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AI Hooks for Claude Code, Cursor, and Codex: Block Secrets Before Agents Can Use Them

TL;DR Instructions are suggestions, not controls : Prompts, AGENTS.md, and CLAUDE.md files only guide an agent, which can reinterpret or route around them.

  • GitGuardian AI Hooks enforce deterministic controls before prompts, tools, and outputs.
  • Hooks prevent agents from accessing privileged tokens or sensitive files.
  • Security teams can use AI Hooks to block agent decisions regardless of reasoning.

AI tools are aiding would-be spies

AI tools are now exacerbating a largely hidden problem that frontier AI companies have been contending with for years: the risk that employees will exploit their access to spy on their employers.

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