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[FEATURE] Support for Sonnet 4.5 memory tool and context management features #965

@massi-ang

Description

@massi-ang

Problem Statement

Sonnet 4.5 introduces a built-in memory management tool (tool calling) and context editing features.
Strands should support enabling this tools via configuration and provide a mechanism to implement the memory tool.

An example on how it works is shown here https://github.com/aws-samples/anthropic-on-aws/blob/main/notebooks/claude_memory_features/claude_memory_tutorial.ipynb

Note that only InvokeModel API is supported for this feature and not the Converse API.

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Use Case

Native integration with Claude Sonnet 4.5 features

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