# Moonwell MIP-B08 Proposal Diff Report This document reports the impact of the execution of [MIP-B08 proposal](https://forum.moonwell.fi/t/proposal-onboard-wsteth-as-collateral-on-base-deployment/667) on Moonwell Base. All diffs detected by the simulation are highlighted in orange The simulation executes the proposal on chain on a local fork. The state of the protocol is compared before and after the proposal is executed. ## Proposal calldata ``` 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``` ## Execution results MIP-B08 was successfully executed on a Hardhat fork at block [#6295939](https://basescan.org/block/6295939) (Nov-07-2023 06:20:25 PM +UTC) * ✅ No regression detected on already existing markets (USDC, USDbC, DAI, ETH, cbETH) * ✅ No difference in liquidity for all existing accounts * ✅ wstETH market is correctly initialized * ✅ Decimals for all parameters are correct * ✅ All borrow-side reward rates are greater than 0 * ✅ Hundred Finance exploit is correctly mitigated (market total supply is greater than 0) * ✅ Parameters are same as specified in proposal * ✅ The proposal passes [sanity check tests](#sanity-check-tests) Original execution report (including raw contract values): {% file src="" %} ### Global parameters

Parameter	Liquidation Incentive	Close Factor
Before	110%	0.5%
After	110%	0.5%

### mUSDC [View on block explorer](https://basescan.org/address/0xedc817a28e8b93b03976fbd4a3ddbc9f7d176c22)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	0.82	121.951%	5,000,000 5,005,000 USD	10,000,000 5,005,000 USD
After	0.82	121.951%	5,000,000 5,005,000 USD	10,000,000 5,005,000 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe
After	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe

Key borrow rates	Base	Kink	Max
Before	0%	3.6%	175.6%
After	0%	3.6%	175.6%

Key supply rates	Base	Kink	Max
Before	0%	2.448%	149.26%
After	0%	2.448%	149.26%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%
After	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%
After	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	4,666,590.28 4,671,256.87 USD	3,563,037.674 3,566,600.712 USD	76.352%	46.666%	71.261%	2.23% 5.986% Total	3.436% 3.436% Total
After	4,666,590.28 4,671,256.87 USD	3,563,037.674 3,566,600.712 USD	76.352%	46.666%	71.261%	2.23% 5.986% Total	3.436% 3.436% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	1.141	3.756%
After	1.141	3.756%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

### mUSDC [View on block explorer](https://basescan.org/address/0x703843C3379b52F9FF486c9f5892218d2a065cC8)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	0.8	125%	4,000,000 3,999,696 USD	5,000,000 3,999,696 USD
After	0.8	125%	4,000,000 3,999,696 USD	5,000,000 3,999,696 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe
After	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe

Key borrow rates	Base	Kink	Max
Before	0%	3.6%	175.6%
After	0%	3.6%	175.6%

Key supply rates	Base	Kink	Max
Before	0%	2.448%	149.26%
After	0%	2.448%	149.26%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%
After	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%
After	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	1,686,380.582 1,686,252.417 USD	1,016,104.578 1,016,027.354 USD	60.254%	33.728%	25.403%	1.389% 1.389% Total	2.711% 2.711% Total
After	1,686,380.582 1,686,252.417 USD	1,016,104.578 1,016,027.354 USD	60.254%	33.728%	25.403%	1.389% 1.389% Total	2.711% 2.711% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

### mWETH [View on block explorer](https://basescan.org/address/0x628ff693426583D9a7FB391E54366292F509D457)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	0.8	125%	6,300 11,943,855 USD	10,500 11,943,855 USD
After	0.8	125%	6,300 11,943,855 USD	10,500 11,943,855 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	1%	0.037	0.8	4.8	0.25	0x142DCAEC322aAA25141B2597bf348487aDBd596d
After	1%	0.037	0.8	4.8	0.25	0x142DCAEC322aAA25141B2597bf348487aDBd596d

Key borrow rates	Base	Kink	Max
Before	1%	3.96%	99.96%
After	1%	3.96%	99.96%

Key supply rates	Base	Kink	Max
Before	0%	2.376%	74.97%
After	0%	2.376%	74.97%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	1%	1.37%	1.74%	2.11%	2.48%	2.85%	3.22%	3.59%	3.96%	51.96%	99.96%
After	1%	1.37%	1.74%	2.11%	2.48%	2.85%	3.22%	3.59%	3.96%	51.96%	99.96%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.103%	0.261%	0.475%	0.744%	1.069%	1.449%	1.885%	2.376%	35.073%	74.97%
After	0%	0.103%	0.261%	0.475%	0.744%	1.069%	1.449%	1.885%	2.376%	35.073%	74.97%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	4,183.132 7,930,589.964 USD	2,113.415 4,006,717.238 USD	50.522%	39.839%	33.546%	1.087% 5.512% Total	2.869% 2.869% Total
After	4,183.132 7,930,589.964 USD	2,113.415 4,006,717.238 USD	50.522%	39.839%	33.546%	1.087% 5.512% Total	2.869% 2.869% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	2.282	4.424%
After	2.282	4.424%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

