io.github.astandrik/local-ydb-mcp

local_ydb_add_dynamic_nodes

Add extra dynamic tenant nodes beyond the configured primary dynamic node, one at a time. Without confirm=true it returns container/port plans; with confirm=true it starts each node, verifies its IC port appears in viewer/json nodelist, and checks tenant metadata.

local_ydb_add_storage_groups

Increase NumGroups for one tenant storage pool using the current ReadStoragePool definition. Without confirm=true this returns the DefineStoragePool plan, rollback, target pool, and target count; when the update succeeds it verifies NumGroups and tenant metadata.

local_ydb_apply_auth_hardening

Apply a reviewed hardened YDB config file and restart local-ydb so auth settings take effect. Use only after preparing and reviewing the config; without confirm=true this returns the apply/restart plan only.

local_ydb_apply_schema

Validate or apply YDB table DDL through the official YDB JS SDK. It accepts raw YQL DDL for PRAGMA plus CREATE TABLE, ALTER TABLE, and DROP TABLE; action=apply validates first and executes only with confirm=true.

local_ydb_auth_check

Read-only auth audit that checks anonymous viewer whoami status and configured YDB CLI tenant access, using root credentials when rootPasswordFile is configured. Use after auth hardening or password rotation to verify the expected posture.

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.

local_ydb_bootstrap_root_database

Bootstrap a plain local YDB database at /local with only a static node. Use for generic local database requests that do not need a CMS tenant, GraphShard, or dynamic nodes; without confirm=true this returns the image preflight, Docker network/storage/static-node, and verification plan without executing it.

local_ydb_check_prerequisites

Check target-host prerequisites for Docker, curl, ruby, and the configured rootPasswordFile when present. Without confirm=true it returns checks, missing items, manual actions, and any apt-get install plan; with confirm=true it may install only supported curl/ruby packages and never installs Docker.

local_ydb_cleanup_storage

Delete only the explicitly supplied local-ydb host paths or Docker volumes. Use after inspecting local_ydb_storage_leftovers; without confirm=true this returns the cleanup plan and removes nothing.

local_ydb_container_logs

Read recent Docker logs from the configured static or primary dynamic local-ydb container. Use when bootstrap, restart, or readiness checks fail; target selects the container role and lines controls the tail length.

local_ydb_create_tenant

Create the configured CMS tenant when the static node is already running. Use before local_ydb_start_dynamic_node for tenant topologies; without confirm=true this returns the planned status/create command and creates nothing.

local_ydb_database_status

Read-only YDB admin database status for the configured tenant path. Returns the command, stdout, stderr, and ok flag; use this for tenant state before bootstrap/restart troubleshooting, and use local_ydb_tenant_check for scheme reachability.

local_ydb_destroy_stack

Remove tenant metadata, local-ydb containers, network, and storage for a profile, with optional host-path cleanup.

local_ydb_dump_tenant

Dump the configured tenant or a tenant-relative path using a local-ydb helper container on the static container network. It creates profile.dumpHostPath/dumpName, excludes .sys objects, writes the dump under dumpName/tenant, and without confirm=true returns the mkdir/helper-container plan only.

local_ydb_generate_schema

Read-only structured YDB table DDL generator. It renders strict JSON specs for CREATE TABLE, ALTER TABLE, DROP TABLE, and secondary indexes, returns the generated script with official references and warnings, and can optionally validate through the YDB JS SDK without applying changes.

local_ydb_graphshard_check

Read-only GraphShard check through viewer/json capabilities and tabletinfo for the configured tenant. Returns graphShardExists, tablet ids, and viewer status details; use after tenant bootstrap when GraphShard support or tablet visibility is the specific question.

