PostgreSQL_get_wait_events

Get current wait events from active sessions.

SERVERPostgres SOURCEmukul975/postgres-mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mukul975-postgres-mcp-server/postgresql-get-wait-events.md

WHAT IT DOES

What PostgreSQL_get_wait_events does on Postgres

AI agents call PostgreSQL_get_wait_events to retrieve information from Postgres without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why PostgreSQL_get_wait_events is rated Low

This tool retrieves diagnostic information about database session wait events for monitoring and analysis purposes. It has no side effects—it reads system metrics from PostgreSQL's internal session tracking. The blast radius of misuse is minimal; exposing wait event data could leak information about query patterns but cannot modify, delete, or execute operations. Classified as Read with low severity.

From the tool's definition Tool name 'get_wait_events' and description 'Get current wait events from active sessions' indicate data retrieval with no modification capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs PostgreSQL_get_wait_events safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Postgres, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For PostgreSQL_get_wait_events, this is the rule to start with:

PostgreSQL_get_wait_events Allowed

PostgreSQL_get_wait_events is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "PostgreSQL_get_wait_events": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Postgres, apply this rule, and every PostgreSQL_get_wait_events call is checked against it from then on.

FAQ

Questions about PostgreSQL_get_wait_events

What does the PostgreSQL_get_wait_events tool do? +

Get current wait events from active sessions. It is categorised as a Read tool in the Postgres MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on PostgreSQL_get_wait_events? +

Register the Postgres MCP server in PolicyLayer and add a rule for PostgreSQL_get_wait_events: 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.

What risk level is PostgreSQL_get_wait_events? +

PostgreSQL_get_wait_events is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit PostgreSQL_get_wait_events? +

Yes. Add a rate_limit block to the PostgreSQL_get_wait_events 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.

How do I block PostgreSQL_get_wait_events completely? +

Set action: deny in the PolicyLayer policy for PostgreSQL_get_wait_events. 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.

What MCP server provides PostgreSQL_get_wait_events? +

PostgreSQL_get_wait_events 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.

KEEP EXPLORING

What PostgreSQL_get_wait_events does on Postgres

Why PostgreSQL_get_wait_events is rated Low

The rule that runs PostgreSQL_get_wait_events safely

Questions about PostgreSQL_get_wait_events

More on Postgres, and thousands of servers like it.