Database
Database management and queries
contributing-to-z-schema
by zaggino
Guides contributors through the z-schema codebase, PR workflow, and common development tasks. Use when the user wants to contribute to z-schema, add a new feature or keyword, add an error code, add a format validator, modify options, write tests, run the test suite, fix a failing test, understand the validation pipeline, navigate the source code architecture, or submit a pull request. Also use when someone mentions contributing, PRs, the z-schema source code, or the JSON Schema Test Suite integration.
handling-validation-errors
by zaggino
Inspects, filters, and maps z-schema validation errors for application use. Use when the user needs to handle validation errors, walk nested inner errors from anyOf/oneOf/not combinators, map error codes to user-friendly messages, filter errors with includeErrors or excludeErrors, build form-field error mappers, use reportPathAsArray, interpret SchemaErrorDetail fields like code/path/keyword/inner, or debug why validation failed.
mysql
by sanjay3290
"Execute read-only SQL queries against multiple MySQL databases. Use when: (1) querying MySQL databases, (2) exploring database schemas/tables, (3) running SELECT queries for data analysis, (4) checking database contents. Supports multiple database connections with descriptions for intelligent auto-selection. Blocks all write operations (INSERT, UPDATE, DELETE, DROP, etc.) for safety."
architecture-paradigm-functional-core
by athola
'Functional Core, Imperative Shell: isolate deterministic logic from
architecture-paradigm-hexagonal
by athola
'Decouple domain logic from infrastructure using Hexagonal (Ports & Adapters)
architecture-paradigm-service-based
by athola
'Coarse-grained service architecture for deployment independence without
architecture-paradigm-space-based
by athola
'Data-grid architecture for high-traffic stateful workloads with linear
architecture-paradigm-event-driven
by athola
'Asynchronous event-based communication to decouple producers/consumers
architecture-paradigm-modular-monolith
by athola
'Single deployable with enforced module boundaries for team autonomy
atlas-best-practices
by NeverSight
Patterns for Atlas database schema management covering HCL/SQL schema definitions, versioned and declarative migrations, linting analyzers, testing, and project configuration. Use when working with atlas.hcl, .hcl schema files, Atlas CLI commands, or database migrations.
nuxt-content
by nuxt-content
Use when working with Nuxt Content v3 - provides collections (local/remote/API sources), queryCollection API, MDC rendering, database configuration, NuxtStudio integration, hooks, i18n patterns, and LLMs integration
MCP Architecture Expert
by frankxai
Design and implement Model Context Protocol servers for standardized AI-to-data integration with resources, tools, prompts, and security best practices
hexagonal-architecture
by lexler
Applies hexagonal (ports & adapters) architecture. Use when designing application structure, separating domain from infrastructure, creating testable boundaries, or when user mentions ports, adapters, hexagonal, or clean architecture.
ring:dev-chaos-testing
by LerianStudio
Gate 7 of development cycle - ensures chaos tests exist using Toxiproxy to verify graceful degradation under connection loss, latency, and partitions.
ring:dev-integration-testing
by LerianStudio
Gate 6 of development cycle - ensures integration tests pass for all external dependency interactions using real containers via testcontainers.
ring:infrastructure-cost-estimation
by LerianStudio
Orchestrates infrastructure cost estimation with tier-based or custom TPS sizing. Offers pre-configured tiers (Starter/Growth/Business/Enterprise) or custom TPS input. Skill discovers components, asks shared/dedicated for EACH, selects environment(s), reads actual Helm chart configs, then dispatches agent for accurate calculations.
epic-permissions
by epicweb-dev
Guide on RBAC system and permissions for Epic Stack
epic-auth
by epicweb-dev
Guide on authentication, sessions, OAuth, 2FA, and passkeys for Epic Stack
sanity-best-practices
by sanity-io
Comprehensive Sanity development best practices covering integration guides (Next.js, Nuxt, Astro, Remix, SvelteKit, Hydrogen), GROQ performance, schema design, Visual Editing, images, Portable Text, page builders, Studio configuration, TypeGen, localization, and migrations. Use this skill when building, reviewing, or optimizing Sanity applications.
react-best-practices
by NeverSight
Provides React patterns for hooks, effects, refs, and component design. Covers escape hatches, anti-patterns, and correct effect usage. Must use when reading or writing React components (.tsx, .jsx files with React imports).
performance-optimization
by ThibautBaissac
Identifies and fixes Rails performance issues including N+1 queries, slow queries, and memory problems. Use when optimizing queries, fixing N+1 issues, improving response times, or when user mentions performance, slow, optimization, or Bullet gem.
atlas-best-practices
by NeverSight
Patterns for Atlas database schema management covering HCL/SQL schema definitions, versioned and declarative migrations, linting analyzers, testing, and project configuration. Use when working with atlas.hcl, .hcl schema files, Atlas CLI commands, or database migrations.
writing-server-code
by bitwarden
Bitwarden server code conventions for C# and .NET. Use when working in the server repo, creating commands, queries, services, or API endpoints.
memory-intake
by nhadaututtheky
Structured memory creation workflow. Converts messy notes, conversations, and unstructured thoughts into well-typed, tagged, confidence-scored memories. Uses 1-question-at-a-time clarification to avoid cognitive overload.