the-startup
Walks a feature from a rough idea through requirements, design and implementation, with separate skills for debugging, codebase analysis and documentation. Helps a solo builder ship faster with less back-and-forth on what to build.

Walks a feature from a rough idea through requirements, design and implementation, with separate skills for debugging, codebase analysis and documentation. Helps a solo builder ship faster with less back-and-forth on what to build.
Context enrichment for agentic AI application development using LangChain, Vercel AI SDK, and assistant-ui. Use when building AI…
Deep-research analysis of a codebase, a topic, or both. Clarifies the question, agrees the research angles with you, then runs a…
REST and GraphQL API design patterns, OpenAPI/Swagger specifications, versioning strategies, and authentication patterns. Use…
System architecture patterns including monolith, microservices, event-driven, and serverless, with C4 modeling, scalability…
Consolidate a completed specification into a single archived record and remove its working directory. Use as the final stage…
Required first step before any creative work — creating features, building components, adding functionality, or modifying…
Unified code review skill for correctness, design, readability, security, performance, testability, accessibility, and…
Create or update a project constitution with governance rules. Uses discovery-based approach to generate project-specific rules.
Systematically diagnose and resolve bugs through conversational investigation and root cause analysis
Generate and maintain documentation for code, APIs, and project components
Unified domain and data modeling for business entities, invariants, schema design, aggregate boundaries, and evolution strategy.…
RICE, MoSCoW, Kano, and value-effort prioritization frameworks with scoring methodologies and decision documentation. Use when…
PROACTIVELY build features across any technology layer. MUST BE USED when implementing UI components, API endpoints, services,…
PROACTIVELY build delivery platforms end-to-end when teams need containers, infrastructure as code, or CI/CD automation. MUST BE…
PROACTIVELY design interactions when users report navigation confusion or content findability issues. MUST BE USED when creating…
PROACTIVELY design system architecture when building new services or planning for scale. MUST BE USED when making microservices…
PROACTIVELY establish visual design foundations and accessibility standards when UI consistency or usability quality is at risk.…
PROACTIVELY implement monitoring when deploying to production or investigating incidents. MUST BE USED when setting up SLOs,…
PROACTIVELY optimize performance when any layer shows degradation. MUST BE USED for slow page loads, API latency, query…
PROACTIVELY research product direction by combining market evidence and requirement clarification. MUST BE USED when teams need…
PROACTIVELY conduct user research before designing major features or when conversion metrics drop. MUST BE USED when building…
PROACTIVELY review code for breaking changes and compatibility issues. MUST BE USED when reviewing PRs that modify public APIs,…
PROACTIVELY review code for robustness risks caused by unnecessary complexity and unsafe concurrency patterns. MUST BE USED when…
PROACTIVELY review code and dependency changes for security vulnerabilities, supply chain risks, and compliance concerns. MUST BE…
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