line_broadcast

Broadcast a text message to all followers of your LINE Official Account.

SERVERUnClick SOURCE@unclick/mcp-server

Low RISK CLASS

Category Read

Parameters 21 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/line-broadcast.md

WHAT IT DOES

What line_broadcast does on UnClick

AI agents call line_broadcast 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
`message`	string	Yes
`channel_access_token`	string	—

Parameters from the server's own tool schema.

RISK

Why line_broadcast is rated Low

Even though line_broadcast 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 line_broadcast 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 line_broadcast, this is the rule to start with:

line_broadcast Allowed

line_broadcast 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": {
    "line_broadcast": {}
  }
}

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 line_broadcast call is checked against it from then on.

FAQ

Questions about line_broadcast

What does the line_broadcast tool do? +

Broadcast a text message to all followers of your LINE Official Account. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does line_broadcast accept? +

line_broadcast accepts 2 parameters: message, channel_access_token. Required: message. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on line_broadcast? +

Register the UnClick MCP server in PolicyLayer and add a rule for line_broadcast: 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 line_broadcast? +

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

Can I rate-limit line_broadcast? +

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

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

line_broadcast 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.

KEEP EXPLORING

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