update_code_test_cases · Xiaoya Teacher MCP: Risk & Policy

WHAT IT DOES

What update_code_test_cases does on Xiaoya Teacher

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

WHY IT NEEDS A POLICY

Why update_code_test_cases needs a policy

This tool modifies code test cases, which are educational content that can be changed or reverted. It is not destructive (irreversible deletion), not financial, and not code execution itself—it updates configuration/test data. The empty description reduces confidence slightly, but the naming pattern and server context (educational management platform) suggest reversible data modification typical of Write operations.

From the tool's definition Tool name 'update_code_test_cases' indicates modification of existing test case data. The 'update' verb aligns with Write category (creates or modifies data reversibly).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_code_test_cases Rate-limited

update_code_test_cases 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": {
    "update_code_test_cases": {
      "limits": [
        {
          "counter": "update_code_test_cases_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 Xiaoya Teacher, so you can run agents against it safely.

FAQ

Questions about update_code_test_cases

What does the update_code_test_cases tool do? +

update_code_test_cases. It is categorised as a Write tool in the Xiaoya Teacher MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_code_test_cases? +

Register the Xiaoya Teacher MCP server in PolicyLayer and add a rule for update_code_test_cases: 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 Xiaoya Teacher. Nothing to install.

What risk level is update_code_test_cases? +

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

Can I rate-limit update_code_test_cases? +

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

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

update_code_test_cases is provided by the Xiaoya Teacher MCP server (sav1our520/xiaoya-teacher-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.