AWS just made the case for deterministic policy at the MCP gateway
AWS built AgentCore Policy on Cedar: deterministic authorisation at the MCP gateway, outside the LLM loop. The architecture PolicyLayer ships.
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Aws
2 posts
One Tool Call Away From a $10,000 AWS Bill
The AWS MCP server exposes 55 tools for EC2, S3, Lambda, and RDS. Here's how to block destructive operations and rate limit resource creation.