Under the hood
Useful1 Signal2
Two prompt wordings were corrected around subagent types and artifact user identity.
What's wrong with this entry?
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What
Subagent guidance no longer claims that leaving the subagent type out starts a fresh agent; it now says only that other values do. The artifact tool description attributes the current user id to the page's user capability rather than to a specific function call.
Evidence
Other subagent_type values start fresh agents with no context.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.