Publish to Discord

Publish news content to Discord via the Discord MCP server.

When to Use

• Publishing regular news digests
• Alerting about breaking news
• Sharing formatted news summaries
• Keywords: publish, post, discord, news, digest, breaking

Prerequisites

• DISCORD_MCP_URL environment variable set (or use default)
• Target channel exists (default: ai-news)
• Content formatted for Discord (markdown)

Input Schema

{
  "content": "string - Formatted content to publish",
  "content_type": "string - 'digest' or 'breaking_alert'",
  "article": {
    "title": "string - Article title (for breaking alerts)",
    "url": "string - Article URL",
    "source": "string - News source",
    "category": "string - Article category",
    "ai_summary": "string - AI-generated summary"
  },
  "channel_name": "string - Target channel (default: ai-news)"
}

Actions

Step 1: Validate Configuration

Check that Discord MCP is accessible. If not:

• Log warning
• Return published=false
• Skip remaining steps

Step 2: Route by Content Type

For digest:

1. Split message if > 1900 characters (Discord limit is 2000)
2. Post each chunk as separate message
3. Return message ID of first chunk

For breaking_alert:

1. Build Discord embed with red color (0xED4245)
2. Include @here mention for notification
3. Structure embed with article details

Step 3: Post Content

For digest (plain text with chunking):

# For each chunk:
mcp_tool: discord-mcp-server/send_message_to_channel_name
params:
  channel_name: $channel_name
  content: $chunk_content

For breaking_alert (rich embed):

mcp_tool: discord-mcp-server/send_message_to_channel_name
params:
  channel_name: $channel_name
  content: "@here **Breaking AI News**"
  embed:
    title: "BREAKING: $article.title"
    description: $article.ai_summary
    url: $article.url
    color: 15158332  # Red
    fields:
      - name: "Source"
        value: $article.source
        inline: true
      - name: "Category"
        value: $article.category
        inline: true
    footer:
      text: "AI News Monitor - Breaking Alert"
    timestamp: $current_timestamp

Step 4: Handle Chunking (Digest only)

If content exceeds 1900 characters:

1. Split by paragraphs (double newline)
2. If paragraph too long, split by lines
3. Post chunks sequentially with small delay
4. Maintain logical breaks

Chunking algorithm:

max_chunk_size = 1900
chunks = []
current_chunk = ""

for paragraph in content.split("\n\n"):
    if len(current_chunk) + len(paragraph) + 2 <= max_chunk_size:
        current_chunk += paragraph + "\n\n"
    else:
        if current_chunk:
            chunks.append(current_chunk.strip())
        current_chunk = paragraph + "\n\n"

if current_chunk:
    chunks.append(current_chunk.strip())

Output Schema

{
  "published": "boolean - Whether publish succeeded",
  "message_id": "string - Discord message ID (first chunk for digests)",
  "chunks_sent": "number - Number of message chunks sent (digest only)",
  "channel": "string - Channel where content was posted",
  "error": "string - Error message if failed"
}

Success Criteria

• Content posted to Discord
• Message ID returned for tracking
• Breaking alerts trigger @here notifications
• Long content properly chunked

Failure Handling

Error Type	Handling Strategy
MCP server unavailable	Retry with backoff
Channel not found	Log error, return published=false
Rate limited	Wait and retry
Content too long	Auto-chunk and retry

Idempotency

This operation is NOT idempotent:

• Same content posted multiple times creates multiple messages
• Use breaking news claim system to prevent duplicate alerts
• Digest deduplication handled by workflow scheduling

Examples

Example 1: News Digest

Input:

{
  "content": "# AI News Digest - Jan 11, 2025\n\n## Top Stories\n\n1. **OpenAI announces GPT-5**...\n\n2. **Google releases Gemini 2.0**...",
  "content_type": "digest",
  "channel_name": "ai-news"
}

MCP Tool Call:

mcp_tool: discord-mcp-server/send_message_to_channel_name
params:
  channel_name: ai-news
  content: "# AI News Digest - Jan 11, 2025\n\n## Top Stories\n\n1. **OpenAI announces GPT-5**..."

Output:

{
  "published": true,
  "message_id": "1234567890",
  "chunks_sent": 1,
  "channel": "ai-news"
}

Example 2: Breaking News Alert

Input:

{
  "content_type": "breaking_alert",
  "article": {
    "title": "Major AI Breakthrough: AGI Achieved",
    "url": "https://example.com/agi-breakthrough",
    "source": "TechCrunch",
    "category": "research",
    "ai_summary": "Researchers announce successful demonstration of artificial general intelligence..."
  },
  "channel_name": "ai-news"
}

MCP Tool Call:

mcp_tool: discord-mcp-server/send_message_to_channel_name
params:
  channel_name: ai-news
  content: "@here **Breaking AI News**"
  embed:
    title: "BREAKING: Major AI Breakthrough: AGI Achieved"
    description: "Researchers announce successful demonstration of artificial general intelligence..."
    url: "https://example.com/agi-breakthrough"
    color: 15158332
    fields:
      - name: "Source"
        value: "TechCrunch"
        inline: true
      - name: "Category"
        value: "Research"
        inline: true
    footer:
      text: "AI News Monitor - Breaking Alert"

Output:

{
  "published": true,
  "message_id": "9876543210",
  "channel": "ai-news"
}

Related Skills

• send-discord-notification - Generic notifications
• compose-digest - Create digest content
• detect-breaking-news - Identify breaking news

Changelog

Version	Date	Changes
2.0.0	2025-01-11	Migrated to Discord MCP server from webhooks
1.0.0	2025-01-09	Initial version with webhook support