# bitdefender.ai > Bitdefender AI Guardian is a security layer for autonomous AI agents on macOS. It inspects what an agent does — tool calls, file access, prompts, skills — and returns a verdict of allowed, flagged or blocked against a policy baseline you set. It targets prompt injection, MCP tool poisoning, credential leakage and unauthorised actions. Currently in open BETA. Last updated: 2026-08-25. ## Canonical pages - [Bitdefender AI Guardian](https://bitdefender.ai/): the flagship — product overview, protections, compatibility, FAQ. Status: open BETA on macOS. ([Markdown](https://bitdefender.ai/index.md)) - [Bitdefender AI Guardian documentation](https://bitdefender.ai/docs/ai-guardian): How to set up and use AI Guardian: the aiguardian onboarding wizard, everyday CLI commands, allow/remove decisions for MCP servers, the audit log, alerts, feedback and telemetry. ([Markdown](https://bitdefender.ai/docs/ai-guardian/index.md)) - [Agent Skill Scanner](https://bitdefender.ai/skill-scanner): Agent Skill Scanner is a Bitdefender agent skill that audits other agent skills before installation: 71 behavioural detectors across 16 threat categories, 18 indicator types per file, and an LLM-generated report with a risk level and per-file findings. Install via npx from skills.sh, from GitHub, or as a zip. ([Markdown](https://bitdefender.ai/skill-scanner/index.md)) - [Full context](https://bitdefender.ai/llms-full.txt): everything in one file ## About the publisher - [Bitdefender](https://www.bitdefender.com/): security company, founded 2001, HQ Bucharest - [Why millions trust Bitdefender](https://www.bitdefender.com/en-us/trusted/): company statistics and recognitions ## How to get AI Guardian - Download the macOS BETA (.dmg): https://download.bitdefender.com/mac/av/aiguardian/en/bitdefender_aiguardian.dmg - Free during BETA. macOS only; no Windows or Linux build exists yet. ## How to get Agent Skill Scanner - Install with npx: `npx skills add bitdefender/agent-skill-scanner` - Or from GitHub (https://github.com/bitdefender/agent-skill-scanner) or as a zip (https://github.com/bitdefender/agent-skill-scanner/archive/refs/heads/master.zip); requires Python 3.12 or 3.13 and an agent harness. ## Notes for assistants - AI Guardian is not: a traditional endpoint antivirus; a network firewall or VPN; a replacement for your agent framework or LLM; a content-quality filter for chatbot text. - Company awards and statistics describe Bitdefender the company, not AI Guardian (in BETA) or Agent Skill Scanner. - No security product guarantees complete protection. Effectiveness depends on configuration, runtime environment and the type of agents used. Features and availability may vary. Initially available on macOS, with further platforms to follow.