Fetches all leads for a lead form and writes them to a
AI agents use meta_ads_leads_export_csv to create or update resources in Mureo — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mureo environment.
This tool retrieves lead data from Meta Ads and exports it to a file (CSV format). While the primary action is reading leads from Meta Ads, the defining operation is writing/exporting that data to persistent storage. This is a Write operation because it creates a new file artifact.
From the tool's definition Tool name includes 'export_csv' and description states 'writes them to' — indicates data output/export operation that creates or modifies a file. Interacts with Meta Ads lead data and generates a CSV artifact.
Documented attack patterns abuse exactly the kind of access meta_ads_leads_export_csv gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mureo, and nothing reaches the server without passing your rules. This is the rule we recommend for meta_ads_leads_export_csv:
{
"version": "1",
"default": "deny",
"tools": {
"meta_ads_leads_export_csv": {
"limits": [
{
"counter": "meta_ads_leads_export_csv_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}meta_ads_leads_export_csv stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Fetches all leads for a lead form and writes them to a. It is categorised as a Write tool in the Mureo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mureo MCP server in PolicyLayer and add a rule for meta_ads_leads_export_csv: 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 Mureo. Nothing to install.
meta_ads_leads_export_csv is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the meta_ads_leads_export_csv 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 meta_ads_leads_export_csv. 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.
meta_ads_leads_export_csv is provided by the Mureo MCP server (logly/mureo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mureo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
185 Mureo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.