agents.buttonscli.com
Agent Harness Guides
Two technical deep-dives into how AI coding agent harnesses work —
from internal architecture to file editing mechanics.
Agent Harness Field Guide
Architecture deep-dives into 20+ coding agents: tool systems, model plumbing, MCP handling, shell execution, and tradeoffs.
How Agent Harnesses Edit Files
The 6 editing methods agents use — from whole-file replacement to cryptographic hash-anchors — plus prompts, fallbacks, and DIY code.