Honor autoClosePairsEnabled in the square-bracket auto-close paths

CHANGELOG.md

@@ -69,6 +69,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   line-break, programmatic, and undo/redo edits still widen ordered-list runs
   when downstream display numbers can change.
 
+### Fixed
+- The Obsidian-style `[[` node-bracket completion now honors
+  `ListStyle.autoClosePairsEnabled`, matching the single-`[` auto-close path.
+  Previously an embedder that disabled bracket auto-closing (to edit plain
+  Markdown source without inserted pairs) still got `[[` silently expanded to
+  `[[]]`.
+
 ## [0.12.0] - 2026-08-10
 
 ### Added

Sources/MarkdownEngine/Input/MarkdownListHandler.swift

@@ -140,8 +140,11 @@ struct MarkdownLists {
             }
         }
 
-        // Autocomplete Obsidian-style node brackets and single square brackets
+        // Autocomplete Obsidian-style node brackets and single square brackets.
+        // Both behaviors are bracket auto-closing, so both honor `autoClosePairsEnabled` —
+        // embedders that edit plain Markdown source expect `[` to insert exactly `[`.
         if replacementString == "[" {
+            guard autoClosePairsEnabled else { return true }
             let nsText = textView.string as NSString
             let insertionLocation = affectedCharRange.location
             if insertionLocation > 0 {

Tests/MarkdownEngineTests/MarkdownListHandlerBracketAutoCloseTests.swift

@@ -0,0 +1,79 @@
+//
+//  MarkdownListHandlerBracketAutoCloseTests.swift
+//  MarkdownEngine
+//
+//  Both the single-`[` auto-close and the Obsidian-style `[[` node-bracket
+//  completion are bracket auto-closing, so both should honor
+//  `ListStyle.autoClosePairsEnabled` — an embedder editing plain Markdown
+//  source (autoClosePairsEnabled = false) expects `[` to insert exactly `[`.
+//
+
+import AppKit
+import SwiftUI
+import Testing
+@testable import MarkdownEngine
+
+@MainActor
+@Suite("MarkdownListHandler bracket auto-close")
+struct MarkdownListHandlerBracketAutoCloseTests {
+
+    private func makeEditor(text: String, configuration: MarkdownEditorConfiguration = .default) -> NativeTextView {
+        _ = NSApplication.shared
+        let textView = NativeTextView(frame: NSRect(x: 0, y: 0, width: 800, height: 600))
+        textView.isEditable = true
+        textView.configuration = configuration
+        let coordinator = NativeTextViewCoordinator(
+            text: .constant(text),
+            fontName: "SF Pro Text",
+            fontSize: 14,
+            isWikiLinkActive: .constant(false),
+            onLinkClick: nil,
+            onInlineSelectionChange: nil
+        )
+        coordinator.textView = textView
+        textView.delegate = coordinator
+        textView.string = text
+        coordinator.lastSyncedText = text
+        coordinator.lastComputedStorage = text
+        coordinator.previousDisplayLength = (text as NSString).length
+        return textView
+    }
+
+    @Test func singleBracketAutoClosesByDefault() {
+        let tv = makeEditor(text: "")
+        tv.setSelectedRange(NSRange(location: 0, length: 0))
+
+        tv.insertText("[", replacementRange: NSRange(location: 0, length: 0))
+
+        #expect(tv.string == "[]")
+    }
+
+    @Test func obsidianDoubleBracketCompletesByDefault() {
+        let tv = makeEditor(text: "[")
+        tv.setSelectedRange(NSRange(location: 1, length: 0))
+
+        tv.insertText("[", replacementRange: NSRange(location: 1, length: 0))
+
+        #expect(tv.string == "[[]]")
+    }
+
+    @Test func singleBracketInsertsExactlyOneCharWhenAutoCloseDisabled() {
+        let config = MarkdownEditorConfiguration(lists: ListStyle(autoClosePairsEnabled: false))
+        let tv = makeEditor(text: "", configuration: config)
+        tv.setSelectedRange(NSRange(location: 0, length: 0))
+
+        tv.insertText("[", replacementRange: NSRange(location: 0, length: 0))
+
+        #expect(tv.string == "[")
+    }
+
+    @Test func obsidianDoubleBracketDoesNotAutoCompleteWhenAutoCloseDisabled() {
+        let config = MarkdownEditorConfiguration(lists: ListStyle(autoClosePairsEnabled: false))
+        let tv = makeEditor(text: "[", configuration: config)
+        tv.setSelectedRange(NSRange(location: 1, length: 0))
+
+        tv.insertText("[", replacementRange: NSRange(location: 1, length: 0))
+
+        #expect(tv.string == "[[")
+    }
+}