add_task_artifact · Keshro MCP: Risk & Policy

WHAT IT DOES

What add_task_artifact does on Keshro MCP

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

WHY IT NEEDS A POLICY

Why add_task_artifact needs a policy

The tool appears to create or attach artifacts to tasks (reversible data modification), placing it in the Write category. Severity is medium due to the lack of a detailed description and uncertainty about what 'artifact' means in context—it could be metadata, files, or code artifacts.

From the tool's definition Tool name 'add_task_artifact' indicates it adds/creates artifacts associated with tasks. No description provided.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_task_artifact Rate-limited

add_task_artifact 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_task_artifact": {
      "limits": [
        {
          "counter": "add_task_artifact_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 Keshro MCP, so you can run agents against it safely.

FAQ

Questions about add_task_artifact

What does the add_task_artifact tool do? +

add_task_artifact. It is categorised as a Write tool in the Keshro MCP 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_task_artifact? +

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

What risk level is add_task_artifact? +

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

Can I rate-limit add_task_artifact? +

Yes. Add a rate_limit block to the add_task_artifact 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_task_artifact completely? +

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

add_task_artifact is provided by the Keshro MCP server (jlewitt1/keshro-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.