mcp_extension_support
Return typed MCP Tasks and Apps feature detection for this runtime.
This record as markdown: /tools/mcp-control-plane/mcp-extension-support.md
What mcp_extension_support does on Mcp Control Plane
AI agents call mcp_extension_support to retrieve information from Mcp Control Plane without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why mcp_extension_support is rated Low
This tool retrieves capability and feature information about the MCP runtime. It performs no state modifications, executes no external operations, and has no destructive or financial implications. The information retrieved would inform downstream decisions but does not itself modify any data or trigger actions. This is a classic Read category operation with minimal blast radius if misused.
From the tool's definition Tool name 'mcp_extension_support' combined with description 'Return typed MCP Tasks and Apps feature detection for this runtime' indicates a pure information retrieval operation.
Attacks that exploit this kind of access
The rule that runs mcp_extension_support safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Control Plane, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mcp_extension_support, this is the rule to start with:
mcp_extension_support 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 Mcp Control Plane, apply this rule, and every mcp_extension_support call is checked against it from then on.
Questions about mcp_extension_support
Return typed MCP Tasks and Apps feature detection for this runtime. It is categorised as a Read tool in the Mcp Control Plane MCP Server, which means it retrieves data without modifying state.
Register the Mcp Control Plane MCP server in PolicyLayer and add a rule for mcp_extension_support: 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 Control Plane. Nothing to install.
mcp_extension_support 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 mcp_extension_support 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 mcp_extension_support. 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.
mcp_extension_support is provided by the Mcp Control Plane MCP server (albertik322-sudo/mcp-control-plane). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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