diff --git a/a3p-integration/proposals/n:upgrade-next/openVault.js b/a3p-integration/proposals/n:upgrade-next/openVault.js
new file mode 100644
index 00000000000..1583af59993
--- /dev/null
+++ b/a3p-integration/proposals/n:upgrade-next/openVault.js
@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+import {
+  GOV1ADDR,
+  CHAINID,
+  agd,
+  openVault,
+  addUser,
+  waitForBlock,
+  provisionSmartWallet,
+  ATOM_DENOM,
+} from '@agoric/synthetic-chain';
+
+export const bankSend = (from, addr, wanted) => {
+  const chain = ['--chain-id', CHAINID];
+  const fromArg = ['--from', from];
+  const testKeyring = ['--keyring-backend', 'test'];
+  const noise = [...fromArg, ...chain, ...testKeyring, '--yes'];
+
+  return agd.tx('bank', 'send', from, addr, wanted, ...noise);
+};
+
+const user = await addUser('long-living-vault');
+console.log('USER', user);
+await bankSend(GOV1ADDR, user, `80000000uist`);
+console.log('IST sent');
+await provisionSmartWallet(user, `20000000ubld,100000000${ATOM_DENOM}`);
+console.log('Provision sent');
+await waitForBlock(3);
+console.log('Wait For Block done. Sending open vault offer');
+
+const mint = '5.0';
+const collateral = '10.0';
+await openVault(user, mint, collateral);
diff --git a/a3p-integration/proposals/n:upgrade-next/sync-tools.js b/a3p-integration/proposals/n:upgrade-next/sync-tools.js
new file mode 100644
index 00000000000..4a0e727c465
--- /dev/null
+++ b/a3p-integration/proposals/n:upgrade-next/sync-tools.js
@@ -0,0 +1,72 @@
+/* eslint-env node */
+
+/**
+ * @file These tools mostly duplicate code that will be added in other PRs
+ * and eventually migrated to synthetic-chain. Sorry for the duplication.
+ */
+
+/**
+ * @typedef {object} RetryOptions
+ * @property {number} [maxRetries]
+ * @property {number} [retryIntervalMs]
+ * @property {(...arg0: string[]) => void} log
+ * @property {(object) => void} [setTimeout]
+ * @property {string} [errorMessage=Error]
+ */
+
+const ambientSetTimeout = global.setTimeout;
+
+/**
+ * From https://github.com/Agoric/agoric-sdk/blob/442f07c8f0af03281b52b90e90c27131eef6f331/multichain-testing/tools/sleep.ts#L10
+ *
+ * @param {number} ms
+ * @param {*} sleepOptions
+ */
+const sleep = (ms, { log = () => {}, setTimeout = ambientSetTimeout }) =>
+  new Promise(resolve => {
+    log(`Sleeping for ${ms}ms...`);
+    setTimeout(resolve, ms);
+  });
+
+/**
+ * From https://github.com/Agoric/agoric-sdk/blob/442f07c8f0af03281b52b90e90c27131eef6f331/multichain-testing/tools/sleep.ts#L24
+ *
+ * @param {() => Promise} operation
+ * @param {(result: any) => boolean} condition
+ * @param {string} message
+ * @param {RetryOptions} options
+ */
+export const retryUntilCondition = async (
+  operation,
+  condition,
+  message,
+  { maxRetries = 6, retryIntervalMs = 3500, log, setTimeout },
+) => {
+  console.log({ maxRetries, retryIntervalMs, message });
+  let retries = 0;
+
+  await null;
+  while (retries < maxRetries) {
+    try {
+      const result = await operation();
+      log('RESULT', result);
+      if (condition(result)) {
+        return result;
+      }
+    } catch (error) {
+      if (error instanceof Error) {
+        log(`Error: ${error.message}`);
+      } else {
+        log(`Unknown error: ${String(error)}`);
+      }
+    }
+
+    retries += 1;
+    console.log(
+      `Retry ${retries}/${maxRetries} - Waiting for ${retryIntervalMs}ms for ${message}...`,
+    );
+    await sleep(retryIntervalMs, { log, setTimeout });
+  }
+
+  throw Error(`${message} condition failed after ${maxRetries} retries.`);
+};
diff --git a/a3p-integration/proposals/n:upgrade-next/use.sh b/a3p-integration/proposals/n:upgrade-next/use.sh
index 18740efb70e..f5897e5e5a3 100644
--- a/a3p-integration/proposals/n:upgrade-next/use.sh
+++ b/a3p-integration/proposals/n:upgrade-next/use.sh
@@ -11,3 +11,5 @@ node ./addGov4
 # "oracles" accept their invitations and provide prices to priceFeeds
 ./verifyPushedPrice.js 'ATOM' 12.01
 ./verifyPushedPrice.js 'stATOM' 12.01
+
+./openVault.js
diff --git a/a3p-integration/proposals/z:acceptance/package.json b/a3p-integration/proposals/z:acceptance/package.json
index 7410b3c8446..4d66b29daa9 100644
--- a/a3p-integration/proposals/z:acceptance/package.json
+++ b/a3p-integration/proposals/z:acceptance/package.json
@@ -14,6 +14,7 @@
     "@agoric/internal": "dev",
     "@agoric/store": "dev",
     "@agoric/synthetic-chain": "^0.3.0",
+    "@agoric/zoe": "dev",
     "@endo/errors": "^1.2.2",
     "@endo/far": "^1.1.5",
     "@endo/init": "^1.1.4",
@@ -22,6 +23,10 @@
     "execa": "^9.3.1",
     "tsx": "^4.17.0"
   },
+  "$comment": "UNTIL https://github.com/Agoric/agoric-sdk/issues/10259",
+  "resolutions": {
+    "@agoric/xsnap": "beta"
+  },
   "ava": {
     "concurrency": 1,
     "serial": true,
diff --git a/a3p-integration/proposals/z:acceptance/test-lib/price-feed.js b/a3p-integration/proposals/z:acceptance/test-lib/price-feed.js
new file mode 100644
index 00000000000..179cfa5c203
--- /dev/null
+++ b/a3p-integration/proposals/z:acceptance/test-lib/price-feed.js
@@ -0,0 +1,62 @@
+/* eslint-env node */
+
+import {
+  agoric,
+  getContractInfo,
+  pushPrices,
+  getPriceQuote,
+} from '@agoric/synthetic-chain';
+import { retryUntilCondition } from './sync-tools.js';
+
+export const scale6 = x => BigInt(x * 1_000_000);
+
+/**
+ *
+ * @param {Map<any, any>} oraclesByBrand
+ * @param {string} brand
+ * @param {number} price
+ * @param {number} roundId
+ * @returns {Promise<void>}
+ */
+export const verifyPushedPrice = async (
+  oraclesByBrand,
+  brand,
+  price,
+  roundId,
+) => {
+  const pushPriceRetryOpts = {
+    maxRetries: 5, // arbitrary
+    retryIntervalMs: 5000, // in ms
+  };
+
+  await pushPrices(price, brand, oraclesByBrand, roundId);
+  console.log(`Pushing price ${price} for ${brand}`);
+
+  await retryUntilCondition(
+    () => getPriceQuote(brand),
+    res => res === `+${scale6(price).toString()}`,
+    'price not pushed yet',
+    {
+      log: console.log,
+      setTimeout: global.setTimeout,
+      ...pushPriceRetryOpts,
+    },
+  );
+  console.log(`Price ${price} pushed for ${brand}`);
+};
+
+/**
+ *
+ * @param {string} brand
+ * @returns {Promise<number>}
+ */
+export const getPriceFeedRoundId = async brand => {
+  const latestRoundPath = `published.priceFeed.${brand}-USD_price_feed.latestRound`;
+  const latestRound = await getContractInfo(latestRoundPath, {
+    agoric,
+    prefix: '',
+  });
+
+  console.log('latestRound: ', latestRound);
+  return Number(latestRound.roundId);
+};
diff --git a/a3p-integration/proposals/z:acceptance/test-lib/psm-lib.js b/a3p-integration/proposals/z:acceptance/test-lib/psm-lib.js
index 442a947500b..be07700df72 100644
--- a/a3p-integration/proposals/z:acceptance/test-lib/psm-lib.js
+++ b/a3p-integration/proposals/z:acceptance/test-lib/psm-lib.js
@@ -426,7 +426,7 @@ const extractBalance = (balances, targetDenom) => {
  * @param {number} actualBalance
  * @param {number} expectedBalance
  */
-const tryISTBalances = async (t, actualBalance, expectedBalance) => {
+export const tryISTBalances = async (t, actualBalance, expectedBalance) => {
   const firstTry = await t.try(
     (tt, actual, expected) => {
       tt.deepEqual(actual, expected);
diff --git a/a3p-integration/proposals/z:acceptance/test-lib/utils.js b/a3p-integration/proposals/z:acceptance/test-lib/utils.js
index 2ea35ba4bae..8c6300876ed 100644
--- a/a3p-integration/proposals/z:acceptance/test-lib/utils.js
+++ b/a3p-integration/proposals/z:acceptance/test-lib/utils.js
@@ -1,6 +1,7 @@
-import { makeAgd, agops } from '@agoric/synthetic-chain';
+import { makeAgd, agops, agoric } from '@agoric/synthetic-chain';
 import { execFileSync } from 'node:child_process';
 import { readFile, writeFile } from 'node:fs/promises';
+import { boardSlottingMarshaller, makeFromBoard } from './rpc.js';
 
