Nosql Expert

This is a solid mental model guide for Cassandra and DynamoDB that actually explains the core shift from relational thinking: model your queries first, not your entities. It covers the essentials like partition key cardinality, single-table design patterns, and why denormalization is your friend when storage is cheap and joins don't exist. The comparison tables and anti-pattern callouts (especially the ALLOW FILTERING warning) are genuinely useful if you're migrating from Postgres or debugging hot partitions in production. It won't teach you the APIs, but it will save you from designing a schema that looks like SQL with extra steps.

skills.sh installs: 426
GitHub stars: 39.4K
last updated: Jun 3, 2026

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Install

$ npx -y skills add sickn33/antigravity-awesome-skills --skill nosql-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

NoSQL Expert Patterns (Cassandra & DynamoDB)

Overview

This skill provides professional mental models and design patterns for distributed wide-column and key-value stores (specifically Apache Cassandra and Amazon DynamoDB).

Unlike SQL (where you model data entities), or document stores (like MongoDB), these distributed systems require you to model your queries first.

When to Use

Designing for Scale: Moving beyond simple single-node databases to distributed clusters.
Technology Selection: Evaluating or using Cassandra, ScyllaDB, or DynamoDB.
Performance Tuning: Troubleshooting "hot partitions" or high latency in existing NoSQL systems.
Microservices: Implementing "database-per-service" patterns where highly optimized reads are required.