harness · market
Harness
Put raw intelligence to work.
Skills, MCP servers, prompts, assistants and connectors. Every listing shows its author, version and the permissions it needs.
On the shelves20,989
- MCP servers18,838
- Skills1,282
- Assistants651
- Prompts218
0 items
Databases- affaan-m 275kDatabase ReviewerPostgreSQL database specialist for query optimization, schema design, security, and performance. Incorporates Supabase best practices.AssistantSonnetDatabasesSecurity
t8y2 25kdbxQuery databases from AI agents using connections configured in DBX.MCPNode.jsDatabases
addyosmani 103kPerformance OptimizationOptimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.SkillNo codeDatabasesFrontend
kubeshark 12kmcpReal-time Kubernetes network traffic visibility and API analysis for HTTP, gRPC, Redis, Kafka, DNS.MCPMCP bundleDatabasesDevOps- addyosmani 103kDeprecation and MigrationManages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when migrating a database schema in production, such as renaming or dropping a column without downtime (expand/contract). Use when deciding whether to maintain or sunset existing code.SkillNo codeDatabasesLegal
- msitarzewski 158kDatabase OptimizerExpert database specialist focusing on schema design, query optimization, indexing strategies, and performance tuning for PostgreSQL, MySQL, and modern databases like Supabase and PlanetScale.AssistantDatabases
- affaan-m 275kJava reviewerExpert Java code reviewer for Spring Boot and Quarkus projects. Automatically detects the framework and applies the appropriate review rules. Covers layered architecture, JPA/Panache, MongoDB, security, and concurrency.AssistantSonnetDatabasesSecurityBackend
bytebase 3.6kDBHubToken-efficient database MCP server for PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLiteMCPNode.jsDatabases
alirezarezvani 28kAWS Solution ArchitectDesign AWS architectures for startups using serverless patterns and IaC templates. Use when asked to design serverless architecture, create CloudFormation templates, optimize AWS costs, set up CI/CD pipelines, or migrate to AWS. Covers Lambda, API Gateway, DynamoDB, ECS, Aurora, and cost optimization.SkillPythonDatabasesCloudDevOps- msitarzewski 158kDrupal Performance EngineerExpert Drupal 10/11 performance engineer specializing in Core Web Vitals, render and dynamic page caching, BigPipe, cache tags and contexts, database query and Views optimization, CSS/JS aggregation, responsive images and lazy loading, CDN integration, and opcache/PHP-FPM tuning for fast, audit-passing sitesAssistantDatabasesFrontendImages
anthropics 180kXLSX creation, editing, and analysisUse this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like "the xlsx in my downloads") — and wants something done to it or produced from it. Also trigger for cleaning or restructuring messy tabular data files (malformed rows, misplaced headers, junk data) into proper spreadsheets. The deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.SkillPythonDatabasesFilesOffice
supabase.com 2.9kSupabaseMCP server for interacting with the Supabase platformMCPNode.jsDatabases- msitarzewski 158kWordPress Performance EngineerExpert WordPress performance engineer specializing in Core Web Vitals, object caching (Redis/Memcached), page caching, database and WP_Query optimization, the Transients API, asset minification/deferral/critical CSS, image optimization and lazy loading, CDN integration, plugin performance auditing, and PHP-FPM/opcache tuning for fast, audit-passing sitesAssistantDatabasesFrontendImages
dongdongbh 2.2kMindwtrTask automation via SQLite, desktop Local API, or Mindwtr Cloud; read-only by default.MCPNode.jsDatabases- alirezarezvani 28kRAG ArchitectUse when the user asks to design a RAG pipeline, choose a chunking strategy or embedding model, pick a vector database, or evaluate retrieval quality (precision@k, recall@k, NDCG). Examples: 'design a RAG system for our docs', 'what chunk size should I use for this corpus', 'evaluate my retriever against ground truth'. NOT for general LLM cost tuning (use llm-cost-optimizer) or agent loops over retrieval (use agenthub).SkillPythonDatabasesAI models
wshobson 40kSQL Optimization PatternsMaster SQL query optimization, indexing strategies, and EXPLAIN analysis to dramatically improve database performance and eliminate slow queries. Use when debugging slow queries, designing database schemas, or optimizing application performance.SkillNo codeDatabasesCoding- wshobson 40kDatabase adminExpert database administrator specializing in modern cloud databases, automation, and reliability engineering. Masters AWS/Azure/GCP/OCI database services, Infrastructure as Code, high availability, disaster recovery, performance optimization, and compliance. Handles multi-cloud strategies, container databases, and cost optimization.AssistantSonnetDatabasesCloudLegal
- msitarzewski 158kBackend ArchitectSenior backend architect specializing in scalable system design, database architecture, API development, and cloud infrastructure. Builds robust, secure, performant server-side applications and microservicesAssistantDatabasesBackendArchitecture
- msitarzewski 158kDatabase Reliability EngineerExpert database reliability engineer (DBRE) — high availability and replication, automated failover, backup and point-in-time recovery, zero-downtime online schema migrations, connection pooling, and disaster-recovery drills. Focused on keeping data safe and available, not query tuning.AssistantDatabases
- alirezarezvani 28kMigration ArchitectZero-downtime migration planning, compatibility validation, and rollback strategy generation. Tools for system, database, and infrastructure migrations with minimal business impact. Use when planning a database migration, infrastructure cutover, system replacement, or any high-risk transition that needs explicit rollback paths.SkillPythonDatabases
neo4j-contrib 988mcp-neo4j-memoryMCP Neo4j Knowledge Graph Memory ServerMCPPythonDatabasesMemory- neo4j-contrib 988mcp-neo4j-data-modelingA simple Neo4j MCP server for creating graph data models.MCPPythonDatabases
- neo4j-contrib 988mcp-neo4j-aura-managerMCP server for Neo4j Aura Database Instance Manager.MCPPythonDatabases
- neo4j-contrib 988mcp-neo4j-cypherA simple Neo4j MCP server that allows you to run Cypher queries against a Neo4j database.MCPPythonDatabases