Database
Database management and queries
mongodb-query-and-index-optimize
by romiluz13
MongoDB query optimization and indexing strategies. Use when writing queries, creating indexes, building aggregation pipelines, or debugging slow operations. Triggers on "slow query", "create index", "optimize query", "aggregation pipeline", "explain output", "COLLSCAN", "ESR rule", "compound index", "partial index", "TTL index", "text search", "geospatial", "$indexStats", "profiler".
mongodb-search
by romiluz13
MongoDB Search engine architecture, query composition, and search operations. Use when creating Atlas Search indexes, writing $search or $searchMeta pipelines, choosing analyzers, tuning lexical relevance, handling Search alerts/metrics, deploying Search in Community, or orchestrating hybrid search with $rankFusion/$scoreFusion. Triggers on "Atlas Search", "$search", "$searchMeta", "autocomplete", "synonyms", "facet", "compound", "search score", "highlight", "storedSource", "returnStoredSource", "returnScope", "mongot", "searchCoordinator", "Search Max Fields Indexed", "nGram fields", "$rankFusion", "$scoreFusion", and "hybrid search".
RAG Implementer
by daffy0208
Implement retrieval-augmented generation systems. Use when building knowledge-intensive applications, document search, Q&A systems, or need to ground LLM responses in external data. Covers embedding strategy, vector stores, retrieval pipelines, and evaluation.
Knowledge Graph Builder
by daffy0208
Design and build knowledge graphs. Use when modeling complex relationships, building semantic search, or creating knowledge bases. Covers schema design, entity relationships, and graph database selection.
Manifest Generator
by daffy0208
Auto-generate capability manifests from skill/MCP descriptions using Codex-powered semantic analysis and structured extraction.
Performance Optimizer
by daffy0208
Optimize application performance and scalability. Use when investigating slow applications, scaling bottlenecks, or improving response times. Covers profiling, caching, database optimization, and frontend performance.
Archon Manager
by daffy0208
Master Archon MCP for strategic project management, task tracking, and knowledge base operations. The strategic layer (WHAT/WHEN) that coordinates with Skills (HOW). Use when managing projects, tracking tasks, querying knowledge bases, or implementing the Archon+Skills two-layer architecture.
migrating-bitnami-to-bitnami-legacy
by stakpak
This rule book helps you migrate Bitnami Helm charts and container images from the bitnami repository to the bitnamilegacy repository. This migration is necessary due to Bitnami's transition, effective August 28th, 2025, where existing images will be moved to the legacy repo
taiwan-mrt-fareastern-empty-train
by pigfoot
Find empty trains (空車) at 亞東醫院 MRT station. Use when user asks about empty trains, 空車, or uncrowded trains at 亞東醫院/Far Eastern Hospital station on the Bannan line.
agent-evaluator
by arisng
Deterministic custom subagent selection helper. Use when you need a reproducible, auditable decision on which custom subagents to activate for a user query (runs scripts/agent_evaluator.py).
agent-mongo
by shhac
Read-only MongoDB CLI for AI agents. Use when: - Exploring MongoDB databases, collections, schemas, or indexes - Querying documents (find, get by ID, count, sample, distinct, aggregate) - Managing MongoDB connections or credentials - Checking database or collection statistics Triggers: "mongodb", "mongo query", "mongo find", "mongo schema", "mongo collection", "mongo database", "mongo connection", "mongo aggregate", "query mongodb", "mongo stats"
cap
by arisng
Comprehensive guidance for implementing distributed transactions and event bus patterns using DotNetCore.CAP library. Use when working with CAP for microservices event-driven architecture, message publishing/subscribing, outbox pattern implementation, and integration with message queues like RabbitMQ, Kafka, Azure Service Bus, and databases like SQL Server, PostgreSQL, MongoDB.
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.
Managing Side Effects Functionally
by whatiskadudoing
Master functional approaches to side effects including IO types, effect isolation, idempotent operations, and quarantining impure code - essential patterns for reliable TypeScript applications
migrating-to-swift-concurrency
by kylehughes
Provides the complete Swift Concurrency Migration Guide. Use when migrating to Swift 6, resolving data-race safety errors, understanding Sendable and actor isolation, or incrementally adopting async/await.
Python Backend Architecture Review
by rknall
"Comprehensive design architecture review for Python backend applications. Use this skill when users ask you to review, analyze, or provide feedback on backend architecture designs, system design documents, or Python application architecture. Covers scalability, security, performance, database design, API design, microservices patterns, deployment architecture, and best practices."
boring-stack
by boringstackoverflow
Bootstraps new web app projects with a tech stack you can understand. Runs a 4-question intake to pick a stack (Go binary + SQLite + Litestream + Caddy + systemd + a $5 VPS by default; Postgres / managed platforms when the project doesn't fit), writes STACK.md as the source-of-truth decision record plus a CLAUDE.md anchor, scaffolds new projects from scratch (init), generates production-ready deploy files from bundled templates, and walks an 8-step post-deploy verification (TLS / Litestream / restore drill). Loads when starting a new web app, scaffolding deploy infrastructure, picking a tech stack, or making bootstrap-time architecture decisions for a side project, indie product, internal tool, hobby project, or solo-founder context.
tool-function-schema-designer
by patricio0312rev
Designs robust function/tool calling schemas for LLMs with JSON schemas, validation strategies, typed interfaces, and example calls. Use when implementing "function calling", "tool use", "LLM tools", or "agent actions".
rest-to-graphql-migrator
by patricio0312rev
Migrates REST APIs to GraphQL incrementally with schema stitching, REST datasources, and gradual endpoint migration. Use when users request "migrate to GraphQL", "REST to GraphQL", "GraphQL wrapper", or "API modernization".
rag-pipeline-builder
by patricio0312rev
Designs retrieval-augmented generation pipelines for document-based AI assistants. Includes chunking strategies, metadata schemas, retrieval algorithms, reranking, and evaluation plans. Use when building "RAG systems", "document search", "semantic search", or "knowledge bases".
adr-writer
by patricio0312rev
Creates Architecture Decision Records documenting key technical decisions with context, alternatives considered, tradeoffs, consequences, and decision owners. Use when documenting "architecture decisions", "technical choices", "design decisions", or "ADRs".
api-versioning-deprecation-planner
by patricio0312rev
Plans safe API evolution with versioning strategies, client migration guides, deprecation timelines, and backward compatibility considerations. Use for "API versioning", "deprecation planning", "API evolution", or "breaking changes".
migration-planner
by patricio0312rev
Builds phased data and system migrations using feature flags, dual writes, backfills, and validation. Includes rollback plans and risk mitigation. Use for "data migration", "system migration", "database migration", or "platform migration".
tech-debt-prioritizer
by patricio0312rev
Scores and prioritizes technical debt by impact, risk, and effort. Provides ranked backlog with ROI analysis and quarterly paydown recommendations. Use for "tech debt", "technical debt management", "code quality", or "refactoring priorities".