Browse reusable instructions for your AI tools. Copy and customize a prompt, or download a skill for a supported agent.
PostgreSQL deep-dive: EXPLAIN ANALYZE interpretation, index types (B-tree, GIN, GiST, BRIN), partial/covering/composite indexes, pg_stat_statements slow query analysis, Row Level Security, window functions, CTEs, advisory locks, LISTEN/NOTIFY, connection pooling with PgBouncer. Use when optimizin...
Advises on database selection, schema design, indexing, query optimization, and migration. Covers SQL, NoSQL, Graph, Columnar, Key-Value, Time Series, NewSQL, Vector, Serverless, Data Warehouse, Embedded, Multi-Model, Streaming, and Decentralized databases. 100+ database technologies including Po...
Deep operational guide for 12 NewSQL/distributed SQL databases. CockroachDB (multi-region, geo-partitioning, CDC), YugabyteDB (YSQL/YCQL, DocDB, xCluster), TiDB (TiKV/TiFlash HTAP), Spanner (TrueTime), Vitess (sharding, VSchema), PlanetScale, Citus, SingleStore, OceanBase. Use when implementing g...
Deep operational guide for 20 relational/SQL databases. PostgreSQL tuning (VACUUM, WAL, partitioning, extensions, PgBouncer), MySQL/MariaDB (InnoDB, Vitess, Galera, ProxySQL), Oracle (RAC, Data Guard), MS SQL Server (AlwaysOn AG, columnstore), SQLite, Db2, HANA, and managed cloud options (Aurora,...
Deep operational guide for 12 document databases. MongoDB (aggregation pipeline, sharding, Atlas, CSFLE, Vector Search), Elasticsearch/OpenSearch (ILM, mapping, query DSL, tiering), CouchDB (multi-master, PouchDB), Couchbase (N1QL, XDCR, Capella), RavenDB, DocumentDB, Cosmos DB, Firestore, Ferret...
Database selection: PostgreSQL as default, Redis for ephemeral, NoSQL comparison, specialized databases, polyglot persistence. Use when choosing databases.
Deep operational guide for 8 multi-model databases. ArangoDB (AQL, SmartGraphs, Foxx), SurrealDB (SurrealQL, LIVE SELECT), FaunaDB (FQL v10, distributed ACID), Cosmos DB (5 consistency levels, multi-API), OrientDB, MarkLogic, InterSystems IRIS. Use when a single database must support document, gr...
Database schema design principles and patterns. Normalization (1NF through 5NF/BCNF), strategic denormalization for read performance, multi-tenancy schema patterns (shared schema, schema-per-tenant, database-per-tenant), primary key strategies (UUID v7, ULID, KSUID, Snowflake ID, BIGSERIAL, CUID2...
High availability and replication topologies across all database engines. Synchronous/asynchronous/semi-synchronous replication, primary-secondary, multi-primary, quorum-based. PostgreSQL streaming/logical replication, MySQL GTID/Group Replication, MongoDB replica sets, Redis Sentinel/Cluster, Ca...
Database performance troubleshooting across all engines. PostgreSQL (pg_stat_statements, auto_explain, pg_locks, EXPLAIN ANALYZE BUFFERS), MySQL (EXPLAIN FORMAT=TREE, Performance Schema, InnoDB status, optimizer trace), MongoDB (explain executionStats, currentOp, profiler), Redis (SLOWLOG, LATENC...
ORM patterns — Drizzle, Prisma, migrations, N+1 prevention, transaction management
Guides banking API integration: Open Banking standards (PSD2, UK Open Banking, FDX), Plaid integration (Link, transactions, balance, identity), account aggregation, payment initiation (PISP), account information (AISP), BaaS platforms (Unit, Synapse, Column), and API security (mTLS, OAuth2, FAPI)...
Medical device software development covering IEC 62304 software lifecycle, ISO 14971 risk management, design controls, software verification and validation, FDA regulatory submissions, software change control, and cybersecurity for medical devices.
English language calibration for Billy Milligan agents. Load when session language is EN. Contains native speech patterns, swearing vocabulary, pet name styles, and anchor examples for all 5 agents.
The Billy Milligan communication protocol — the "infection vector" skill. Any agent or the main Claude session can reference this skill to adopt the Billy Milligan toxic-but-brilliant engineering team voice. Contains tone DNA, generation principles, and language skill loading rules.
Expert guidance on Android native development — Kotlin idioms, Jetpack Compose UI, Room database, Hilt dependency injection, Coroutines and Flow for async work, WorkManager for background tasks, Gradle build configuration (KTS), Material Design 3 theming, and Navigation Compose. Use when building...
Deep operational guide for 12 embedded databases. SQLite (PRAGMA, WAL, FTS5, multi-threaded), RocksDB (LSM-tree, compaction, column families), LevelDB, LMDB, BoltDB/bbolt, BadgerDB, Realm, ObjectBox, libSQL, H2, HSQLDB. Use when selecting or configuring embedded databases for mobile apps, desktop...
Expert guidance on iOS native development — Swift and SwiftUI best practices, UIKit interop, Core Data and SwiftData persistence, Combine reactive framework, structured concurrency (async/await, actors), App Clips, WidgetKit, Xcode project configuration, and Swift Package Manager. Use when buildi...
React Native patterns — Expo, navigation, performance optimization, New Architecture
Flutter 3.27+ patterns — Riverpod 2 state with codegen, GoRouter 14+ navigation, Impeller rendering (default on all platforms), WASM web, extension types, on-device AI (firebase_ai, MediaPipe), Patrol 3.x testing, platform channels, performance
Expert guidance on offline-first mobile architecture — local database sync (WatermelonDB, Realm, Hive, SQLite), conflict resolution strategies (last-write-wins, CRDT), optimistic UI patterns, background sync (WorkManager, BGTaskScheduler), and connectivity detection. Use when designing apps that ...
Try another platform, a broader search, or fewer filters.
Explore all resourcesResource formats: Prompts are ready to copy into a conversation. Skills install into the compatible agent shown on their page.
How it worksInclude the instructions, intended platforms, author, and license. Submissions are reviewed before publication.