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Found 1,635 Skills
Use when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM, GDPR, CASL), handling webhooks, retry logic, or deciding transactional vs marketing.
Design HTTP APIs for Bun + Hono backends using Clean Architecture, Zod contracts in a shared package, OpenAPI generation from Zod, and thin controllers. Supports two selectable conventions — standard REST (resource paths with GET/POST/PATCH/PUT/DELETE) and POST-only action-based paths — picking one per project. Use when defining new endpoints, auditing or refactoring existing routes, shaping request/response contracts and envelopes, establishing API standards, or mapping typed application errors to HTTP status codes. Do not use for GraphQL, tRPC, non-Hono runtimes, or frontend-only concerns.
Expert-level Rust performance optimization guidelines for build profiles, allocation, synchronization, async/await, and I/O. This skill should be used when writing, reviewing, or optimizing Rust code for performance. Triggers on tasks involving slow Rust code, large binary size, long compile times, LTO configuration, release profile tuning, allocation reduction, clone avoidance, lock contention, BufReader/BufWriter, flamegraph analysis, async runtime issues, Tokio performance, spawn_blocking, parking_lot vs std sync, or any Rust performance investigation.
Accessibility (a11y) best practices for React components. Use when creating UI components, forms, interactive elements, or reviewing code for accessibility compliance.
Structured logging with proper levels, context, PII handling, centralized aggregation. Use for application logging, log management integration, distributed tracing, or encountering log bloat, PII exposure, missing context errors.
Best practices for Matplotlib data visualization, plotting, and creating publication-quality figures in Python
Configure multi-tenant organizations, manage members and invitations, define custom roles and permissions, set up teams, and implement RBAC using Better Auth's organization plugin. Use when users need org setup, team management, member roles, access control, or the Better Auth organization plugin.
Tailwind CSS styling guidelines for Mastra Playground UI. This skill should be used when writing, reviewing, or refactoring styling code in packages/playground-ui and packages/playground to ensure design system consistency. Triggers on tasks involving Tailwind classes, component styling, or design tokens.
React development guidelines with hooks, component patterns, state management, and performance optimization.
Robyn backend scaffolding and architecture guidance for projects using robyn-config. Use when creating or evolving Robyn services, choosing DDD vs MVC, choosing SQLAlchemy vs Tortoise, adding new entities/routes/repositories with robyn-config add, auditing Robyn backend quality, or authoring and improving skill markdown for Robyn engineering workflows.
REST API design patterns, OpenAPI specifications, versioning strategies, authentication, error handling, and security best practices. Use when designing APIs, creating endpoints, documenting APIs, or implementing backend services that expose HTTP APIs.
WHEN: User is writing HTML/templates with Tailwind CSS classes, styling components, configuring Tailwind themes, asking about Tailwind utilities or patterns, or working with any project that uses Tailwind CSS WHEN NOT: Non-Tailwind CSS questions, general HTML/CSS without Tailwind context, questions about other CSS frameworks (Bootstrap, etc.)