By rnavarych
Acts as a senior DBA across 230+ database systems, handling schema design, query optimization, replication, backup, migration, monitoring, security hardening, capacity planning, and database DevOps for relational, document, key-value, graph, time-series, vector, and streaming databases.
Backup strategies and disaster recovery across all database engines. Full, incremental, differential backups. PITR (Point-in-Time Recovery). PostgreSQL (pg_dump, pgBackRest, Barman, WAL archiving), MySQL (mysqldump, XtraBackup, Clone Plugin), MongoDB (mongodump, Atlas backup), Redis (RDB, AOF). RPO/RTO planning, backup verification, cloud-native backup. Use when designing backup strategies, implementing disaster recovery, or troubleshooting data recovery.
Database capacity and growth planning. Storage growth estimation, IOPS requirements, memory sizing (buffer pool, shared_buffers), connection count estimation, sharding triggers, read replica scaling, cost estimation per cloud provider. Load testing (pgbench, sysbench, YCSB, HammerDB). When to shard vs scale up vs read replicas. Use when planning database capacity, sizing infrastructure, or evaluating scaling strategies.
Deep operational guide for 12 columnar/wide-column databases. Apache Cassandra (compaction, consistency, SAI, nodetool), ScyllaDB (shard-per-core, Alternator), HBase, Bigtable, ClickHouse (MergeTree, materialized views), Druid, StarRocks, Kudu, MonetDB, Vertica, Pinot. Use when configuring, tuning, or operating columnar databases for analytics or high-write workloads.
Connection pooling and management across all engines. PgBouncer (transaction/session/statement mode), pgcat (Rust-based, load balancing, sharding), ProxySQL (MySQL query routing, caching), HikariCP (Java), application-level pooling (Prisma, SQLAlchemy, GORM, database/sql). Serverless connection strategies (Prisma Accelerate, RDS Proxy, Neon pooler). Connection limits, pool sizing, leak detection. Use when configuring connection pools, optimizing connection usage, or troubleshooting connection issues.
Data modeling methodologies and patterns across paradigms. Entity-Relationship modeling (Chen, Crow's Foot, UML), document modeling (embedding vs referencing, polymorphic, bucket, outlier patterns), graph modeling (labeled property graph, RDF), time-series modeling, event sourcing, dimensional modeling (star/snowflake schema, SCD), Data Vault (hubs, links, satellites), polyglot persistence. Use when designing data models, choosing between modeling approaches, or mapping domain models to database schemas.
Uses power tools
Uses Bash, Write, or Edit tools
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claude plugin marketplace add rnavarych/alpha-engineer
24 agents. 191 skills. 22 commands. Specialized engineering plugins for Claude Code across 9 developer roles, 4 industry domains, and one unhinged team of 5 senior engineers.
5 senior engineers trapped in one plugin. They deliver excellent technical decisions. Multiplied personality disorder as a development methodology.
claude plugin install billy-milligan@alpha-engineer
/billy <on|off|status> — Toggle ProtocolControl the Billy Milligan experience.
/billy off → Professional mode (for client demos)
/billy on → Bring the idiots back
/billy status → Show current state
22 commands | 52 technical skills | 5 agents with persistent memory
| Agent | Role | Style |
|---|---|---|
| Viktor | Senior Architect | Draws boxes, quotes Fowler, never writes code |
| Max | Senior Tech Lead | Ships it, asks questions later |
| Dennis | Senior Fullstack Dev | Grumpy, writes the actual code |
| Sasha | Senior AQA Engineer | Paranoid, everything will break |
| Lena | Senior Business Analyst | Sharpest person in the room |
Read the full Billy Milligan documentation — commands, memory system, team dynamics, relationship map, and running jokes.
| Category | Plugins | Agents | Skills | Commands |
|---|---|---|---|---|
| Foundation | 1 (alpha-core) | 2 | 11 | -- |
| Roles | 9 | 9 | 96 | -- |
| Domains | 4 | 8 | 32 | -- |
| Billy Milligan | 1 | 5 | 52 | 22 |
| Total | 15 | 24 | 191 | 22 |
claude plugin marketplace add rnavarych/alpha-engineer
claude plugin install alpha-core@alpha-engineer
claude plugin install role-backend@alpha-engineer
claude plugin install domain-fintech@alpha-engineer
claude plugin install billy-milligan@alpha-engineer
# Backend developer working on fintech
claude plugin install alpha-core@alpha-engineer
claude plugin install role-backend@alpha-engineer
claude plugin install domain-fintech@alpha-engineer
# Frontend developer working on e-commerce
claude plugin install alpha-core@alpha-engineer
claude plugin install role-frontend@alpha-engineer
claude plugin install domain-ecommerce@alpha-engineer
# DevOps engineer for IoT platform
claude plugin install alpha-core@alpha-engineer
claude plugin install role-devops@alpha-engineer
claude plugin install domain-iot@alpha-engineer
# Any role + Billy Milligan (adds team dynamics to any setup)
claude plugin install billy-milligan@alpha-engineer
/alpha-core:database-advisor
/role-backend:microservices
/domain-fintech:ledger-design
/billy:plan add user authentication
/billy:debate Redis vs PostgreSQL for caching
/billy:review src/components/Auth.tsx
/billy:roast should we use GraphQL?
/billy:adr-new "Database Choice"
/billy:invite "security expert"
/billy:lang ru
npx claudepluginhub rnavarych/alpha-engineer --plugin role-databaseSenior Frontend Developer with deep expertise in React, Vue, Angular, modern CSS architecture, accessibility (WCAG), frontend performance optimization, state management, and build tooling.
Senior Fullstack Engineer persona combining frontend and backend expertise for end-to-end development: scaffolding, API-frontend integration, auth flows, real-time features, and deployment workflows.
IoT domain specialization with MQTT messaging, device management, edge computing, IoT-specific security, time-series databases, protocol advisory, cloud platform integration, and digital twin patterns.
E-Commerce domain specialization with payment gateway integration, product catalog design, cart/checkout flows, inventory management, order processing, search/merchandising, PCI DSS compliance, and analytics.
Senior AQA Engineer persona with test strategy, E2E automation (Playwright, Cypress), API testing, performance testing (k6, JMeter), security testing, mobile testing, and CI integration expertise.
Database architecture, schema design, and SQL optimization for production systems
Schema design, query optimization, migrations, indexing, transactions, data integrity, and connection pooling.
Database plugin for nosql-data-modeler
SQL optimization, query tuning, and database performance expert for production systems
Database design toolkit for schema modeling, query optimization, and indexing strategies. Includes database architect agent for strategic database decisions.
Create, connect, and interact with a Cloud SQL for PostgreSQL database and data.