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Found 1,174 Skills
Generate database migrations for a Medusa module
Migrate from package:provider to Riverpod; ChangeNotifierProvider, ProxyProvider to ref.watch, context.watch to ref.watch, ConsumerWidget, incremental migration, family and autoDispose. Use when the user is migrating from Provider to Riverpod, or asks about Provider vs Riverpod, or how to replace ProxyProvider/ChangeNotifierProvider.
Use this skill whenever the user wants to set up, configure, or refactor TypeORM within a NestJS TypeScript project, including data sources, entities, migrations, repositories, relations, and transactional patterns.
Analyze and transform messy, prototype, overgrown, slop-prone, or hard-to-maintain software repositories into maintainable product-shaped codebases while preserving existing product behavior. Use when the user asks to antislop a codebase, clean up a messy repo, run a maintainability migration, write a refactor plan, modernize structure, improve TypeScript/type boundaries, harden tests, reduce large files, clean architecture, coordinate subagent-driven refactors, or produce a final migration audit/report/microsite. Do not use for broader production-readiness specialties such as security audits, observability/logging programs, compliance hardening, SRE/runbook work, or reliability engineering unless the user explicitly scopes those as part of the maintainability refactor.
TanStack Query v5 server state management for React. Covers query/mutation patterns, v4-to-v5 migration (object syntax, gcTime, isPending, keepPreviousData), optimistic updates via useMutationState, SSR/hydration with HydrationBoundary, infinite queries, offline/PWA support, error boundaries with throwOnError, and React 19 Suspense integration. Use when building data fetching, fixing migration errors, debugging hydration mismatches, implementing caching strategies, or configuring mutations.
Use after migrating a route or completing a migration phase to verify correctness. Also use when the build breaks, tests fail, or you suspect migration regressions.
Plan a migration onto MotherDuck. Use when moving from Snowflake, Redshift, PostgreSQL, dbt-heavy stacks, or lakehouse tooling and the key decisions are target pattern, cutover slices, validation, rollback, and native-versus-DuckLake posture.
Validate database integrity, test migrations forward and backward, verify schema constraints, manage seed data, detect migration drift, and identify query performance issues. Covers PostgreSQL, MySQL, MongoDB with Prisma, TypeORM, Drizzle, and SQLAlchemy, plus Testcontainers test databases. Use when: "database test," "migration test," "migration rollback," "rollback test," "data integrity," "SQL test," "schema validation," "seed data," "query performance," "Testcontainers." Not for: synthetic data generation/masking at scale — use test-data-management; Docker/IaC test-environment provisioning — use test-environments; SQL injection — use security-testing. Related: test-data-management, test-environments, security-testing, ci-cd-integration.
Build backend AI with Vercel AI SDK v6 stable. Covers Output API (replaces generateObject/streamObject), speech synthesis, transcription, embeddings, MCP tools with security guidance. Includes v4→v5 migration and 15 error solutions with workarounds. Use when: implementing AI SDK v5/v6, migrating versions, troubleshooting AI_APICallError, Workers startup issues, Output API errors, Gemini caching issues, Anthropic tool errors, MCP tools, or stream resumption failures.
Complete guide to Next.js 16 features, breaking changes, and migration from v15. Use when building new Next.js projects or upgrading existing ones to leverage Turbopack, Cache Components, and latest performance optimizations.
Design or review load-bearing architecture: authority, ownership, public, persisted, or cross-boundary contracts, dependency boundaries, recovery, architecture guards, migration, rewrite, deprecation, deletion, and drift. Use when work establishes, changes, or evaluates these decisions or controls; skip focused work that only consumes them as supplied inputs and preserves them.
Create audience-aware standalone application release notes and actionable migration guides from version-control changes, contracts, schemas, configuration, tests, and deployment evidence. Use for release-visible behavior, breaking changes, upgrades, deprecations, rollout steps, or rollback guidance.