upload_contract_template · Sanka MCP Server MCP

WHAT IT DOES

What upload_contract_template does on Sanka MCP Server

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

WHY IT NEEDS A POLICY

Why upload_contract_template needs a policy

This is a Write operation because it creates or modifies data (storing a contract template in Sanka's system) in a reversible way—uploaded templates can presumably be deleted or replaced. It is not Destructive because the operation itself does not irreversibly delete or overwrite data.

From the tool's definition The tool description states it uploads a contract template to Sanka and retains it for later source download. The verb 'upload' and the action of storing a contract template for future use constitutes creating/modifying data in a reversible manner.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upload_contract_template Rate-limited

upload_contract_template 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": {
    "upload_contract_template": {
      "limits": [
        {
          "counter": "upload_contract_template_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about upload_contract_template

What does the upload_contract_template tool do? +

Upload a Contract template to Sanka from base64 PDF, DOC, or DOCX bytes. Word documents are converted to signing PDFs by the Sanka API and retained for later source download. It is categorised as a Write tool in the Sanka MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on upload_contract_template? +

Register the Sanka MCP Server MCP server in PolicyLayer and add a rule for upload_contract_template: 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 Sanka MCP Server. Nothing to install.

What risk level is upload_contract_template? +

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

Can I rate-limit upload_contract_template? +

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

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

upload_contract_template is provided by the Sanka MCP Server MCP server (sankahq/sanka-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.