helm

Manages Helm releases (install, upgrade, list, status, history, template). Returns structured JSON output.

SERVERNpm SOURCEDave-London/Pare

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/io-github-dave-london-npm/helm.md

WHAT IT DOES

What helm does on Npm

AI agents invoke helm to trigger actions in Npm. 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 helm is rated High

Helm operations like install and upgrade deploy or modify Kubernetes workloads in a cluster, which constitutes executing external operations with significant infrastructure impact. While list/status/history are read-only and template is local rendering, the presence of install and upgrade make this an Execute-category tool. Misuse could deploy malicious workloads or disrupt running services, warranting high severity.

From the tool's definition Manages Helm releases (install, upgrade, list, status, history, template)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs helm safely

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

helm Rate-limited

helm 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": {
    "helm": {
      "limits": [
        {
          "counter": "helm_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 Npm, apply this rule, and every helm call is checked against it from then on.

FAQ

Questions about helm

What does the helm tool do? +

Manages Helm releases (install, upgrade, list, status, history, template). Returns structured JSON output. It is categorised as a Execute tool in the Npm MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on helm? +

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

What risk level is helm? +

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

Can I rate-limit helm? +

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

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

helm is provided by the Npm MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Npm, and thousands of servers like it.

This server

All 202 Npm tools → High-risk tools on this server →

Across the catalogue

All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →