From 500bb9f44f8ff12efa6f6f5fa35264c63db8cfc2 Mon Sep 17 00:00:00 2001
From: yaoweiprc <6896642+yaoweiprc@users.noreply.github.com>
Date: Thu, 9 Jul 2026 08:59:24 +0800
Subject: [PATCH] feat: add Prettier formatting hook for file edits

---
 .claude/hooks/prettier-format.js | 36 ++++++++++++++++++++++++++++++++
 .claude/settings.json            | 14 +++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 .claude/hooks/prettier-format.js

diff --git a/.claude/hooks/prettier-format.js b/.claude/hooks/prettier-format.js
new file mode 100644
index 0000000000..b81a95bfcf
--- /dev/null
+++ b/.claude/hooks/prettier-format.js
@@ -0,0 +1,36 @@
+#!/usr/bin/env node
+// PostToolUse hook (Write|Edit): formats the touched file with the repo's local Prettier.
+const fs = require('fs');
+const path = require('path');
+const { execFileSync } = require('child_process');
+
+let raw = '';
+try {
+  raw = fs.readFileSync(0, 'utf8');
+} catch {
+  process.exit(0);
+}
+
+let input;
+try {
+  input = JSON.parse(raw);
+} catch {
+  process.exit(0);
+}
+
+const filePath = input.tool_response?.filePath || input.tool_input?.file_path;
+if (!filePath || !fs.existsSync(filePath)) {
+  process.exit(0);
+}
+
+const repoRoot = path.join(__dirname, '..', '..');
+const prettierCli = path.join(repoRoot, 'node_modules', 'prettier', 'bin', 'prettier.cjs');
+
+try {
+  execFileSync(process.execPath, [prettierCli, '--ignore-unknown', '--write', filePath], {
+    cwd: repoRoot,
+    stdio: 'ignore',
+  });
+} catch {
+  // Ignore formatting failures (e.g. syntax errors) so the hook never blocks the agent.
+}
diff --git a/.claude/settings.json b/.claude/settings.json
index 93246cffc1..ec2873793f 100644
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -5,5 +5,19 @@
       "Edit(packages/insomnia/bin/yarn-standalone.js)",
       "Write(packages/insomnia/bin/yarn-standalone.js)"
     ]
+  },
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Write|Edit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "node .claude/hooks/prettier-format.js",
+            "timeout": 30
+          }
+        ]
+      }
+    ]
   }
 }