# Limitations
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Cedar policies and the current Amazon Bedrock AgentCore Gateway implementation have certain limitations that affect policy authoring and functionality.

## Cedar language limitations
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The following limitations are inherent to the Cedar policy language:
+  **No floating-point numbers** - Cedar does not support float types. Use Decimal for fractional values (limited to 4 decimal places)
+  **No regular expressions** - Pattern matching is limited to the like operator with \$1 wildcards

## Current implementation limitations
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The following limitations are specific to the current Amazon Bedrock AgentCore Gateway implementation:
+  **Custom claims in NL2Cedar** - to use custom claims with NL2Cedar, provide the custom claims in the prompt
+  **Limited decimal precision** - Decimal values are limited to 4 decimal places and a specific range
+  **Max policy size** - 10 KB per individual policy
+  **Max total policy size per resource** - 200 KB combined across all policies per resource within a policy engine
+  **Cedar schema size** - supported schemas size under 100 KB
+  **Max Policies per Engine** - 1,000
+  **Max Policy Engines per account** - 1,000

These implementation limitations may be addressed in future releases.