list_active_timers
AI agents call list_active_timers to retrieve information from Slack MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves information about active timers with no side effects or modifications. This is a classic Read operation—it queries state without altering it. Confidence is slightly reduced due to empty description, but the naming pattern and sibling context strongly indicate a read-only status lookup. Severity is low because exposing timer status poses minimal risk.
From the tool's definition Tool name 'list_active_timers' indicates a retrieval operation that queries the state of existing timers without modifying them.
Attacks that exploit this kind of access
list_active_timers. It is categorised as a Read tool in the Slack MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Slack MCP Server MCP server in PolicyLayer and add a rule for list_active_timers: 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 MCP Server. Nothing to install.
list_active_timers 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 list_active_timers 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 list_active_timers. 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.
list_active_timers is provided by the Slack MCP Server MCP server (yeoamlog/slack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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