tani_submit · Tani MCP: Risk & Policy

WHAT IT DOES

What tani_submit does on Tani

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

WHY IT NEEDS A POLICY

Why tani_submit needs a policy

tani_submit creates new records in a registry system, which is a reversible write operation. It does not delete data (not Destructive), execute arbitrary code (not Execute), move money (not Financial), or merely read (not Read).

From the tool's definition Tool description explicitly states 'Publish a surface (tool/API/MCP server) to the registry' — this is a create/add operation that modifies the registry state by introducing new indexed entries.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tani_submit Rate-limited

tani_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": {
    "tani_submit": {
      "limits": [
        {
          "counter": "tani_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 Tani, so you can run agents against it safely.

FAQ

Questions about tani_submit

What does the tani_submit tool do? +

Publish a surface (tool/API/MCP server) to the registry for discovery. Lands as indexed/unproven until the prober fleet earns its trust. Requires a registered publisher agent. It is categorised as a Write tool in the Tani MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tani_submit? +

Register the Tani MCP server in PolicyLayer and add a rule for tani_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 Tani. Nothing to install.

What risk level is tani_submit? +

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

Can I rate-limit tani_submit? +

Yes. Add a rate_limit block to the tani_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 tani_submit completely? +

Set action: deny in the PolicyLayer policy for tani_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 tani_submit? +

tani_submit is provided by the Tani MCP server (naylalabs-org/tani-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.