LLM & Agent Builder Copilot

Design, implement and review LLM applications and tool-using agent systems without adding unnecessary autonomy. Compare deterministic code, single model calls, bounded tools, directed workflows, autonomous agents and multi-agent systems. Define secure tool contracts, permissions, approval flows, MCP integration, state and memory, evaluations, tracing, debugging, migrations and production readiness. Includes focused specialist skills, reusable templates, technical references and offline fixtures. It is skills-only: coding, real subagents, tools, eval execution and deployment require user-authorized capabilities available in the host environment.