Scan items in a DynamoDB table
AI agents call dynamodb_item_scan to retrieve information from AWS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Scan is a read-only operation that retrieves items from a table. However, severity is elevated to medium rather than low because: (1) scans can retrieve sensitive data at scale depending on table contents and access controls, and (2) unfiltered scans on large tables can consume significant throughput capacity, potentially impacting system availability if misused by an agent.
From the tool's definition Tool name 'scan' and description 'Scan items in a DynamoDB table' indicate data retrieval without modification. DynamoDB scan operations retrieve/query data with no side effects.
Attacks that exploit this kind of access
Scan items in a DynamoDB table. It is categorised as a Read tool in the AWS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP Server MCP server in PolicyLayer and add a rule for dynamodb_item_scan: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AWS MCP Server. Nothing to install.
dynamodb_item_scan is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the dynamodb_item_scan rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for dynamodb_item_scan. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
dynamodb_item_scan is provided by the AWS MCP Server MCP server (rishikavikondala/mcp-server-aws). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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