diff --git a/packages/cosmic-proto/dist/agoric/vstorage/query.d.ts b/packages/cosmic-proto/dist/agoric/vstorage/query.d.ts
new file mode 100644
index 00000000000..2a7a4265016
--- /dev/null
+++ b/packages/cosmic-proto/dist/agoric/vstorage/query.d.ts
@@ -0,0 +1,438 @@
+import Long from 'long';
+import _m0 from 'protobufjs/minimal.js';
+import {
+  PageRequest,
+  PageResponse,
+} from '../../cosmos/base/query/v1beta1/pagination.js';
+export declare const protobufPackage = 'agoric.vstorage';
+/** QueryDataRequest is the vstorage path data query. */
+export interface QueryDataRequest {
+  path: string;
+}
+/** QueryDataResponse is the vstorage path data response. */
+export interface QueryDataResponse {
+  value: string;
+}
+/** QueryChildrenRequest is the vstorage path children query. */
+export interface QueryChildrenRequest {
+  path: string;
+  pagination?: PageRequest;
+}
+/** QueryChildrenResponse is the vstorage path children response. */
+export interface QueryChildrenResponse {
+  children: string[];
+  pagination?: PageResponse;
+}
+export declare const QueryDataRequest: {
+  encode(message: QueryDataRequest, writer?: _m0.Writer): _m0.Writer;
+  decode(input: _m0.Reader | Uint8Array, length?: number): QueryDataRequest;
+  fromJSON(object: any): QueryDataRequest;
+  toJSON(message: QueryDataRequest): unknown;
+  fromPartial<
+    I extends {
+      path?: string | undefined;
+    } & {
+      path?: string | undefined;
+    } & { [K in Exclude<keyof I, 'path'>]: never },
+  >(
+    object: I,
+  ): QueryDataRequest;
+};
+export declare const QueryDataResponse: {
+  encode(message: QueryDataResponse, writer?: _m0.Writer): _m0.Writer;
+  decode(input: _m0.Reader | Uint8Array, length?: number): QueryDataResponse;
+  fromJSON(object: any): QueryDataResponse;
+  toJSON(message: QueryDataResponse): unknown;
+  fromPartial<
+    I extends {
+      value?: string | undefined;
+    } & {
+      value?: string | undefined;
+    } & { [K in Exclude<keyof I, 'value'>]: never },
+  >(
+    object: I,
+  ): QueryDataResponse;
+};
+export declare const QueryChildrenRequest: {
+  encode(message: QueryChildrenRequest, writer?: _m0.Writer): _m0.Writer;
+  decode(input: _m0.Reader | Uint8Array, length?: number): QueryChildrenRequest;
+  fromJSON(object: any): QueryChildrenRequest;
+  toJSON(message: QueryChildrenRequest): unknown;
+  fromPartial<
+    I extends {
+      path?: string | undefined;
+      pagination?:
+        | {
+            key?: Uint8Array | undefined;
+            offset?: string | number | Long | undefined;
+            limit?: string | number | Long | undefined;
+            countTotal?: boolean | undefined;
+            reverse?: boolean | undefined;
+          }
+        | undefined;
+    } & {
+      path?: string | undefined;
+      pagination?:
+        | ({
+            key?: Uint8Array | undefined;
+            offset?: string | number | Long | undefined;
+            limit?: string | number | Long | undefined;
+            countTotal?: boolean | undefined;
+            reverse?: boolean | undefined;
+          } & {
+            key?: Uint8Array | undefined;
+            offset?:
+              | string
+              | number
+              | (Long & {
+                  high: number;
+                  low: number;
+                  unsigned: boolean;
+                  add: (addend: string | number | Long) => Long;
+                  and: (other: string | number | Long) => Long;
+                  compare: (other: string | number | Long) => number;
+                  comp: (other: string | number | Long) => number;
+                  divide: (divisor: string | number | Long) => Long;
+                  div: (divisor: string | number | Long) => Long;
+                  equals: (other: string | number | Long) => boolean;
+                  eq: (other: string | number | Long) => boolean;
+                  getHighBits: () => number;
+                  getHighBitsUnsigned: () => number;
+                  getLowBits: () => number;
+                  getLowBitsUnsigned: () => number;
+                  getNumBitsAbs: () => number;
+                  greaterThan: (other: string | number | Long) => boolean;
