Use when asking about email deliverability, compliance (CAN-SPAM, GDPR, CASL), transactional email design patterns, list management, testing safely, or general email best practices — provider-agnostic knowledge with Postmark-specific guidance.

Semantic folder index for codebase navigation. Commands: /toondex (create), /redex (update). IMPORTANT: If you see "PROPOSE_REINDEX" in your context (injected by SessionStart hook), when the user sends their next message, briefly ask if they want you to run /redex first or if you should continue answering their question. "Oh, I see you've discovered my meticulously organized archive."

Update the Go version in go.mod (and related config files) to the latest stable release. Fetches the current latest version from the web, updates all relevant files, runs go mod tidy, and commits.

Diagnose and fix Groq API errors with real error codes and solutions. Use when encountering Groq errors, debugging failed requests, or troubleshooting integration issues. Trigger with phrases like "groq error", "fix groq", "groq not working", "debug groq", "groq 429".

Aggregate and centralize performance metrics from applications, systems, databases, caches, and services. Use when consolidating monitoring data from multiple sources. Trigger with phrases like "aggregate metrics", "centralize monitoring", or "collect performance data".

Master end-to-end testing with Playwright and Cypress to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E tests, debugging flaky tests, or establishing testing standards.

Search, list, view, and update existing GitHub issues. Primary use case is CVE tracking and security vulnerability issue management. Used by the ark-security-patcher agent. For drafting NEW issues with research and task breakdowns, use the "issue-creation" skill instead.

Comprehensive AI prompt engineering safety review and improvement prompt. Analyzes prompts for safety, bias, security vulnerabilities, and effectiveness while providing detailed improvement recommendations with extensive frameworks, testing methodologies, and educational content.

Comprehensive guide for BlazeMeter API Monitoring, including test creation, configuration, scripting, integrations, notifications, and management. Use when working with API Monitoring tests for (1) Creating and configuring API tests, (2) Writing custom scripts (Initial, Pre-request, Post-response), (3) Integrating with third-party services (Slack, PagerDuty, Datadog, etc.), (4) Managing teams, buckets, and RBAC, (5) Configuring notifications and sharing results, (6) Using test data (CSV, Data Entities), (7) Advanced features (GraphQL, SOAP, file uploads, environments), or any other API Monitoring tasks.

Generate and maintain OpenAPI 3.1 specifications from code, design-first specs, and validation patterns. Use when creating API documentation, generating SDKs, or ensuring API contract compliance.

Creates penetration test deliverables for executive and technical audiences, including prioritized findings and remediation plans. Use when drafting, structuring, or finalizing pen test reports from collected evidence.

Set up a complete RevenueCat project from scratch — creates apps, products, entitlements, offerings, and packages in the correct order. Use when the user wants to create a new RevenueCat project, configure in-app purchases, set up subscriptions or monetization, or bootstrap IAP infrastructure for iOS, Android, or Web.

Developing component and utility styles in the Punkt design system (@oslokommune/punkt-css). Covers creating, modifying, and maintaining SCSS in /packages/css/src/scss/. Use when working on Punkt CSS source code.

Implement GDPR-compliant data handling with consent management, data subject rights, and privacy by design. Use when building systems that process EU personal data, implementing privacy controls, or conducting GDPR compliance reviews.

Diagnose and fix Exa API errors by HTTP code and error tag. Use when encountering Exa errors, debugging failed requests, or troubleshooting integration issues. Trigger with phrases like "exa error", "fix exa", "exa not working", "debug exa", "exa 429", "exa 401".

Implement GitOps workflows with ArgoCD and Flux for automated, declarative Kubernetes deployments with continuous reconciliation. Use when implementing GitOps practices, automating Kubernetes deployments, or setting up declarative infrastructure management.

Model Context Protocol (MCP) server patterns for building integrations with Claude Code. Triggers on: mcp server, model context protocol, tool handler, mcp resource, mcp tool.

Implement GitOps workflows with ArgoCD and Flux for automated, declarative Kubernetes deployments with continuous reconciliation. Use when implementing GitOps practices, automating Kubernetes deployments, or setting up declarative infrastructure management.

Use the mcporter CLI to list, configure, auth, and call MCP servers/tools directly (HTTP or stdio), including ad-hoc servers, config edits, CLI/type generation, and MCP-backed skills that need a durable command path.