Payment

Send and receive HTTP webhook notifications for event-driven automation. Use when triggering external workflows on invoice events, receiving callbacks from payment systems, integrating with third-party services, or building event-driven invoice pipelines.

Send messages and notifications to Slack channels using webhooks and APIs. Use when posting invoice alerts to team channels, sending payment notifications, automating status updates, or integrating invoice workflows with Slack.

Send automated emails with attachments using SMTP protocols. Use when sending invoice notifications, dispatching payment reminders, emailing reports to stakeholders, or automating email-based workflows.

Validate data fields against schemas, rules, and constraints. Use when validating invoice data integrity, checking required fields, enforcing business rules, verifying data types and formats, or ensuring data quality before processing.

Creates professional monthly invoice summaries for clients by analyzing Git commits and time sheet notes. Combines technical development work with business activities into clear, value-focused bullet points suitable for client invoicing. Use when creating monthly billing summaries, preparing client invoices, summarizing development work for billing periods, translating technical Git commits into client-friendly descriptions, or combining Git activity with time sheet notes for complete project summaries.

Secret detection patterns and scanning workflow. Auto-loaded by security-reviewer agent for all security audits. Contains regex patterns for 25+ secret types (AWS, Google, GitHub, Stripe, etc.) and CLI scanning commands.

Comprehensive Stripe API expert with access to 3,253 official documentation files covering all payment processing, billing, subscriptions, webhooks, Connect, Terminal, Radar, Identity, Tax, Climate, and integrations. Invoke when user mentions Stripe, payments, subscriptions, billing, payment processing, checkout, invoices, or any payment-related features.

UX research and analysis for identifying gaps, mapping customer journeys, benchmarking against top companies (OpenAI, Apple, Stripe, Notion), and measuring UX success using frameworks like JTBD, Kano Model, Double Diamond, and Service Blueprints.

Expert payment integration specialist mastering payment gateway integration, PCI compliance, and financial transaction processing. Specializes in secure payment flows, multi-currency support, and fraud prevention with focus on reliability, compliance, and seamless user experience.

Comprehensive Whop platform expert with access to 212 official documentation files covering memberships, payments, products, courses, experiences, forums, webhooks, and app development. Invoke when user mentions Whop, digital products, memberships, course platforms, or community monetization.

Expert on Shelby Protocol smart contracts on Aptos blockchain. Helps with blob metadata, micropayment channels, auditing system, storage commitments, placement group assignments, Move modules, and on-chain state management. Triggers on keywords Shelby smart contract, Shelby Move, blob metadata, micropayment channel, Shelby auditing, placement group assignment, storage commitment, Aptos contract.

Expert in Shelby Protocol TypeScript SDK for decentralized storage on Aptos. Helps with blob uploads/downloads, session management, micropayment channels, multipart uploads, and SDK integration for Node.js and browser environments. Triggers on keywords ShelbyNodeClient, ShelbyClient, @shelby-protocol/sdk, Shelby SDK, decentralized blob storage, Shelby upload, Shelby download, Shelby session.

Implement payment integrations with SePay (Vietnamese payment gateway with VietQR, bank transfers, cards) and Polar (global SaaS monetization platform with subscriptions, usage-based billing, automated benefits). Use when integrating payment processing, implementing checkout flows, managing subscriptions, handling webhooks, processing bank transfers, generating QR codes, automating benefit delivery, or building billing systems. Supports authentication (API keys, OAuth2), product management, customer portals, tax compliance (Polar as MoR), and comprehensive SDK integrations (Node.js, PHP, Python, Go, Laravel, Next.js).

Crypto wallet assistant for generating payment links for supported tokens (USDC, USDT, vUSD, ICP, CKUSDC) across multiple networks (Solana, Ethereum, Base, BSC, Vly, ICP), X402 redirect links for accessing payment-protected content, and providing access to the vly.money wallet interface. Use when users request to send/transfer crypto, mention 402 errors or payment-required content, or explicitly ask to access vly.money wallet.

Enterprise-grade compliance architecture for SOC 2, HIPAA, GDPR, PCI-DSS. Provides compliance checklists, security controls, audit guidance, and regulatory requirements for serverless and cloud architectures. Activates for compliance, HIPAA, SOC2, SOC 2, GDPR, PCI-DSS, PCI DSS, regulatory, healthcare data, payment card, data protection, audit, security standards, regulated industry, BAA, business associate agreement, DPIA, data protection impact assessment.

Run and interact with lnd Lightning Network daemon in Docker. Use for Lightning development, testing payment channels on regtest, managing lnd containers, and calling lnd RPC endpoints (getinfo, connect, open/close channels, pay/receive). Supports bitcoind, btcd, and neutrino backends.

Stripe payment integration patterns. Use when implementing payment flows, handling webhooks, or working with subscriptions. Routes to existing patterns and provides evidence templates for payment testing.

Payment card security, SOC2 compliance, and financial services regulatory requirements

Run and interact with eclair Lightning Network daemon in Docker. Use for Lightning development, testing payment channels on regtest, managing eclair containers, and calling eclair API endpoints (getinfo, connect, open/close channels, pay/receive).

Use when implementing auth, file uploads, payments, or external APIs. Applies STRIDE framework systematically. Triggers: "authentication", "file upload", "payment", "multi-tenant", "external API". If thinking "I know security" - use this anyway.