+                  gt: (other: string | number | Long) => boolean;
+                  greaterThanOrEqual: (
+                    other: string | number | Long,
+                  ) => boolean;
+                  gte: (other: string | number | Long) => boolean;
+                  ge: (other: string | number | Long) => boolean;
+                  isEven: () => boolean;
+                  isNegative: () => boolean;
+                  isOdd: () => boolean;
+                  isPositive: () => boolean;
+                  isZero: () => boolean;
+                  eqz: () => boolean;
+                  lessThan: (other: string | number | Long) => boolean;
+                  lt: (other: string | number | Long) => boolean;
+                  lessThanOrEqual: (other: string | number | Long) => boolean;
+                  lte: (other: string | number | Long) => boolean;
+                  le: (other: string | number | Long) => boolean;
+                  modulo: (other: string | number | Long) => Long;
+                  mod: (other: string | number | Long) => Long;
+                  rem: (other: string | number | Long) => Long;
+                  multiply: (multiplier: string | number | Long) => Long;
+                  mul: (multiplier: string | number | Long) => Long;
+                  negate: () => Long;
+                  neg: () => Long;
+                  not: () => Long;
+                  countLeadingZeros: () => number;
+                  clz: () => number;
+                  countTrailingZeros: () => number;
+                  ctz: () => number;
+                  notEquals: (other: string | number | Long) => boolean;
+                  neq: (other: string | number | Long) => boolean;
+                  ne: (other: string | number | Long) => boolean;
+                  or: (other: string | number | Long) => Long;
+                  shiftLeft: (numBits: number | Long) => Long;
+                  shl: (numBits: number | Long) => Long;
+                  shiftRight: (numBits: number | Long) => Long;
+                  shr: (numBits: number | Long) => Long;
+                  shiftRightUnsigned: (numBits: number | Long) => Long;
+                  shru: (numBits: number | Long) => Long;
+                  shr_u: (numBits: number | Long) => Long;
+                  rotateLeft: (numBits: number | Long) => Long;
+                  rotl: (numBits: number | Long) => Long;
+                  rotateRight: (numBits: number | Long) => Long;
+                  rotr: (numBits: number | Long) => Long;
+                  subtract: (subtrahend: string | number | Long) => Long;
+                  sub: (subtrahend: string | number | Long) => Long;
+                  toInt: () => number;
+                  toNumber: () => number;
+                  toBytes: (le?: boolean | undefined) => number[];
+                  toBytesLE: () => number[];
+                  toBytesBE: () => number[];
+                  toSigned: () => Long;
+                  toString: (radix?: number | undefined) => string;
+                  toUnsigned: () => Long;
+                  xor: (other: string | number | Long) => Long;
+                } & {
+                  [K in Exclude<
+                    keyof I['pagination']['offset'],
+                    keyof Long
+                  >]: never;
+                })
+              | undefined;
+            limit?:
+              | string
+              | number
+              | (Long & {
+                  high: number;
+                  low: number;
+                  unsigned: boolean;
+                  add: (addend: string | number | Long) => Long;
+                  and: (other: string | number | Long) => Long;
+                  compare: (other: string | number | Long) => number;
+                  comp: (other: string | number | Long) => number;
+                  divide: (divisor: string | number | Long) => Long;
+                  div: (divisor: string | number | Long) => Long;
+                  equals: (other: string | number | Long) => boolean;
+                  eq: (other: string | number | Long) => boolean;
+                  getHighBits: () => number;
