Harden

by Harden

Harden is a local runtime-security layer for AI coding agents that intercepts agent tool calls before execution. It can allow, block, request human approval, or rewrite agent actions at the tool boundary, providing pre-execution governance for local coding-agent environments. It supports multiple coding-agent environments and runs entirely locally.

Developer Tools
Proprietary

Primary Use Cases

  • Securing AI coding agent tool execution
  • Enforcing least-privilege for autonomous agents
  • Human-in-the-loop approval gates for agent actions
  • Prompt injection defense at execution layer

✅ Strengths

  • Operates at tool execution boundary — catches issues before they execute
  • Fully local — no cloud dependency for security enforcement
  • Differentiates from model-level evaluation by governing actual execution
  • Supports multiple coding agent environments

⚠️ Limitations

  • Limited to local coding agent environments
  • Effectiveness depends on agent tool call surface coverage
  • Relatively new product — production maturity unverified at scale

Technical Specifications

Developer
Harden
Category
Developer Tools
Type
🔧 AI Tool
License
UNKNOWN

Trust & Privacy

Health Status
🟢 Active
Privacy Grade
🛡️ Grade A
Trains on User Data
✅ Does not train
Certifications
None listed

Ecosystem & Integrations

API Access
❌ No
Chrome Extension
❌ No
Mobile App
❌ No
Pricing Model
❓ Unknown

Pricing Breakdown

Unknown

Pricing not established from primary sources. Check official website.