Implement Command Query Responsibility Segregation for scalable architectures. Use when separating read and write models, optimizing query performance, or building event-sourced systems.

Automate Supabase database queries, table management, project administration, storage, edge functions, and SQL execution via Rube MCP (Composio). Always search tools first for current schemas.

Automate Google Sheets operations (read, write, format, filter, manage spreadsheets) via Rube MCP (Composio). Read/write data, manage tabs, apply formatting, and search rows programmatically.

Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep watching open PRs so fresh review feedback is surfaced promptly. Use when the user asks Codex to monitor a PR, watch CI, handle review comments, or keep an eye on failures and feedback on an open PR.

Deploying Expo apps to iOS App Store, Android Play Store, web hosting, and API routes

Optionally checks, then commits code to the current or a new feature branch.

Comprehensive guidance for integrating Jupiter APIs (Swap, Lend, Perps, Trigger, Recurring, Tokens, Price, Portfolio, Prediction Markets, Send, Studio, Lock, Routing). Use for endpoint selection, integration flows, error handling, and production hardening.

Ghost Security - Secrets and credentials scanner. Scans codebase for leaked API keys, tokens, passwords, and sensitive data. Detects hardcoded secrets and generates findings with severity and remediation guidance. Use when the user asks to check for leaked secrets, scan for credentials, find hardcoded API keys or passwords, detect exposed .env values, or audit code for sensitive data exposure.

Adding integral action to MPC for offset-free tension tracking.

Build a production-grade Guidewire Cloud API client that survives the request-side failures — 409 checksum conflicts on PATCH/PUT, 429 quota throttling, offsetToken pagination drift, retry-unsafe POSTs, and unstructured error responses. Use when designing an HTTP client wrapper around PolicyCenter, ClaimCenter, or BillingCenter REST endpoints. Trigger with "guidewire client", "guidewire sdk", "checksum 409", "guidewire pagination", "guidewire rate limit", "Retry-After".

Debug hard-to-diagnose Firecrawl issues with systematic isolation and evidence collection. Use when standard troubleshooting fails, investigating why scrapes return empty content, crawl jobs hang, or webhooks don't fire. Trigger with phrases like "firecrawl hard bug", "firecrawl mystery error", "firecrawl impossible to debug", "firecrawl deep debug", "firecrawl not scraping".

Add focused regression coverage for Cerebro review findings, bugs, and security edge cases.

Advanced Evernote SDK patterns and best practices. Use when implementing complex note operations, batch processing, search queries, or optimizing SDK usage. Trigger with phrases like "evernote sdk patterns", "evernote best practices", "evernote advanced", "evernote batch operations".

Execute Documenso production deployment checklist and rollback procedures. Use when deploying Documenso integrations to production, preparing for launch, or implementing go-live procedures. Trigger with phrases like "documenso production", "deploy documenso", "documenso go-live", "documenso launch checklist".

Apply Clay security best practices for API keys, webhook secrets, and data access control. Use when securing Clay integrations, rotating API keys, auditing access, or implementing webhook authentication. Trigger with phrases like "clay security", "clay secrets", "secure clay", "clay API key security", "clay webhook security".

This skill ensures all code follows security best practices and identifies potential vulnerabilities. Use when implementing authentication or authorization, handling user input or file uploads, or creating new API endpoints.

Master automated billing systems including recurring billing, invoice generation, dunning management, proration, and tax calculation.

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

Implements an accepted incremental brownfield migration from native iOS or Android to React Native or Expo using @callstack/react-native-brownfield. Use after the brownfield path has been selected, when setting up the integration, packaging XCFramework or AAR artifacts, or adding React Native surfaces to native hosts.

Create and manage production Grafana dashboards for real-time visualization of system and application metrics. Use when building monitoring dashboards, visualizing metrics, or creating operational observability interfaces.