Analyze database activity patterns during typical maintenance windows.
AI agents call PostgreSQL_maintenance_window_activity to retrieve information from Postgres without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a diagnostic/monitoring tool that queries database state to understand activity trends. It retrieves information about when and how the database is used, supporting maintenance planning. No side effects, no data modification, no code execution, no financial impact. Classified as Read.
From the tool's definition Tool analyzes (reads) database activity patterns during maintenance windows—no modifications, deletions, or external operations. Description uses 'Analyze' and 'activity patterns', indicating data retrieval and inspection only.
Documented attack patterns abuse exactly the kind of access PostgreSQL_maintenance_window_activity gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Postgres, and nothing reaches the server without passing your rules. This is the rule we recommend for PostgreSQL_maintenance_window_activity:
{
"version": "1",
"default": "deny",
"tools": {
"PostgreSQL_maintenance_window_activity": {}
}
}PostgreSQL_maintenance_window_activity is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Analyze database activity patterns during typical maintenance windows. It is categorised as a Read tool in the Postgres MCP Server, which means it retrieves data without modifying state.
Register the Postgres MCP server in PolicyLayer and add a rule for PostgreSQL_maintenance_window_activity: 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 Postgres. Nothing to install.
PostgreSQL_maintenance_window_activity 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 PostgreSQL_maintenance_window_activity 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 PostgreSQL_maintenance_window_activity. 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.
PostgreSQL_maintenance_window_activity is provided by the Postgres MCP server (mukul975/postgres-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Postgres, 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.
239 Postgres tools catalogued and risk-classified — across an index of 43,000+ MCP servers.