List public Slack channels. Args: limit: Maximum number of channels to return (default 50).
AI agents call slack_list_channels to retrieve information from autoMate without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns data about public Slack channels without modifying, executing, or deleting anything. Public channels are by definition discoverable information. The blast radius of misuse is minimal—an agent could only enumerate channel metadata, not access private channels or perform actions. This is a straightforward Read operation.
From the tool's definition Tool name 'slack_list_channels' and description 'List public Slack channels' indicate a retrieval operation with no side effects. The arg 'limit' controls pagination of results only.
Documented attack patterns abuse exactly the kind of access slack_list_channels gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and autoMate, and nothing reaches the server without passing your rules. This is the rule we recommend for slack_list_channels:
{
"version": "1",
"default": "deny",
"tools": {
"slack_list_channels": {}
}
}slack_list_channels is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List public Slack channels. Args: limit: Maximum number of channels to return (default 50). It is categorised as a Read tool in the autoMate MCP Server, which means it retrieves data without modifying state.
Register the autoMate MCP server in PolicyLayer and add a rule for slack_list_channels: 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 autoMate. Nothing to install.
slack_list_channels is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the slack_list_channels 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.
Set action: deny in the PolicyLayer policy for slack_list_channels. 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.
slack_list_channels is provided by the autoMate MCP server (yuruotong1/automate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 128 autoMate tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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128 autoMate tools catalogued and risk-classified — across an index of 42,500+ MCP servers.