list_agent_runtime_versions
AI agents call list_agent_runtime_versions 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 pattern 'list_*' is a strong indicator of a Read operation that retrieves or enumerates existing data. Without a description, we rely on naming conventions; 'list_agent_runtime_versions' most likely queries available runtime versions in ElastiCache/MemoryDB, returning metadata without side effects. This carries low severity as it only exposes informational data about system versions.
From the tool's definition Tool name 'list_agent_runtime_versions' indicates a listing/querying operation that retrieves information about available agent runtime versions. The 'list' prefix strongly suggests data retrieval without modification.
Attacks that exploit this kind of access
list_agent_runtime_versions. 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 list_agent_runtime_versions: 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.
list_agent_runtime_versions 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 list_agent_runtime_versions 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 list_agent_runtime_versions. 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.
list_agent_runtime_versions 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.