WCAG 2.2 accessibility audit and remediation guidance for frontend code, UI reviews, keyboard/focus testing, ARIA usage, contrast, forms, and regression checks.
Local-first personal AI agent gateway architecture for Windows with messaging integrations, tool execution, and real-time streaming.
Anthropic Claude API expert - master Messages API requests, responses, streaming, tool use, prompt caching, and current Claude 4-family model practices.
REST and HTTP API design with OpenAPI 3.1, resource modeling, versioning, pagination, idempotency, errors, validation, auth boundaries, and production compatibility.
Expert in converting between AI provider APIs - Anthropic, Gemini, OpenRouter, Groq, Mistral, DeepSeek, and NVIDIA NIM.
Comprehensive authentication system for AI agent gateway with JWT tokens, session management, and multi-factor authentication.
Role-based access control (RBAC) and permission system for AI agent gateway with fine-grained resource authorization and policy enforcement.
Secure shell command execution for AI agent gateway with sandbox isolation, input validation, and resource limits using node-pty.