restore_validate

THE RISK

Low Risk

Why restore_validate needs a policy

The tool 'validates' readiness, which implies a read/check operation — inspecting current database state without performing the actual restore. However, 'validation' in restore contexts can sometimes involve preparatory writes or state changes, lowering confidence. The description is minimal and does not confirm pure read-only behavior.

From the tool's definition Validate database readiness for restore operations

Documented attack patterns abuse exactly the kind of access restore_validate gives an agent:

POLICY

How to control restore_validate

PolicyLayer is an MCP gateway — it sits between your AI agents and Postgres Mcp Legacy, and nothing reaches the server without passing your rules. This is the rule we recommend for restore_validate:

policy.json

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

restore_validate is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Postgres Mcp Legacy — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about restore_validate

What does the restore_validate tool do? +

Validate database readiness for restore operations. It is categorised as a Read tool in the Postgres Mcp Legacy MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on restore_validate? +

Register the Postgres Mcp Legacy MCP server in PolicyLayer and add a rule for restore_validate: 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 Mcp Legacy. Nothing to install.

What risk level is restore_validate? +

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

Can I rate-limit restore_validate? +

Yes. Add a rate_limit block to the restore_validate 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 restore_validate completely? +

Set action: deny in the PolicyLayer policy for restore_validate. 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 restore_validate? +

restore_validate is provided by the Postgres Mcp Legacy MCP server (neverinfamous/postgres-mcp-legacy). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Postgres Mcp Legacy tool call.

Start from Postgres Mcp Legacy, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →