# local_ydb_healthcheck

Read-only YDB monitoring healthcheck for the configured tenant or root database. Uses the official YDB CLI SelfCheck path, returns selfCheckResult, issue counts, issue types, capped raw output, and whether the database is healthy; a requested noCache/noMerge option rejected with the exact recognized two-line legacy parser signature is reported through optionResolution and warnings, while compatibilityFallback says whether a retry actually started. Use after local_ydb_status_report for database-level diagnostics.

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

## Facts

- Tool: `local_ydb_healthcheck`
- 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_healthcheck",
    "arguments": {}
  }
}
```

## Why local_ydb_healthcheck is rated Low

Tool queries database health status without modifying data or triggering external operations.

From the tool's own definition: "Read-only YDB monitoring healthcheck, SelfCheck path, returns selfCheckResult"

Risk signals: Admin/system-level operation

## Use case

AI agents call local_ydb_healthcheck 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_healthcheck": {}
  }
}
```

## Other tools on Local Ydb (38)

- `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_reduce_storage_groups` — Destructive — https://policylayer.com/tools/local-ydb/local-ydb-reduce-storage-groups.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_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_sql` — Execute — https://policylayer.com/tools/local-ydb/local-ydb-sql.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_check_prerequisites` — Read — https://policylayer.com/tools/local-ydb/local-ydb-check-prerequisites.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_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_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_tenant_check` — Read — https://policylayer.com/tools/local-ydb/local-ydb-tenant-check.md
- …and 8 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`

---

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