+                  getHighBitsUnsigned: () => number;
+                  getLowBits: () => number;
+                  getLowBitsUnsigned: () => number;
+                  getNumBitsAbs: () => number;
+                  greaterThan: (other: string | number | Long) => boolean;
+                  gt: (other: string | number | Long) => boolean;
+                  greaterThanOrEqual: (
+                    other: string | number | Long,
+                  ) => boolean;
+                  gte: (other: string | number | Long) => boolean;
+                  ge: (other: string | number | Long) => boolean;
+                  isEven: () => boolean;
+                  isNegative: () => boolean;
+                  isOdd: () => boolean;
+                  isPositive: () => boolean;
+                  isZero: () => boolean;
+                  eqz: () => boolean;
+                  lessThan: (other: string | number | Long) => boolean;
+                  lt: (other: string | number | Long) => boolean;
+                  lessThanOrEqual: (other: string | number | Long) => boolean;
+                  lte: (other: string | number | Long) => boolean;
+                  le: (other: string | number | Long) => boolean;
+                  modulo: (other: string | number | Long) => Long;
+                  mod: (other: string | number | Long) => Long;
+                  rem: (other: string | number | Long) => Long;
+                  multiply: (multiplier: string | number | Long) => Long;
+                  mul: (multiplier: string | number | Long) => Long;
+                  negate: () => Long;
+                  neg: () => Long;
+                  not: () => Long;
+                  countLeadingZeros: () => number;
+                  clz: () => number;
+                  countTrailingZeros: () => number;
+                  ctz: () => number;
+                  notEquals: (other: string | number | Long) => boolean;
+                  neq: (other: string | number | Long) => boolean;
+                  ne: (other: string | number | Long) => boolean;
+                  or: (other: string | number | Long) => Long;
+                  shiftLeft: (numBits: number | Long) => Long;
+                  shl: (numBits: number | Long) => Long;
+                  shiftRight: (numBits: number | Long) => Long;
+                  shr: (numBits: number | Long) => Long;
+                  shiftRightUnsigned: (numBits: number | Long) => Long;
+                  shru: (numBits: number | Long) => Long;
+                  shr_u: (numBits: number | Long) => Long;
+                  rotateLeft: (numBits: number | Long) => Long;
+                  rotl: (numBits: number | Long) => Long;
+                  rotateRight: (numBits: number | Long) => Long;
+                  rotr: (numBits: number | Long) => Long;
+                  subtract: (subtrahend: string | number | Long) => Long;
+                  sub: (subtrahend: string | number | Long) => Long;
+                  toInt: () => number;
+                  toNumber: () => number;
+                  toBytes: (le?: boolean | undefined) => number[];
+                  toBytesLE: () => number[];
+                  toBytesBE: () => number[];
+                  toSigned: () => Long;
+                  toString: (radix?: number | undefined) => string;
+                  toUnsigned: () => Long;
+                  xor: (other: string | number | Long) => Long;
+                } & {
+                  [K_1 in Exclude<
+                    keyof I['pagination']['limit'],
+                    keyof Long
+                  >]: never;
+                })
+              | undefined;
+            countTotal?: boolean | undefined;
+            reverse?: boolean | undefined;
+          } & {
+            [K_2 in Exclude<keyof I['pagination'], keyof PageRequest>]: never;
+          })
+        | undefined;
+    } & { [K_3 in Exclude<keyof I, keyof QueryChildrenRequest>]: never },
+  >(
+    object: I,
+  ): QueryChildrenRequest;
+};
+export declare const QueryChildrenResponse: {
+  encode(message: QueryChildrenResponse, writer?: _m0.Writer): _m0.Writer;
+  decode(
+    input: _m0.Reader | Uint8Array,
