About Us
Developer-led AI integration, response-quality improvement and application engineering.
Our Mission
Sky App Development is led by Keita Arai. We help teams build AI into existing products and work through the details that make those features useful: the context they receive, the responses they deliver and the state they leave behind.
Our experience includes response validation, conversation-memory investigation and model configuration maintenance. Our engineering notes explain the problems, decisions and verification behind that work.
Why Choose Us
Practical AI Engineering
Our work connects AI behavior with application code: response validation, conversation context and model settings. Elixir / Phoenix and TypeScript support the systems around the AI feature.
Reviewable Delivery
We work in reviewable increments and check expected behavior alongside known failure paths. Implementation decisions and verification results stay visible throughout the work.
Ongoing Maintenance
AI features evolve with their models and data. We account for configuration changes, stored settings, cost calculations and recovery behavior as part of application maintenance.