otp_share_guard
Detects requests to reveal sensitive authentication credentials such as OTPs, UPI PINs, CVVs, passwords and verification codes. Returns an explainable fraud-risk warning.
This record as markdown: /tools/nitrostack/otp-share-guard.md
What otp_share_guard does on Nitrostack
AI agents call otp_share_guard to retrieve information from Nitrostack without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why otp_share_guard is rated Low
Tool analyzes and warns about credential exposure risks without executing transactions or modifying data.
From the tool's definition Detects requests, returns fraud-risk warning, no data modification.
Attacks that exploit this kind of access
The rule that runs otp_share_guard safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nitrostack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For otp_share_guard, this is the rule to start with:
otp_share_guard 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 Nitrostack, apply this rule, and every otp_share_guard call is checked against it from then on.
Questions about otp_share_guard
Detects requests to reveal sensitive authentication credentials such as OTPs, UPI PINs, CVVs, passwords and verification codes. Returns an explainable fraud-risk warning. It is categorised as a Read tool in the Nitrostack MCP Server, which means it retrieves data without modifying state.
Register the Nitrostack MCP server in PolicyLayer and add a rule for otp_share_guard: 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 Nitrostack. Nothing to install.
otp_share_guard 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 otp_share_guard 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 otp_share_guard. 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.
otp_share_guard is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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