
	Harden	AI-FW	AI Security Guard	BotGauge
What it does	For engineering teams: Harden secures AI coding agents by checking tool calls before execution, keeping your repo and outputs local while…	Helps platform and security teams govern AI agent traffic to	For AI teams: AI Security Guard blocks jailbreaks and prompt injection attacks in real time so your agents stay protected from malicious…	The trust layer for your agents
Pricing	Free	Freemium	Freemium	Not stated
Free plan	Yes, free to use	Yes, free plan	Yes, free plan	Not stated
Category	Security software	Artificial Intelligence	Artificial Intelligence	Developer Tools
Upvotes on Launch Llama	415	2	2	264
Listed on Launch Llama	September 2026	October 2026	June 2026	November 2026

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Key Features

Check coding-agent tool calls before they run
Control coding-agent actions before execution
Keep repository and tool output on your machine

Use Cases

Developers who want to secure AI coding agents before tool calls execute
Teams who need to prevent unauthorized agent actions in their codebase

Pricing

Free to install and use.

View Harden pricing →

FAQ

What is Harden?

Harden is an AI safety products company building guardrails for the dark software factory. Its Agentic Integrity Foundation (AIF) checks coding-agent actions before execution, while AI Scanner finds and fixes attack paths before release.

How does Harden work with vibe-coded apps?

Harden analyzes your app, automatically fixes security issues (hardcoded secrets, missing auth, uncontrolled egress), generates compliance artifacts (SBOM, audit logs), and deploys it with enterprise controls — all from a single CLI command or web interface.

What AI coding tools does Harden support?

Harden works with apps built using any AI coding tool including Cursor, Bolt, Lovable, Replit, and others. It is framework-agnostic and works with any web application.

Is Harden free?

The Harden CLI is open source and free forever. Enterprise features including fleet dashboard, approval gates, and compliance reporting are available with custom pricing.