apply_all_fixes · Supabase Security MCP: Risk & Policy

WHAT IT DOES

What apply_all_fixes does on Supabase Security

AI agents use apply_all_fixes to create or update resources in Supabase Security — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Supabase Security environment.

WHY IT NEEDS A POLICY

Why apply_all_fixes needs a policy

An AI agent can call apply_all_fixes faster than any human can review — one bad instruction and it creates or modifies resources in Supabase Security by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_all_fixes Rate-limited

apply_all_fixes stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "apply_all_fixes": {
      "limits": [
        {
          "counter": "apply_all_fixes_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Supabase Security, so you can run agents against it safely.

FAQ

Questions about apply_all_fixes

What does the apply_all_fixes tool do? +

Bulk-apply all SQL fixes from last audit, optionally filtered by severity. Wraps everything in a single transaction — if any statement fails, everything rolls back. Always preview the count and list before confirming. It is categorised as a Write tool in the Supabase Security MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apply_all_fixes? +

Register the Supabase Security MCP server in PolicyLayer and add a rule for apply_all_fixes: 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 Supabase Security. Nothing to install.

What risk level is apply_all_fixes? +

apply_all_fixes is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit apply_all_fixes? +

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

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

apply_all_fixes is provided by the Supabase Security MCP server (perufitlife/supabase-security-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.