neuron_set_group_join_approval

Enable or disable join approval mode for a WhatsApp group. When enabled, join requests must be manually approved by admins. Requires admin.

SERVERNeuron SOURCEneuron-mcp-server

Medium RISK CLASS

Category Write

Parameters 33 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-conquext-neuron/neuron-set-group-join-approval.md

WHAT IT DOES

What neuron_set_group_join_approval does on Neuron

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

Parameter	Type	Required	Description
`enabled`	boolean	Yes	true to require admin approval for joins, false to allow direct joins
`groupJid`	string	Yes	Group JID (ending in @g.us)
`channelId`	string	Yes	WhatsApp channel identifier (UUID)

Parameters from the server's own tool schema.

RISK

Why neuron_set_group_join_approval is rated Medium

This tool creates or modifies group configuration settings in a reversible manner. While it affects access control, it does not execute arbitrary code, delete data, or move money. The modification is reversible (can be toggled on/off). Severity is medium because misconfiguration could impact group membership flows and admin workflows, but the blast radius is limited to a single group's settings.

From the tool's definition Tool performs 'enable or disable join approval mode' which modifies group settings and requires admin privileges. Description explicitly states it changes a configuration setting ('enable or disable').

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs neuron_set_group_join_approval safely

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

neuron_set_group_join_approval Rate-limited

neuron_set_group_join_approval 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": {
    "neuron_set_group_join_approval": {
      "limits": [
        {
          "counter": "neuron_set_group_join_approval_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about neuron_set_group_join_approval

What does the neuron_set_group_join_approval tool do? +

Enable or disable join approval mode for a WhatsApp group. When enabled, join requests must be manually approved by admins. Requires admin. It is categorised as a Write tool in the Neuron MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does neuron_set_group_join_approval accept? +

neuron_set_group_join_approval accepts 3 parameters: enabled, groupJid, channelId. Required: enabled, groupJid, channelId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on neuron_set_group_join_approval? +

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

What risk level is neuron_set_group_join_approval? +

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

Can I rate-limit neuron_set_group_join_approval? +

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

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

neuron_set_group_join_approval is provided by the Neuron MCP server (neuron-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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