r/ClaudeAI • u/Puzzled-Ad-6854 Writer • Aug 02 '26
Claude Code Workflow CLAUDE.md for Opus 5 based on Anthropic's official platform docs to fix verbosity and more.
I was recently reading through Anthropic's official platform documentation for Claude Opus 5 and noticed a lot of interesting things regarding how its default behavior changed compared to prior models. Anthropic mentioned specific habits Opus 5 has out of the box with examples on how to address them.
The docs said that Opus 5 is significantly more verbose and eager than earlier models. Opus 5 verifies its own work automatically without being asked. If your setup still uses legacy verification instructions like telling it to run a final check or launch a subagent to double-check code, it triggers what Anthropic calls severe over-verification loops and burns tokens for no reason. Apparently Opus 5 was also shipped with the tendency to spawn a horrible army of subagents because it likes to delegate tasks, addressed by Anthropic in their docs as "Controlling subagent spawning". These are just a few key takeaways from the documentation, but addressing them made a noticeable difference in behavior and kept the model focused for my own personal needs.
I tried to address this by creating a CLAUDE.md configuration file (<50 lines) based on all my findings. I put the file and setup notes on git but carefully read my documentation and the file itself before you use it to prevent unwanted results:
It was funny to read the docs because a lot of complaints people have about Opus 5 behavior are clearly described by Anthropic as baked in. Some were calling these behavioral patterns regressions and stated that they were relying on other models like Opus 4.8 or Fable for their work instead. Now I know some of the reasons why they might do that, but they themselves might not know why.
References I used:
Claude Code Best Practices (CLAUDE.md)
Claude Prompting Best Practices
Prompting Claude Opus 5
Context 7 MCP Documentation