Tooling: Add post-edit autoformat hook for Claude

Author: vdavid

.claude/hooks/post-edit-format.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# PostToolUse hook - auto-formats files after Claude edits them
+
+input=$(cat)
+file_path=$(echo "$input" | jq -r '.tool_input.file_path // empty')
+
+if [[ -z "$file_path" ]]; then exit 0; fi
+
+case "$file_path" in
+  *.ts|*.svelte|*.js|*.css)
+    cd "$(dirname "$0")/../.." && pnpm exec prettier --write "$file_path" 2>/dev/null
+    ;;
+  *.rs)
+    rustfmt "$file_path" 2>/dev/null
+    ;;
+  *.go)
+    gofmt -w "$file_path" 2>/dev/null
+    ;;
+esac
+exit 0

.claude/settings.json

@@ -15,6 +15,17 @@
           }
         ]
       }
+    ],
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write",
+        "hooks": [
+          {
+            "type": "command",
+            "command": ".claude/hooks/post-edit-format.sh"
+          }
+        ]
+      }
     ]
   }
 }