What
A tool is an action Claude can take, such as reading a file or running a command. When a tool fails, its error text is wrapped in markup tags. Claude Code now removes those tags before shortening a long error, instead of shortening the wrapped text as it was.
Why
Error text is cleaner, and the tags no longer count toward the length limit, so more of the actual message survives.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear whether the error text Claude itself receives still carries the tags.