 /**
  * @param {string} fileName base file name without .tjs extension
@@ -66,3 +67,22 @@ export const makeTimerUtils = ({ setTimeout }) => {
     waitUntil,
   };
 };
+
+const fromBoard = makeFromBoard();
+const marshaller = boardSlottingMarshaller(fromBoard.convertSlotToVal);
+
+export const getAgoricNamesBrands = async () => {
+  const brands = await agoric
+    .follow('-lF', ':published.agoricNames.brand', '-o', 'text')
+    .then(res => Object.fromEntries(marshaller.fromCapData(JSON.parse(res))));
+
+  return brands;
+};
+
+export const getAgoricNamesInstances = async () => {
+  const instances = await agoric
+    .follow('-lF', ':published.agoricNames.instance', '-o', 'text')
+    .then(res => Object.fromEntries(marshaller.fromCapData(JSON.parse(res))));
+
+  return instances;
+};
diff --git a/a3p-integration/proposals/z:acceptance/test-lib/vaults.js b/a3p-integration/proposals/z:acceptance/test-lib/vaults.js
new file mode 100644
index 00000000000..4ce0ff42716
--- /dev/null
+++ b/a3p-integration/proposals/z:acceptance/test-lib/vaults.js
@@ -0,0 +1,225 @@
+/* eslint-env node */
+
+import '@endo/init';
+import {
+  agops,
+  agoric,
+  executeOffer,
+  getContractInfo,
+  GOV1ADDR,
+  GOV2ADDR,
+} from '@agoric/synthetic-chain';
+import { AmountMath } from '@agoric/ertp';
+import {
+  ceilMultiplyBy,
+  makeRatio,
+} from '@agoric/zoe/src/contractSupport/ratio.js';
+import { getAgoricNamesBrands, getAgoricNamesInstances } from './utils.js';
+import { boardSlottingMarshaller, makeFromBoard } from './rpc.js';
+import { retryUntilCondition } from './sync-tools.js';
+
+const fromBoard = makeFromBoard();
+const marshaller = boardSlottingMarshaller(fromBoard.convertSlotToVal);
+
+/**
+ * @param {string} address
+ * @returns {Promise<{ vaultID: string, debt: bigint, collateral: bigint, state: string }>}
+ */
+export const getLastVaultFromAddress = async address => {
+  const activeVaults = await agops.vaults('list', '--from', address);
+  const vaultPath = activeVaults[activeVaults.length - 1];
+  const vaultID = vaultPath.split('.').pop();
+
+  if (!vaultID) {
+    throw new Error(`No vaults found for ${address}`);
+  }
+
+  const vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
+
+  const debt = vaultData.debtSnapshot.debt.value;
+  const collateral = vaultData.locked.value;
+  const state = vaultData.vaultState;
+
+  return { vaultID, debt, collateral, state };
+};
+
+/**
+ * @param {string} vaultManager
+ * @returns {Promise<{ availableDebtForMint: bigint, debtLimit: bigint, totalDebt: bigint }>}
+ */
+export const getAvailableDebtForMint = async vaultManager => {
+  const governancePath = `published.vaultFactory.managers.${vaultManager}.governance`;
+  const governance = await getContractInfo(governancePath, {
+    agoric,
+    prefix: '',
+  });
+
+  const metricsPath = `published.vaultFactory.managers.${vaultManager}.metrics`;
+  const metrics = await getContractInfo(metricsPath, {
+    agoric,
+    prefix: '',
+  });
+
+  const debtLimit = governance.current.DebtLimit.value;
+  const totalDebt = metrics.totalDebt;
+  // @ts-expect-error
+  const availableDebtForMint = (debtLimit.value - totalDebt.value) / 1_000_000n;
+
+  return {
+    availableDebtForMint,
+    debtLimit: debtLimit.value,
+    totalDebt: totalDebt.value,
+  };
+};
+
+/**
+ * @returns {Promise<bigint>}
+ */
+export const getMinInitialDebt = async () => {
+  const governancePath = `published.vaultFactory.governance`;
+  const governance = await getContractInfo(governancePath, {
+    agoric,
+    prefix: '',
+  });
+
+  const minInitialDebt = governance.current.MinInitialDebt.value.value;
+
+  return minInitialDebt / 1_000_000n;
+};
+
+/**
+ * @param {bigint} toMintValue
+ * @param {string} vaultManager
+ * @returns {Promise<{ mintFee: import('@agoric/ertp/src/types.js').NatAmount, adjustedToMintAmount: import('@agoric/ertp/src/types.js').NatAmount }>}
+ */
+export const calculateMintFee = async (toMintValue, vaultManager) => {
+  const brands = await getAgoricNamesBrands();
+
+  const governancePath = `published.vaultFactory.managers.${vaultManager}.governance`;
+  const governance = await getContractInfo(governancePath, {
+    agoric,
+    prefix: '',
+  });
+
+  const mintFee = governance.current.MintFee;
+  const { numerator, denominator } = mintFee.value;
+
+  const mintFeeRatio = makeRatio(
+    numerator.value,
+    brands.IST,
+    denominator.value,
+    brands.IST,
+  );
+
+  const toMintAmount = AmountMath.make(brands.IST, toMintValue * 1_000_000n);
+  const expectedMintFee = ceilMultiplyBy(toMintAmount, mintFeeRatio);
+  const adjustedToMintAmount = AmountMath.add(toMintAmount, expectedMintFee);
+
+  return { mintFee, adjustedToMintAmount };
+};
+
+const voteForNewParams = (accounts, position) => {
+  console.log('ACTIONS voting for position', position, 'using', accounts);
+  return Promise.all(
+    accounts.map(account =>
+      agops.ec('vote', '--forPosition', position, '--send-from', account),
+    ),
+  );
+};
+
+const paramChangeOfferGeneration = async (
+  previousOfferId,
+  voteDur,
+  debtLimit,
+) => {
+  const ISTunit = 1_000_000n; // aka displayInfo: { decimalPlaces: 6 }
+
+  const brand = await getAgoricNamesBrands();
+  assert(brand.IST);
+  assert(brand.ATOM);
+
+  const instance = await getAgoricNamesInstances();
+  assert(instance.VaultFactory);
+
+  const voteDurSec = BigInt(voteDur);
+  const debtLimitValue = BigInt(debtLimit) * ISTunit;
+  const toSec = ms => BigInt(Math.round(ms / 1000));
+
+  const id = `propose-${Date.now()}`;
+  const deadline = toSec(Date.now()) + voteDurSec;
+
+  const body = {
+    method: 'executeOffer',
+    offer: {
+      id,
+      invitationSpec: {
+        invitationMakerName: 'VoteOnParamChange',
+        previousOffer: previousOfferId,
+        source: 'continuing',
+      },
+      offerArgs: {
+        deadline,
+        instance: instance.VaultFactory,
+        params: {
+          DebtLimit: {
+            brand: brand.IST,
+            value: debtLimitValue,
+          },
+        },
+        path: {
+          paramPath: {
+            key: {
+              collateralBrand: brand.ATOM,
+            },
+          },
+        },
+      },
+      proposal: {},
+    },
+  };
+
+  return JSON.stringify(marshaller.toCapData(harden(body)));
+};
+
+export const proposeNewDebtCeiling = async (address, debtLimit) => {
+  const charterAcceptOfferId = await agops.ec(
+    'find-continuing-id',
+    '--for',
+    `${'charter\\ member\\ invitation'}`,
+    '--from',
+    address,
+  );
+
+  return executeOffer(
+    address,
+    paramChangeOfferGeneration(charterAcceptOfferId, 30, debtLimit),
+  );
+};
+
+export const GOV4ADDR = 'agoric1c9gyu460lu70rtcdp95vummd6032psmpdx7wdy';
+export const setDebtLimit = async (address, debtLimit) => {
+  const govAccounts = [GOV1ADDR, GOV2ADDR, GOV4ADDR];
+
+  console.log('ACTIONS Setting debt limit');
+
+  await proposeNewDebtCeiling(address, debtLimit);
+  await voteForNewParams(govAccounts, 0);
+
+  console.log('ACTIONS wait for the vote to pass');
+
+  const pushPriceRetryOpts = {
+    maxRetries: 10, // arbitrary
+    retryIntervalMs: 5000, // in ms
+  };
+
+  await retryUntilCondition(
+    () => getAvailableDebtForMint('manager0'),
+    res => res.debtLimit === debtLimit * 1_000_000n,
+    'debt limit not set yet',
+    {
+      log: console.log,
+      setTimeout: global.setTimeout,
+      ...pushPriceRetryOpts,
+    },
+  );
+};
diff --git a/a3p-integration/proposals/z:acceptance/test.sh b/a3p-integration/proposals/z:acceptance/test.sh
index 65514c76e9f..906bb57262e 100755
--- a/a3p-integration/proposals/z:acceptance/test.sh
+++ b/a3p-integration/proposals/z:acceptance/test.sh
@@ -26,11 +26,11 @@ echo ACCEPTANCE TESTING state sync
 echo ACCEPTANCE TESTING wallet
 yarn ava wallet.test.js
 
