What
Claude's replies arrive as a stream of small pieces. If one piece announces the start of a new block of content but contains no actual content, Claude Code now stops with the error "Stream event unreadable" and records the problem. Before, it carried on with the broken block.
Why
If a proxy or gateway between you and the API corrupts a reply, you should get a clear error rather than a confusing crash later.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Whether Claude Code retries the request after this error is not clear.