local_ydb_bootstrap
Bootstrap a tenant topology: static node with GraphShard flags, configured CMS tenant, and primary dynamic tenant node. Use only for tenant, GraphShard, dump/restore, or dynamic-node scenarios; without confirm=true this returns the full plan and creates nothing.
This record as markdown: /tools/local-ydb/local-ydb-bootstrap.md
What local_ydb_bootstrap does on Local Ydb
AI agents invoke local_ydb_bootstrap to trigger actions in Local Ydb. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why local_ydb_bootstrap is rated High
This tool provisions and configures infrastructure components (static nodes, CMS tenants, dynamic nodes). It triggers external operations with significant side effects. While it has a dry-run mode (without confirm=true), when confirmed it executes multi-component deployment operations. It's not purely destructive but has high blast radius due to infrastructure provisioning scope.
From the tool's definition Bootstrap a tenant topology: static node with GraphShard flags, configured CMS tenant, and primary dynamic tenant node
Attacks that exploit this kind of access
The rule that runs local_ydb_bootstrap 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_bootstrap, this is the rule to start with:
local_ydb_bootstrap stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. 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_bootstrap call is checked against it from then on.
Questions about local_ydb_bootstrap
Bootstrap a tenant topology: static node with GraphShard flags, configured CMS tenant, and primary dynamic tenant node. Use only for tenant, GraphShard, dump/restore, or dynamic-node scenarios; without confirm=true this returns the full plan and creates nothing. It is categorised as a Execute tool in the Local Ydb MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Local Ydb MCP server in PolicyLayer and add a rule for local_ydb_bootstrap: 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_bootstrap is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the local_ydb_bootstrap 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_bootstrap. 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_bootstrap 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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