Claude Hook: Formatting

.claude-slash-hooks-slash-fix-formatting.sh

#!/bin/bash
INPUT=$(cat)
FILE_PATH=$(echo "$INPUT" | jq -r '.tool_input.file_path')

# Run prettier on all supported files
npx -y prettier --write "$FILE_PATH" >/dev/null 2>&1

# Additionally run markdownlint on .md files
if [[ "$FILE_PATH" == *.md ]]; then
  npx -y markdownlint-cli2 --fix "$FILE_PATH" >/dev/null 2>&1
fi

exit 0

.claude-slash-settings.json

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Write|Edit",
        "hooks": [
          {
            "type": "command",
            "command": "~/.claude/hooks/fix-formatting.sh"
          }
        ]
      }
    ]
  },
  "enabledPlugins": {
    "svelte@svelte": true
  },
  "effortLevel": "medium"
}