How to Use Claude Code with Different AWS Roles for S3 Access?

Could you clarify how you're currently implementing Claude? I use it both at home and work, but I’m not quite connecting it to the S3 permissions issue you're facing. Are you working with a Bedrock setup or something similar?

You might be missing that the Claude Code principal (role A) must have permission to assume role B. Check the AWS documentation on managing IAM roles for more details.

How are you using S3 in your setup? Generally, access isn’t restricted to a single IAM role. Any role with the proper policy should suffice as long as there aren’t specific deny rules in place.

You can try telling it to execute with `AWS_PROFILE=`. Most tools should recognize that. If it doesn't work, you might need to write a script that wraps those calls with the correct AssumeRole settings in the environment.

The block you’re encountering should show up in your AWS log files. It sounds like the issue may be due to insufficient permissions. Make sure the role you’re using has the right access to S3.