Rolinmu Pan
Full-Stack & AI Engineer · Distributed Systems, Agents, SaaS
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Most agent bugs are invisible: the agent loops, drops context or calls a tool it shouldn't, and all you see is a wrong answer. I wrote an agent harness from scratch in Python — loop control, context compaction, permissioned tools, sub-agents — and Harness Studio, a web app that...
Upload a PDF and ask questions about it. Answers stream in as they are written, grounded in the document, while a web-search tool running over MCP gives a second answer from the web. Each browser session keeps its own files and conversation, and a voice mode lets you ask out...
