libre-arch

API gateway design: gateway topology, backend-for-frontend, routing, edge authentication, rate limiting, and API versioning.

1 skill · 1 command · 1 agent

Architecture Decision Records: write, maintain, supersede, and enforce decisions in Nygard or MADR format.

1 skill · 1 command · 1 agent

Caching strategy: cache-aside, write-through, write-behind, invalidation, stampede prevention, Redis, and CDN caching.

1 skill · 1 command · 1 agent

Resilience patterns: circuit breakers, bulkheads, timeouts, retries with jitter, and fallbacks that stop cascading failures.

1 skill · 1 command · 1 agent

Clean Architecture: the dependency rule, use case interactors, ports, and business logic free of framework coupling.

1 skill · 1 command · 1 agent

CQRS and event sourcing: command handlers, event stores, projections, snapshots, and event versioning.

1 skill · 1 command · 1 agent

Database architecture: repositories, Unit of Work, N+1 prevention, read replicas, connection pools, and sharding.

1 skill · 1 command · 1 agent

Data consistency: CAP and PACELC, consistency models, CRDTs, vector clocks, quorums, two-phase commit, and sagas.

1 skill · 1 command · 1 agent

Distributed systems: consensus with Raft and Paxos, leader election, distributed locks, gossip, consistent hashing, and partitions.

1 skill · 1 command · 1 agent

Domain-Driven Design: bounded contexts, context maps, aggregates, value objects, domain events, and event storming.

1 skill · 1 command · 1 agent

Event-driven architecture: broker choice, choreography vs orchestration, the outbox pattern, dead letter queues, and schema evolution.

1 skill · 1 command · 1 agent

Hexagonal architecture: ports and adapters, dependency direction, and framework-free testing of the application core.

1 skill · 1 command · 1 agent

Message brokers: RabbitMQ, Kafka, SQS/SNS, and Azure Service Bus topology, delivery semantics, and dead letter queues.

1 skill · 1 command · 1 agent

Microservices: service boundaries, inter-service communication, data ownership, service mesh, and observability.

1 skill · 1 command · 1 agent

System migration: strangler fig, branch by abstraction, parallel run, expand-contract schema changes, and canary cutover.

1 skill · 1 command · 1 agent

Modular monoliths: module boundaries, vertical slices, and knowing when a monolith wins and when to split.

1 skill · 1 command · 1 agent

Sagas: orchestration vs choreography, compensating transactions, isolation countermeasures, and failure recovery.

1 skill · 1 command · 1 agent

Scalability: horizontal and vertical scaling, load balancing, auto-scaling, read/write splitting, and capacity planning.

1 skill · 1 command · 1 agent

Service discovery: Kubernetes DNS, Consul, and Eureka, health checks, and client-side vs server-side discovery.

1 skill · 1 command · 1 agent

System design: requirements, back-of-envelope estimation, component selection, and explicit trade-offs.

1 skill · 1 command · 1 agent

Optional LibreArch hooks: an architecture summary at session start, a confirmation prompt before Claude reads or edits secrets files, and a dependency-direction scan after each code edit.

hooks