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; use after local_ydb_status_report for database-level diagnostics.

local_ydb_inventory

Read-only Docker inventory for a local-ydb target profile. Returns the public profile, Docker containers and volumes visible on the selected target, and inspect data for the configured static and primary dynamic containers; use before mutating tools to capture current stack state.

local_ydb_list_dumps

Read-only list of available tenant dumps under profile.dumpHostPath. Use before restore to choose a dumpName; it only reports top-level dump directories that contain the existing tenant dump folder.

local_ydb_list_versions

List published registry tags for a local-ydb container image, with numeric version tags sorted newest first. Use before local_ydb_upgrade_version to choose a target tag; pageSize and maxPages bound registry pagination and the response reports truncation.

local_ydb_nodes_check

Read-only check of dynamic node registration through viewer/json nodelist. Use after starting, adding, or removing dynamic nodes; use local_ydb_tenant_check first when tenant reachability is unknown.

local_ydb_permissions

Inspect or change YDB scheme permissions for a path. The default list action is read-only; grant, revoke, set, clear, chown, and inheritance changes return a plan unless confirm=true.

local_ydb_prepare_auth_config

Generate a hardened YDB config from the current static-node config. Use before local_ydb_write_dynamic_auth_config and local_ydb_apply_auth_hardening; without confirm=true this returns the planned write only.

local_ydb_pull_image

Plan or start a background Docker pull for a local-ydb image on the selected target. Without confirm=true it returns inspect and pull commands only; with confirm=true it returns a jobId for local_ydb_pull_status unless the image is already present.

local_ydb_pull_status

Check the status of a background Docker image pull started by local_ydb_pull_image.

local_ydb_reduce_storage_groups

Reduce NumGroups for a tenant storage pool by dumping the tenant, rebuilding the profile stack with a smaller storagePoolCount, restoring the dump, and reapplying auth when needed.

local_ydb_remove_dynamic_nodes

Remove extra dynamic tenant nodes one at a time and verify nodelist disappearance when the node IC port can be resolved.

local_ydb_restart_stack

Restart the selected profile by stopping dynamic and static containers, starting the static node, ensuring the configured tenant, then starting the dynamic node. Use after config or runtime changes; without confirm=true this returns the restart plan only.

local_ydb_restore_tenant

Restore the configured tenant or destination path from a dump under profile.dumpHostPath, with optional post-restore scheme describe and bounded count-query verification. Use after bootstrap or rebuild when the target tenant is ready; without confirm=true this returns the restore plan and does not write data.

local_ydb_scheme

Read-only YDB scheme list or describe with capped stdout/stderr. It uses the root database for rootDatabase paths and the tenant database otherwise; list supports recursive/long/onePerLine flags, describe supports stats, and incompatible flag combinations are rejected.

local_ydb_set_root_password

Rotate the runtime root password with ALTER USER and sync the host auth config and root password file to match. YDB may reject passwords that violate auth_config.password_complexity; this tool requires a non-empty password value.

local_ydb_sql

Run managed YQL v1 against the configured local-ydb target through Query Service. query uses SnapshotRO, explain returns plan/AST, and execute always runs EXPLAIN first and sends one NoTx execution only with confirm=true.

local_ydb_start_dynamic_node

Start the configured primary dynamic tenant node for an existing CMS tenant. Use after local_ydb_create_tenant or when admin status is PENDING_RESOURCES; use local_ydb_add_dynamic_nodes for extra nodes. Without confirm=true this returns a plan only.

local_ydb_status_report

Read-only aggregate report for quick diagnosis. Runs local_ydb_inventory, local_ydb_auth_check, local_ydb_tenant_check, local_ydb_nodes_check, and local_ydb_healthcheck, returning each result; use this first for broad stack health, then run focused checks for database status, GraphShard, storage, or logs.

local_ydb_storage_leftovers

Read-only search for candidate leftover local-ydb Docker volumes, dumps, and PDisk/data paths. It scans Docker volume names plus profile.storageSearchPaths and deletes nothing; use before local_ydb_cleanup_storage to decide exact paths or volumes to remove.

local_ydb_storage_placement

Read-only storage inspection that returns ReadStoragePool output and BSC physical placement. Use before adding or reducing storage groups to confirm the exact pool shape.

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.

local_ydb_upgrade_version

Upgrade a file-backed, volume-backed local-ydb profile to a target image tag. Use only for version upgrades on profiles without bindMountPath; it preflights source and target images, dumps, rebuilds, restores, reapplies auth when configured, recreates extra nodes, verifies container images, and persists the profile image after successful confirmed execution.

local_ydb_write_dynamic_auth_config

Write the text-proto dynamic-node auth token file needed for mandatory-auth startup. Use after choosing the SID for auth hardening; without confirm=true this returns the planned file write only.