set_agent_uri

Update agent registration file URI on Identity Registry

SERVERWaiaas SOURCEminhoyoo-iotrust/waiaas

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/minhoyoo-iotrust-waiaas/set-agent-uri.md

WHAT IT DOES

What set_agent_uri does on Waiaas

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

RISK

Why set_agent_uri is rated Medium

This is a Write operation because it updates data (agent registration URI) in a reversible manner. Severity is medium because while it doesn't directly move funds or execute arbitrary code, modifying agent registration in an identity registry could affect how agents are identified or authenticated in the system, potentially enabling impersonation or routing attacks if an AI agent sets a malicious URI pointing to…

From the tool's definition 'Update agent registration file URI on Identity Registry' indicates the tool modifies an existing registration record by changing its URI reference.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_agent_uri safely

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

set_agent_uri Rate-limited

set_agent_uri 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": {
    "set_agent_uri": {
      "limits": [
        {
          "counter": "set_agent_uri_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 Waiaas, apply this rule, and every set_agent_uri call is checked against it from then on.

FAQ

Questions about set_agent_uri

What does the set_agent_uri tool do? +

Update agent registration file URI on Identity Registry. It is categorised as a Write tool in the Waiaas MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_agent_uri? +

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

What risk level is set_agent_uri? +

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

Can I rate-limit set_agent_uri? +

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

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

set_agent_uri is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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