gsc_zero_data_sites
ONE-CALL project health triage: which GSC-bound sites have NO search data at all, which stopped getting data, and which have a BROKEN data sync. Reads the local snapshot store — instant, no Google quota. Buckets, worst→best: sync_error (the SYSTEM cannot read data — a platform-side problem; tell ...
This record as markdown: /tools/a3plus-mcp/gsc-zero-data-sites.md
What gsc_zero_data_sites does on A3plus
AI agents call gsc_zero_data_sites to retrieve information from A3plus without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
projectId | string | Yes | The A3Plus project ID (list_projects to find it). |
windowDays | number | — | Recent window in days, 7-365. Default 28. |
lowThreshold | number | — | Impressions at/below this in-window = "trickle". Default 50. |
Parameters from the server's own tool schema.
Why gsc_zero_data_sites is rated Low
Even though gsc_zero_data_sites only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs gsc_zero_data_sites safely
PolicyLayer is an MCP gateway: it sits between your AI agents and A3plus, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gsc_zero_data_sites, this is the rule to start with:
gsc_zero_data_sites is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect A3plus, apply this rule, and every gsc_zero_data_sites call is checked against it from then on.
Questions about gsc_zero_data_sites
ONE-CALL project health triage: which GSC-bound sites have NO search data at all, which stopped getting data, and which have a BROKEN data sync. Reads the local snapshot store — instant, no Google quota. Buckets, worst→best: sync_error (the SYSTEM cannot read data — a platform-side problem; tell the user to forward the listed sites+errors to A3Plus support, they cannot fix it themselves), no_data (bound but zero impressions ever — check index_coverage_report for why), stale (had data, zero in the window — worth attention), trickle, active. Use this FIRST when a user asks "哪些站没数据/没效果" — then drill into individual sites with index_coverage_report. It is categorised as a Read tool in the A3plus MCP Server, which means it retrieves data without modifying state.
gsc_zero_data_sites accepts 3 parameters: projectId, windowDays, lowThreshold. Required: projectId. The full parameter table on this page comes from the server's own tool schema.
Register the A3plus MCP server in PolicyLayer and add a rule for gsc_zero_data_sites: 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 A3plus. Nothing to install.
gsc_zero_data_sites 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 gsc_zero_data_sites 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 gsc_zero_data_sites. 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.
gsc_zero_data_sites is provided by the A3plus MCP server (a3plus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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