-echo ACCEPTANCE TESTING vaults
-yarn ava vaults.test.js
-
 echo ACCEPTANCE TESTING psm
 yarn ava psm.test.js
 
 echo ACCEPTANCE TESTING governance
 yarn ava governance.test.js
+
+echo ACCEPTANCE TESTING vaults
+yarn ava vaults.test.js
diff --git a/a3p-integration/proposals/z:acceptance/vaults.test.js b/a3p-integration/proposals/z:acceptance/vaults.test.js
index 73f6c9433a2..a32e8e1115a 100644
--- a/a3p-integration/proposals/z:acceptance/vaults.test.js
+++ b/a3p-integration/proposals/z:acceptance/vaults.test.js
@@ -1,51 +1,43 @@
-/* eslint-env node */
 import test from 'ava';
+import '@endo/init';
 import {
-  agoric,
   bankSend,
   getUser,
   openVault,
   adjustVault,
   closeVault,
   getISTBalance,
-  getContractInfo,
   ATOM_DENOM,
   USER1ADDR,
-  waitForBlock,
+  GOV1ADDR,
+  generateOracleMap,
+  getPriceQuote,
+  getVaultPrices,
+  GOV2ADDR,
 } from '@agoric/synthetic-chain';
 import { getBalances, agopsVaults } from './test-lib/utils.js';
+import {
+  calculateMintFee,
+  getAvailableDebtForMint,
+  getLastVaultFromAddress,
+  getMinInitialDebt,
+  setDebtLimit,
+} from './test-lib/vaults.js';
+import {
+  verifyPushedPrice,
+  getPriceFeedRoundId,
+} from './test-lib/price-feed.js';
+import { tryISTBalances, bankSend as sendIST } from './test-lib/psm-lib.js';
 
-export const scale6 = x => BigInt(x * 1_000_000);
-
-test.serial('attempt to open vaults under the minimum amount', async t => {
-  const activeVaultsBefore = await agopsVaults(USER1ADDR);
-  await bankSend(USER1ADDR, `20000000${ATOM_DENOM}`);
-  t.log('active vaults before:', activeVaultsBefore);
-
-  const mint = '3.0';
-  const collateral = '5.0';
-  await t.throwsAsync(() => openVault(USER1ADDR, mint, collateral), {
-    message:
-      /Vault creation requires a minInitialDebt of {"brand":"\[Alleged: IST brand\]","value":"\[5000000n\]"}/,
-  });
+const VAULT_MANAGER = 'manager0';
 
