AI agents call get_corporate_actions to retrieve information from Borsa MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves financial market data (corporate actions on BIST exchange) without any capability to create, modify, delete, or execute transactions. It is purely informational/analytical in nature, consistent with sibling tools like get_dividends, get_earnings, and get_financial_statements which are all read operations.
From the tool's definition Tool name 'get_corporate_actions' and description 'Get BIST corporate actions' indicates data retrieval only. Fetches historical/current information about capital increases, IPOs, and dividends with no modification capability.
Attacks that exploit this kind of access
Get BIST corporate actions: capital increases (bedelli/bedelsiz), IPOs, dividends. Batch up to 10. It is categorised as a Read tool in the Borsa MCP MCP Server, which means it retrieves data without modifying state.
Register the Borsa MCP server in PolicyLayer and add a rule for get_corporate_actions: 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 Borsa MCP. Nothing to install.
get_corporate_actions 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_corporate_actions 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_corporate_actions. 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_corporate_actions is provided by the Borsa MCP server (saidsurucu/borsa-mcp). 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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