segment_list_destinations

List all destinations connected to a Segment source.

SERVERUnClick SOURCE@unclick/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-malamutemayhem-unclick-mcp-server/segment-list-destinations.md

WHAT IT DOES

What segment_list_destinations does on UnClick

AI agents call segment_list_destinations to retrieve information from UnClick 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
`api_key`	string	Yes	Segment Public API token
`source_id`	string	Yes	Segment source ID

Parameters from the server's own tool schema.

RISK

Why segment_list_destinations is rated Low

This tool retrieves configuration information about data pipeline destinations without modifying or deleting anything. It is a Read operation. The severity is medium rather than low because Segment destinations may reveal sensitive information about where customer data flows and integrations in use, which could inform social engineering or further attacks, though the tool itself performs no destructive or financial…

From the tool's definition Tool name contains 'list' and description states 'List all destinations' - a retrieval operation with no modification capability. However, Segment is a customer data platform that consolidates sensitive user and business analytics data.

Risk signalsHandles credentials or secrets (api_key)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs segment_list_destinations safely

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

segment_list_destinations Allowed

segment_list_destinations 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": {
    "segment_list_destinations": {}
  }
}

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

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

FAQ

Questions about segment_list_destinations

What does the segment_list_destinations tool do? +

List all destinations connected to a Segment source. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does segment_list_destinations accept? +

segment_list_destinations accepts 2 parameters: api_key, source_id. Required: api_key, source_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on segment_list_destinations? +

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

What risk level is segment_list_destinations? +

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

Can I rate-limit segment_list_destinations? +

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

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

segment_list_destinations is provided by the UnClick MCP server (@unclick/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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