+    length?: number,
+  ): QueryChildrenResponse;
+  fromJSON(object: any): QueryChildrenResponse;
+  toJSON(message: QueryChildrenResponse): unknown;
+  fromPartial<
+    I extends {
+      children?: string[] | undefined;
+      pagination?:
+        | {
+            nextKey?: Uint8Array | undefined;
+            total?: string | number | Long | undefined;
+          }
+        | undefined;
+    } & {
+      children?:
+        | (string[] &
+            string[] & {
+              [K in Exclude<keyof I['children'], keyof string[]>]: never;
+            })
+        | undefined;
+      pagination?:
+        | ({
+            nextKey?: Uint8Array | undefined;
+            total?: string | number | Long | undefined;
+          } & {
+            nextKey?: Uint8Array | undefined;
+            total?:
+              | string
+              | number
+              | (Long & {
+                  high: number;
+                  low: number;
+                  unsigned: boolean;
+                  add: (addend: string | number | Long) => Long;
+                  and: (other: string | number | Long) => Long;
+                  compare: (other: string | number | Long) => number;
+                  comp: (other: string | number | Long) => number;
+                  divide: (divisor: string | number | Long) => Long;
+                  div: (divisor: string | number | Long) => Long;
+                  equals: (other: string | number | Long) => boolean;
+                  eq: (other: string | number | Long) => boolean;
+                  getHighBits: () => number;
+                  getHighBitsUnsigned: () => number;
+                  getLowBits: () => number;
+                  getLowBitsUnsigned: () => number;
+                  getNumBitsAbs: () => number;
+                  greaterThan: (other: string | number | Long) => boolean;
+                  gt: (other: string | number | Long) => boolean;
+                  greaterThanOrEqual: (
+                    other: string | number | Long,
+                  ) => boolean;
+                  gte: (other: string | number | Long) => boolean;
+                  ge: (other: string | number | Long) => boolean;
+                  isEven: () => boolean;
+                  isNegative: () => boolean;
+                  isOdd: () => boolean;
+                  isPositive: () => boolean;
+                  isZero: () => boolean;
+                  eqz: () => boolean;
+                  lessThan: (other: string | number | Long) => boolean;
+                  lt: (other: string | number | Long) => boolean;
+                  lessThanOrEqual: (other: string | number | Long) => boolean;
+                  lte: (other: string | number | Long) => boolean;
+                  le: (other: string | number | Long) => boolean;
+                  modulo: (other: string | number | Long) => Long;
+                  mod: (other: string | number | Long) => Long;
+                  rem: (other: string | number | Long) => Long;
+                  multiply: (multiplier: string | number | Long) => Long;
+                  mul: (multiplier: string | number | Long) => Long;
+                  negate: () => Long;
+                  neg: () => Long;
+                  not: () => Long;
+                  countLeadingZeros: () => number;
+                  clz: () => number;
+                  countTrailingZeros: () => number;
+                  ctz: () => number;
+                  notEquals: (other: string | number | Long) => boolean;
+                  neq: (other: string | number | Long) => boolean;
+                  ne: (other: string | number | Long) => boolean;
+                  or: (other: string | number | Long) => Long;
+                  shiftLeft: (numBits: number | Long) => Long;
+                  shl: (numBits: number | Long) => Long;
+                  shiftRight: (numBits: number | Long) => Long;
+                  shr: (numBits: number | Long) => Long;
+                  shiftRightUnsigned: (numBits: number | Long) => Long;
+                  shru: (numBits: number | Long) => Long;
+                  shr_u: (numBits: number | Long) => Long;
+                  rotateLeft: (numBits: number | Long) => Long;
