tranhieutt.

agent-health

Reads production/traces/agent-metrics.jsonl and displays a per-agent performance summary table for the current or a specified session. Highlights agents with high error rates or OPEN circuit breaker state.

agent-style

Provides the vendored agent-style v0.3.5 prose rule pack as a portable Claude skill. Use when installing, syncing, applying, or auditing SDD Agent-Style support in another project, or when a style-review workflow needs the bundled rules.

angular-best-practices

Provides Angular best practices for components, modules, services, and reactive patterns. Use when working with Angular TypeScript files, component templates, NgModules, RxJS observables, or when the user mentions Angular, ng, or Angular CLI.

annotate

Records unexpected API behaviors, undocumented caveats, version bugs, or non-obvious workarounds into .claude/memory/annotations.md. Use immediately when an undocumented behavior or surprising caveat is discovered during development.

aws-serverless

Provides AWS serverless architecture patterns for Lambda, API Gateway, DynamoDB, SQS, and SAM/CDK. Use when working with AWS serverless files (serverless.yml, CDK stacks) or when the user mentions Lambda, API Gateway, serverless, or AWS SAM.

backend-architect

Designs scalable backend architectures covering microservices, event-driven systems, API gateways, and data stores. Use when designing a backend system or when the user mentions backend architecture, scalability, or distributed systems.

cloud-run-puppeteer

Deploys Puppeteer browser automation on Google Cloud Run with Docker. Use when running headless browser tasks on Cloud Run, or when the user mentions Cloud Run, Puppeteer, headless Chrome, or serverless browser automation.

codex-sdd

Adapts SDD for Codex while preserving Claude Code behavior. Use when working in Codex, setting up Codex compatibility, mapping Claude tools to Codex tools, or explaining how SDD should run outside Claude Code.

database-architect

Designs relational and NoSQL database schemas, indexing strategies, migration plans, and data modeling patterns. Use when designing a database or when the user mentions database architecture, schema design, or data modeling.

db-review

Reviews database schemas, queries, and migrations for correctness, performance, security, and best practices. Use when reviewing SQL migration files or when the user mentions database review, schema review, or query audit.

deep-interview

Conducts a structured technical deep-dive to gather detailed requirements, constraints, and decisions from the user. Use when starting a complex feature or when the user wants to be asked structured clarifying questions before implementation.

devops-deploy

Designs and executes CI/CD pipelines, GitOps workflows, deployment automation, and cloud infrastructure deployment including Docker, AWS Lambda, SAM, Terraform, and GitHub Actions. Use when building or improving CI/CD pipelines, containerizing applications, creating deployment runbooks, or deploying to cloud infrastructure.

dotnet-backend-patterns

Provides .NET and ASP.NET Core patterns for REST APIs, Entity Framework, dependency injection, and middleware. Use when working with C# files (*.cs, *.csproj) or when the user mentions .NET, ASP.NET Core, C#, or Entity Framework.

drizzle-orm-expert

Provides Drizzle ORM schema design, query patterns, migrations, and TypeScript integration for SQL databases. Use when working with Drizzle files (schema.ts, drizzle.config.ts) or when the user mentions Drizzle ORM or drizzle-kit.

event-sourcing-architect

Designs event-sourced systems with CQRS, event stores, projections, and eventual consistency patterns. Use when architecting event-driven systems or when the user mentions event sourcing, CQRS, event store, or domain events.

fastapi-pro

Production FastAPI patterns — async endpoints, SQLAlchemy 2.0 async, Pydantic V2, dependency injection, JWT auth, testing. Use for Python 3.11+ FastAPI backends. NOT for Django (→ `django-patterns`) or Node.js (→ `backend-patterns`).

fork-join

Runs multiple specialist subagents in parallel then merges their outputs into a unified result. Use when a task can be split into independent parallel workstreams that need to be recombined.

frontend-ui-dark-ts

Builds dark-themed TypeScript UIs with accessible color systems, contrast compliance, and responsive design patterns. Use when implementing dark mode or building accessible TypeScript UI components.

