HOL GuardHOL
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Related Products
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About
HOL Guard is a local-first runtime security layer for AI agents that watches what an AI assistant is about to do and stops risky actions before they happen. It sits between the agent and the computer, evaluating supported tool calls and local artifacts for threats such as secret and credential exposure, destructive commands, prompt-injection-driven actions, malicious or changed packages, risky MCP configuration, and unsafe plugins, skills, hooks, and settings. Known threats can be blocked automatically, while ambiguous actions are paused for user approval so people remain in control. Guard runs entirely on the developer’s machine, works offline, and does not upload files, prompts, or passwords. Local checks typically complete in under 50 milliseconds and require no changes to existing code or routines. It supports coding agents including Claude Code, Cursor, Codex, Gemini CLI, OpenCode, Hermes, and OpenClaw, with tailored integrations that inspect actions before execution.
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About
Mountain Theory, the AI security company: every action an autonomous AI takes is checked before it runs, ALLOW, HOLD or BLOCK.
Mountain Theory controls what your AI agents can do. Every action is checked before it runs, then allowed, held for a person to approve, or blocked. When an agent tries to work around a block, the workaround is stopped too. When an agent drifts off the task it was given, that is caught. New bad behavior is stopped the day it appears, with no new rule needed.
It keeps personal data from leaving your environment and blocks instructions hidden in emails and documents. Rules are written in plain English, with no code. Every decision is logged for your auditor. It works with any AI you already use, in your environment or the cloud.
We publish our recorded tests, misses included.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Developers and engineering teams in need of a tool to prevent AI coding agents from exposing secrets, executing destructive commands, or performing other risky actions
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Audience
Enterprise security, risk and IT teams running autonomous AI agents
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$4.99 per month
Free Version
Supported
Free Trial
Not Supported
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PricingPaid plans use flat annual pricing. A 30-day proof of concept is available.
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationHOL
Founded: 2024
United States
hol.org/guard
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Company InformationMountain Theory
Founded: 2024
United States
mountaintheory.ai
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Alternatives |
AlternativesNo Alternatives
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Categories |
Categories |
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Integrations
Antigravity CLI
Supported
Claude Code
Supported
Cursor
Supported
Gemini CLI
Supported
GitHub
Supported
GitHub Copilot CLI
Supported
Grok
Supported
Hermes Agent
Supported
Kimi
Supported
Model Context Protocol (MCP)
Supported
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Integrations
Antigravity CLI
Not Supported
Claude Code
Not Supported
Cursor
Not Supported
Gemini CLI
Not Supported
GitHub
Not Supported
GitHub Copilot CLI
Not Supported
Grok
Not Supported
Hermes Agent
Not Supported
Kimi
Not Supported
Model Context Protocol (MCP)
Not Supported
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