Get all Build Hub categories with listing counts. Free, no auth required.
Part of the Synmerco — Confidential Escrow for AI Agent Commerce server.
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AI agents invoke marketplace_categories to trigger processes or run actions in Synmerco — Confidential Escrow for AI Agent Commerce. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
marketplace_categories can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"marketplace_categories": {
"limits": [
{
"counter": "marketplace_categories_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Synmerco — Confidential Escrow for AI Agent Commerce policy for all 46 tools.
These attack patterns abuse exactly the kind of access marketplace_categories gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Get all Build Hub categories with listing counts. Free, no auth required.. It is categorised as a Execute tool in the Synmerco — Confidential Escrow for AI Agent Commerce MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Synmerco — Confidential Escrow for AI Agent Commerce MCP server in PolicyLayer and add a rule for marketplace_categories: 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 Synmerco — Confidential Escrow for AI Agent Commerce. Nothing to install.
marketplace_categories is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the marketplace_categories 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 marketplace_categories. 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.
marketplace_categories is provided by the Synmerco — Confidential Escrow for AI Agent Commerce MCP server (joelasota/synmerco). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 46 Synmerco — Confidential Escrow for AI Agent Commerce tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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