Run a real DeepSeek conversation through the built SDK profile and change the scoped tool registry through a model-invoked controller. Compare the first post-addition cache usage with the preceding request after unique user history has been cached; verify deferred declarations, chronological activation, and actual tool execution. Removal remains covered without requiring its cache prefix to survive. Disable test and provider retries so a warmed transition cannot hide a cache regression.
Tianyi Cui
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