join_fleet

Join an invite-only fleet with invite_token. Free Protocol tool.

SERVERDelx MCP Server SOURCEdelx-mcp-server

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/join-fleet.md

WHAT IT DOES

What join_fleet does on Delx MCP Server

AI agents call join_fleet to retrieve information from Delx MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`agent_id`	string	Yes
`invite_token`	string	Yes

Parameters from the server's own tool schema.

RISK

Why join_fleet is rated Low

Even though join_fleet only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs join_fleet safely

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

join_fleet Allowed

join_fleet is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "join_fleet": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about join_fleet

What does the join_fleet tool do? +

Join an invite-only fleet with invite_token. Free Protocol tool. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.

What parameters does join_fleet accept? +

join_fleet accepts 2 parameters: agent_id, invite_token. Required: agent_id, invite_token. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on join_fleet? +

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

What risk level is join_fleet? +

join_fleet is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit join_fleet? +

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

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

join_fleet is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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