ai: add Claude Code hook to apply Prettier

Author: uhyo

.claude/hooks/format-files.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+# Format files with Prettier after write/edit
+
+file_path=$(jq -r '.tool_input.file_path' 2>/dev/null)
+
+if [ -z "$file_path" ] || [ "$file_path" = "null" ]; then
+  exit 0
+fi
+
+# Run Prettier, suppress errors, always exit 0
+npx prettier --write "$file_path" 2>/dev/null || true

.claude/settings.json

@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Write|Edit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "\"$CLAUDE_PROJECT_DIR\"/.claude/hooks/format-files.sh"
+          }
+        ]
+      }
+    ]
+  }
+}