Databases · For data scientists

Diagnose a slow or expensive query with EXPLAIN and querylog, then propose concrete rewrites and better join strategies.

chmonitor/chmonitor

Recommend table ORDER BY keys, partition strategies, column data-type right-sizing, codecs, skip indexes, and projections for ClickHouse tables.

chmonitor/chmonitor

Exact column names for the system tables the agent queries most (processes, querylog, parts, merges, mutations, replicas, replicationqueue, disks, settings, zookeeper, users/grants, metrics) plus…

chmonitor/chmonitor

Diagnose and resolve ClickHouse issues: OOM, slow merges, stuck mutations, query failures with error codes, and systematic error clustering.

chmonitor/chmonitor

Injection vulnerability testing - SQL, NoSQL, OS Command, SSTI, XXE, and LDAP/XPath injection techniques.

transilienceai/communitytools

PostgreSQL schema design, indexing, and query patterns. An agent skill from cohen-liel/hivemind.

cohen-liel/hivemind

Add WhatsApp emoji reaction support — receive, send, store, and search reactions.

sbusso/claudeclaw

Show the provenance trace, linking every reported number to the SQL that produced it with a confidence badge.

ai-analyst-lab/ai-analyst

A skill your agent uses when performance is a concern - sluggish pages, slow queries, bloated bundles, high-latency APIs, or whenever someone says "optimize" or "make it faster"

NoobyGains/godmode

PostgreSQL optimization including indexes, query plans, partitioning, JSONB operations, and connection pooling

rohitg00/awesome-claude-code-toolkit

Design and verify schema migrations, bounded backfills and deployment compatibility for databases.

WrongStack/WrongStack

Parse SQLite databases into structured JSON data. An agent skill from benchflow-ai/skillsbench.

benchflow-ai/skillsbench

A skill your agent uses to design the data model AND generate the actual forward + rollback migrations in one pass — shippable SQL, not a plan.

genkovich/sdd

Normalize indel representation and split multiallelic variants using bcftools norm.

FreedomIntelligence/OpenClaw-Medical-Skills

Calculate tumor mutational burden from panel or WES data with proper normalization and clinical thresholds.

FreedomIntelligence/OpenClaw-Medical-Skills

Author an openfddpackagev1 zip for any BAS job: equipType, Haystack points to SQL roles, weather sidecar, motor vs compressor vs valve.

bbartling/open-fdd

A skill your agent uses when working on production DataFusion SQL FDD: sqlrules registry, central /api/fdd/run, parity with pandas oracle, no pandas in central.

bbartling/open-fdd

Expert guidance for working with the Apache Spark Catalyst query optimisation framework.

aehrc/pathling

A Data Warehouse and Lakehouse Schema Design Expert interviewer focused on dimensional modeling, star/snowflake schemas, analytics optimization, and modern lakehouse architectures.

PrepLabsAI/InterviewMentor

This skill should be used when designing storage, import/export, or database projections for legacy CPAMI permit-case data without losing its original string semantics.

h30190/HJPLUS_Taiwan_Architect_KB

Reindexes KB for semantic search via vector store (Qdrant). An agent skill from softspark/ai-toolkit.

softspark/ai-toolkit

Zero-downtime DB migrations: expand-contract, double-write, backfill, blue-green.

softspark/ai-toolkit

Maintain or migrate EF6-based applications with realistic guidance on what to keep, what to modernize, and when EF Core is or is not the right next step.

managedcode/dotnet-skills

The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

OpenLitterMap/openlittermap-web

Control Ecovacs DEEBOT robot vacuums through the Ecovacs Open Platform: device list, status, battery, cleaning start/pause/stop, dock return.

Anil-matcha/awesome-muse-connectors

Map claims in a literature to independent replications, robustness checks, failures, and unresolved evidence gaps.

flonat/flonat-research

提供数据库设计、优化、数据工程和数据分析能力。当需要处理数据库操作、数据管道或数据分析时使用. An agent skill from Prorise-cool/Claude-Code-Multi-Agent.

Prorise-cool/Claude-Code-Multi-Agent

Use when the user prompts "repro".

romeerez/orchid-orm

Manage Apify datasets, key-value stores, and request queues programmatically, and orchestrate multi-Actor pipelines.

jeremylongshore/tons-of-skills-marketplace

Diagnose and fix the top 15 ClickHouse errors — query failures, insert problems, memory limits, and merge issues.

jeremylongshore/tons-of-skills-marketplace

Design ClickHouse schemas with MergeTree engines, ORDER BY keys, and partitioning.

jeremylongshore/tons-of-skills-marketplace

Optimize ClickHouse Cloud costs — compute scaling, storage tiering, compression, and query efficiency for lower bills.

jeremylongshore/tons-of-skills-marketplace

Collect ClickHouse diagnostic data — system tables, query logs, merge status, and server metrics for support tickets and troubleshooting.

jeremylongshore/tons-of-skills-marketplace

Create your first ClickHouse table, insert data, and run analytical queries.

jeremylongshore/tons-of-skills-marketplace

Optimize ClickHouse query performance with indexing, projections, settings tuning, and query analysis using system tables.

jeremylongshore/tons-of-skills-marketplace

Production readiness checklist for ClickHouse — server tuning, backup, monitoring, and deployment verification.

jeremylongshore/tons-of-skills-marketplace

Production reference architecture for ClickHouse-backed applications — project layout, data flow, multi-tenant patterns, and operational topology.

jeremylongshore/tons-of-skills-marketplace

Production-ready patterns for @clickhouse/client — streaming inserts, typed queries, error handling, and connection management.

jeremylongshore/tons-of-skills-marketplace

A skill your agent uses when upgrading ClickHouse server versions or the @clickhouse/client SDK, handling breaking changes between versions, or migrating from older client libraries — covers version…

jeremylongshore/tons-of-skills-marketplace

Optimize Customer.io API performance for high throughput. An agent skill from jeremylongshore/tons-of-skills-marketplace.

jeremylongshore/tons-of-skills-marketplace

Data exploration and analysis partner for Product Managers. An agent skill from jeremylongshore/tons-of-skills-marketplace.

jeremylongshore/tons-of-skills-marketplace

Best practices for handling Evernote data. An agent skill from jeremylongshore/tons-of-skills-marketplace.

jeremylongshore/tons-of-skills-marketplace

Design Fly.io Managed Postgres, Fly Volumes, and private 6PN connectivity with explicit durability boundaries.

jeremylongshore/tons-of-skills-marketplace

Migrate Fly.io app configuration, runtime images, Machine resources, regions, volumes, or Managed Postgres through staged change control.

jeremylongshore/tons-of-skills-marketplace

Implement API migrations between versions, platforms, or frameworks with minimal downtime.

jeremylongshore/tons-of-skills-marketplace

Migrate to OCI Autonomous Database — wallet setup, mTLS, Data Pump, and python-oracledb.

jeremylongshore/tons-of-skills-marketplace

Optimize Supabase costs through plan selection, database tuning, storage cleanup, connection pooling, and Edge Function optimization.

jeremylongshore/tons-of-skills-marketplace

A skill your agent uses when preparing a Supabase project for production load — traffic spikes, connection-limit tuning, read replicas for analytics queries, CDN caching for Storage, regional Edge…

jeremylongshore/tons-of-skills-marketplace