Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
System PromptArea: what it touches
Internal ChangesKind: in v2.1.286,
Internal ChangesSection of the release
What
The system prompt is the set of instructions Claude Code gives the model before your messages. When Claude Code splits it into parts, it sends usage reports: whether it found the marker between parts, whether that marker was missing, and whether it used tool-based caching. These reports used to always be sent. Code that splits the prompt can now ask for them to be skipped.
Why
This cuts repeated reports from code other than the main session that also splits the system prompt.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear which parts of Claude Code ask to skip these reports.
