22 tools. 0 can modify or destroy data without limits.
Read-only server. Low risk, but rate limits prevent runaway API costs.
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Even read-only tools carry cost. An agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up bills.
analyze_canary_failures:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
The CloudWatch Application Signals MCP Server server is primarily read-only with 22 read tools. While it cannot modify data, an agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up costs. Rate limiting is still recommended.
22 tools across 1 categories: Read. 22 are read-only. 0 can modify, create, or delete data.
One line change. Instead of running the CloudWatch Application Signals MCP Server server directly, prefix it with Intercept: intercept -c cloudwatch-application-signals-mcp-server.yaml -- npx -y @awslabs.cloudwatch-applicationsignals-mcp-server. Download a pre-built policy from policylayer.com/policies/cloudwatch-application-signals-mcp-server and adjust the limits to match your use case.
Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.