How to intercept every Claude Code tool call before it runs

📰 Dev.to · SidClaw

Learn to intercept and control Claude Code tool calls before they run, ensuring safety and security in your development environment

intermediate Published 28 Apr 2026
Action Steps
  1. Identify the tool calls that need to be intercepted using Claude Code's documentation and logging features
  2. Configure an agent to intercept and evaluate each tool call before execution
  3. Implement a validation mechanism to check the tool call's parameters and intended actions
  4. Test the interception mechanism with various tool calls to ensure its effectiveness
  5. Refine the interception logic to allow or block tool calls based on specific conditions or rules
Who Needs to Know This

Developers and DevOps teams can benefit from this knowledge to prevent accidental data loss or unauthorized actions, and to improve overall system security and reliability

Key Insight

💡 Intercepting tool calls before they run can help prevent accidental data loss or unauthorized actions, and improve overall system security and reliability

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🚨 Intercept and control Claude Code tool calls to prevent data loss and unauthorized actions! 🚨

Key Takeaways

Learn to intercept and control Claude Code tool calls before they run, ensuring safety and security in your development environment

Full Article

Agents execute tool calls. Most of them are fine. Some of them delete staging databases, send emails...
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