Commit a transaction by its ID to permanently apply the changes to the database
AI agents call execute_commit to permanently remove resources in PostgreSQL Full Access MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Although commit itself is technically a write operation, in the context of a database system with full DDL/DML/DCL access, committing a transaction can finalize deletions, drops, or other irreversible schema/data changes initiated by other tools. An LLM agent that accidentally commits a destructive transaction cannot undo it without a backup or recovery mechanism.
From the tool's definition execute_commit commits transactions that 'permanently apply the changes to the database'. Combined with sibling tools like execute_dml_ddl_dcl_tcl (which can execute DELETE, DROP, UPDATE, etc.), this tool finalizes potentially irreversible modifications.
Documented attack patterns abuse exactly the kind of access execute_commit gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PostgreSQL Full Access MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for execute_commit:
{
"version": "1",
"default": "deny",
"hide": [
"execute_commit"
]
}execute_commit disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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Commit a transaction by its ID to permanently apply the changes to the database. It is categorised as a Destructive tool in the PostgreSQL Full Access MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the PostgreSQL Full Access MCP Server MCP server in PolicyLayer and add a rule for execute_commit: 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 PostgreSQL Full Access MCP Server. Nothing to install.
execute_commit is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the execute_commit 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 execute_commit. 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.
execute_commit is provided by the PostgreSQL Full Access MCP Server MCP server (syahiidkamil/mcp-postgres-full-access). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from PostgreSQL Full Access MCP Server, 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.
7 PostgreSQL Full Access MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.