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Marketing & Content

AI Newsletter Curator

Curates newsletter content by scanning RSS feeds, monitoring industry news, and pulling highlights from your saved articles.

Toolkits Needed

You'll need access to these toolkits in your Arcade MCP Gateway:

Gmail
GoogleDocs
Firecrawl

Setup Guide

1

Sign up for Arcade

Create a free Arcade account to get access to MCP Gateway.

Create Arcade Account →
2

Create a new MCP Gateway

Navigate to MCP Gateway page in Arcade, then click Create MCP Gateway.

Provide a slug that becomes your MCP URL (this is what LangSmith Fleet will discover automatically):

Example: If you choose slug my-agent, your MCP URL will be:
https://api.arcade.dev/mcp/my-agent
3

Select the specific tools you need

Arcade MCP Gateway gives you fine-grained control over exactly which tools your agent can access. Select these specific tools from the toolkits:

Gmail.ListEmails
Gmail.SendEmail
Gmail.ReplyToEmail
GoogleDocs.CreateDocumentFromText
GoogleDocs.GetDocumentAsDocmd
GoogleDocs.EditDocument
GoogleDocs.SearchDocuments
GoogleDocs.GetDocumentById
GoogleDocs.CreateBlankDocument
Firecrawl.ScrapeUrl
Choose your tools in Arcade MCP Gateway

Why this matters: Instead of granting access to entire toolkits with hundreds of tools, you're selecting only the 10 specific tools this agent actually needs. This precision reduces risk and keeps your agent focused.

4

Open LangSmith Fleet and connect Arcade

Arcade is available as a native integration in LangSmith Fleet. Open LangSmith, navigate to Integrations in the left sidebar, then select Arcade under the Apps section. Click Connect to link your Arcade account.

Open LangSmith Fleet →

Select Arcade from the Apps sidebar in LangSmith Fleet and click Connect

Click Connect, then click Allow to authorize Arcade. Your gateways will be discovered automatically.

5

Create your agent

Create a new agent in LangSmith Fleet using the system prompt below and link your Arcade integration.

View the system prompt

Copy this system prompt and paste it into the "System Prompt" field when creating your agent in LangSmith Fleet:

Agent System Prompt
You are an AI Newsletter Curator that helps gather and organize content for newsletters.

## Your Capabilities
- Scrape content from URLs
- Search and read emails in Gmail
- Create and edit documents in Google Docs
- Send emails via Gmail

## Workflow
1. **Gather Sources** - Collect URLs and content from user
2. **Scrape Content** - Read articles from provided links
3. **Organize** - Structure content into newsletter sections
4. **Draft** - Create newsletter draft in Google Docs
5. **Send** - Email the final newsletter when approved

## Example Interactions
**User:** "Here are 5 articles for this week's newsletter: [URLs]"
**Agent:** I'll read each article and create a newsletter draft. Give me a moment to scrape the content...

Done! I've created a draft with:
- Executive summary
- Article highlights
- Key takeaways

The draft is in Google Docs. Want me to send it as an email?

## Guidelines
- Maintain consistent newsletter structure
- Extract key insights from each source
- Keep summaries concise and actionable
- Include proper attribution
6

Add Arcade tools to your agent

In your agent, click Add tools and select the Arcade tools from your connected gateway. Your gateway exposes only the specific tools you configured:

Gmail.ListEmails
Gmail.SendEmail
Gmail.ReplyToEmail
GoogleDocs.CreateDocumentFromText
GoogleDocs.GetDocumentAsDocmd
GoogleDocs.EditDocument
GoogleDocs.SearchDocuments
GoogleDocs.GetDocumentById
GoogleDocs.CreateBlankDocument
Firecrawl.ScrapeUrl
Selecting Arcade tools in LangSmith Fleet
7

Start using your agent!

That's it! Your agent is now connected to Arcade's tools. Start chatting with your agent to test it out.

You're all set!

Try It: Example Prompt

Once your agent is set up, try this example prompt to test it:

Example Query
Curate this week's newsletter from these articles:
- https://techcrunch.com/article1
- https://wired.com/article2

Create a draft in Google Docs with summaries of each, then email it to [email protected]

Best For

Newsletter CreatorsContent MarketersThought Leaders

Get access to Arcade, and start building now.