List all stored compressed items with their keys, sizes, and compression ratios.
AI agents call list to retrieve information from Mcp Compress without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries stored compressed items' metadata (keys, sizes, compression ratios). It is informational only—no data is created, modified, deleted, or executed. The blast radius of misuse is minimal; an agent can only over-query or enumerate the compression store, which poses no destructive or financial risk. This fits the Read category definition: 'retrieves or queries data; no side effects.'
From the tool's definition Tool name 'list' and description 'List all stored compressed items with their keys, sizes, and compression ratios' indicate a data retrieval operation with no side effects.
Attacks that exploit this kind of access
List all stored compressed items with their keys, sizes, and compression ratios. It is categorised as a Read tool in the Mcp Compress MCP Server, which means it retrieves data without modifying state.
Register the Mcp Compress MCP server in PolicyLayer and add a rule for list: 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 Mcp Compress. Nothing to install.
list 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 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. 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 is provided by the Mcp Compress MCP server (shipitandpray/mcp-compress). 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.
Teams ship this data inside their own products. See what a licence covers →