dooray_join_channel_members · Dooray MCP Server MCP

WHAT IT DOES

What dooray_join_channel_members does on Dooray MCP Server

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

WHY IT NEEDS A POLICY

Why dooray_join_channel_members needs a policy

This tool creates or modifies channel membership by adding members to a channel. It is reversible (members can be removed), so it falls under Write rather than Destructive. The severity is medium because unauthorized member additions could allow malicious actors to gain access to channels, see sensitive information, or disrupt team communication, but the impact is limited to a single channel's access control.

From the tool's definition Tool name 'dooray_join_channel_members' and description 'Add members to a messenger channel' indicate creation/modification of channel membership data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

dooray_join_channel_members Rate-limited

dooray_join_channel_members 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": {
    "dooray_join_channel_members": {
      "limits": [
        {
          "counter": "dooray_join_channel_members_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 Dooray MCP Server, so you can run agents against it safely.

FAQ

Questions about dooray_join_channel_members

What does the dooray_join_channel_members tool do? +

Add members to a messenger channel. It is categorised as a Write tool in the Dooray MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on dooray_join_channel_members? +

Register the Dooray MCP Server MCP server in PolicyLayer and add a rule for dooray_join_channel_members: 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 Dooray MCP Server. Nothing to install.

What risk level is dooray_join_channel_members? +

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

Can I rate-limit dooray_join_channel_members? +

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

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

dooray_join_channel_members is provided by the Dooray MCP Server MCP server (kwanok/dooray-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.