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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

New wire_tool_inputs field for replaying API-original tool inputs

Assistant metadata can hold the API's original tool inputs so replayed history echoes calls exactly as emitted.

TierUnder the hoodhow much it should matter to you
Useful3my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaSessionswhat it touches
KindInternal Changesin v2.1.257,
Under the hood No documentation found

Assistant metadata can hold the API's original tool inputs so replayed history echoes calls exactly as emitted.

Assistant message wrapper metadata can now carry a wire_tool_inputs field holding the original, API-produced tool_use inputs keyed by tool_use id, separate from the client-normalized input in message.content. This lets replayed conversation history echo tool calls back exactly as the API emitted them.

Read from
Names in the bundlewire_tool_inputs

See this entry in the whole of v2.1.257 →

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