-  const activeVaultsAfter = await agopsVaults(USER1ADDR);
-  t.log('active vaults after:', activeVaultsAfter);
-
-  t.is(
-    activeVaultsAfter.length,
-    activeVaultsBefore.length,
-    'The number of active vaults should remain the same.',
-  );
-});
+const scale6 = x => x * 1_000_000;
 
 test.serial('open new vault', async t => {
+  await bankSend(USER1ADDR, `20000000${ATOM_DENOM}`);
+
   const istBalanceBefore = await getISTBalance(USER1ADDR);
   const activeVaultsBefore = await agopsVaults(USER1ADDR);
-  t.log('uist balance before:', istBalanceBefore);
-  t.log('active vaults before:', activeVaultsBefore);
-
-  await bankSend(USER1ADDR, `20000000${ATOM_DENOM}`);
 
   const mint = '5.0';
   const collateral = '10.0';
@@ -53,14 +45,13 @@ test.serial('open new vault', async t => {
 
   const istBalanceAfter = await getISTBalance(USER1ADDR);
   const activeVaultsAfter = await agopsVaults(USER1ADDR);
-  t.log('uist balance after:', istBalanceAfter);
-  t.log('active vaults after:', activeVaultsAfter);
 
-  t.is(
-    istBalanceBefore + 5,
-    istBalanceAfter,
-    'The IST balance should increase by the minted amount',
+  await tryISTBalances(
+    t,
+    scale6(istBalanceAfter),
+    scale6(istBalanceBefore + 5),
   );
+
   t.is(
     activeVaultsAfter.length,
     activeVaultsBefore.length + 1,
@@ -69,21 +60,13 @@ test.serial('open new vault', async t => {
 });
 
 test.serial('remove collateral', async t => {
-  const activeVaults = await agopsVaults(USER1ADDR);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
-
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const collateralBefore = vaultData.locked.value;
-  t.log('vault collateral before:', collateralBefore);
+  const { vaultID, collateral: collateralBefore } =
+    await getLastVaultFromAddress(USER1ADDR);
 
   await adjustVault(USER1ADDR, vaultID, { wantCollateral: 1.0 });
-  await waitForBlock();
-
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
 
-  const collateralAfter = vaultData.locked.value;
-  t.log('vault collateral after:', collateralAfter);
+  const { collateral: collateralAfter } =
+    await getLastVaultFromAddress(USER1ADDR);
 
   t.is(
     collateralBefore,
@@ -93,20 +76,12 @@ test.serial('remove collateral', async t => {
 });
 
 test.serial('remove IST', async t => {
-  const activeVaults = await agopsVaults(USER1ADDR);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
-
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const debtBefore = vaultData.debtSnapshot.debt.value;
-  t.log('vault debt before:', debtBefore);
+  const { vaultID, debt: debtBefore } =
+    await getLastVaultFromAddress(USER1ADDR);
 
   await adjustVault(USER1ADDR, vaultID, { wantMinted: 1.0 });
-  await waitForBlock();
 
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const debtAfter = vaultData.debtSnapshot.debt.value;
-  t.log('vault debt after:', debtAfter);
+  const { debt: debtAfter } = await getLastVaultFromAddress(USER1ADDR);
 
   t.is(
     debtAfter,
@@ -115,133 +90,289 @@ test.serial('remove IST', async t => {
   );
 });
 
-test.serial('close vault', async t => {
-  const activeVaults = await agopsVaults(USER1ADDR);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
+test.serial('add collateral', async t => {
+  const { vaultID, collateral: collateralBefore } =
+    await getLastVaultFromAddress(USER1ADDR);
+
+  await adjustVault(USER1ADDR, vaultID, { giveCollateral: 1.0 });
+
+  const { collateral: collateralAfter } =
+    await getLastVaultFromAddress(USER1ADDR);
+
+  t.is(
+    collateralAfter,
+    collateralBefore + 1_000_000n,
+    'The vault Collateral should increase after adding some ATOM',
+  );
+});
+
+test.serial('add IST', async t => {
+  const { vaultID, debt: debtBefore } =
+    await getLastVaultFromAddress(USER1ADDR);
 
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const vaultCollateral = vaultData.locked.value;
-  t.log('vault collateral:', vaultCollateral);
+  await adjustVault(USER1ADDR, vaultID, { giveMinted: 1.0 });
 
+  const { debt: debtAfter } = await getLastVaultFromAddress(USER1ADDR);
+
+  t.is(
+    debtAfter,
+    debtBefore - 1_000_000n,
+    'The vault Debt should decrease after adding some IST',
+  );
+});
+
+test.serial('close vault', async t => {
+  const { vaultID, collateral } = await getLastVaultFromAddress(USER1ADDR);
   const atomBalanceBefore = await getBalances([USER1ADDR], ATOM_DENOM);
-  t.log('atom balance before', atomBalanceBefore);
 
-  await closeVault(USER1ADDR, vaultID, 6.03);
-  await waitForBlock();
+  await closeVault(USER1ADDR, vaultID, 6.035);
 
   const atomBalanceAfter = await getBalances([USER1ADDR], ATOM_DENOM);
-  t.log('atom balance after', atomBalanceAfter);
-
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const vaultState = vaultData.vaultState;
-  t.log('vault state:', vaultState);
+  const { state } = await getLastVaultFromAddress(USER1ADDR);
 
   t.is(
     atomBalanceAfter,
-    atomBalanceBefore + vaultCollateral,
+    atomBalanceBefore + collateral,
     'The ATOM balance should increase by the vault collateral amount',
   );
-  t.is(vaultState, 'closed', 'The vault should be in the "closed" state.');
+  t.is(state, 'closed', 'The vault should be in the "closed" state.');
 });
 
-test.serial('open second vault', async t => {
-  const user2Address = await getUser('user2');
-  await bankSend(user2Address, `20000000${ATOM_DENOM}`);
+test.serial(
+  'user cannot open a vault under the minimum initial debt',
+  async t => {
+    await bankSend(GOV1ADDR, `200000000000000000${ATOM_DENOM}`);
+    const activeVaultsBefore = await agopsVaults(GOV1ADDR);
+
+    const minInitialDebt = await getMinInitialDebt();
 
-  const activeVaultsBefore = await agopsVaults(user2Address);
-  t.log('active vaults before:', activeVaultsBefore);
+    const mint = minInitialDebt - 1n;
+    const collateral = mint * 2n;
 
-  const mint = '7.0';
-  const collateral = '11.0';
-  await openVault(user2Address, mint, collateral);
-  await waitForBlock();
+    await t.throwsAsync(
+      () => openVault(GOV1ADDR, mint.toString(), collateral.toString()),
+      {
+        message: /Error: Vault creation requires a minInitialDebt/,
+      },
+    );
 
