Claude Opus 5 works well for coding, but it breaks Compound Engineering workflows
danshipper · x · 2026-07-25
The thread says Claude Opus 5 is useful at a medium-effort coding level, but it also breaks existing agent workflows such as Compound Engineering.
What changed in practice:
- The model works well when people stop relying on heavy skills and giant prompts.
- In an autonomous flow, it repeatedly returns control to the user, which the author finds annoying.
- The team started rewriting Compound Engineering to fit the new model behavior.
- The author also shared a custom skill for retuning their harness/plugin.
So the takeaway is not just that Opus 5 is stronger, but that agent stacks may need to be redesigned around its behavior.
Related event: Claude Opus 5 Early Tests: Better Efficiency but Overly Proactive(29 posts)→
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