Low Risk

slipping_users

List app users who have not returned within a given inactivity window (churn-risk cohort) via /o/slipping. Use this to identify re-engagement targets; for generic user listings use user_profiles_query instead.

Single-target operation

Part of the Countly MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call slipping_users to retrieve information from Countly without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though slipping_users only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

countly.yaml
tools:
  slipping_users:
    rules:
      - action: allow

See the full Countly policy for all 127 tools.

Tool Name slipping_users
Category Read
MCP Server Countly MCP Server
Risk Level Low

View all 127 tools →

Agents calling read-class tools like slipping_users have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the slipping_users tool do? +

List app users who have not returned within a given inactivity window (churn-risk cohort) via /o/slipping. Use this to identify re-engagement targets; for generic user listings use user_profiles_query instead.. It is categorised as a Read tool in the Countly MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on slipping_users? +

Add a rule in your Intercept YAML policy under the tools section for slipping_users. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Countly MCP server.

What risk level is slipping_users? +

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

Can I rate-limit slipping_users? +

Yes. Add a rate_limit block to the slipping_users rule in your Intercept 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 slipping_users completely? +

Set action: deny in the Intercept policy for slipping_users. 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 slipping_users? +

slipping_users is provided by the Countly MCP server (countly-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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