-  const activeVaultsAfter = await agopsVaults(user2Address);
-  t.log('active vaults after:', activeVaultsAfter);
+    const activeVaultsAfter = await agopsVaults(GOV1ADDR);
+
+    t.is(
+      activeVaultsAfter.length,
+      activeVaultsBefore.length,
+      'The number of active vaults should remain the same.',
+    );
+  },
+);
+
+test.serial('user cannot open a vault above debt limit', async t => {
+  const activeVaultsBefore = await agopsVaults(GOV1ADDR);
+
+  const { availableDebtForMint } = await getAvailableDebtForMint(VAULT_MANAGER);
+
+  const mint = availableDebtForMint + 5n;
+  const collateral = mint * 2n;
+
+  await t.throwsAsync(
+    () => openVault(GOV1ADDR, mint.toString(), collateral.toString()),
+    {
+      message: /Error: Minting.*would hit total debt limit/,
+    },
+  );
+
+  const activeVaultsAfter = await agopsVaults(GOV1ADDR);
 
   t.is(
     activeVaultsAfter.length,
-    activeVaultsBefore.length + 1,
-    `The number of active vaults should increase after opening a new vault.`,
+    activeVaultsBefore.length,
+    `The number of active vaults should stay the same.`,
   );
 });
 
-test.serial('add collateral', async t => {
-  const user2Address = await getUser('user2');
-  const activeVaults = await agopsVaults(user2Address);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
+test.serial('user can open a vault under debt limit', async t => {
+  const istBalanceBefore = await getISTBalance(GOV1ADDR);
+  const activeVaultsBefore = await agopsVaults(GOV1ADDR);
+
+  const { availableDebtForMint } = await getAvailableDebtForMint(VAULT_MANAGER);
 
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const collateralBefore = vaultData.locked.value;
-  t.log('vault collateral before:', collateralBefore);
+  const mint = availableDebtForMint - 1_000_000n;
+  const collateral = availableDebtForMint * 2n;
 
-  await adjustVault(user2Address, vaultID, { giveCollateral: 1.0 });
-  await waitForBlock();
+  await openVault(GOV1ADDR, mint.toString(), collateral.toString());
 
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const collateralAfter = vaultData.locked.value;
-  t.log('vault collateral after:', collateralAfter);
+  const istBalanceAfter = await getISTBalance(GOV1ADDR);
+  const activeVaultsAfter = await agopsVaults(GOV1ADDR);
 
   t.is(
-    collateralBefore,
-    collateralAfter - 1_000_000n,
-    'The vault Collateral should increase after adding some ATOM',
+    istBalanceBefore + Number(mint),
+    istBalanceAfter,
+    'The IST balance should increase by the minted amount',
+  );
+  t.is(
+    activeVaultsAfter.length,
+    activeVaultsBefore.length + 1,
+    `The number of active vaults should increase after opening a new vault.`,
   );
 });
 
-test.serial('add IST', async t => {
-  const user2Address = await getUser('user2');
-  const activeVaults = await agopsVaults(user2Address);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
+test.serial('user cannot increased vault debt above debt limit', async t => {
+  const { vaultID, debt: debtBefore } = await getLastVaultFromAddress(GOV1ADDR);
+
+  const { availableDebtForMint } = await getAvailableDebtForMint(VAULT_MANAGER);
+
+  // The availableDebtForMint + mintFee will surpass the debt limit
+  const mint = Number(availableDebtForMint);
+  await t.throwsAsync(
+    () =>
+      adjustVault(GOV1ADDR, vaultID, {
+        wantMinted: mint,
+      }),
+    {
+      message: /Error: Minting.*would hit total debt limit/,
+    },
+  );
 
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const debtBefore = vaultData.debtSnapshot.debt.value;
-  t.log('vault debt before:', debtBefore);
+  const { debt: debtAfter } = await getLastVaultFromAddress(GOV1ADDR);
 
-  await adjustVault(user2Address, vaultID, { giveMinted: 1.0 });
-  await waitForBlock();
+  t.is(debtAfter, debtBefore, 'The vault Debt should stay the same');
+});
+
+test.serial(
+  'Minting Fee is applied to users debt when creating a vault and minting more IST',
+  async t => {
+    const mint = 5n;
+    const collateral = mint * 2n;
+    await openVault(GOV1ADDR, mint.toString(), collateral.toString());
+
+    const { adjustedToMintAmount } = await calculateMintFee(
+      mint,
+      VAULT_MANAGER,
+    );
+
+    const { vaultID, debt: debtAfterOpenVault } =
+      await getLastVaultFromAddress(GOV1ADDR);
+
+    t.is(
+      debtAfterOpenVault,
+      adjustedToMintAmount.value,
+      'The vault Debt should be equal to mint + fee',
+    );
+
+    await adjustVault(GOV1ADDR, vaultID, { wantMinted: 1.0 });
+
+    const { adjustedToMintAmount: adjustedToMintAmountAfter } =
+      await calculateMintFee(1n, VAULT_MANAGER);
+
+    const { debt: debtAfterAdjustVault } =
+      await getLastVaultFromAddress(GOV1ADDR);
+
+    t.is(
+      debtAfterAdjustVault,
+      debtAfterOpenVault + adjustedToMintAmountAfter.value,
+      'The vault Debt after adjusting should be equal to debt after open + wantMinted + fee',
+    );
+  },
+);
+
+test.serial('confirm that Oracle prices are being received', async t => {
+  /*
+   * The Oracle for ATOM and stATOM brands are being registered in the offer made at file:
+   * a3p-integration/proposals/n:upgrade-next/verifyPushedPrice.js
+   * which is being executed during the use phase of upgrade-next proposal
+   */
+  const ATOMManagerIndex = 0;
+  const BRANDS = ['ATOM'];
+  const BASE_ID = 'n-upgrade';
+  const oraclesByBrand = generateOracleMap(BASE_ID, BRANDS);
+
+  const latestRoundId = await getPriceFeedRoundId(BRANDS[0]);
+  const roundId = latestRoundId + 1;
+
+  await verifyPushedPrice(oraclesByBrand, BRANDS[0], 10, roundId);
+
+  const atomQuote = await getPriceQuote(BRANDS[0]);
+  t.is(
+    atomQuote,
+    '+10000000',
+    'ATOM price quote does not match the expected value',
+  );
 
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const debtAfter = vaultData.debtSnapshot.debt.value;
-  t.log('vault debt after:', debtAfter);
+  const vaultQuote = await getVaultPrices(ATOMManagerIndex);
 
+  t.true(
+    vaultQuote.value[0].amountIn.brand.includes(' ATOM '),
+    'ATOM price quote not found',
+  );
   t.is(
-    debtAfter,
-    debtBefore - 1_000_000n,
-    'The vault Debt should decrease after adding some IST',
+    vaultQuote.value[0].amountOut.value,
+    atomQuote,
+    'Vault price quote does not match the expected ATOM price quote',
   );
 });
 
-test.serial('close second vault', async t => {
-  const user2Address = await getUser('user2');
-  const activeVaults = await agopsVaults(user2Address);
-  const vaultPath = activeVaults[activeVaults.length - 1];
-  const vaultID = vaultPath.split('.').pop();
+test.serial(
+  'Confirm that vaults that existed before the most recent upgrade continue to be useable',
+  async t => {
+    /*
+     * The long-living-vault user is being created and used to open a vault in the n:upgrade-next proposal USE phase.
+     * The offer to open a vault is implemented in a3p-integration/proposals/n:upgrade-next/openVault.js
+     */
+    const user = await getUser('long-living-vault');
 
