crm_form_upload_file

Upload a file to a contact

SERVER0nmcp SOURCE0nmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-0nork-0nmcp/crm-form-upload-file.md

WHAT IT DOES

What crm_form_upload_file does on 0nmcp

AI agents use crm_form_upload_file to create or update resources in 0nmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 0nmcp environment.

RISK

Why crm_form_upload_file is rated Medium

This tool performs a reversible write operation: it adds a file to a contact in a CRM system. The file can be deleted or replaced, making it a Write rather than Destructive action. Severity is medium because unauthorized file uploads could introduce malware, corrupt records, or expose sensitive data, but the blast radius depends on file validation and CRM access controls.

From the tool's definition Tool name contains 'upload' and description states 'Upload a file to a contact', indicating it creates or modifies data (adds a file attachment to a CRM contact record).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs crm_form_upload_file safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crm_form_upload_file, this is the rule to start with:

crm_form_upload_file Rate-limited

crm_form_upload_file 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": {
    "crm_form_upload_file": {
      "limits": [
        {
          "counter": "crm_form_upload_file_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every crm_form_upload_file call is checked against it from then on.

FAQ

Questions about crm_form_upload_file

What does the crm_form_upload_file tool do? +

Upload a file to a contact. It is categorised as a Write tool in the 0nmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on crm_form_upload_file? +

Register the 0n MCP server in PolicyLayer and add a rule for crm_form_upload_file: 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 0nmcp. Nothing to install.

What risk level is crm_form_upload_file? +

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

Can I rate-limit crm_form_upload_file? +

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

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

crm_form_upload_file is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on 0n, and thousands of servers like it.

This server

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Across the catalogue

write_file on 0sec → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →