[BUG] ToolUse not picked up correctly

[kiberonlabsdev]

Checks

• I have updated to the lastest minor and patch version of Strands
• I have checked the documentation and this is not expected behavior
• I have searched ./issues and there are no duplicates of my issue

Strands Version

0.2.2

Node.js Version

v24.11.1

Operating System

Windows 10

Installation Method

pnpm

Steps to Reproduce

When using AWS bedrock as the provider, when a tool use invocation is stored in a session, the contentBlockFromData does not correctly identify the tool use content block as the key toolUse does not exist, however the type does. We expect it to correctly identify the tool use

Expected Behavior

Tooluse blocks identified correctly, no error thrown

Actual Behavior

Throws an error

    message: 'Unknown ContentBlockData type',
    stack: 'Error: Unknown ContentBlockData type\n' +
      '    at contentBlockFromData (<REDACTED>\\node_modules\\.pnpm\\@strands-agents+sdk@0.2.2_@_4fdc0782c8ba8acb774b26fd67f8f25f\\node_modules\\@strands-agents\\sdk\\src\\types\\messages.ts:618:11)\n' 

Additional Context

No response

Possible Solution

Use the data.type =='toolUse' as an alternate check

Related Issues

No response

[kiberonlabsdev]

For context this happened because we stored the messages in storage and tried to recreate an agent. There should likely be a serialize messages function instead

[zastrowm]

There should likely be a serialize messages function instead

Yeah; I see this when implementing snapshots as well; this should be fixed when we implement session-management and/or snapshots