storage_start

Start local S3-compatible storage (MinIO).

SERVERYaver SOURCEyaver-cli

High RISK CLASS

Category Execute

Parameters 10 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-kivanccakmak-yaver/storage-start.md

WHAT IT DOES

What storage_start does on Yaver

AI agents invoke storage_start to trigger actions in Yaver. 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.

Parameter	Type	Required	Description
`port`	integer	—	API port (default: 9000)

Parameters from the server's own tool schema.

RISK

Why storage_start is rated High

This tool executes a command to start a service rather than simply reading or writing data. Starting a storage service is an operational trigger that launches an external process/system. While not immediately destructive, it has system-level effects (resource allocation, port binding, service initialization) and could impact the local development environment.

From the tool's definition Tool performs 'Start local S3-compatible storage (MinIO)', which initiates/triggers an external operation (storage service startup) whose effects depend on the system state and argument configuration.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs storage_start safely

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

storage_start Rate-limited

storage_start 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": {
    "storage_start": {
      "limits": [
        {
          "counter": "storage_start_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 Yaver, apply this rule, and every storage_start call is checked against it from then on.

FAQ

Questions about storage_start

What does the storage_start tool do? +

Start local S3-compatible storage (MinIO). It is categorised as a Execute tool in the Yaver MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

What parameters does storage_start accept? +

storage_start accepts 1 parameter: port. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on storage_start? +

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

What risk level is storage_start? +

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

Can I rate-limit storage_start? +

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

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

storage_start is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Yaver, and thousands of servers like it.

This server

All 645 Yaver tools → High-risk tools on this server →

Across the catalogue

start_devtools_monitoring on Percepta MCP Server →team_manager_start_room on Team Manager MCP →start_etw_trace on Procmon → All high-risk MCP tools → The MCP Attack Database →

Guides

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