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