58 tools. 12 can modify or destroy data without limits.
3 destructive tools with no built-in limits. Policy required.
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Destructive tools (cancel_logs_insight_query, delete_resource, tf_destroy) permanently delete resources. There is no undo. An agent calling these in a retry loop causes irreversible damage.
Write operations (create_resource, create_table_from_csv, manage_eks_stacks) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
Execute tools (call_aws, execute_log_insights_query, invoke_lambda) trigger processes with side effects. Builds, notifications, workflows — all fired without throttling.
Intercept sits between your agent and AWS. Every tool call checked against your policy before it executes — so your agent can do its job without breaking things.
npx -y @policylayer/intercept scan -- npx -y @awslabs/mcp cancel_logs_insight_query:
rules:
- action: deny Destructive tools should never be available to autonomous agents without human approval.
create_resource:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
analyze_log_group:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
Yes. The AWS server exposes 3 destructive tools including cancel_logs_insight_query, delete_resource, tf_destroy. These permanently remove resources with no undo. Intercept blocks destructive tools by default so they never reach the upstream server.
The AWS server has 6 write tools including create_resource, create_table_from_csv, manage_eks_stacks. Set rate limits in your policy file -- for example, rate_limit: 10/hour prevents an agent from making more than 10 modifications per hour. Intercept enforces this at the transport layer.
58 tools across 1 categories: Read. 46 are read-only. 12 can modify, create, or delete data.
One line change. Instead of running the AWS server directly, prefix it with Intercept: intercept -c aws.yaml -- npx -y @@awslabs/mcp. Download a pre-built policy from policylayer.com/policies/aws and adjust the limits to match your use case.
Set budgets, approvals, and hard limits across MCP servers.
npx -y @policylayer/intercept init