Description

Adds AWS Bedrock configuration examples to .env.example to help new users configure AWS Bedrock models.

Motivation

The codebase currently supports AWS Bedrock through ChatAWSBedrock and ChatAnthropicBedrock classes, but the .env.example file doesn't include any AWS Bedrock configuration examples. This makes it difficult for new users to know which environment variables are needed and how to configure them.

Changes

• Added AWS Bedrock configuration section with all required environment variables:
  • AWS_ACCESS_KEY_ID
  • AWS_SECRET_ACCESS_KEY
  • AWS_SESSION_TOKEN (marked as optional for temporary credentials)
  • AWS_REGION (with note about AWS_DEFAULT_REGION alternative)
• Included helpful comments about:
  • Installation requirements (pip install browser-use[aws])
  • AWS Bedrock access and permissions requirements
  • When session token is needed

Testing

• Verified the environment variables match those used in browser_use/llm/aws/chat_bedrock.py and browser_use/llm/aws/chat_anthropic.py
• Confirmed consistency with the example in examples/models/aws.py

Related Files

• Implementation: browser_use/llm/aws/chat_bedrock.py
• Implementation: browser_use/llm/aws/chat_anthropic.py
• Example usage: examples/models/aws.py

Checklist

• Documentation updated
• Changes are consistent with existing code
• Follows project's formatting conventions

Summary by cubic

Add AWS Bedrock configuration examples to .env.example to simplify setup for Bedrock models. Includes AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, optional AWS_SESSION_TOKEN, AWS_REGION, plus notes on installing browser-use[aws] and required Bedrock access/permissions.

^{Written for commit d9ff851. Summary will update automatically on new commits.}