sorted_set_range_by_lex
Get range of members by lexicographical order. Args: key: The name of the key min_lex: Minimum value (inclusive) max_lex: Maximum value (inclusive) reverse: Return results in reverse order offset: Number of members to skip count: Maximum number of members to return Returns: List of members or err...
This record as markdown: /tools/aws/sorted-set-range-by-lex.md
What sorted_set_range_by_lex does on AWS
AI agents call sorted_set_range_by_lex to retrieve information from AWS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why sorted_set_range_by_lex is rated Low
This tool retrieves a range of members from a sorted set based on lexicographical ordering. It only reads data with no side effects, supporting pagination and ordering parameters but making no modifications.
From the tool's definition Get range of members by lexicographical order
Attacks that exploit this kind of access
The rule that runs sorted_set_range_by_lex safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AWS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sorted_set_range_by_lex, this is the rule to start with:
sorted_set_range_by_lex is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect AWS, apply this rule, and every sorted_set_range_by_lex call is checked against it from then on.
Questions about sorted_set_range_by_lex
Get range of members by lexicographical order. Args: key: The name of the key min_lex: Minimum value (inclusive) max_lex: Maximum value (inclusive) reverse: Return results in reverse order offset: Number of members to skip count: Maximum number of members to return Returns: List of members or error message. It is categorised as a Read tool in the AWS MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP server in PolicyLayer and add a rule for sorted_set_range_by_lex: 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. Nothing to install.
sorted_set_range_by_lex 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 sorted_set_range_by_lex 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 sorted_set_range_by_lex. 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.
sorted_set_range_by_lex is provided by the AWS MCP server (@awslabs/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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