Detect excessive WAL segment recycling that might indicate tuning issues.
AI agents call PostgreSQL_wal_segment_recycling_analysis 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 monitoring and diagnostic tool for PostgreSQL Write-Ahead Log (WAL) segment behavior. It analyzes existing data to identify potential tuning issues without modifying database state, executing code, or destructive operations. This is a read-only analytical function similar to the sibling tools (analyze_* and check_*) which all perform detection and analysis without side effects.
From the tool's definition Tool name and description indicate detection and analysis only ('Detect excessive WAL segment recycling'). No modification, deletion, execution, or financial operations are described. The verb 'detect' suggests diagnostic inspection of database logs/metrics.
Documented attack patterns abuse exactly the kind of access PostgreSQL_wal_segment_recycling_analysis 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_wal_segment_recycling_analysis:
{
"version": "1",
"default": "deny",
"tools": {
"PostgreSQL_wal_segment_recycling_analysis": {}
}
}PostgreSQL_wal_segment_recycling_analysis 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.
Detect excessive WAL segment recycling that might indicate tuning issues. 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_wal_segment_recycling_analysis: 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_wal_segment_recycling_analysis 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_wal_segment_recycling_analysis 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_wal_segment_recycling_analysis. 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_wal_segment_recycling_analysis 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.