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IAM Policy Complexity Calculator

IAM Policy Complexity Calculator MCP Connector for Claude

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Deterministic AWS IAM policy size and complexity analyzer.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner
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This MCP server provides a suite of tools to analyze AWS Identity and Access Management (IAM) configurations. It allows AI agents to calculate exact policy byte sizes using analyze_policy_structure, verify if users, roles, or groups have exceeded policy attachment limits with check_entity_limits, simulate access decisions via simulate_access, and monitor account-wide capacity with audit_account_capacity. It helps ensure IAM policies stay within character limits and adhere to AWS governance rules.

iamawssecuritypolicycompliance

4 tools expose this connector's capabilities to your AI agent.

check_entity_limits

Determine if an IAM entity has exceeded its allowed number of attached managed or inline policies

analyze_policy_structure

Calculate the exact byte size of a provided IAM policy and check if it violates character-based constraints

audit_account_capacity

Check if the AWS account is approaching its cumulative limits for managed policies

simulate_access

Simulate the outcome of a specific action request based on the hierarchy of IAM evaluation logic

See how to talk to your AI agent using IAM Policy Complexity Calculator.

Calculate the size of this IAM policy: [{"Effect": "Allow", "Action": "s3:*", "Resource": "*"}]

The total size of the provided policy is 62 bytes, which is well within the limits.

Will a user with an explicit deny on s3:PutObject be allowed to upload a file?

No, the action is denied because an explicit deny always overrides an explicit allow in the IAM evaluation logic.

Check if a role with 12 managed policies is over the limit.

Yes, the role is over the limit. Users and roles are restricted to a maximum of 10 managed policies.

You can use the `analyze_policy_structure` tool to calculate the exact byte size of your policy statements and check for limit violations.

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