Palette

An AI agent that generates complete short dramas end-to-end.

Highlights

Architected the runtime around a single “producer” orchestrator dispatching 13 specialized sub-agents, with skills as version-controlled prompts and a per-agent least-privilege tool matrix; the orchestrator owns dispatch only, preventing runaway recursion.
Built an in-process MCP tool layer with typed contracts unifying text, image, and video generation across fal.ai, Kling, and Gemini, offloading bulk generation to fast models for large latency and cost wins.
Designed a three-layer sandbox for multi-tenant execution (per-session storage, OS-level filesystem/network isolation, runtime authorization hooks) that blocks prompt injection and path traversal independently at each layer.
Engineered a lazy write-through S3 file cache, SSE streaming with session resume, an asynchronous video-job pipeline that keeps minutes-long renders off the agent loop, and atomic per-tool usage metering as the SaaS billing guardrail.

Multi-AgentMCPSandboxing