Publish Zsxq Article Agent Skill

Publish Zsxq Article

Publish Markdown content to Zsxq (知识星球) article editor in Markdown mode, saving as draft for user review before publishing.

Prerequisites

• Browser automation MCP (either one):
• Chrome DevTools MCP (mcp__chrome-devtools__*)
• Playwright MCP (mcp__playwright__*)
• User logged into Zsxq (知识星球)

Browser MCP Tool Mapping

This skill works with both Chrome DevTools MCP and Playwright MCP:

| Action | Chrome DevTools MCP | Playwright MCP |

|--------|---------------------|----------------|

| Navigate | navigate_page | browser_navigate |

| Take snapshot | take_snapshot | browser_snapshot |

| Take screenshot | take_screenshot | browser_take_screenshot |

| Click element | click | browser_click |

| Fill text | fill | browser_type |

| Upload file | upload_file | browser_file_upload |

| Press key | press_key | browser_press_key |

| Evaluate JS | evaluate_script | browser_evaluate |

Priority: Default to Playwright MCP. Use Chrome DevTools MCP only when Playwright MCP is unavailable.

Detection: At runtime, prefer mcp__playwright__browser_navigate. Fall back to mcp__chrome-devtools__navigate_page only if Playwright tools are not available.

Key URLs

• Login page: https://wx.zsxq.com/login
• Article editor: https://wx.zsxq.com/article?groupId={groupId}

Group ID Resolution

The Zsxq group ID is required to navigate to the article editor (the groupId= URL parameter). Do not hardcode a default.

Before any navigation, resolve the group ID in this order:

• Skill argument — if the user invoked the skill with a group ID, use it.
• Environment variable — check ZSXQ_GROUP_ID (optional, for users who publish repeatedly to the same group).
• Prompt the user if neither is available:

> 请提供知识星球的 group ID（在星球 URL 里 groupId= 之后那串数字）。

Do not proceed to Step 2 (Navigate) without a resolved group ID.

Editor Interface

The Zsxq article editor has two modes:

Rich Text Mode (Default)

• Standard WYSIWYG editor with formatting toolbar
• Click "切换到 Markdown 模式 (内测)" to switch

Markdown Mode (Preferred)

• Uses Milkdown (ProseMirror-based WYSIWYG Markdown editor)
• Renders Markdown as formatted content (headings, bold, links, lists)
• Click "切换到富文本模式" to switch back

IMPORTANT: Content Insertion Method

The Milkdown editor requires content to be inserted via paste event, NOT direct fill:

• fill tool → Content treated as plain text, Markdown NOT rendered
• Paste event → Milkdown parses Markdown and renders it properly

Key Elements in Markdown Mode

• Title input: textbox "请在这里输入标题"
• Content area: ProseMirror editor (.ProseMirror class)
• Save button: "保存" (saves as draft)
• Preview button: "预览"
• Publish button: "发布" (DO NOT USE - always save as draft)
• Tags: "添加标签"

Main Workflow

Step 1: Prepare Content

Read the Markdown file and extract:

• Title: from YAML frontmatter title field, or H1 header # Title, or filename
• Content: Markdown body with the following stripped:
• YAML frontmatter (--- delimited block at the top)
• H1 title line (already used as the article title)
• HTML comments (<!-- ... -->)
• Horizontal rules (---) — Milkdown's paste handler misparses ---, causing subsequent headings and formatting to break (e.g., ## rendered as bold ** text instead of H2). Remove all --- lines before pasting.

# Read the markdown file
cat /path/to/article.md

Step 2: Navigate to Article Editor

# Navigate to the article editor with the resolved group ID (see Group ID Resolution above)
navigate_page: https://wx.zsxq.com/article?groupId={groupId}

If not logged in, the page will redirect to login. Prompt user to log in manually:

请先登录知识星球，登录完成后告诉我。
Login URL: https://wx.zsxq.com/login

Step 3: Switch to Markdown Mode

After page loads, check if already in Markdown mode by looking for "切换到富文本模式" text.

