Claude Code is leaking its own build commentary into the features it ships.

A 156-upvote r/ClaudeAI thread documents Claude Code writing meta-commentary about the process of building a feature directly into that feature's user-facing output, described as a "word salad bonanza" surviving into shipped UI (r/ClaudeAI). This is distinct from the usual verbosity complaints. The model is not failing the task, it is failing to separate its narration from its artifact. For unattended agents this is the class of defect a passing test suite never catches, and it argues for a rendered-output review step rather than a diff-only one.