### mcbETH [View on block explorer](https://basescan.org/address/0x3bf93770f2d4a794c3d9EBEfBAeBAE2a8f09A5E5)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	0.75	133.333%	1,000 1,997,110 USD	4,000 1,997,110 USD
After	0.75	133.333%	1,000 1,997,110 USD	4,000 1,997,110 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	0%	0.07	0.45	3.15	0.25	0x78Fe5d0427E669ba9F964C3495fF381a805a0487
After	0%	0.07	0.45	3.15	0.25	0x78Fe5d0427E669ba9F964C3495fF381a805a0487

Key borrow rates	Base	Kink	Max
Before	0%	3.15%	176.4%
After	0%	3.15%	176.4%

Key supply rates	Base	Kink	Max
Before	0%	1.063%	132.3%
After	0%	1.063%	132.3%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.7%	1.4%	2.1%	2.8%	18.9%	50.4%	81.9%	113.4%	144.9%	176.4%
After	0%	0.7%	1.4%	2.1%	2.8%	18.9%	50.4%	81.9%	113.4%	144.9%	176.4%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.052%	0.21%	0.472%	0.84%	7.087%	22.68%	42.997%	68.04%	97.807%	132.3%
After	0%	0.052%	0.21%	0.472%	0.84%	7.087%	22.68%	42.997%	68.04%	97.807%	132.3%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	2,059.421 4,112,890.98 USD	359.018 716,998.907 USD	17.433%	51.486%	35.902%	0.16% 4.425% Total	1.22% 1.22% Total
After	2,059.421 4,112,890.98 USD	359.018 716,998.907 USD	17.433%	51.486%	35.902%	0.16% 4.425% Total	1.22% 1.22% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	1.141	4.266%
After	1.141	4.266%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

### mwstETH [View on block explorer](https://basescan.org/address/0x627Fe393Bc6EdDA28e99AE648fD6fF362514304b)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	-	-	- - USD	None - USD
After	0.75	133.333%	0.05 108.481 USD	0.1 216.961 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	-	-	-	-	-	-
After	0%	0.07	0.45	3.15	0.25	0x1007100Ffc1aC1e63813Fb983bb3D3a8DF1CC193

Key borrow rates	Base	Kink	Max
Before	-	-	-
After	0%	3.15%	176.4%

Key supply rates	Base	Kink	Max
Before	-	-	-
After	0%	1.063%	132.3%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	-	-	-	-	-	-	-	-	-	-	-
After	0%	0.7%	1.4%	2.1%	2.8%	18.9%	50.4%	81.9%	113.4%	144.9%	176.4%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	-	-	-	-	-	-	-	-	-	-	-
After	0%	0.052%	0.21%	0.472%	0.84%	7.087%	22.68%	42.997%	68.04%	97.807%	132.3%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	- - USD	- - USD	-	-	-	- - Total	- - Total
After	0 0.002 USD	0 0 USD	0%	-	-	0% 0% Total	0% ∞% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	-	-
After	0	0%

Borrow-side	Emissions per sec	APR
Before	-	-
After	0	∞%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	-	-
After	0	0%

Borrow-side	Emissions per sec	APR
Before	-	-
After	0	∞%

### mDAI [View on block explorer](https://basescan.org/address/0x73b06D8d18De422E269645eaCe15400DE7462417)

Parameter	Collateral Factor	Implied Collateral Ratio	Borrow Cap	Supply Cap
Before	0.82	121.951%	5,000,000 4,996,600 USD	10,000,000 4,996,600 USD
After	0.82	121.951%	5,000,000 4,996,600 USD	10,000,000 4,996,600 USD

IRM Parameter	Base rate	Multiplier	Kink	Jump Multiplier	Reserve Factor	Contract
Before	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe
After	0%	0.045	0.8	8.6	0.15	0x492dcEF1fc5253413fC5576B9522840a1A774DCe

Key borrow rates	Base	Kink	Max
Before	0%	3.6%	175.6%
After	0%	3.6%	175.6%

Key supply rates	Base	Kink	Max
Before	0%	2.448%	149.26%
After	0%	2.448%	149.26%

Borrow rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%
After	0%	0.45%	0.9%	1.35%	1.8%	2.25%	2.7%	3.15%	3.6%	89.6%	175.6%

