[BUG] /context command fails with AWS Bedrock

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When running the /context command with AWS Bedrock Claude model (bedrock-claude-4.5-sonnet), the command fails with a 500 error:

  Error: 500 {"error":{"message":"Error calling litellm.acompletion for non-Anthropic model: litellm.UnsupportedParamsError: Bedrock doesn't support tool calling without `tools=` param specified. Pass `tools=`
  param OR set
       `litellm.modify_params = True` // `litellm_settings::modify_params: True` to add dummy tool to the request.","type":"None","param":"None","code":"500"}}

What Should Happen?

The /context command should work correctly with AWS Bedrock models, just as it does with direct Anthropic API models. The command should properly configure the required parameters for Bedrock's tool calling
requirements, either by:

1. Including the tools= parameter when making the API call through litellm, OR
2. Setting litellm.modify_params = True to automatically add a dummy tool to satisfy Bedrock's requirements

The command should execute successfully and provide context information without throwing this UnsupportedParamsError.

Error Messages/Logs

Error: 500 {"error":{"message":"Error calling litellm.acompletion for non-Anthropic model: litellm.UnsupportedParamsError: Bedrock doesn't support tool calling without `tools=` param specified. Pass `tools=` param OR set 
     `litellm.modify_params = True` // `litellm_settings::modify_params: True` to add dummy tool to the request.","type":"None","param":"None","code":"500"}}

Steps to Reproduce

1. Configure Claude Code to use AWS Bedrock model (bedrock-claude-4.5-sonnet)
2. Start a conversation
3. Run /context command
4. Error appears

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.26 (Claude Code)

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_