Markdown Autofix

An Obsidian plugin that detects Markdown syntax errors in the active note in real time and automatically fixes the safely fixable ones.

Features

• Real-time detection — scans the current Markdown document after you pause typing (800 ms debounce), on file open, and on plugin load.
• Auto-fix — errors with a unique safe fix are repaired automatically through an editor transaction (fully undoable with Ctrl/Cmd+Z).
• Error display (toggleable) — wavy underlines with hover tooltips in the editor, plus an error count in the status bar. Can be turned on/off from Settings or the command palette (开关错误实时显示).
• Error list panel — click the ribbon icon (left sidebar) or run 打开错误列表面板 to open a right-sidebar panel. Issues are grouped by type under collapsible headers: auto-fixable groups come first with a per-group 一键修复 batch button (plus a global 全部一键修复), review-only groups are tagged 需人工审核. Click any item to jump to its location; fixable items also have an individual 修复 button.
• Heading level shift — select a range of text and run 选区内标题提升一级 / 选区内标题降低一级 from the command palette to promote/demote every heading inside the selection by one level (H1/H6 boundaries are left untouched, code fences are ignored, single undo step).
• Safety guards — the line your cursor is on is never checked or modified; content inside code fences is ignored.

Detection rules (22, each individually toggleable, markdownlint-inspired)

Auto-fixed:

Display only (no unique safe fix): empty link [](), multiple H1 headings (MD025), heading level jumps (MD001), code fence without a language (MD040), bare URLs (MD034), emphasis used as a heading (MD036), inline HTML (MD033).

Installation

1. Run npm install && npm run build in this directory.
2. Copy main.js, manifest.json, and styles.css into <your-vault>/.obsidian/plugins/markdown-autofix/.
3. Enable "Markdown Autofix" in Settings → Community plugins.

Privacy

• No network access, no telemetry, no external services.
• The plugin only reads and modifies the currently active Markdown document in the editor. All edits go through normal editor transactions and are undoable.
• Settings (toggles) are stored locally in the plugin's data.json inside your vault.

中文说明

实时检测当前笔记的 Markdown 语法错误并自动修复（可撤销）。错误波浪线显示可在设置或命令面板中开关；光标所在行与代码围栏内的内容不会被检测或修改。