Database
Database management and queries
skill-system-postgres
by arthur0824hao
"Postgres-backed observability and policy store for the skill system. Provides tables for policy profiles (effect allowlists), skill execution runs, and step-level events. Use when setting up the skill system database or querying execution history."
rails-service-patterns
by ag0os
Rails service object patterns and business logic organization. Automatically invoked when working with service objects, extracting business logic, implementing command/query patterns, or organizing app/services. Triggers on "service object", "service", "business logic", "workflow", "orchestration", "command pattern", "query object", "form object", "interactor", "result object".
posthog-analytics
by petekp
Product analytics expert using PostHog MCP. Triggers on requests to understand user behavior, surface insights, create dashboards, analyze funnels, track metrics, set up experiments, or answer questions about product performance. Use when working with PostHog data, discussing analytics strategy, investigating user journeys, retention, conversion, feature adoption, or when asked to help understand what's happening in the product.
sequential-thinking
by linehaul-ai
Use when complex problems require systematic step-by-step reasoning with ability to revise thoughts, branch into alternative approaches, or dynamically adjust scope. Ideal for multi-stage analysis, design planning, problem decomposition, or tasks with initially unclear scope.
lovable
by 10K-Digital
Integration skill for Lovable.dev projects. Activates when working with: - Lovable.dev projects with GitHub sync - Supabase Edge Functions that need deployment - Database migrations for Lovable Cloud - Projects with supabase/ directory structure - Any mention of "Lovable", "deploy edge function", "apply migration" Provides exact Lovable prompts for backend operations that can't be done via GitHub alone.
python-data-state
by ahgraber
Use when designing data ownership, validation boundaries, consistency models, or configuration strategy in Python. Also use when encountering unclear ownership across modules, shared mutable state leaking between layers, validation gaps at ingress, cross-module transactional coupling, or config drift between environments.
python-types-contracts
by ahgraber
Use when defining or evolving public interfaces, schema boundaries, or pydantic usage in Python. Also use when annotations are missing on public APIs, pydantic models appear everywhere instead of at trust boundaries, contract changes lack migration guidance, or Any/object types are overused across module boundaries.
laravel-developer
by paulund
Use when building or modifying Laravel applications, including routes, controllers, models, migrations, jobs, and tests.
faion-backend-developer
by faionfaion
"Backend orchestrator: coordinates systems (Go, Rust, DB) and enterprise (Java, C#, PHP, Ruby)."
pgtool
by ThilinaTLM
PostgreSQL database exploration and debugging. Use when user asks to explore database schemas, tables, columns, or run queries. Requires a .pgtool.json file in the project directory.
grepai-storage-postgres
by yoanbernabeu
Configure PostgreSQL with pgvector for GrepAI. Use this skill for team environments and large codebases.
sql-cli
by Interstellar-code
Token-efficient MySQL/PostgreSQL operations using mycli and native CLI tools (Windows/Mac/Linux compatible). Replaces Artisan Tinker for database queries with 87% token savings.
grepai-config-reference
by yoanbernabeu
Complete configuration reference for GrepAI. Use this skill when you need to understand all available configuration options.
rails-ai:models
by zerobearing2
Use when designing Rails models - ActiveRecord patterns, validations, callbacks, scopes, associations, concerns, query objects, form objects
drupal-tooling
by Omedia
Drupal development tooling skill for DDEV local environments and Drush command-line operations (Drupal 8-11+). Use when working with Docker-based development environments, Drush commands, deployment workflows, or site management tasks.
postgresql
by jgamaraalv
"PostgreSQL 16+ reference for writing queries, designing schemas, managing indexes, and optimizing performance. Use when: (1) writing SQL queries (SELECT, INSERT, UPDATE, DELETE, CTEs, window functions, subqueries), (2) designing or altering table schemas (CREATE TABLE, constraints, sequences, data types), (3) choosing or creating indexes (B-tree, GIN, GiST, BRIN, partial, expression), (4) managing transactions and isolation levels (BEGIN/COMMIT, savepoints, MVCC), (5) working with JSONB data and jsonpath, (6) analyzing query performance with EXPLAIN ANALYZE, or (7) using the psql CLI."
typescript-conventions
by jgamaraalv
"TypeScript coding conventions for strict, type-safe projects. Use when: (1) writing or reviewing TypeScript code, (2) choosing between any and unknown, (3) structuring imports with verbatimModuleSyntax, (4) naming functions, booleans, queries, and commands, (5) handling errors with guard clauses and early returns, or (6) avoiding common anti-patterns like primitive obsession, magic strings, and premature abstraction."
rss-digest
by odysseus0
"Agentic RSS digest using the feed CLI. Fetch, triage, and summarize RSS feeds to surface high-signal posts. Use when: (1) reading RSS feeds or catching up on news, (2) user asks for a digest, roundup, or summary of recent posts, (3) user asks what's new or interesting today, (4) user mentions feed, RSS, or blogs."
backend
by Tyler-R-Kendrick
Use when making backend architecture decisions — choosing API styles, database types, caching strategies, authentication mechanisms, and server-side design patterns for scalable, maintainable systems. USE FOR: backend architecture decisions, choosing API styles, choosing database types, server-side design patterns, backend system design DO NOT USE FOR: specific pattern details (use sub-skills: data-modeling, api-design, caching, authentication), frontend architecture (use dev/frontend), infrastructure (use iac)
docker-in-docker
by Tyler-R-Kendrick
Use when configuring Docker-in-Docker inside a dev container or Codespace. Covers the DinD feature, Docker Compose, building images, and running containers from within the dev environment. USE FOR: running Docker inside dev containers, DinD feature configuration, building images in Codespaces, Compose inside containers DO NOT USE FOR: general devcontainer.json schema (use devcontainer), sidecar services via Compose (use multi-container-workspaces), production Docker builds (use iac/docker)
architecture-monolith
by KentoShimizu
"Modular monolith architecture workflow for strong domain boundaries, transactional consistency, and operational simplicity in a single deployable. Use when teams need fast delivery and coherent data consistency with controlled complexity; do not use when independent runtime scaling boundaries are mandatory."
arc-diagrams
by arach
Create architecture diagrams using Arc's JSON format. Use when asked to "create an architecture diagram", "draw a system diagram", "visualize the architecture", or "make a diagram of".
db-migration-strategy
by KentoShimizu
"Schema migration strategy workflow for sequencing changes, compatibility windows, and rollback-safe rollout in live systems. Use when schema evolution impacts running services; do not use for static greenfield schemas without deployment constraints."
db-query-optimization
by KentoShimizu
"Query optimization workflow for reducing latency and resource cost through plan-aware rewrites and access-path improvements. Use when hot-path query behavior is the bottleneck; do not use for conceptual schema redesign without workload evidence."