Taming Claude Code with Pre-Tool Hooks
The author shares how they used Claude Code's PreToolUse hooks to gain control over Claude's enthusiastic execution of commands like cd, git commit, and git push in their production codebase.
Why it matters
Demonstrates how to use a powerful but underutilized feature of Claude Code to maintain control over an AI assistant's actions in a production environment.
Key Points
- 1Claude Code can automatically run commands that mess up the terminal's working directory or attempt destructive git operations
- 2PreToolUse hooks can intercept and block tool calls before execution
- 3The author set up hooks to block standalone cd commands and git commit/push/reset operations
Details
The author was building a URL shortener with analytics using Claude Code as an AI pair programmer. They found that while Claude was helpful, it would sometimes run commands like cd, git commit, and git push without the author's review, which could be problematic in a production codebase. To regain control, the author leveraged Claude Code's PreToolUse hooks feature to intercept and block certain commands before execution. They configured hooks to block standalone cd commands and disallow git commit, push, and destructive reset operations. This allowed the author to maintain control over what gets committed and pushed to the production codebase.
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