get_two_factor_secret
Get a two-factor authentication secret and QR code
This record as markdown: /tools/takashito-linode-mcp-server/get-two-factor-secret.md
What get_two_factor_secret does on Linode MCP Server
AI agents call get_two_factor_secret to retrieve information from Linode MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_two_factor_secret is rated Low
This tool retrieves sensitive authentication data (2FA secret and QR code) which are used for account security. While classified as Read (no data modification), the severity is high because exposure of 2FA secrets could compromise account security and enable unauthorized access. The confidence is 0.9 because the description clearly indicates a retrieval operation on security-critical data.
From the tool's definition Tool name 'get_two_factor_secret' and description 'Get a two-factor authentication secret and QR code' indicates retrieval of authentication credentials without modification or deletion.
Attacks that exploit this kind of access
The rule that runs get_two_factor_secret safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Linode MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_two_factor_secret, this is the rule to start with:
get_two_factor_secret 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 Linode MCP Server, apply this rule, and every get_two_factor_secret call is checked against it from then on.
Questions about get_two_factor_secret
Get a two-factor authentication secret and QR code. It is categorised as a Read tool in the Linode MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Linode MCP Server MCP server in PolicyLayer and add a rule for get_two_factor_secret: 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 Linode MCP Server. Nothing to install.
get_two_factor_secret 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 get_two_factor_secret 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 get_two_factor_secret. 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.
get_two_factor_secret is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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