forms_submit · Mcp Bot Crawler MCP: Risk & Policy

WHAT IT DOES

What forms_submit does on Mcp Bot Crawler

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

WHY IT NEEDS A POLICY

Why forms_submit needs a policy

This tool creates or modifies data (form entries in a database) which is reversible Write operation. While the CAPTCHA bypass is concerning from a security standpoint, the primary action is data creation rather than destruction or financial impact. Severity is high because bypassing security controls (CAPTCHA) could enable spam, automated attacks, or unauthorized data injection if misused by an AI agent.

From the tool's definition Tool description explicitly states 'Submit a contact form entry directly into the database' — this creates new data records. The note about bypassing CAPTCHA indicates it modifies system behavior to enable automated submissions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

forms_submit Rate-limited

forms_submit 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": {
    "forms_submit": {
      "limits": [
        {
          "counter": "forms_submit_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 Mcp Bot Crawler, so you can run agents against it safely.

FAQ

Questions about forms_submit

What does the forms_submit tool do? +

Submit a contact form entry directly into the database (bypasses CAPTCHA — use for internal/automation submissions only). It is categorised as a Write tool in the Mcp Bot Crawler MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on forms_submit? +

Register the Mcp Bot Crawler MCP server in PolicyLayer and add a rule for forms_submit: 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 Mcp Bot Crawler. Nothing to install.

What risk level is forms_submit? +

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

Can I rate-limit forms_submit? +

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

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

forms_submit is provided by the Mcp Bot Crawler MCP server (merulocal/hellogrowthcrmwebsite_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.