+                  rotl: (numBits: number | Long) => Long;
+                  rotateRight: (numBits: number | Long) => Long;
+                  rotr: (numBits: number | Long) => Long;
+                  subtract: (subtrahend: string | number | Long) => Long;
+                  sub: (subtrahend: string | number | Long) => Long;
+                  toInt: () => number;
+                  toNumber: () => number;
+                  toBytes: (le?: boolean | undefined) => number[];
+                  toBytesLE: () => number[];
+                  toBytesBE: () => number[];
+                  toSigned: () => Long;
+                  toString: (radix?: number | undefined) => string;
+                  toUnsigned: () => Long;
+                  xor: (other: string | number | Long) => Long;
+                } & {
+                  [K_1 in Exclude<
+                    keyof I['pagination']['total'],
+                    keyof Long
+                  >]: never;
+                })
+              | undefined;
+          } & {
+            [K_2 in Exclude<keyof I['pagination'], keyof PageResponse>]: never;
+          })
+        | undefined;
+    } & { [K_3 in Exclude<keyof I, keyof QueryChildrenResponse>]: never },
+  >(
+    object: I,
+  ): QueryChildrenResponse;
+};
+/** Query defines the gRPC querier service */
+export interface Query {
+  /** Return an arbitrary vstorage datum. */
+  Data(request: QueryDataRequest): Promise<QueryDataResponse>;
+  /** Return the children of a given vstorage path. */
+  Children(request: QueryChildrenRequest): Promise<QueryChildrenResponse>;
+}
+export declare class QueryClientImpl implements Query {
+  private readonly rpc;
+  private readonly service;
+  constructor(
+    rpc: Rpc,
+    opts?: {
+      service?: string;
+    },
+  );
+  Data(request: QueryDataRequest): Promise<QueryDataResponse>;
+  Children(request: QueryChildrenRequest): Promise<QueryChildrenResponse>;
+}
+interface Rpc {
+  request(
+    service: string,
+    method: string,
+    data: Uint8Array,
+  ): Promise<Uint8Array>;
+}
+declare type Builtin =
+  | Date
+  | Function
+  | Uint8Array
+  | string
+  | number
+  | boolean
+  | undefined;
+export declare type DeepPartial<T> = T extends Builtin
+  ? T
+  : T extends Long
+  ? string | number | Long
+  : T extends Array<infer U>
+  ? Array<DeepPartial<U>>
+  : T extends ReadonlyArray<infer U>
+  ? ReadonlyArray<DeepPartial<U>>
+  : T extends {}
+  ? {
+      [K in keyof T]?: DeepPartial<T[K]>;
+    }
+  : Partial<T>;
+declare type KeysOfUnion<T> = T extends T ? keyof T : never;
+export declare type Exact<P, I extends P> = P extends Builtin
+  ? P
+  : P & {
+      [K in keyof P]: Exact<P[K], I[K]>;
+    } & {
+      [K in Exclude<keyof I, KeysOfUnion<P>>]: never;
+    };
+export {};
diff --git a/packages/cosmic-proto/dist/agoric/vstorage/query.js b/packages/cosmic-proto/dist/agoric/vstorage/query.js
new file mode 100644
index 00000000000..8d795ca8c03
--- /dev/null
+++ b/packages/cosmic-proto/dist/agoric/vstorage/query.js
@@ -0,0 +1,250 @@
+/* eslint-disable */
+import Long from 'long';
+import _m0 from 'protobufjs/minimal.js';
+import {
+  PageRequest,
+  PageResponse,
+} from '../../cosmos/base/query/v1beta1/pagination.js';
+export const protobufPackage = 'agoric.vstorage';
+function createBaseQueryDataRequest() {
+  return { path: '' };
+}
+export const QueryDataRequest = {
+  encode(message, writer = _m0.Writer.create()) {
+    if (message.path !== '') {
+      writer.uint32(10).string(message.path);
+    }
+    return writer;
+  },
+  decode(input, length) {
+    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
+    let end = length === undefined ? reader.len : reader.pos + length;
+    const message = createBaseQueryDataRequest();
+    while (reader.pos < end) {
+      const tag = reader.uint32();
+      switch (tag >>> 3) {
+        case 1:
+          message.path = reader.string();
+          break;
+        default:
+          reader.skipType(tag & 7);
+          break;
+      }
+    }
+    return message;
+  },
+  fromJSON(object) {
+    return { path: isSet(object.path) ? String(object.path) : '' };
+  },
