assets.updateObjectSchema · Gojira MCP: Risk & Policy

WHAT IT DOES

What assets.updateObjectSchema does on Gojira

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

WHY IT NEEDS A POLICY

Why assets.updateObjectSchema needs a policy

This tool creates or modifies data (an object schema) reversibly. While schema updates can have wide blast radius (affecting all objects using that schema), they are not irreversible deletions and fit Write category. Severity is high because misconfigured schemas in a CMDB can cascade to many dependent records, and an agent error could corrupt asset tracking across the organization.

From the tool's definition Tool name includes 'update' and description states 'Update an object schema'. The Assets CMDB context indicates this modifies configuration that affects the entire asset database structure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

assets.updateObjectSchema Rate-limited

assets.updateObjectSchema 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": {
    "assets.updateObjectSchema": {
      "limits": [
        {
          "counter": "assets.updateobjectschema_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 Gojira, so you can run agents against it safely.

FAQ

Questions about assets.updateObjectSchema

What does the assets.updateObjectSchema tool do? +

Update an object schema. It is categorised as a Write tool in the Gojira MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on assets.updateObjectSchema? +

Register the Gojira MCP server in PolicyLayer and add a rule for assets.updateObjectSchema: 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 Gojira. Nothing to install.

What risk level is assets.updateObjectSchema? +

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

Can I rate-limit assets.updateObjectSchema? +

Yes. Add a rate_limit block to the assets.updateObjectSchema 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 assets.updateObjectSchema completely? +

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

assets.updateObjectSchema is provided by the Gojira MCP server (windoze95/gojira-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.