describe_supported_languages
AI agents call describe_supported_languages to retrieve information from Awslabs Valkey without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name and 'describe_' prefix indicate it retrieves information about supported languages without modifying, executing, or destroying anything. Despite the empty description lowering confidence slightly, the naming convention strongly suggests a read-only operation. No financial, destructive, or execute-like implications are evident.
From the tool's definition Tool name 'describe_supported_languages' with empty description; follows a query pattern consistent with listing or retrieving supported language metadata from the ElastiCache/Valkey service.
Attacks that exploit this kind of access
describe_supported_languages. It is categorised as a Read tool in the Awslabs Valkey MCP Server, which means it retrieves data without modifying state.
Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for describe_supported_languages: 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 Awslabs Valkey. Nothing to install.
describe_supported_languages 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 describe_supported_languages 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 describe_supported_languages. 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.
describe_supported_languages is provided by the Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.