-  let vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const vaultCollateral = vaultData.locked.value;
-  t.log('vault collateral:', vaultCollateral);
+    const { vaultID, collateral: collateralBefore } =
+      await getLastVaultFromAddress(user);
 
-  const atomBalanceBefore = await getBalances([user2Address], ATOM_DENOM);
-  t.log('atom balance before', atomBalanceBefore);
+    await adjustVault(user, vaultID, { wantCollateral: 1.0 });
 
-  await closeVault(user2Address, vaultID, 6.035);
-  await waitForBlock();
+    const { collateral: collateralAfter } = await getLastVaultFromAddress(user);
 
-  const atomBalanceAfter = await getBalances([user2Address], ATOM_DENOM);
-  t.log('atom balance after', atomBalanceAfter);
+    t.is(
+      collateralBefore,
+      collateralAfter + 1_000_000n,
+      'The vault Collateral should decrease after removing some ATOM',
+    );
 
-  vaultData = await getContractInfo(vaultPath, { agoric, prefix: '' });
-  const vaultState = vaultData.vaultState;
-  t.log('vault state:', vaultState);
+    await closeVault(user, vaultID, 6.03);
 
-  t.is(
-    atomBalanceAfter,
-    atomBalanceBefore + vaultCollateral,
-    'The ATOM balance should increase by the vault collateral amount',
-  );
-  t.is(vaultState, 'closed', 'The vault should be in the "closed" state.');
-});
+    const { state } = await getLastVaultFromAddress(user);
+
+    t.is(state, 'closed', 'The vault should be in the "closed" state.');
+  },
+);
+
+test.serial(
+  'User can pay off debt when totalDebt is above debtLimit',
+  async t => {
+    const mint = '5.0';
+    const collateral = '10.0';
+    await openVault(GOV1ADDR, mint, collateral);
+
+    const { totalDebt: totalDebtBefore } =
+      await getAvailableDebtForMint(VAULT_MANAGER);
+
+    // provision governance wallet to cover transaction fees
+    await sendIST(GOV2ADDR, `1000000uist`, GOV1ADDR);
+
+    const limit = (totalDebtBefore - 10_000_000n) / 1_000_000n;
+    await setDebtLimit(GOV1ADDR, limit);
+
+    const { debtLimit: debtLimitAfter, totalDebt: totalDebtAfter } =
+      await getAvailableDebtForMint(VAULT_MANAGER);
+    t.true(
+      debtLimitAfter < totalDebtAfter,
+      'debtLimit should be less than totalDebt',
+    );
+
+    const { vaultID, debt: vaultDebtBefore } =
+      await getLastVaultFromAddress(GOV1ADDR);
+
+    await adjustVault(GOV1ADDR, vaultID, {
+      giveMinted: Number(vaultDebtBefore) / 1_000_000,
+    });
+
+    const { debt: vaultDebtAfter } = await getLastVaultFromAddress(GOV1ADDR);
+
+    t.is(vaultDebtAfter, 0n, 'The vault Debt should have been erased');
+  },
+);
diff --git a/a3p-integration/proposals/z:acceptance/wallet.test.js b/a3p-integration/proposals/z:acceptance/wallet.test.js
index 7ee2a878202..1c3e80395e8 100644
--- a/a3p-integration/proposals/z:acceptance/wallet.test.js
+++ b/a3p-integration/proposals/z:acceptance/wallet.test.js
@@ -1,4 +1,5 @@
 import test from 'ava';
+import '@endo/init';
 import {
   agoric,
   evalBundles,
diff --git a/a3p-integration/proposals/z:acceptance/yarn.lock b/a3p-integration/proposals/z:acceptance/yarn.lock
index 23e915995d6..a1f4017c2ec 100644
--- a/a3p-integration/proposals/z:acceptance/yarn.lock
+++ b/a3p-integration/proposals/z:acceptance/yarn.lock
@@ -5,6 +5,39 @@ __metadata:
   version: 8
   cacheKey: 10c0
 