gate-check

Validates a software product, service, or feature against readiness gates before advancing to the next delivery phase. Use when planning a phase transition or when the user mentions gate check, phase review, or readiness validation.

gemini-api-integration

Provides code patterns for Google Gemini API integration including text generation, multimodal inputs, and streaming. Use when working with Google AI SDK or when the user mentions Gemini API, Google AI, or Vertex AI.

gitlab-ci-patterns

Provides GitLab CI/CD pipeline patterns including stages, jobs, artifacts, caching, and environment deployments. Use when working with .gitlab-ci.yml or when the user mentions GitLab CI or GitLab pipelines.

hotfix

Executes a hotfix workflow: creates a hotfix branch, applies the targeted fix, runs verification, and prepares release artifacts. Use when a critical production bug needs immediate patching or when the user mentions hotfix or emergency fix.

hybrid-cloud-architect

Designs hybrid cloud architectures connecting on-premises infrastructure with public cloud services. Use when designing systems spanning on-prem and cloud, or when the user mentions hybrid cloud or multi-environment architecture.

kubernetes-architect

Designs Kubernetes deployments, services, ingress, RBAC, Helm charts, and cluster architecture. Use when working with Kubernetes YAML files or when the user mentions Kubernetes, K8s, Helm, or container orchestration.

launch-checklist

Generates a comprehensive software launch checklist covering technical readiness, customer communications, support, and go-live steps. Use when preparing for a product launch or when the user mentions launch checklist or go-live readiness.

learner

Turns real agent failures, repeated prompts, team-specific workflows, and durable project lessons into better SDD skills or memory entries. Use when the user asks to create/update/refine skills, extract reusable lessons, improve skill routing, encode team process, or save patterns for future sessions.

llm-app-patterns

Provides architectural patterns for LLM-powered applications and AI assistants, including prompt engineering, RAG, agent loops, conversation management, and evaluation. Use when building AI-based features, chatbots, or complex AI system architectures.

map-workflow

Generates a structured multi-agent workflow graph from a pattern and agent list. Supports Sequential, Parallel, Hierarchical, and Iterative patterns. Used by @producer to plan feature delivery before any implementation begins.

markdown-injection-scanner

Scans Markdown (.md) files for malicious code injection including XSS, prompt injection, script injection, obfuscated payloads, and supply chain attack vectors. Use when auditing .md files for security threats or when the user mentions scanning markdown for malicious content.

microservices-patterns

Provides microservices design patterns for service decomposition, API gateway, circuit breakers, saga orchestration, and inter-service communication. Use when designing or implementing microservices architecture.

ml-engineer

Provides machine learning engineering patterns for model training pipelines, feature engineering, experiment tracking, and model serving. Use when working with ML code or when the user mentions ML engineering, model training, or feature pipelines.

mlops-engineer

Provides MLOps patterns for ML CI/CD pipelines, model registries, monitoring, and data drift detection. Use when setting up ML infrastructure or when the user mentions MLOps, model deployment, ML pipeline, or model monitoring.

nextjs-patterns

Comprehensive Next.js development patterns for App Router, Server Components, TypeScript, and Tailwind CSS. Covers foundational principles, data fetching, routing, performance, and an 8-phase development workflow. Also includes Server Actions and Metadata patterns.

nosql-expert

Provides distributed NoSQL patterns for Cassandra and DynamoDB covering query-first modeling, single-table design, and partition key strategies. Use when designing NoSQL schemas or when the user mentions Cassandra, DynamoDB, or NoSQL modeling.

postmortem-writing

Writes blameless postmortems with root cause analysis, incident timelines, contributing factors, and action items. Use when conducting incident reviews or when the user mentions postmortem, root cause analysis, or blameless review.

pr-writer

Creates and formats pull request titles, descriptions, and linked issue references following conventional commit standards. Use when creating or updating a pull request or when the user mentions PR description, pull request, or opening a PR.

prisma-expert

Provides Prisma ORM patterns for schema design, migrations, query optimization, and relation modeling. Use when working with Prisma schema files (schema.prisma) or when the user mentions Prisma, Prisma migrations, or Prisma queries.

