iam-policy-simulator

What problem does it solve?

This skill helps users understand and verify if an IAM policy grants or denies access for a specific user to a particular resource and action, preventing unintended access or permission issues.

Core Features & Use Cases

• Policy Evaluation: Determines access based on IAM policy JSON.
• User/Resource Specificity: Checks access for a given user ARN and resource ARN.
• Action Granularity: Can evaluate specific actions or all actions.
• Use Case: Before deploying a new service, a security engineer can use this skill to confirm that a specific IAM role has the necessary permissions to access a designated S3 bucket, but not a restricted one.

Quick Start

Use the iam-policy-simulator skill to check if the user 'arn:aws:iam::123456789012:user/testuser' is allowed to perform the action 's3:GetObject' on the resource 'arn:aws:s3:::my-bucket/public/file.txt' using the provided policy.