Claude Code hooks, when integrated with your Git workflow via MCP, can act as your first line of defense against code quality issues. By setting up a pre-commit or pre-push hook, you can ensure that Claude Code performs an initial analysis of your changes before they ever reach a pull request or the main branch. This proactive approach saves significant time by catching common errors, style violations, and potential security vulnerabilities early in the development cycle.
To implement this, you’ll typically use a tool like husky or manually configure your .git/hooks directory. For instance, using husky with Node.js projects, you could add a script to your package.json that invokes Claude Code. The MCP CLI can be instrumental here. Imagine having a command like mcp analyze --config .claude-code.yml . that you can call within your hook script.
Here’s a simplified example of a .husky/pre-commit file that leverages a hypothetical mcp CLI command:
#!/bin/sh
. "$(dirname "$0")/_/husky.sh"
echo "Running Claude Code analysis..."
# Replace 'mcp analyze' with your actual Claude Code CLI command
if ! mcp analyze --config .claude-code.yml --staged; then
echo "Claude Code analysis failed. Please fix the issues before committing."
exit 1
fi
echo "Claude Code analysis passed."
exit 0
This hook ensures that mcp analyze runs on staged files. If it returns a non-zero exit code (indicating issues found), the commit is blocked. This simple automation drastically improves code consistency and reduces the burden on manual code reviews.