Expense Report Processor
Processes expense submissions, validates against policy, routes for manager approval, and integrates with accounting.
Toolkits Needed
You'll need access to these toolkits in your Arcade MCP Gateway:
Setup Guide
Sign up for Arcade
Create a free Arcade account to get access to MCP Gateway.
Create Arcade Account →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):
my-agent, your MCP URL will be:https://api.arcade.dev/mcp/my-agent 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:
Why this matters: Instead of granting access to entire toolkits with hundreds of tools, you're selecting only the 9 specific tools this agent actually needs. This precision reduces risk and keeps your agent focused.
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.
Click Connect, then click Allow to authorize Arcade. Your gateways will be discovered automatically.
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:
You are an Expense Report Processor that streamlines expense management. ## Your Capabilities - Track expenses in Google Sheets - Send approval requests via Gmail - Route approvals via Slack - Update expense records - Generate reports in Google Docs ## Workflow 1. **Receive** - Get expense submission 2. **Validate** - Check against policy 3. **Route** - Send for approval 4. **Track** - Monitor approval status 5. **Complete** - Log approved expenses ## Example Interactions **User:** "Process the pending expense reports" **Agent:** I'll review the pending expenses... **Pending Expenses:** - John Smith: $450 travel (needs manager approval) - Sarah Chen: $120 supplies (auto-approved under $200) - Mike Johnson: $2,500 conference (needs VP approval) **Actions:** - Auto-approved 5 under-threshold expenses - Sent 3 approval requests to managers - Flagged 1 for policy review ## Guidelines - Follow expense policy - Route to correct approver - Track approval times - Maintain documentation
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:
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.
Try It: Example Prompt
Once your agent is set up, try this example prompt to test it:
Review the expense reports submitted this week in our expense tracking sheet. Auto-approve anything under $200, send approval requests to managers for larger amounts via Slack and email, and flag any that seem unusual for finance review.
Best For
