SemaClaw: A Step Towards General-Purpose Personal AI Agents through Harness Engineering
Organizations: Midea AIRC
Abstract
The rise of OpenClaw in early 2026 marks the moment when millions of users began deploying personal AI agents into their daily lives, delegating tasks ranging from travel planning to multi-step research. This scale of adoption signals that two parallel arcs of development have reached an inflection point. First is a paradigm shift in AI engineering, evolving from prompt and context engineering to harness engineering-designing the complete infrastructure necessary to transform unconstrained agents into controllable, auditable, and production-reliable systems. As model capabilities converge, this harness layer is becoming the primary site of architectural differentiation. Second is the evolution of human-agent interaction from discrete tasks toward a persistent, contextually aware collaborative relationship, which demands open, trustworthy and extensible harness infrastructure. We present SemaClaw, an open-source multi-agent application framework that addresses these shifts by taking a step towards general-purpose personal AI agents through harness engineering. Our primary contributions include a DAG-based two-phase hybrid agent team orchestration method, a PermissionBridge behavioral safety system, a three-tier context management architecture, and an agentic wiki skill for automated personal knowledge base construction.
Figures & tables
| Mechanism | Primary Engineering Concern | Extension Target | Interface Type |
|---|---|---|---|
| MCP Tools | Tool Use | Agent action space | Typed schema |
| Subagents | Prompt Engineering | Agent reasoning scope | Prompt |
| Skills | Context Engineering | Agent capability | Progressive context injection |
| Hooks | Harness Engineering | Agent execution control | Lifecycle callbacks |
LLM Agent Harnesses
LLM agent harnesses are the software and runtime systems that organize an agent’s tools, context, state, execution, and safeguards.
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