+"@agoric/assert@npm:^0.4.0":
+  version: 0.4.0
+  resolution: "@agoric/assert@npm:0.4.0"
+  checksum: 10c0/76f56924a891c5fcbeafce7545530c9e5bfe96dccd05b74dff3a3b9b31e30f60462791f5313afa3090e8966d679ed5628b9e8f50c48168ecfc8c36e8cf345161
+  languageName: node
+  linkType: hard
+
+"@agoric/babel-generator@npm:^7.17.4, @agoric/babel-generator@npm:^7.17.6":
+  version: 7.17.6
+  resolution: "@agoric/babel-generator@npm:7.17.6"
+  dependencies:
+    "@babel/types": "npm:^7.17.0"
+    jsesc: "npm:^2.5.1"
+    source-map: "npm:^0.5.0"
+  checksum: 10c0/59db151ae737bd9b1f21c1589df4c7da9cbf484de5b5cc8352052825c2d977283d975303f55acb54d0210c176cb405da263073ceba1d3a6db65c6e21cc6e663f
+  languageName: node
+  linkType: hard
+
+"@agoric/base-zone@npm:0.1.1-dev-44132c0.0+44132c0":
+  version: 0.1.1-dev-44132c0.0
+  resolution: "@agoric/base-zone@npm:0.1.1-dev-44132c0.0"
+  dependencies:
+    "@agoric/store": "npm:0.9.3-dev-44132c0.0+44132c0"
+    "@endo/common": "npm:^1.2.7"
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/exo": "npm:^1.5.6"
+    "@endo/far": "npm:^1.1.8"
+    "@endo/pass-style": "npm:^1.4.6"
+    "@endo/patterns": "npm:^1.4.6"
+  checksum: 10c0/66bffee9feb03f5c940b5072b0f291ea4daec8fbc7a20e688773a41d90a75e1c83a59e0b0947f6a14448c88aab83ee3054db432903cf7c05168b6f76e0424fef
+  languageName: node
+  linkType: hard
+
 "@agoric/base-zone@npm:0.1.1-dev-d7c994b.0+d7c994b":
   version: 0.1.1-dev-d7c994b.0
   resolution: "@agoric/base-zone@npm:0.1.1-dev-d7c994b.0"
@@ -20,6 +53,25 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@agoric/ertp@npm:0.16.3-dev-44132c0.0+44132c0":
+  version: 0.16.3-dev-44132c0.0
+  resolution: "@agoric/ertp@npm:0.16.3-dev-44132c0.0"
+  dependencies:
+    "@agoric/notifier": "npm:0.6.3-dev-44132c0.0+44132c0"
+    "@agoric/store": "npm:0.9.3-dev-44132c0.0+44132c0"
+    "@agoric/vat-data": "npm:0.5.3-dev-44132c0.0+44132c0"
+    "@agoric/zone": "npm:0.2.3-dev-44132c0.0+44132c0"
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/eventual-send": "npm:^1.2.7"
+    "@endo/far": "npm:^1.1.8"
+    "@endo/marshal": "npm:^1.6.1"
+    "@endo/nat": "npm:^5.0.12"
+    "@endo/patterns": "npm:^1.4.6"
+    "@endo/promise-kit": "npm:^1.1.7"
+  checksum: 10c0/ff8232603cb00861869f8708aed26d7c9437f616c6d86ee6163af4819f8220ef5d280f8bdce1ea51818326faabc71a2513b4f3f82688e7454d1ff51c57e95dcd
+  languageName: node
+  linkType: hard
+
 "@agoric/ertp@npm:dev":
   version: 0.16.3-dev-d7c994b.0
   resolution: "@agoric/ertp@npm:0.16.3-dev-d7c994b.0"
@@ -39,6 +91,26 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@agoric/internal@npm:0.3.3-dev-44132c0.0+44132c0":
+  version: 0.3.3-dev-44132c0.0
+  resolution: "@agoric/internal@npm:0.3.3-dev-44132c0.0"
+  dependencies:
+    "@agoric/base-zone": "npm:0.1.1-dev-44132c0.0+44132c0"
+    "@endo/common": "npm:^1.2.7"
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/far": "npm:^1.1.8"
+    "@endo/init": "npm:^1.1.6"
+    "@endo/marshal": "npm:^1.6.1"
+    "@endo/pass-style": "npm:^1.4.6"
+    "@endo/patterns": "npm:^1.4.6"
+    "@endo/promise-kit": "npm:^1.1.7"
+    "@endo/stream": "npm:^1.2.7"
+    anylogger: "npm:^0.21.0"
+    jessie.js: "npm:^0.3.4"
+  checksum: 10c0/85c80e2adf3bae4811d8b8c38073044d44519f44a366b79e2a74be774062adf33f2d33628f1957a15df7fc0844fa3b959308a32b6de8d79aee0ffe4ba9d39de6
+  languageName: node
+  linkType: hard
+
 "@agoric/internal@npm:0.3.3-dev-d7c994b.0+d7c994b, @agoric/internal@npm:dev":
   version: 0.3.3-dev-d7c994b.0
   resolution: "@agoric/internal@npm:0.3.3-dev-d7c994b.0"
@@ -59,6 +131,32 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@agoric/kmarshal@npm:0.1.1-dev-44132c0.0+44132c0":
+  version: 0.1.1-dev-44132c0.0
+  resolution: "@agoric/kmarshal@npm:0.1.1-dev-44132c0.0"
+  dependencies:
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/far": "npm:^1.1.8"
+    "@endo/marshal": "npm:^1.6.1"
+  checksum: 10c0/edbb6f2cd7417d1d428dfd9fe7a0155f5565e0733dba405b3521c093a771b4fb1c8c08999bf051f05392f9065829ba5d901d2079a3eb75c2a0189c682ecf052e
+  languageName: node
+  linkType: hard
+
+"@agoric/notifier@npm:0.6.3-dev-44132c0.0+44132c0":
+  version: 0.6.3-dev-44132c0.0
+  resolution: "@agoric/notifier@npm:0.6.3-dev-44132c0.0"
+  dependencies:
+    "@agoric/internal": "npm:0.3.3-dev-44132c0.0+44132c0"
+    "@agoric/vat-data": "npm:0.5.3-dev-44132c0.0+44132c0"
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/far": "npm:^1.1.8"
+    "@endo/marshal": "npm:^1.6.1"
+    "@endo/patterns": "npm:^1.4.6"
+    "@endo/promise-kit": "npm:^1.1.7"
+  checksum: 10c0/7db28a1f92ac72ec9f0301d30db32974a4b240d3699a9effa6198fdcc77340d76cb7c60b932f18cd0ff9eb2baea7fa0d5e44c2611cea91f3053cfafcdbb465cc
+  languageName: node
+  linkType: hard
+
 "@agoric/notifier@npm:0.6.3-dev-d7c994b.0+d7c994b":
   version: 0.6.3-dev-d7c994b.0
   resolution: "@agoric/notifier@npm:0.6.3-dev-d7c994b.0"
@@ -74,6 +172,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@agoric/store@npm:0.9.3-dev-44132c0.0+44132c0":
+  version: 0.9.3-dev-44132c0.0
+  resolution: "@agoric/store@npm:0.9.3-dev-44132c0.0"
+  dependencies:
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/exo": "npm:^1.5.6"
+    "@endo/marshal": "npm:^1.6.1"
+    "@endo/pass-style": "npm:^1.4.6"
+    "@endo/patterns": "npm:^1.4.6"
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   resolution: "@agoric/store@npm:0.9.3-dev-d7c994b.0"
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+  resolution: "@agoric/swing-store@npm:0.9.2-dev-44132c0.0"
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+    "@endo/check-bundle": "npm:^1.0.11"
+    "@endo/errors": "npm:^1.2.7"
+    "@endo/nat": "npm:^5.0.12"
+    better-sqlite3: "npm:^9.1.1"
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+    "@endo/errors": "npm:^1.2.7"
+    "@endo/eventual-send": "npm:^1.2.7"
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+    semver: "npm:^6.3.0"
+    tmp: "npm:^0.2.1"
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   resolution: "@agoric/synthetic-chain@npm:0.3.0"
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+    xsrepl: src/xsrepl
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+  resolution: "@agoric/zone@npm:0.2.3-dev-44132c0.0"
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+  languageName: node
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+  languageName: node
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+  languageName: node
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+  resolution: "hasown@npm:2.0.2"
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+  languageName: node
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+  languageName: node
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+  languageName: node
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+
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+  languageName: node
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+
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   resolution: "is-number@npm:7.0.0"
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+  resolution: "is-reference@npm:1.2.1"
+  dependencies:
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+  checksum: 10c0/7dc819fc8de7790264a0a5d531164f9f5b9ef5aa1cd05f35322d14db39c8a2ec78fd5d4bf57f9789f3ddd2b3abeea7728432b759636157a42db12a9e8c3b549b
+  languageName: node
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+
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+  resolution: "js-tokens@npm:4.0.0"
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+  languageName: node
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+
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+  version: 2.5.2
+  resolution: "jsesc@npm:2.5.2"
+  bin:
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+  languageName: node
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+  resolution: "jsesc@npm:3.0.2"
+  bin:
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+  languageName: node
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+
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+  resolution: "magic-string@npm:0.25.9"
+  dependencies:
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+  languageName: node
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+
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+  version: 3.1.1
+  resolution: "microtime@npm:3.1.1"
+  dependencies:
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+    node-gyp: "npm:latest"
+    node-gyp-build: "npm:^4.4.0"
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+  languageName: node
+  linkType: hard
+
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+  resolution: "node-addon-api@npm:5.1.0"
+  dependencies:
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+  languageName: node
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+
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+  resolution: "path-parse@npm:1.0.7"
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+  languageName: node
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+
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+  languageName: node
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+
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+  resolution: "resolve@npm:1.22.8"
+  dependencies:
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+    supports-preserve-symlinks-flag: "npm:^1.0.0"
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+  languageName: node
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+  version: 1.22.8
+  resolution: "resolve@patch:resolve@npm%3A1.22.8#optional!builtin<compat/resolve>::version=1.22.8&hash=c3c19d"
+  dependencies:
+    is-core-module: "npm:^2.13.0"
+    path-parse: "npm:^1.0.7"
+    supports-preserve-symlinks-flag: "npm:^1.0.0"
+  bin:
+    resolve: bin/resolve
+  checksum: 10c0/0446f024439cd2e50c6c8fa8ba77eaa8370b4180f401a96abf3d1ebc770ac51c1955e12764cde449fde3fff480a61f84388e3505ecdbab778f4bef5f8212c729
+  languageName: node
+  linkType: hard
+
 "retry@npm:^0.12.0":
   version: 0.12.0
   resolution: "retry@npm:0.12.0"
@@ -2591,6 +3629,38 @@ __metadata:
   languageName: node
   linkType: hard
 
