add_bulk_results · Testrail MCP: Risk & Policy

WHAT IT DOES

What add_bulk_results does on Testrail

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

WHY IT NEEDS A POLICY

Why add_bulk_results needs a policy

This tool creates or modifies test results in TestRail by posting bulk result data. The verb 'Post' and action of adding results to TestRail indicate data modification. It is reversible (results can typically be re-run or updated), so it falls under Write rather than Destructive or Execute.

From the tool's definition Post many results in one TestRail call

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_bulk_results Rate-limited

add_bulk_results 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": {
    "add_bulk_results": {
      "limits": [
        {
          "counter": "add_bulk_results_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 Testrail, so you can run agents against it safely.

FAQ

Questions about add_bulk_results

What does the add_bulk_results tool do? +

Post many results in one TestRail call (much faster than looping add_result). It is categorised as a Write tool in the Testrail MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_bulk_results? +

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

What risk level is add_bulk_results? +

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

Can I rate-limit add_bulk_results? +

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

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

add_bulk_results is provided by the Testrail MCP server (sergey-bl/testrail-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.