This record as markdown: /tools/karbassi-slack-mcp/users-custom-status-list.md
What users_custom_status_list does on Slack
AI agents call users_custom_status_list to retrieve information from Slack without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why users_custom_status_list is rated Low
This tool retrieves user custom status data from Slack, which is a read-only operation with no side effects. Despite the empty description, the naming convention strongly suggests data retrieval. The risk is low because custom status information is generally non-sensitive metadata in workspace contexts.
From the tool's definition Tool name 'users_custom_status_list' indicates it lists/retrieves user custom status information. The 'list' suffix is characteristic of Read operations that query data without modification.
Attacks that exploit this kind of access
The rule that runs users_custom_status_list safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Slack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For users_custom_status_list, this is the rule to start with:
users_custom_status_list 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 Slack, apply this rule, and every users_custom_status_list call is checked against it from then on.
Questions about users_custom_status_list
users_custom_status_list is a read tool on the Slack MCP server. It is categorised as a Read tool in the Slack MCP Server, which means it retrieves data without modifying state.
Register the Slack MCP server in PolicyLayer and add a rule for users_custom_status_list: 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 Slack. Nothing to install.
users_custom_status_list 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 users_custom_status_list 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 users_custom_status_list. 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.
users_custom_status_list is provided by the Slack MCP server (karbassi/slack-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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