A complete engineering toolkit for Claude Code: premium skills, agent workflows, ADR/PRD templates, incident learning, and production-grade governance.
This repository also configures its own agents. See what claude-code-ultimate-engineering-system tells them →
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Stress-test and review architecture decisions — attack assumptions, audit option quality and reversibility, and probe distributed-systems failure modes. Use before any major architecture decision is approved.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude CodeCodex
Design REST, internal, and event-driven APIs with strong contracts, consistency, idempotency, error semantics, and operational safety.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude CodeCodex
Evaluate technical options with explicit trade-offs across reliability, delivery speed, operability, cost, security, and long-term maintainability.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude CodeCodex
Evaluate technical decisions through explicit trade-offs in cost, delivery speed, reliability, maintainability, reversibility, and cognitive load.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Run a production incident end to end — triage, contain, investigate, resolve — then close the loop with a blameless postmortem, failure-mode prevention, and updated standards.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Enforce clean NestJS architecture, module boundaries, provider discipline, DTO separation, and maintainable application structure.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude CodeCodex
Analyze Node.js services for runtime safety, concurrency correctness, memory health, timeout behavior, shutdown integrity, and production resilience.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Analyze bottlenecks and recommend evidence-based improvements across application, database, queue, and infrastructure layers.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Produce a safe release plan with a premortem, explicit gates, success/failure signals, and rollback triggers. Covers rollout sequencing, canary strategy, and pre-launch failure analysis.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Map an unfamiliar repository before changing it — understand the structure, architecture, conventions, dependencies, scripts, and local development workflow before proposing or making changes.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Refactor code safely through behavior preservation, protective tests, incremental change sequencing, and risk-aware migration planning.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Review code, APIs, infrastructure, IAM, secrets, and data handling for practical application and platform security risks.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Isolate the root cause of a bug, failure, or flaky test through disciplined hypothesis testing — and trace the full cause chain, not just the surface symptom.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Define pragmatic, high-confidence test coverage for features, bug fixes, refactors, APIs, workers, queues, and distributed workflows.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Design and review queues, workers, and event-driven flows — idempotency, delivery guarantees, contract safety, and partial-failure handling. Covers Redis/BullMQ workers and async invariants/contracts.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Review code changes for correctness, maintainability, security, performance, observability, compatibility, and long-term architectural health.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Design and review Postgres schema, queries, migrations, and access paths — correctness, performance, indexing, and migration safety. Covers SQL engineering and Postgres performance/safety.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Measure and improve engineering delivery performance using the four DORA metrics — deployment frequency, lead time for changes, change failure rate, and time to restore. Use to assess delivery health and find the next bottleneck.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Design high-value telemetry using OpenTelemetry for diagnostics, trace continuity, metrics quality, SLOs, and incident response.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Full PRD review in one pass through two lenses — engineering (feasibility, metrics, gaps, decision quality, dependencies, learning plan) and product/PM (right problem, right audience, solution quality, hypothesis strength, documentation completeness). Use before committing engineering effort to a PRD.
caiaffa/claude-code-ultimate-engineering-system
Skill Claude Code
Assess whether a service is ready for production and operable at scale — reliability, capacity, infrastructure (Kubernetes/AWS), and operational excellence. Use before launch and in periodic service reviews.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: