sdk_token_create · Yaver MCP: Risk & Policy

WHAT IT DOES

What sdk_token_create does on Yaver

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

PARAMETERS

Parameter	Type	Required	Description
`label`	string	—	Human-readable name shown in the dashboard.
`scopes`	array	—	e.g. ["feedback","blackbox","voice","builds"]. Omit for defaults.
`expiresInMs`	integer	—	Lifetime in milliseconds. Default: 1 year.
`allowedCIDRs`	array	—	CIDR allowlist (IPv4/IPv6).

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why sdk_token_create needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sdk_token_create Rate-limited

sdk_token_create 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": {
    "sdk_token_create": {
      "limits": [
        {
          "counter": "sdk_token_create_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 Yaver, so you can run agents against it safely.

FAQ

Questions about sdk_token_create

What does the sdk_token_create tool do? +

Mint a new SDK token (scoped, IP-bound, optional expiry). The raw token is returned exactly once — store it immediately. Defaults: scopes=["feedback","blackbox"], no CIDR, 1-year expiry. It is categorised as a Write tool in the Yaver MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does sdk_token_create accept? +

sdk_token_create accepts 4 parameters: label, scopes, expiresInMs, allowedCIDRs. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sdk_token_create? +

Register the Yaver MCP server in PolicyLayer and add a rule for sdk_token_create: 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 Yaver. Nothing to install.

What risk level is sdk_token_create? +

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

Can I rate-limit sdk_token_create? +

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

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

sdk_token_create is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.