+"rollup-plugin-string@npm:^3.0.0":
+  version: 3.0.0
+  resolution: "rollup-plugin-string@npm:3.0.0"
+  dependencies:
+    rollup-pluginutils: "npm:^2.4.1"
+  checksum: 10c0/83bbc2230d5271bc014739d52320b66cd4071fc4f7181369533809e4a3f0269b6cb4873caa96426396b36f694023a9f68f5de7a94254e1f2764ca6bacff61995
+  languageName: node
+  linkType: hard
+
+"rollup-pluginutils@npm:^2.4.1":
+  version: 2.8.2
+  resolution: "rollup-pluginutils@npm:2.8.2"
+  dependencies:
+    estree-walker: "npm:^0.6.1"
+  checksum: 10c0/20947bec5a5dd68b5c5c8423911e6e7c0ad834c451f1a929b1f4e2bc08836ad3f1a722ef2bfcbeca921870a0a283f13f064a317dc7a6768496e98c9a641ba290
+  languageName: node
+  linkType: hard
+
+"rollup@npm:^2.79.1":
+  version: 2.79.2
+  resolution: "rollup@npm:2.79.2"
+  dependencies:
+    fsevents: "npm:~2.3.2"
+  dependenciesMeta:
+    fsevents:
+      optional: true
+  bin:
+    rollup: dist/bin/rollup
+  checksum: 10c0/bc3746c988d903c2211266ddc539379d53d92689b9cc5c2b4e3ae161689de9af491957a567c629b6cc81f48d0928a7591fc4c383fba68a48d2966c9fb8a2bce9
+  languageName: node
+  linkType: hard
+
 "root-workspace-0b6124@workspace:.":
   version: 0.0.0-use.local
   resolution: "root-workspace-0b6124@workspace:."
@@ -2599,6 +3669,7 @@ __metadata:
     "@agoric/internal": "npm:dev"
     "@agoric/store": "npm:dev"
     "@agoric/synthetic-chain": "npm:^0.3.0"
+    "@agoric/zoe": "npm:dev"
     "@endo/errors": "npm:^1.2.2"
     "@endo/far": "npm:^1.1.5"
     "@endo/init": "npm:^1.1.4"
@@ -2633,7 +3704,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"semver@npm:^6.0.0":
+"semver@npm:^6.0.0, semver@npm:^6.3.0":
   version: 6.3.1
   resolution: "semver@npm:6.3.1"
   bin:
@@ -2660,6 +3731,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"ses@npm:^0.18.8":
+  version: 0.18.8
+  resolution: "ses@npm:0.18.8"
+  dependencies:
+    "@endo/env-options": "npm:^0.1.4"
+  checksum: 10c0/2c5c5e40f6a8edee081e1c62b65316128823070a68858c6ee45810fb14464d14a9f82499bf4d1cb274b46e35e199f7c55565755236a708d25ace493da206083f
+  languageName: node
+  linkType: hard
+
 "ses@npm:^1.9.1":
   version: 1.9.1
   resolution: "ses@npm:1.9.1"
@@ -2769,6 +3849,34 @@ __metadata:
   languageName: node
   linkType: hard
 
+"source-map-js@npm:^1.2.0":
+  version: 1.2.1
+  resolution: "source-map-js@npm:1.2.1"
+  checksum: 10c0/7bda1fc4c197e3c6ff17de1b8b2c20e60af81b63a52cb32ec5a5d67a20a7d42651e2cb34ebe93833c5a2a084377e17455854fee3e21e7925c64a51b6a52b0faf
+  languageName: node
+  linkType: hard
+
+"source-map@npm:^0.5.0":
+  version: 0.5.7
+  resolution: "source-map@npm:0.5.7"
+  checksum: 10c0/904e767bb9c494929be013017380cbba013637da1b28e5943b566031e29df04fba57edf3f093e0914be094648b577372bd8ad247fa98cfba9c600794cd16b599
+  languageName: node
+  linkType: hard
+
+"source-map@npm:^0.7.3":
+  version: 0.7.4
+  resolution: "source-map@npm:0.7.4"
+  checksum: 10c0/dc0cf3768fe23c345ea8760487f8c97ef6fca8a73c83cd7c9bf2fde8bc2c34adb9c0824d6feb14bc4f9e37fb522e18af621543f1289038a66ac7586da29aa7dc
+  languageName: node
+  linkType: hard
+
+"sourcemap-codec@npm:^1.4.8":
+  version: 1.4.8
+  resolution: "sourcemap-codec@npm:1.4.8"
+  checksum: 10c0/f099279fdaae070ff156df7414bbe39aad69cdd615454947ed3e19136bfdfcb4544952685ee73f56e17038f4578091e12b17b283ed8ac013882916594d95b9e6
+  languageName: node
+  linkType: hard
+
 "sprintf-js@npm:^1.1.3":
   version: 1.1.3
   resolution: "sprintf-js@npm:1.1.3"
@@ -2887,6 +3995,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"supports-preserve-symlinks-flag@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "supports-preserve-symlinks-flag@npm:1.0.0"
+  checksum: 10c0/6c4032340701a9950865f7ae8ef38578d8d7053f5e10518076e6554a9381fa91bd9c6850193695c141f32b21f979c985db07265a758867bac95de05f7d8aeb39
+  languageName: node
+  linkType: hard
+
 "tar-fs@npm:^2.0.0":
   version: 2.1.1
   resolution: "tar-fs@npm:2.1.1"
@@ -2940,6 +4055,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tmp@npm:^0.2.1":
+  version: 0.2.3
+  resolution: "tmp@npm:0.2.3"
+  checksum: 10c0/3e809d9c2f46817475b452725c2aaa5d11985cf18d32a7a970ff25b568438e2c076c2e8609224feef3b7923fa9749b74428e3e634f6b8e520c534eef2fd24125
+  languageName: node
+  linkType: hard
+
 "to-regex-range@npm:^5.0.1":
   version: 5.0.1
   resolution: "to-regex-range@npm:5.0.1"
@@ -3008,6 +4130,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"undici-types@npm:~6.19.8":
+  version: 6.19.8
+  resolution: "undici-types@npm:6.19.8"
+  checksum: 10c0/078afa5990fba110f6824823ace86073b4638f1d5112ee26e790155f481f2a868cc3e0615505b6f4282bdf74a3d8caad715fd809e870c2bb0704e3ea6082f344
+  languageName: node
+  linkType: hard
+
 "unicorn-magic@npm:^0.1.0":
   version: 0.1.0
   resolution: "unicorn-magic@npm:0.1.0"