+  toJSON(message) {
+    const obj = {};
+    message.path !== undefined && (obj.path = message.path);
+    return obj;
+  },
+  fromPartial(object) {
+    const message = createBaseQueryDataRequest();
+    message.path = object.path ?? '';
+    return message;
+  },
+};
+function createBaseQueryDataResponse() {
+  return { value: '' };
+}
+export const QueryDataResponse = {
+  encode(message, writer = _m0.Writer.create()) {
+    if (message.value !== '') {
+      writer.uint32(10).string(message.value);
+    }
+    return writer;
+  },
+  decode(input, length) {
+    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
+    let end = length === undefined ? reader.len : reader.pos + length;
+    const message = createBaseQueryDataResponse();
+    while (reader.pos < end) {
+      const tag = reader.uint32();
+      switch (tag >>> 3) {
+        case 1:
+          message.value = reader.string();
+          break;
+        default:
+          reader.skipType(tag & 7);
+          break;
+      }
+    }
+    return message;
+  },
+  fromJSON(object) {
+    return { value: isSet(object.value) ? String(object.value) : '' };
+  },
+  toJSON(message) {
+    const obj = {};
+    message.value !== undefined && (obj.value = message.value);
+    return obj;
+  },
+  fromPartial(object) {
+    const message = createBaseQueryDataResponse();
+    message.value = object.value ?? '';
+    return message;
+  },
+};
+function createBaseQueryChildrenRequest() {
+  return { path: '', pagination: undefined };
+}
+export const QueryChildrenRequest = {
+  encode(message, writer = _m0.Writer.create()) {
+    if (message.path !== '') {
+      writer.uint32(10).string(message.path);
+    }
+    if (message.pagination !== undefined) {
+      PageRequest.encode(message.pagination, writer.uint32(18).fork()).ldelim();
+    }
+    return writer;
+  },
+  decode(input, length) {
+    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
+    let end = length === undefined ? reader.len : reader.pos + length;
+    const message = createBaseQueryChildrenRequest();
+    while (reader.pos < end) {
+      const tag = reader.uint32();
+      switch (tag >>> 3) {
+        case 1:
+          message.path = reader.string();
+          break;
+        case 2:
+          message.pagination = PageRequest.decode(reader, reader.uint32());
+          break;
+        default:
+          reader.skipType(tag & 7);
+          break;
+      }
+    }
+    return message;
+  },
+  fromJSON(object) {
+    return {
+      path: isSet(object.path) ? String(object.path) : '',
+      pagination: isSet(object.pagination)
+        ? PageRequest.fromJSON(object.pagination)
+        : undefined,
+    };
+  },
+  toJSON(message) {
+    const obj = {};
+    message.path !== undefined && (obj.path = message.path);
+    message.pagination !== undefined &&
+      (obj.pagination = message.pagination
+        ? PageRequest.toJSON(message.pagination)
+        : undefined);
+    return obj;
+  },
+  fromPartial(object) {
+    const message = createBaseQueryChildrenRequest();
+    message.path = object.path ?? '';
+    message.pagination =
+      object.pagination !== undefined && object.pagination !== null
+        ? PageRequest.fromPartial(object.pagination)
+        : undefined;
+    return message;
+  },
+};
+function createBaseQueryChildrenResponse() {
+  return { children: [], pagination: undefined };
+}
+export const QueryChildrenResponse = {
+  encode(message, writer = _m0.Writer.create()) {
+    for (const v of message.children) {
+      writer.uint32(10).string(v);
+    }
+    if (message.pagination !== undefined) {
+      PageResponse.encode(
+        message.pagination,
+        writer.uint32(18).fork(),
+      ).ldelim();
+    }
+    return writer;
+  },
+  decode(input, length) {
+    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
+    let end = length === undefined ? reader.len : reader.pos + length;
+    const message = createBaseQueryChildrenResponse();
+    while (reader.pos < end) {
+      const tag = reader.uint32();
+      switch (tag >>> 3) {
+        case 1:
+          message.children.push(reader.string());
+          break;
+        case 2:
