Preview whether the selected Sanka Buy offers require approval before downstream Purchase Order or checkout steps.
AI agents call preview_buy_approval to retrieve information from Sanka MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool previews approval requirements without actually submitting, creating, or modifying any data. It checks conditions before downstream actions (Purchase Order or checkout), making it a read-only operation. Severity is low since it only retrieves approval status information.
From the tool's definition Preview whether the selected Sanka Buy offers require approval — 'preview' indicates a read/query operation with no side effects
Attacks that exploit this kind of access
Preview whether the selected Sanka Buy offers require approval before downstream Purchase Order or checkout steps. It is categorised as a Read tool in the Sanka MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sanka MCP Server MCP server in PolicyLayer and add a rule for preview_buy_approval: 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 Sanka MCP Server. Nothing to install.
preview_buy_approval 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 preview_buy_approval 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 preview_buy_approval. 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.
preview_buy_approval is provided by the Sanka MCP Server MCP server (sankahq/sanka-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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