local_ydb_tenant_check
Read-only check that uses the YDB CLI to verify the configured tenant path is reachable. Use after bootstrap or restore to confirm tenant metadata before node or GraphShard checks.
This record as markdown: /tools/local-ydb/local-ydb-tenant-check.md
What local_ydb_tenant_check does on Local Ydb
AI agents call local_ydb_tenant_check to retrieve information from Local Ydb without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why local_ydb_tenant_check is rated Low
This tool retrieves and checks the status of a tenant path without modifying, deleting, or executing operations that change state. It is a diagnostic/verification operation typical of Read category tools. The low severity reflects minimal blast radius—misuse only returns connectivity or metadata information without operational impact.
From the tool's definition Tool description explicitly states 'Read-only check' and uses YDB CLI to 'verify' the configured tenant path is reachable. It performs validation and confirmation only, with no side effects.
Attacks that exploit this kind of access
The rule that runs local_ydb_tenant_check safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Local Ydb, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For local_ydb_tenant_check, this is the rule to start with:
local_ydb_tenant_check 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 Local Ydb, apply this rule, and every local_ydb_tenant_check call is checked against it from then on.
Questions about local_ydb_tenant_check
Read-only check that uses the YDB CLI to verify the configured tenant path is reachable. Use after bootstrap or restore to confirm tenant metadata before node or GraphShard checks. It is categorised as a Read tool in the Local Ydb MCP Server, which means it retrieves data without modifying state.
Register the Local Ydb MCP server in PolicyLayer and add a rule for local_ydb_tenant_check: 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 Local Ydb. Nothing to install.
local_ydb_tenant_check 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 local_ydb_tenant_check 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 local_ydb_tenant_check. 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.
local_ydb_tenant_check is provided by the Local Ydb MCP server (@astandrik/local-ydb-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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