How to Design an OpenHarness Style Agent Runtime with Tools, Memory, Permissions, Skills, and Multi-Agent Coordination

In this tutorial, we build an OpenHarness style agent harness from scratch to see how a practical agent system works. We recreate the core building blocks: tool use, typed tool schemas, permissions, lifecycle hooks, memory, skills, context compaction, retry logic, cost tracking, and multi-agent coordination. We expose the full control flow instead of treating the framework as a black box. We keep everything runnable so we can experiment without API keys or extra infrastructure. The post How to Design an OpenHarness Style Agent Runtime with Tools, Memory, Permissions, Skills, and Multi-Agent Coordination appeared first on MarkTechPost .