Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
System PromptArea: what it touches
Internal ChangesKind: in v2.1.284,
Internal ChangesSection of the release
What
Non-interactive mode (-p) runs one prompt and prints the result without opening the interactive screen. Its internal code path now accepts an option that adds text to the start of the system prompt, the standing instructions Claude receives. It also records how long loading takes at startup.
Why
This suggests a new way to place text at the head of 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 doubtNo command-line flag or SDK option that sets this new option was found.
