Get OceanBase Active Session History report. ASH can sample the status of all Active Sessions in the system at 1-second intervals, including: Current executing SQL ID Current wait events (if any) Wait time and wait parameters The module where the SESSION is located during sampling (PARSE, EXECUTE...
AI agents call get_ob_ash_report to retrieve information from Mcp Oceanbase without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that queries and retrieves performance monitoring data from the database system. It samples session activity and returns historical information for analysis purposes with no side effects, data modifications, or destructive operations. The verb 'Get' and the descriptive focus on retrieval and analysis confirm it is a Read category tool.
From the tool's definition Tool description states it 'Get OceanBase Active Session History report' and retrieves data about 'Active Sessions in the system' including 'Current executing SQL ID', 'wait events', 'wait time', 'SESSION status records'.
Documented attack patterns abuse exactly the kind of access get_ob_ash_report gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Oceanbase, and nothing reaches the server without passing your rules. This is the rule we recommend for get_ob_ash_report:
{
"version": "1",
"default": "deny",
"tools": {
"get_ob_ash_report": {}
}
}get_ob_ash_report is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get OceanBase Active Session History report. ASH can sample the status of all Active Sessions in the system at 1-second intervals, including: Current executing SQL ID Current wait events (if any) Wait time and wait parameters The module where the SESSION is located during sampling (PARSE, EXECUTE, PL, etc.) SESSION status records, such as SESSION MODULE, ACTION, CLIENT ID This will be very useful when you perform performance analysis.RetryClaude can make mistakes. Please double-check responses. Args: start_time: Sample Start Time,Format: yyyy-MM-dd HH:mm:ss. end_time: Sample End Time,Format: yyyy-MM-dd HH:mm:ss. tenant_id: Used to specify the tenant ID for generating the ASH Report. Leaving this field blank or setting it to NULL indicates no restriction on the TENANT_ID. It is categorised as a Read tool in the Mcp Oceanbase MCP Server, which means it retrieves data without modifying state.
Register the Mcp Oceanbase MCP server in PolicyLayer and add a rule for get_ob_ash_report: 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 Mcp Oceanbase. Nothing to install.
get_ob_ash_report 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_ob_ash_report 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_ob_ash_report. 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_ob_ash_report is provided by the Mcp Oceanbase MCP server (oceanbase/awesome-oceanbase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 134 Mcp Oceanbase tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
134 Mcp Oceanbase tools catalogued and risk-classified — across an index of 42,500+ MCP servers.