slack_list_channels
List Slack channels in the workspace
This record as markdown: /tools/io-github-alifanov-scopegate/slack-list-channels.md
What slack_list_channels does on ScopeGate
AI agents call slack_list_channels to retrieve information from ScopeGate without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why slack_list_channels is rated Low
This tool retrieves information about Slack channels without creating, modifying, deleting, or executing any operations. It is a read-only enumeration of existing workspace channels. The blast radius of misuse is minimal—an agent could discover channel names and metadata, but cannot alter channels or their contents. Severity is low because channel listings are typically not sensitive in most organizations.
From the tool's definition Tool name 'slack_list_channels' and description 'List Slack channels in the workspace' indicate a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs slack_list_channels safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScopeGate, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For slack_list_channels, this is the rule to start with:
slack_list_channels is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScopeGate, apply this rule, and every slack_list_channels call is checked against it from then on.
Questions about slack_list_channels
List Slack channels in the workspace. It is categorised as a Read tool in the ScopeGate MCP Server, which means it retrieves data without modifying state.
Register the ScopeGate 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 ScopeGate. 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 ScopeGate MCP server (https://mcp.scopegate.cloud/{api_key}). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on ScopeGate, and thousands of servers like it.
This server
Across the catalogue