radix-ui-design-system

Provides Radix UI patterns for building accessible design systems with headless components, theming, and compound component architecture. Use when building UI with Radix UI primitives or when the user mentions Radix UI, headless components, or accessible component libraries.

rag-engineer

Provides Retrieval-Augmented Generation patterns covering embedding models, vector databases, chunking strategies, and retrieval optimization. Use when building RAG systems or when the user mentions RAG, vector search, embeddings, or retrieval-augmented generation.

resume-from

Restores cognitive state from an atomic checkpoint in .tasks/checkpoints/[task_id].md, enabling instant recovery at the exact point of failure without re-running the full task.

save-state

Saves current working context to production/session-state/active.md AND writes an atomic per-task checkpoint to .tasks/checkpoints/[task_id].md. Run before any major context reset, when context usage exceeds 60%, or when ending a work session.

skill-technical-document

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spec-evolution

Resolves mismatches between an approved spec and implementation reality by proposing controlled spec changes before code or plan changes continue.

sql-optimization-patterns

Provides SQL optimization patterns for query performance, indexing strategies, schema design, and database tuning. Use when optimizing slow queries, designing indexes, or tuning database performance.

style-review

Reviews Markdown prose against the pinned agent-style v0.3.5 rules and optionally writes a polished copy beside the source. Use for specs, ADRs, PR bodies, release notes, and technical docs when prose quality or evidence discipline matters.

sync-template

Syncs the .claude/ directory from an upstream template repository, showing a diff and applying new or modified files without overwriting local customizations. Use when updating SDD template files or when the user mentions template sync or upstream update.

tailwind-patterns

Provides Tailwind CSS v4 patterns for CSS-first configuration, container queries, design tokens, and utility-first component architecture. Use when working with Tailwind CSS files or when the user mentions Tailwind, Tailwind v4, or utility-first CSS.

team-backend

Orchestrates the backend team of technical-director, backend-developer, data-engineer, and security-engineer to design, implement, and review a backend system end-to-end. Use when a backend feature needs coordinated multi-specialist delivery.

team-feature

Orchestrates a cross-functional feature team of product-manager, ux-designer, frontend-developer, backend-developer, and qa-engineer to deliver a complete feature from specification to tested implementation. Use when a feature requires full-stack coordinated delivery.

team-ui

Orchestrates the UI team of ux-designer and ui-programmer to design, implement, and polish a UI feature from wireframe to final implementation. Use when a UI component or page needs both design and engineering coordination.

tech-debt

Scans the codebase for technical debt indicators, categorizes and prioritizes findings, and maintains a debt register with repayment recommendations. Use when assessing codebase health, planning refactoring, or when the user mentions technical debt or code quality.

trace-history

Reads and filters production/traces/decision_ledger.jsonl to display a timeline of agent decisions. Supports filtering by agent, risk_tier, task_id, outcome, and date range.

ui-spec

Guidelines and procedures for creating comprehensive UI Specifications from PRDs and prototypes.

unfreeze

Unlocks the codebase after a release freeze or incident freeze period to resume normal development. Use when a freeze period ends or when the user mentions unfreezing or lifting the code freeze.

update-codemap

Updates docs/technical/CODEMAP.md by scanning the current codebase structure. Run after a significant feature merge, refactor, or when CODEMAP feels stale.

using-sdd

Routes every software-development request through the right SDD workflow before action. Use at session start, before clarifying questions, before edits, and whenever deciding which SDD skill should govern a task.

vector-database-engineer

Provides vector database and semantic search patterns for Pinecone, Weaviate, Qdrant, Milvus, and pgvector in RAG and recommendation systems. Use when implementing vector search or when the user mentions vector database, semantic search, embeddings, or similarity search.

vertical-slicing

Guidelines and procedures for planning and implementing end-to-end functional slices for fullstack features.

visual-engineer

Generates high-fidelity architecture diagrams, sequence flows, and component maps for SDD projects. Use when finalizing a design phase, documenting system architecture, or visualizing agentic workflows. Default style: Style 6 (Claude Official).