Under the hood
System prompt assembly no longer takes additionalWorkingDirectories as its own parameter
What
The function that builds the system prompt (the instructions Claude Code sends to the model at the start of a conversation) no longer accepts additionalWorkingDirectories as a separate, explicit parameter, and no longer passes it that way into the underlying prompt-builder.
Why
This is an internal refactor of how extra working directories reach the system prompt. The finding does not indicate that the information about additional working directories is lost, only that it is no longer threaded through this particular parameter.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Whether additional working directories are still communicated to the prompt builder by another means is not stated.