If in Rich Text mode (shows "切换到 Markdown 模式"):

• Click "切换到 Markdown 模式 (内测)"
• Confirm the dialog by clicking "确定"

// Check current mode
const switchBtn = document.querySelector('[class*="switch"]');
if (switchBtn && switchBtn.innerText.includes('切换到 Markdown')) {
  // Need to switch to Markdown mode
}

Step 4: Fill Title

• Find the title textbox with placeholder "请在这里输入标题"
• Click to focus
• Type the title

click: title textbox
fill: title textbox with article title

Step 5: Insert Markdown Content (via Paste Event)

CRITICAL: Do NOT use fill tool - it inserts plain text without Markdown rendering.

Instead, use evaluate_script to simulate a paste event:

// Simulate paste event to trigger Milkdown's Markdown parsing
() => {
  const markdownContent = `YOUR_MARKDOWN_CONTENT_HERE`;

  const editorEl = document.querySelector('.ProseMirror');
  if (!editorEl) return { error: 'Editor not found' };

  // Focus the editor
  editorEl.focus();

  // Create and dispatch paste event
  const clipboardData = new DataTransfer();
  clipboardData.setData('text/plain', markdownContent);

  const pasteEvent = new ClipboardEvent('paste', {
    bubbles: true,
    cancelable: true,
    clipboardData: clipboardData
  });

  editorEl.dispatchEvent(pasteEvent);

  return { success: true, charCount: markdownContent.length };
}

This method:

• Creates a ClipboardEvent with the Markdown content
• Dispatches it to the ProseMirror editor
• Milkdown's paste handler parses and renders the Markdown

Step 6: Add Tags (Optional)

• Click "添加标签"
• Enter tag text
• Confirm

Step 7: Save as Draft

IMPORTANT: Always save as draft, NEVER click "发布" (Publish)

• Click "保存" button to save as draft
• Verify save was successful

click: "保存" button

Step 8: Verify and Report

After saving:

• Check for success message or draft status
• Report to user:

草稿已保存。请在知识星球中预览并手动发布。
Draft saved. Please review in Zsxq and publish manually.

Complete Example Flow

User: "把 /path/to/my-article.md 发布到知识星球"

1. Read /path/to/my-article.md
   - Extract title from frontmatter or H1
   - Strip frontmatter, H1 title, HTML comments, and horizontal rules (`---`)
   - Get cleaned content

2. Navigate to https://wx.zsxq.com/article?groupId={resolved groupId}

3. Check if logged in
   - If not, prompt user to login

4. Switch to Markdown mode if needed
   - Click "切换到 Markdown 模式 (内测)"
   - Confirm dialog

5. Fill title
   - Click title input
   - Use `fill` tool to set title text

6. Insert content via paste event
   - Use `evaluate_script` to simulate paste event
   - This triggers Milkdown to parse and render Markdown

7. Save as draft
   - Click "保存"

8. Report success
   - "草稿已保存，请手动预览并发布"

Critical Rules

• NEVER click "发布" - Only save as draft using "保存"
• Always use Markdown mode - Switch if in Rich Text mode
• Check login status - Prompt user to login if needed
• Preserve original file - Never modify the source Markdown file
• Report completion - Tell user the draft is saved and needs manual review
• Resolve group ID first - Never hardcode a group ID. Resolve via skill argument, ZSXQ_GROUP_ID env var, or user prompt before any navigation (see Group ID Resolution)
• Prefer Playwright MCP - Default to Playwright MCP; only use Chrome DevTools MCP when Playwright is unavailable

Troubleshooting

Markdown Not Rendering (Shows Raw Syntax)

If you see raw Markdown syntax like bold or link instead of rendered formatting:

• Cause: Content was inserted using fill tool instead of paste event
• Solution: Use the evaluate_script method to simulate a paste event (see Step 5)

The Milkdown editor only parses Markdown when content is pasted, not when directly set.

Horizontal Rules (---) Break Formatting

If headings appear as bold text with ** markers, or formatting is garbled after a --- line:

• Cause: Milkdown's paste handler misparses --- (horizontal rule), corrupting subsequent Markdown elements
• Solution: Strip all --- lines from the content before pasting. The article can use headings for section separation instead.

