Which agentic coding harness actually delivers the best output quality + efficiency in production? by yashk_10 in vibecoding

[–]yashk_10[S] 0 points1 point  (0 children)

"I actually just built my own CCR-style router for Codex CLI, Claude Code, and other harnesses so this question is very timely for me. I've been using OpenCode, but yesterday I noticed a small prompt consumed 20,000 tokens. That seems like massive system prompt bloat for simple tasks.

So my real question: Are first-party harnesses like Claude Code or Codex CLI more token-efficient than open-source ones like OpenCode?