List all product categories in the Tonzar catalog with product counts. 15 root categories covering industrial equipment, medical devices, agricultural machinery, transport, electronics, and more.
Risk signalsAdmin/system-level operation
Part of the Tonzar B2B Russian Export Marketplace server.
Free to start. No card required.
AI agents call listCategories to retrieve information from Tonzar B2B Russian Export Marketplace without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though listCategories only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"listCategories": {}
}
}See the full Tonzar B2B Russian Export Marketplace policy for all 5 tools.
These attack patterns abuse exactly the kind of access listCategories gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List all product categories in the Tonzar catalog with product counts. 15 root categories covering industrial equipment, medical devices, agricultural machinery, transport, electronics, and more.. It is categorised as a Read tool in the Tonzar B2B Russian Export Marketplace MCP Server, which means it retrieves data without modifying state.
Register the Tonzar B2B Russian Export Marketplace MCP server in PolicyLayer and add a rule for listCategories: 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 Tonzar B2B Russian Export Marketplace. Nothing to install.
listCategories 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 listCategories 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 listCategories. 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.
listCategories is provided by the Tonzar B2B Russian Export Marketplace MCP server (https://tonzar.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Tonzar B2B Russian Export Marketplace tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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