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Guard product

  • Guard overviewLocal security and control for AI agents and the tools they use.
  • FeaturesRuntime protection, policy routing, review, and evidence.

Explore Guard

  • Product previewWalk through Guard surfaces in read-only demo mode.
  • ComparisonCompare Guard with native controls and AI security vendors.

AI tools

  • All AI toolsEvery supported AI tool and how Guard applies policy to it.
  • Codex
  • Claude Code
  • Cursor
  • Gemini CLI
  • OpenCode
  • Hermes
  • OpenClaw
  • GitHub Copilot CLI
  • Antigravity
  • Kimi
  • Grok
  • Pi / Oh My Pi
  • Zcode

Extensions

  • All extensionsBrowse command and MCP coverage with owners and stated limits.
  • Command coverageShell command protection across clouds, databases, backups, and packages.
  • MCP server coverageSee how Guard maps risk state across MCP tools and servers.
  • Core safetyThe safety floor listings that ship with Guard.
  • Data and resilienceBackup and storage command protection.
  • Cloud and infrastructureAWS, Azure, GCP, Kubernetes, and more.

Security

  • AI security hubSecurity research, advisories, and agent safety coverage.
  • AI tool securitySecurity profiles for each supported coding agent.
  • Safe labsHands-on attack simulations with safe boundaries.
  • Redacted warningsReal blocked actions with sensitive details removed.
  • AdvisoriesCoordinated disclosure reports for AI tooling.
  • Active CVEsSearch active CVEs affecting AI tooling.

Learn

  • Security guidesPractical guides for securing AI agent workflows.
  • DocsInstall, configure, and operate Guard with confidence.
  • ResearchPublished security research, benchmarks, and methodology.

Community

  • ReleasesVersion history, shipped changes and upgrade notes.
  • ContributorsThe people and contributions behind HOL Guard.
  • AffiliatesShare Guard with your audience and earn from referrals.
  • SponsorKeep agent security open: sponsor a project, place a banner, or fund a security initiative.
PricingEnterpriseOpen AppInstall Guard
  1. Guard
  2. Security
  3. Harnesses

Harness guides

Protect the AI coding tools people actually use.

Each guide explains what the harness can do, what can go wrong, what HOL Guard blocks, and where the limits still are.

Install HOL GuardProtect a team

Harness setup guides

Protect the coding tools your team already uses without forcing everyone to become a security expert.

harness

Codex

Terminal-native coding agent with broad shell reach.

Open guide
harness

Claude Code

Agentic coding harness with MCP and file access.

Open guide
harness

OpenCode

Open-source agent harness for local coding loops.

Open guide
harness

GitHub Copilot CLI

IDE and CLI assistant across code and terminal flows.

Open guide
harness

Cursor

AI-first IDE with repo and terminal context.

Open guide
harness

Gemini CLI

Command-line agent workflow for local projects.

Open guide
harness

Hermes

Agent harness for skill and tool orchestration.

Open guide
harness

OpenClaw

Open agent workspace with pluggable tools.

Open guide
harness

Antigravity

Terminal agent harness with MCP and plugin support.

Open guide
harness

Kimi

Multimodal AI agent for coding and research tasks.

Open guide
harness

Grok

AI assistant for code, conversation, and real-time knowledge.

Open guide
harness

Pi / Oh My Pi

AI assistant and development environment with agent capabilities.

Open guide
harness

Zcode

Terminal-based AI coding agent with MCP server support.

Open guide
HOL Guard

Public security guidance for teams protecting AI harnesses, MCP servers, skills, prompts, and local tool execution.

Install Guard

AI Security

  • Prompt injection
  • MCP security
  • OWASP MCP mapping
  • Supply chain

Resources

  • Trust packet
  • Harness setup
  • Redacted warnings
  • Safe labs

Product

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