AI agents use buy-stock to commit financial operations through KiteMCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly executes real financial transactions by purchasing stocks on Zerodha. It commits financial obligations immediately upon invocation. Misuse by an AI agent could result in unauthorized or unintended stock purchases with real monetary consequences, making it critical severity under the Financial category.
From the tool's definition "Buy the stock using Zerodha. It executes the real order immediately." — places real stock purchase orders on Zerodha
Attacks that exploit this kind of access
Buy the stock using Zerodha. It executes the real order immediately.It expects the stock name and quantity. It is categorised as a Financial tool in the KiteMCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Kite MCP server in PolicyLayer and add a rule for buy-stock: 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 KiteMCP. Nothing to install.
buy-stock is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the buy-stock 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 buy-stock. 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.
buy-stock is provided by the Kite MCP server (utkarshagar2121/kitemcp). 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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