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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.269 ·

Tool architecture rework: many built-in tools moved to a create()/runEngine factory pattern

REPL, SendMessage, TaskCreate, TaskUpdate, feedback-draft, Workflow and Bash tools rebuilt on a shared factory pattern

Under the hood Internal Changes
JSON All of v2.1.269
Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Tool ArchitectureArea: what it touches
Internal ChangesKind: in v2.1.269,
Internal ChangesSection of the release
What

Several built-in tools, including the REPL (interactive code execution), SendMessage, TaskCreate, TaskUpdate, the feedback-draft tool, Workflow, and Bash, were restructured from separately defined call/checkPermissions/validateInput methods into a shared create() factory function. This factory produces those methods using a common context object holding things like the session, storage, credentials, and permissions. For the REPL and Workflow tools specifically, execution now goes through an added indirection layer called call.runEngine.

Why

This is an internal architectural change that consolidates how these tools are built and run; it is not expected to change what these tools do from a user's perspective, but it centralizes shared plumbing across them.

See this entry in the whole of v2.1.269 →

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