The agent harness is the new battleground

Builders are now talking about the stuff around the model, not the model. 'Harness Engineering 101' frames it as the LLM being the brain and the harness the body. A tmux and Claude Code writeup drew people swapping setups: Herdr as a better agent-first terminal, Claude's team mode with tmux, one person locking SSH keys behind a MacBook's Secure Enclave so Claude can't reach remote boxes alone. 'Superlite' pitches itself as a faster alternative to the Superpowers agent framework, and commenters immediately asked the real questions: do parallel agents trample each other's work, and what does the extra parallelism cost in tokens?

The pattern here: orchestration, isolation, and permissions are where the engineering effort is going. A Show HN putting a WhatsApp MCP on Cloudflare for free fits the same mold, and the top reaction was about privacy, not the tech. People are wiring agents into real systems and discovering that sandboxing, keys, and data exposure are the hard parts.

The counterpoint is a quiet fatigue. Several commenters say they built their own harness precisely to avoid depending on someone else's framework, which means the framework layer may stay fragmented for a while.