Login Required

If page redirects or shows login prompt:

请先登录知识星球: https://wx.zsxq.com/login
登录完成后告诉我。

Content Too Long

Zsxq has a 100,000 character limit. If content exceeds:

文章内容超过100000字符限制，请考虑拆分文章。

Switch Mode Dialog

When switching to Markdown mode, a confirmation dialog appears:

• Message: "确定要切换编辑器？当前内容将不会同步至新编辑器"
• Click "确定" to confirm

Editor Not Loading

If editor elements are not visible:

• Wait for page to fully load
• Take a new snapshot
• If still not loading, refresh the page

Element Reference

| Element | Selector/Identifier | Description |

|---------|---------------------|-------------|

| Title input | textbox "请在这里输入标题" | Article title (max 60 chars) |

| Content area | .ProseMirror (Milkdown editor) | Markdown content (max 100000 chars) |

| Save button | "保存" | Save as draft |

| Preview button | "预览" | Preview article |

| Publish button | "发布" | DO NOT USE |

| Mode switch | "切换到 Markdown 模式" / "切换到富文本模式" | Toggle editor mode |

| Tags | "添加标签" | Add article tags |

| Word count | "正文字数：X /100000" | Character counter |

Image Upload

Image upload works in both Rich Text mode and Markdown mode using the upload_file tool.

Prerequisites

• Check image file size first: if > 500KB, compress to WebP or reduce quality
• Use ls -la /path/to/image.png to check file size

Image Upload Workflow

Image upload works with the image button in both editor modes:

• Take snapshot to find the image button ref/uid
• Rich Text mode: button "image"
• Markdown mode: generic description="Add image"

• Upload image

Chrome DevTools MCP:

   upload_file:
     uid: <image button uid>
     filePath: /path/to/image.png

Playwright MCP:

   browser_file_upload:
     ref: <image button ref>
     paths: ["/path/to/image.png"]

• Verify upload - take screenshot to confirm image appears in editor

Key Elements for Image Upload

| Mode | Image Button | Selector in Snapshot |

|------|-------------|---------------------|

| Rich Text | button "image" | button "image" |

| Markdown | Add image | generic description="Add image" |

Example Image Upload (Markdown Mode)

# 1. Take verbose snapshot to find image button
take_snapshot(verbose=true)

# 2. Find "Add image" button (e.g., uid=26_59)
# Look for: generic description="Add image"

# 3. Upload image directly to the button
upload_file:
  uid: 26_59  # (example uid for "Add image" button)
  filePath: /Users/user/Downloads/image.png

# 4. Verify with screenshot
take_screenshot

Example Image Upload (Rich Text Mode)

# 1. Take snapshot to find image button
take_snapshot

# 2. Find image button (e.g., uid=12_7)
# Look for: button "image"

# 3. Upload image to the button
upload_file:
  uid: 12_7  # (example uid for image button)
  filePath: /Users/user/Downloads/image.png

# 4. Verify with screenshot
take_screenshot

Image Size Limits

• Maximum recommended: 500KB per image
• For larger images, compress first using tools like ImageMagick or sips:

  # Check size
  ls -la /path/to/image.png

  # Compress if needed (macOS)
  sips -s format jpeg -s formatOptions 80 /path/to/image.png --out /path/to/image_compressed.jpg

Troubleshooting Image Upload

Image not appearing after upload:

• Take a fresh verbose snapshot to get correct uid for image button
• Verify the image file exists and is accessible
• Check the word count indicator - it should increase after successful upload

Finding the correct button uid:

• Use take_snapshot(verbose=true) to see element descriptions
• In Markdown mode, look for generic description="Add image"
• In Rich Text mode, look for button "image"

Technical Details

The Zsxq article editor uses two different editors:

Rich Text Mode (Quill)

• Quill: A modern WYSIWYG editor
• Image upload: Works via upload_file tool to button "image"
• Toolbar: Standard formatting buttons including image

Markdown Mode (Milkdown)

• Milkdown: A plugin-driven WYSIWYG markdown editor
• ProseMirror: The underlying rich-text editing framework
• Paste handling: Milkdown intercepts paste events and parses Markdown content
• Image upload: Works via upload_file tool to generic description="Add image"

This is why the user's workflow via md.bytenote.net works - pasting from any source triggers Milkdown's Markdown parser, resulting in properly rendered content.