Google Trends interest over time for 1-5 keywords. Compare search interest.
Part of the Newsoracle server.
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AI agents call trend_over_time to retrieve information from Newsoracle 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 trend_over_time 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": {
"trend_over_time": {}
}
}See the full Newsoracle policy for all 9 tools.
These attack patterns abuse exactly the kind of access trend_over_time 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.
Google Trends interest over time for 1-5 keywords. Compare search interest.. It is categorised as a Read tool in the Newsoracle MCP Server, which means it retrieves data without modifying state.
Register the Newsoracle MCP server in PolicyLayer and add a rule for trend_over_time: 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 Newsoracle. Nothing to install.
trend_over_time 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 trend_over_time 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 trend_over_time. 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.
trend_over_time is provided by the Newsoracle MCP server (https://tooloracle.io/news/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Newsoracle tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.