AGENTS.md

@@ -211,6 +211,13 @@ records.each {
 - In TypeScript and TSX, block bodies for components, functions, callbacks,
   `if`, `try`, `catch`, `finally`, loops, and JSX nesting use 2 spaces per
   level.
+- In TypeScript and TSX, put the opening brace of `try`, `catch`, and
+  `finally` blocks on the next line at the same indentation as the keyword.
+- Do not indent the opening `{` one level deeper than `try`, `catch`, or
+  `finally`.
+- Indent the block body 2 spaces deeper than the keyword and opening brace.
+- Put the closing `}` on its own line at the same indentation as the keyword.
+- Do not write `try {`, `catch {`, or `finally {`.
 - In TypeScript and TSX, use 4-space continuation indentation for wrapped
   expressions, arguments, conditions, arrays, object literals, JSX
   attributes, and similar continuations.
@@ -578,6 +585,13 @@ and layout reuse, follow `frontend/AGENTS.md`.
   declarations, unless imports, exports, or file boundaries make that awkward.
 - In TSX, use 2-space block indentation and 4-space continuation
   indentation.
+- In TypeScript and TSX, put the opening brace of `try`, `catch`, and
+  `finally` blocks on the next line at the same indentation as the keyword.
+- Do not indent the opening `{` one level deeper than `try`, `catch`, or
+  `finally`.
+- Indent the block body 2 spaces deeper than the keyword and opening brace.
+- Put the closing `}` on its own line at the same indentation as the keyword.
+- Do not write `try {`, `catch {`, or `finally {`.
 - In TypeScript and TSX, convert every complete leading run of 8 spaces to a
   tab character.
 - A leading tab is exactly equivalent to 8 leading spaces.
@@ -628,6 +642,22 @@ and layout reuse, follow `frontend/AGENTS.md`.
   single physical line.
 - Always add braces around `if`, `else`, or `for` bodies when the body spans
   two or more physical lines, even if it is one statement.
+- `try` / `catch` / `finally` brace placement example:
+
+```ts
+try
+{
+  doWork ()
+}
+catch
+{
+  recover ()
+}
+finally
+{
+  cleanUp ()
+}
+```
 - Do not use a leading semicolon for expression statements such as
   `;([...]).forEach(...)`; rewrite the expression to avoid ASI hazards
   explicitly, for example with `void`.

backend/app/services/preview/http_fetcher.rb

@@ -12,9 +12,7 @@ module Preview
 
     Response = Data.define(:body, :content_type, :url)
 
-    def self.fetch(raw_url,
-                   max_bytes: DEFAULT_MAX_BYTES,
-                   redirects: MAX_REDIRECTS)
+    def self.fetch(raw_url, max_bytes: DEFAULT_MAX_BYTES, redirects: MAX_REDIRECTS)
       uri, addresses = UrlSafety.validate(raw_url)
       response = request(uri, addresses.first, max_bytes)
 
@@ -69,9 +67,7 @@ module Preview
       log_failure(:timeout, url: uri&.to_s || raw_url, error: e.class.name, message: e.message)
       raise FetchTimeout, e.message
     rescue SocketError, SystemCallError, OpenSSL::SSL::SSLError, EOFError => e
-      log_failure(:network_error,
-                  url: uri&.to_s || raw_url,
-                  error: e.class.name,
+      log_failure(:network_error, url: uri&.to_s || raw_url, error: e.class.name,
                   message: e.message)
       raise FetchFailed, e.message
     end

frontend/AGENTS.md

@@ -153,6 +153,13 @@ pass or the remaining failure is clearly blocked.
   closing `</div>)` forms when nearby code uses them.
 - Block bodies for components, functions, callbacks, `if`, `try`, `catch`,
   `finally`, loops, and JSX nesting use 2 spaces per level.
+- Put the opening brace of `try`, `catch`, and `finally` blocks on the next
+  line at the same indentation as the keyword.
+- Do not indent the opening `{` one level deeper than `try`, `catch`, or
+  `finally`.
+- Indent the block body 2 spaces deeper than the keyword and opening brace.
+- Put the closing `}` on its own line at the same indentation as the keyword.
+- Do not write `try {`, `catch {`, or `finally {`.
 - Wrapped expressions, arguments, ternary branches, method chains, and object
   pairs use 4-space continuation indentation relative to the owning
   expression. Do not confuse this with 2-space block indentation.
@@ -229,6 +236,23 @@ const Component = () => {
 }
 ```
 
+- `try` / `catch` / `finally` brace placement example:
+
+```ts
+try
+{
+  doWork ()
+}
+catch
+{
+  recover ()
+}
+finally
+{
+  cleanUp ()
+}
+```
+
 - Continuation indentation example:
 
 ```ts

frontend/src/components/TopNav.tsx

@@ -19,7 +19,7 @@ import type { FC, MouseEvent } from 'react'
 
 import type { Material, Menu, MenuVisibleItem, Tag, User } from '@/types'
 
-type Props = { user: User | null, }
+type Props = { user: User | null }
 
 
 export const menuOutline = (