Supply rates	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Before	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%
After	0%	0.038%	0.153%	0.344%	0.612%	0.956%	1.377%	1.874%	2.448%	68.544%	149.26%

Market State	Total Supply	Total Borrows	Utilization	Supply cap utilization	Borrow cap utilization	Supply rate	Borrow rate
Before	4,216,758.173 4,213,890.778 USD	1,894,275.479 1,892,987.372 USD	44.923%	42.168%	37.886%	0.772% 4.935% Total	2.022% 2.022% Total
After	4,216,758.173 4,213,890.778 USD	1,894,275.479 1,892,987.372 USD	44.923%	42.168%	37.886%	0.772% 4.935% Total	2.022% 2.022% Total

#### WELL Reward Stream

Supply-side	Emissions per sec	APR
Before	1.141	4.163%
After	1.141	4.163%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

#### USDC Reward Stream

Supply-side	Emissions per sec	APR
Before	0	0%
After	0	0%

Borrow-side	Emissions per sec	APR
Before	0	0%
After	0	0%

### Liquidatable accounts The table below lists accounts that will be at risk of liquidation once the proposal is passed. Total liquidatable accounts: 0

Accounts	Free collateral Before (USD)	Free collateral After (USD)	Diff (USD)
Nothing to display

### Impacted accounts The table is filtered for accounts have at least 1 borrow transaction. Liquidatable accounts count: 0

Accounts	Free collateral Before (USD)	Free collateral After (USD)	Diff (USD)
Nothing to display

### Sanity check tests 4 unit tests failed. All of those tests were expected to fail given the very low caps.

4 tests failed:
1) wstETH
    borrow cap
      X should be within sane range

2) wstETH
    borrow cap
      X should be less than underlying token total supply

3) wstETH
    supply cap
      X should be within sane range

4) wstETH
    supply cap
      X should be less than underlying token total supply
      
MIP-B06 sanity check tests  
  Global governance parameters
      close factor
        ✔ should be within sane range
  USDC
    borrow cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      ✔ should be less than underlying token total supply (132ms)
      ✔ user cannot borrow more than borrow cap (10984ms)
    supply cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      ✔ should be less than underlying token total supply (75ms)
      ✔ user cannot deposit more than supply cap (1373ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (60424ms)
      ✔ should leave enough buffer for liquidation incentive

  USDbC
    borrow cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      ✔ should be less than underlying token total supply (124ms)
      ✔ user cannot borrow more than borrow cap (10578ms)
    supply cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      ✔ should be less than underlying token total supply (76ms)
      ✔ user cannot deposit more than supply cap (1357ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (56181ms)
      ✔ should leave enough buffer for liquidation incentive
  
  ETH
    borrow cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      ✔ should be less than underlying token total supply (114ms)
      ✔ user cannot borrow more than borrow cap
    supply cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      ✔ should be less than underlying token total supply (74ms)
      ✔ user cannot deposit more than supply cap (1347ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (67284ms)
      ✔ should leave enough buffer for liquidation incentive
      
  cbETH
    borrow cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      ✔ should be less than underlying token total supply (119ms)
      ✔ user cannot borrow more than borrow cap
    supply cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      ✔ should be less than underlying token total supply (75ms)
      ✔ user cannot deposit more than supply cap (1381ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (10082ms)
      ✔ should leave enough buffer for liquidation incentive
  
  DAI
    borrow cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      ✔ should be less than underlying token total supply (129ms)
      ✔ user cannot borrow more than borrow cap
    supply cap
      ✔ should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      ✔ should be less than underlying token total supply (75ms)
      ✔ user cannot deposit more than supply cap (1345ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (17280ms)
      ✔ should leave enough buffer for liquidation incentive

  wstETH
    borrow cap
      X should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 0.25x
      ✔ should be less than supply cap
      X should be less than underlying token total supply
      ✔ user cannot borrow more than borrow cap (10829ms)
    supply cap
      X should be within sane range
      ✔ should not be increased by more than 4x
      ✔ should not be decreased by more than 4x
      X should be less than underlying token total supply
      ✔ user cannot deposit more than supply cap (1359ms)
    interest rate model
      ✔ kink should be within sane range
      ✔ base supply rate should be within sane range
      ✔ base borrow rate should be within sane range
      ✔ max supply rate should be within sane range
      ✔ max borrow rate should be within sane range
    collateral factor
      ✔ should not drastically change
      ✔ should be within sane range
      ✔ should make no account liquidatable (17280ms)
      ✔ should leave enough buffer for liquidation incentive