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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 v2.1.274 ·

Tool-result pairing repair now detects and reports 'misplaced' tool results

Tool-result repair now detects and reports 'misplaced' tool results in debug output

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaTool Usewhat it touches
KindImprovementsin v2.1.274,
Under the hood

Tool-result repair now detects and reports 'misplaced' tool results in debug output

What

The internal pass that repairs mismatched tool calls and their results now includes a check for tool results that are "misplaced." When this happens, the debug information generated (both in telemetry and in the strict-mode error message) now includes a misplaced_tool_results=[...] list for each affected assistant message.

Why

This gives more detail when diagnosing cases where a tool's result got separated from or mismatched with its originating call, making it easier to understand what went wrong in a conversation's transcript.

See this entry in the whole of v2.1.274 →

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