Analysis · curated 21 Aug 2026
What is an agent harness (and how do you secure one)?
First reported · updated · 2 reports adversa.ai
Coverage timeline
Why it matters
Agent harnesses concentrate the tools, permissions, and memory that let an LLM take autonomous actions, so defenders who treat the model as the only risk surface miss the scaffolding where real exploit chains and privilege abuse actually occur.
Adversa.ai's explainer "What is an agent harness (and how do you secure one)?" defines the agent harness — the scaffolding of tools, sandboxed execution, planning loops, memory, and permissions that turns an LLM into an autonomous agent — and argues the harness, not the underlying model, is now the critical security surface. The piece synthesizes offensive and defensive implications of agentic AI, citing autonomous exploitation research and the OWASP Top 10 for Agentic Applications, and discusses how to secure the harness layer.