CLAUDE LABJP
DEFAULT — Sonnet 5 is now the default model for Pro, Team Standard, and Enterprise seats, with a native 1M-token context window and adaptive thinking on by defaultREWIND — The /rewind command can now restore a conversation after /clear. At a checkpoint you choose whether to roll back the code, the conversation, or bothORGDEFAULT — Organization default models are supported. When you have not picked a model yourself, /model shows it as Org default or Role defaultATTACH — File attachments in chat are now clickable. Cmd or Ctrl-click reveals the file in Finder or ExplorerBASH — Bash mode gained live file path autocomplete, and auto mode now spells out the reason when it declines an actionEXPIRE — The claim window for the $100 promotional credit closed on August 2. Credits already claimed expire September 17, so any evaluation run needs to sit inside that windowDEFAULT — Sonnet 5 is now the default model for Pro, Team Standard, and Enterprise seats, with a native 1M-token context window and adaptive thinking on by defaultREWIND — The /rewind command can now restore a conversation after /clear. At a checkpoint you choose whether to roll back the code, the conversation, or bothORGDEFAULT — Organization default models are supported. When you have not picked a model yourself, /model shows it as Org default or Role defaultATTACH — File attachments in chat are now clickable. Cmd or Ctrl-click reveals the file in Finder or ExplorerBASH — Bash mode gained live file path autocomplete, and auto mode now spells out the reason when it declines an actionEXPIRE — The claim window for the $100 promotional credit closed on August 2. Credits already claimed expire September 17, so any evaluation run needs to sit inside that window
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API & SDK/2026-06-14Advanced

Making Claude Agent SDK Tools Idempotent — Stopping Double Execution with Deterministic Keys and an Outbox

An implementation log for stopping a Claude Agent SDK retry or session resume from processing the same payment twice. Three patterns — deterministic idempotency keys, an outbox, and a lightweight wrapper — with runnable code and production metrics.