listFeatures
AI agents call listFeatures to retrieve information from Mcp Docsrs without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
listFeatures appears to list or retrieve feature flags associated with a Rust crate. This is a non-destructive read operation with no side effects. The blast radius of misuse is minimal—an AI agent could only retrieve documentation data. No data modification, deletion, code execution, or financial impact is possible.
From the tool's definition Tool name 'listFeatures' with context of sibling tools (getCrateInfo, getItemDefinition, getItemExamples, searchCrates, searchInCrate) indicates data retrieval.
Attacks that exploit this kind of access
listFeatures. It is categorised as a Read tool in the Mcp Docsrs MCP Server, which means it retrieves data without modifying state.
Register the Mcp Docsrs MCP server in PolicyLayer and add a rule for listFeatures: 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 Docsrs. Nothing to install.
listFeatures 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 listFeatures 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 listFeatures. 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.
listFeatures is provided by the Mcp Docsrs MCP server (shuakami/mcp-docsrs). 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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