Get current deals, coupons, and exclusive affiliate offers for utilities at a Texas address — use when the user wants the best available price, not just any provider. Use when the user says 'what's the cheapest electricity deal in Dallas right now', 'any promotions for internet at my new Houston ...
Part of the Utilify server.
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AI agents call get_promotions to retrieve information from Utilify 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 get_promotions 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": {
"get_promotions": {}
}
}See the full Utilify policy for all 8 tools.
These attack patterns abuse exactly the kind of access get_promotions 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.
Get current deals, coupons, and exclusive affiliate offers for utilities at a Texas address — use when the user wants the best available price, not just any provider. Use when the user says 'what's the cheapest electricity deal in Dallas right now', 'any promotions for internet at my new Houston apartment', or 'find me a coupon before I sign up for my move-in'. Returns active promotions with discount details, expiration dates, and whether each offer is exclusive to Utilify; filter by utility_types or provider_slugs to narrow. Promotions are TDU-aware for electricity — only deals from REPs that actually serve the address are returned. Always pass address (or at least the ZIP) so the filter applies; calling this without an address returns a generic statewide list that may include un-buyable offers.. It is categorised as a Read tool in the Utilify MCP Server, which means it retrieves data without modifying state.
Register the Utilify MCP server in PolicyLayer and add a rule for get_promotions: 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 Utilify. Nothing to install.
get_promotions 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_promotions 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_promotions. 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_promotions is provided by the Utilify MCP server (https://utilify.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 Utilify tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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