Finance & Commerce Agent Skills for Devin Desktop

Upgrade a Spree application — version-to-version migration paths (v4 → v5 is a major rewrite; v5.x → v5.y are simpler), Gemfile pinning…

Square integration. Manage Organizations, Users, Goals, Filters. Use when the user wants to interact with Square data.

Automate Square tasks via Rube MCP (Composio): payments, orders, invoices, locations.

Take a list of projects and their related documentation, and organize them into the SRED format for submission.

Simple P2P payments on Starknet. Generate QR codes, payment links, invoices, and transfer ETH/STRK/USDC. Like Lightning, but native.

Automate Starton tasks via Rube MCP (Composio).

Build automated billing systems for recurring payments, invoicing, subscription lifecycle, and dunning management.

Integrate PayPal payment processing with support for express checkout, subscriptions, and refund management.

Implement PCI DSS compliance requirements for secure handling of payment card data and payment systems.

ADVISORY skill — use when the user is **picking** a monetization model, not implementing one.

Use when implementing a complete end-to-end Stigg workflow that spans multiple skills — freemium, hybrid pricing, AI-credits monetization…

Use when operating subscriptions in Stigg — provision a customer onto a plan, preview a subscription's pricing, update an active…

Use when receiving, verifying, or handling webhook events from Stigg — subscription lifecycle (`subscription.created`…

Use when integrating Stigg's drop-in UI components — paywall / pricing table, customer portal, checkout, and the credit widgets (balance…

Full competitive breakdown of an e-commerce store — profile, traffic, products, tech stack, and actionable insights.

Automate Storerocket tasks via Rube MCP (Composio).

End-to-end strategic sourcing analysis skill with spend analysis, market assessment, and strategy development

Automate Stripe tasks via Rube MCP (Composio): customers, charges, subscriptions, invoices, products, refunds.

Generates and validates complex Stripe CLI fixture JSON files for multi-step payment flows and automated test data setup.

Stripe payments and subscription management skill for Lobbi member management system.

Audits Stripe refunds over a date range to surface anomalies (refund-rate spikes, missing reasons, duplicate refunds).