Get the time-series distribution of log counts matching a query. Returns a visual histogram showing log volume over time. Useful for identifying when errors spiked or when unusual activity occurred.
AI agents call get_log_histogram to retrieve information from Aliyun Sls without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and visualizes historical log data without side effects. It queries existing logs to generate statistics and visual representations, fitting the Read category. The severity is low because it only accesses logs without affecting system state or data integrity. The confidence is high because the description clearly indicates a read-only analytical operation.
From the tool's definition Tool name 'get_log_histogram' and description 'Get the time-series distribution of log counts matching a query. Returns a visual histogram showing log volume over time.' indicate data retrieval and visualization only.
Documented attack patterns abuse exactly the kind of access get_log_histogram gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Aliyun Sls, and nothing reaches the server without passing your rules. This is the rule we recommend for get_log_histogram:
{
"version": "1",
"default": "deny",
"tools": {
"get_log_histogram": {}
}
}get_log_histogram is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the time-series distribution of log counts matching a query. Returns a visual histogram showing log volume over time. Useful for identifying when errors spiked or when unusual activity occurred. It is categorised as a Read tool in the Aliyun Sls MCP Server, which means it retrieves data without modifying state.
Register the Aliyun Sls MCP server in PolicyLayer and add a rule for get_log_histogram: 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 Aliyun Sls. Nothing to install.
get_log_histogram 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 get_log_histogram 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 get_log_histogram. 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.
get_log_histogram is provided by the Aliyun Sls MCP server (suxyee/aliyun-sls-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Aliyun Sls, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 Aliyun Sls tools catalogued and risk-classified — across an index of 43,000+ MCP servers.