# 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.

Agent View of the PolicyLayer registry record for `local_ydb_tenant_check`. HTML page: https://policylayer.com/tools/local-ydb/local-ydb-tenant-check

## Facts

- Tool: `local_ydb_tenant_check`
- Server: Local Ydb (`@astandrik/local-ydb-mcp`) — https://policylayer.com/tools/local-ydb.md
- Install: `npx -y @astandrik/local-ydb-mcp`
- Homepage: git+https://github.com/astandrik/local-ydb-toolkit.git
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "local_ydb_tenant_check",
    "arguments": {}
  }
}
```

## 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 own 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."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Local Ydb:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "local_ydb_tenant_check": {}
  }
}
```

## Other tools on Local Ydb (37)

- `local_ydb_cleanup_storage` — Destructive — https://policylayer.com/tools/local-ydb/local-ydb-cleanup-storage.md
- `local_ydb_destroy_stack` — Destructive — https://policylayer.com/tools/local-ydb/local-ydb-destroy-stack.md
- `local_ydb_remove_dynamic_nodes` — Destructive — https://policylayer.com/tools/local-ydb/local-ydb-remove-dynamic-nodes.md
- `local_ydb_add_dynamic_nodes` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-add-dynamic-nodes.md
- `local_ydb_apply_auth_hardening` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-apply-auth-hardening.md
- `local_ydb_bootstrap` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-bootstrap.md
- `local_ydb_bootstrap_root_database` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-bootstrap-root-database.md
- `local_ydb_check_prerequisites` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-check-prerequisites.md
- `local_ydb_pull_image` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-pull-image.md
- `local_ydb_restart_stack` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-restart-stack.md
- `local_ydb_start_dynamic_node` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-start-dynamic-node.md
- `local_ydb_upgrade_version` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-upgrade-version.md
- `local_ydb_auth_check` — Read — https://policylayer.com/tools/local-ydb/local-ydb-auth-check.md
- `local_ydb_container_logs` — Read — https://policylayer.com/tools/local-ydb/local-ydb-container-logs.md
- `local_ydb_database_status` — Read — https://policylayer.com/tools/local-ydb/local-ydb-database-status.md
- `local_ydb_dump_tenant` — Read — https://policylayer.com/tools/local-ydb/local-ydb-dump-tenant.md
- `local_ydb_generate_schema` — Read — https://policylayer.com/tools/local-ydb/local-ydb-generate-schema.md
- `local_ydb_graphshard_check` — Read — https://policylayer.com/tools/local-ydb/local-ydb-graphshard-check.md
- `local_ydb_healthcheck` — Read — https://policylayer.com/tools/local-ydb/local-ydb-healthcheck.md
- `local_ydb_inventory` — Read — https://policylayer.com/tools/local-ydb/local-ydb-inventory.md
- `local_ydb_list_dumps` — Read — https://policylayer.com/tools/local-ydb/local-ydb-list-dumps.md
- `local_ydb_list_versions` — Read — https://policylayer.com/tools/local-ydb/local-ydb-list-versions.md
- `local_ydb_nodes_check` — Read — https://policylayer.com/tools/local-ydb/local-ydb-nodes-check.md
- `local_ydb_pull_status` — Read — https://policylayer.com/tools/local-ydb/local-ydb-pull-status.md
- `local_ydb_reduce_storage_groups` — Read — https://policylayer.com/tools/local-ydb/local-ydb-reduce-storage-groups.md
- `local_ydb_scheme` — Read — https://policylayer.com/tools/local-ydb/local-ydb-scheme.md
- `local_ydb_status_report` — Read — https://policylayer.com/tools/local-ydb/local-ydb-status-report.md
- `local_ydb_storage_leftovers` — Read — https://policylayer.com/tools/local-ydb/local-ydb-storage-leftovers.md
- `local_ydb_storage_placement` — Read — https://policylayer.com/tools/local-ydb/local-ydb-storage-placement.md
- `local_ydb_add_storage_groups` — Write — https://policylayer.com/tools/local-ydb/local-ydb-add-storage-groups.md
- …and 7 more: https://policylayer.com/tools/local-ydb.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=local-ydb · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/local-ydb