+          message.pagination = PageResponse.decode(reader, reader.uint32());
+          break;
+        default:
+          reader.skipType(tag & 7);
+          break;
+      }
+    }
+    return message;
+  },
+  fromJSON(object) {
+    return {
+      children: Array.isArray(object?.children)
+        ? object.children.map((e) => String(e))
+        : [],
+      pagination: isSet(object.pagination)
+        ? PageResponse.fromJSON(object.pagination)
+        : undefined,
+    };
+  },
+  toJSON(message) {
+    const obj = {};
+    if (message.children) {
+      obj.children = message.children.map((e) => e);
+    } else {
+      obj.children = [];
+    }
+    message.pagination !== undefined &&
+      (obj.pagination = message.pagination
+        ? PageResponse.toJSON(message.pagination)
+        : undefined);
+    return obj;
+  },
+  fromPartial(object) {
+    const message = createBaseQueryChildrenResponse();
+    message.children = object.children?.map((e) => e) || [];
+    message.pagination =
+      object.pagination !== undefined && object.pagination !== null
+        ? PageResponse.fromPartial(object.pagination)
+        : undefined;
+    return message;
+  },
+};
+export class QueryClientImpl {
+  rpc;
+  service;
+  constructor(rpc, opts) {
+    this.service = opts?.service || 'agoric.vstorage.Query';
+    this.rpc = rpc;
+    this.Data = this.Data.bind(this);
+    this.Children = this.Children.bind(this);
+  }
+  Data(request) {
+    const data = QueryDataRequest.encode(request).finish();
+    const promise = this.rpc.request(this.service, 'Data', data);
+    return promise.then((data) =>
+      QueryDataResponse.decode(new _m0.Reader(data)),
+    );
+  }
+  Children(request) {
+    const data = QueryChildrenRequest.encode(request).finish();
+    const promise = this.rpc.request(this.service, 'Children', data);
+    return promise.then((data) =>
+      QueryChildrenResponse.decode(new _m0.Reader(data)),
+    );
+  }
+}
+if (_m0.util.Long !== Long) {
+  _m0.util.Long = Long;
+  _m0.configure();
+}
+function isSet(value) {
+  return value !== null && value !== undefined;
+}
diff --git a/packages/cosmic-proto/package.json b/packages/cosmic-proto/package.json
index 4b8fec2f7b2..41abb5eb132 100644
--- a/packages/cosmic-proto/package.json
+++ b/packages/cosmic-proto/package.json
@@ -24,6 +24,10 @@
       "types": "./dist/agoric/swingset/query.d.ts",
       "default": "./dist/agoric/swingset/query.js"
     },
+    "./vstorage/query.js": {
+      "types": "./dist/agoric/vstorage/query.d.ts",
+      "default": "./dist/agoric/vstorage/query.js"
+    },
     "./swingset/swingset.js": {
       "types": "./dist/agoric/swingset/swingset.d.ts",
       "default": "./dist/agoric/swingset/swingset.js"
@@ -32,7 +36,7 @@
   "scripts": {
     "build": "echo Use yarn rebuild to update dist output",
     "rebuild": "rm -rf gen && mkdir -p gen && yarn generate && tsc --build && yarn prettier -w dist/agoric && rm -rf gen",
-    "generate": "protoc --plugin=node_modules/.bin/protoc-gen-ts_proto --ts_proto_opt='esModuleInterop=true,forceLong=long,useOptionals=messages' --ts_proto_out=./gen --ts_proto_opt=importSuffix=.js ./proto/agoric/swingset/msgs.proto ./proto/agoric/swingset/query.proto -I./proto",
+    "generate": "protoc --plugin=node_modules/.bin/protoc-gen-ts_proto --ts_proto_opt='esModuleInterop=true,forceLong=long,useOptionals=messages' --ts_proto_out=./gen --ts_proto_opt=importSuffix=.js ./proto/agoric/swingset/msgs.proto ./proto/agoric/swingset/query.proto ./proto/agoric/vstorage/query.proto -I./proto",
     "test": "node test/sanity-test.js",
     "test:xs": "exit 0",
     "lint": "exit 0",
diff --git a/packages/cosmic-proto/test/sanity-test.js b/packages/cosmic-proto/test/sanity-test.js
index db3495231a8..96487d96409 100644
--- a/packages/cosmic-proto/test/sanity-test.js
+++ b/packages/cosmic-proto/test/sanity-test.js
@@ -1,3 +1,4 @@
 /* eslint-disable import/no-extraneous-dependencies -- bug in rule thinks this package depends on itself */
 import '@agoric/cosmic-proto/swingset/msgs.js';
 import '@agoric/cosmic-proto/swingset/query.js';
+import '@agoric/cosmic-proto/vstorage/query.js';