job_cancel

Cancel a running background job and its child process group.

SERVERZebbern Kali MCP SOURCEzebbern/zebbern-kali-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/zebbern-zebbern-kali-mcp/job-cancel.md

WHAT IT DOES

What job_cancel does on Zebbern Kali MCP

AI agents invoke job_cancel to trigger actions in Zebbern Kali MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why job_cancel is rated High

Terminates running processes; irreversible interruption but no data deletion or financial impact.

From the tool's definition Cancel a running background job and its child process group

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs job_cancel safely

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

job_cancel Rate-limited

job_cancel stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "job_cancel": {
      "limits": [
        {
          "counter": "job_cancel_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Zebbern Kali MCP, apply this rule, and every job_cancel call is checked against it from then on.

FAQ

Questions about job_cancel

What does the job_cancel tool do? +

Cancel a running background job and its child process group. It is categorised as a Execute tool in the Zebbern Kali MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on job_cancel? +

Register the Zebbern Kali MCP server in PolicyLayer and add a rule for job_cancel: 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 Zebbern Kali MCP. Nothing to install.

What risk level is job_cancel? +

job_cancel is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit job_cancel? +

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

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

job_cancel is provided by the Zebbern Kali MCP server (zebbern/zebbern-kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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