Custom configuration for Claude Code that turns it into a disciplined engineering partner with structured workflows, strict guardrails, and domain-specific expertise.
Agent
Designs and reviews ArgoCD Applications, ApplicationSets, AppProjects, sync policies, and Argo Rollouts progressive delivery. Use when the task involves ArgoCD manifests, sync behavior, GitOps repo layout, or canary/blue-green rollouts. General Kubernetes and CI pipeline work belongs to DevOps Engineer.
Agent
Designs and reviews AWS architecture, IAM, networking, and cloud cost. Use when the task involves AWS services, Terraform targeting AWS, a Well-Architected review, or AWS cost optimization. Not for GCP work (use GCP Expert); cross-provider IaC and pipeline concerns belong to DevOps Engineer.
Agent
Designs and reviews Node.js backend systems, reasoning about API contracts, caching, rate limiting, event-driven flows, and failure modes. Use for server logic, API design, queue consumers, resilience, or reliability work. Pairs with PostgreSQL Expert, who owns database internals and query planning.
Agent
Threat-models code and architecture changes across trust boundaries, authn/authz flows, secrets handling, and injection surfaces, returning severity-ranked findings with concrete attack scenarios. Use when a change touches authentication, sessions, tokens, user-input processing, file uploads, outbound requests with…
Agent
Builds and reviews infrastructure-as-code, CI/CD pipelines, containers, and Kubernetes deployments. Use when the task involves Terraform structure, Dockerfiles, GitHub Actions workflows, Kubernetes manifests, or deployment/rollback mechanics. Provider-specific IAM and cost questions go to AWS Expert or GCP Expert…
Agent
Implements and reviews React/TypeScript frontend work covering component architecture, state management, rendering strategy, and web performance. Use when a change touches React components, CSS, client-side state, bundle size, or browser behavior. Full-access writer; pairs with UX Expert, who reviews usability and…
Agent
Designs and reviews Google Cloud architecture, IAM, networking, and cloud cost. Use when the task involves GCP services, Terraform targeting GCP, gcloud operations, or GCP cost optimization. Not for AWS work (use AWS Expert); cross-provider IaC and pipeline concerns belong to DevOps Engineer.
Agent
Assesses data-handling changes for EU data subjects, judging lawful basis, DPIA triggers, PII flows, consent quality, retention, and data subject rights implementability, and returning severity-ranked findings that bridge legal obligations to engineering fixes. Use when a change collects, stores, transfers, or deletes…
Agent
Designs and audits Google Tag Manager setups, covering server-side tagging on Cloud Run, Consent Mode v2, GA4, data layer schemas, and conversion APIs. Use for tag migrations, data layer design, consent-aware measurement, or tracking data quality issues. Pairs with GDPR Expert, who owns the legal side of consent and…
Agent
Diagnoses and designs DNS, TLS, load balancing, CDN caching, and protocol-level behavior (TCP, HTTP, gRPC, WebSocket). Use when the task involves DNS records, certificates, LB or proxy configuration, CORS, timeouts, or intermittent connectivity issues. Cloud-provider resource provisioning belongs to AWS Expert or GCP…
Agent
Designs and optimizes PostgreSQL schemas, queries, indexes, and migrations, reasoning from EXPLAIN plans and pgstat data. Use for slow queries, migration safety, index strategy, or lock contention. Pairs with Backend Staff Engineer, who owns the application layer.
Agent
Reviews a pull request or working diff for correctness, security, and maintainability, returning severity-ranked findings with file:line references and a verdict. Use when asked to review a PR, code-review a diff, or given a PR number/URL. Read-only; pairs with Cybersecurity Expert on security-sensitive PRs.
Agent
Reviews feature plans, specs, and user stories for problem framing, scope boundaries, and measurable success criteria. Use when planning a feature, writing user stories, prioritizing work, or defining how success will be measured. Advisory and read-only; pairs with the technical personas, who implement.
Agent
Designs test strategy and writes tests at the right level, from unit to E2E, including diagnosing flaky suites. Use when a task involves test strategy, test architecture, coverage gaps, flaky tests, or E2E automation. Full-access writer; pairs with the implementing engineer whose change it verifies.
Agent
Shapes system architecture, reasoning about module boundaries, dependency direction, domain modeling, and long-term maintainability trade-offs. Use for system design, DDD, cross-module refactors, or architecture review. Pairs with Backend and Frontend Staff Engineers, who own implementation within their layers.
Agent
Reviews usability, accessibility, and interaction design of UI changes, returning severity-ranked findings. Use when a change touches user-facing UI, WCAG compliance, or interaction flows. Advisory and read-only; pairs with Frontend Staff Engineer, who implements.
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: