Why Context Should Outlive Your Harness: A 2026 Checklist for Swapping Claude Code, Codex, and Hermes

In 12 months most teams will change agent harness at least once. This is the practical checklist for what belongs to the harness and what belongs to the context layer.

Cursor to Claude Code to Codex to “we’re piloting Hermes”: the mechanics of the swap usually are easy. Install a new CLI, point it at the repo, copy over a couple of instruction files, re-add your MCP servers.

Read the full article: https://www.puppyone.ai/en/blog/why-context-should-outlive-your-harness

• URL: https://www.puppyone.ai/en/blog/why-context-should-outlive-your-harness
• Owner Name: Steve Mu
• Owner Email: support@puppyone.ai
• Meta Keywords:

  agent harness, context layer, Claude Code, Codex, Hermes

• Meta Description:

  In 12 months most teams will change agent harness at least once. A practical checklist for what belongs to the harness and what belongs to the context layer.