Nothing to try yetTier: how much it should matter to you
4Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ToolsArea: what it touches
In DevelopmentKind: in v2.1.257,
What probably matters to youSection of the release
New logic lets the assistant see tools added or removed mid-conversation via a fresh system turn re-normalized with surfaceLateToolAdditions, instead of only picking up tool changes at the start of a turn. Message normalization gains a toolChangeFallback path and a blocksEligible flag, but the behavior only activates when the beta capability mid_conv_tool_change is included in the request, which itself requires a Statsig-style gate to pass plus per-model eligibility, so it's gated off by default.
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Names in the bundlemid_conv_tool_change
How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: tengu_mossy_lantern
