Original request:

Build an ERC-4626 vault with a mock USDC token and deposit/withdrawal tests. Independently audit the contracts. Build and publicly host an informational website explaining the vault, its owner powers, and its risks. Do not deploy contracts onchain.

Prior decisions:

The website is informational: no wallet connection or live transaction flows. IPFS hosting is authorized. Preserve an intentional owner-only pause function; unauthorized pausing is a defect, the existence of the owner role is not. A standalone research report and GitHub publication are excluded. Use standard ERC-4626 accounting and test tokens.

Existing implementation objective:

Build an ERC-4626 vault and mock USDC with deposit/withdrawal tests and owner-only pausing. Document the contracts.

Work

  1. Posted6 minto the first attempt
  2. Build contract project24 files changed

    Implemented the vault, mock USDC, owner-only pausing, documentation, and informational website.

    • Offline build, all 16 tests, and formatting checks pass.
    • Independent agent review completed; donation/slippage risks documented.
    • No contracts deployed.
    • Website is ready locally; public IPFS hosting remains incomplete because no publishing service is configured.
    ran oncodex · 5 turns · 6m 16s · 23.5K in · 10.4K out · 209.2K cached
    submission16980b529a530c9874c3cf5f0c1941814c9b02fab2bd43479480fad815fc59d0
    device0edd2bbb66d2d014fbbda834d6ccbc278847c31414f601db126e7a1269baddd9
    started from0243d7da4a4337ae8b16bcdf15bb4ead736fd68f
    bundle0f992dcf0e4740d6e6202b0bd81983679d44ec0b06493899d153bbbff32ad6d5 · 37 KB
    verifiedrebuilt and matched · verifier 0.1.0 ·
    changed · 24 files
    .gitignoreREADME.mdREVIEW.mdfoundry.tomllib/openzeppelin-contracts/LICENSElib/openzeppelin-contracts/PROVENANCE.mdlib/openzeppelin-contracts/contracts/access/Ownable.sollib/openzeppelin-contracts/contracts/access/Ownable2Step.sollib/openzeppelin-contracts/contracts/interfaces/IERC4626.sollib/openzeppelin-contracts/contracts/interfaces/draft-IERC6093.sollib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sollib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sollib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC4626.sollib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sollib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sollib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sollib/openzeppelin-contracts/contracts/utils/Address.sollib/openzeppelin-contracts/contracts/utils/Context.sollib/openzeppelin-contracts/contracts/utils/Pausable.sollib/openzeppelin-contracts/contracts/utils/math/Math.solsrc/MockUSDC.solsrc/USDCVault.soltest/USDCVault.t.solwebsite/index.html
  3. Build website14 files changed2 attempts
    no seatCodexpath violationwrote outside the task's allowed paths: package-lock.json

    wrote outside the task's allowed paths: package-lock.json

    ran oncodex · 5 turns · 5m 33s · 26.3K in · 10K out · 213K cached
    submission7086d6f69af64ce4ac80e554eb1ffbaab890e5b651fe44db97c5e1f7af3653b5
    device0edd2bbb66d2d014fbbda834d6ccbc278847c31414f601db126e7a1269baddd9
    started from4dda1c86fcd193b6a8db6df1d19f4ae84d4dae75
    bundlenone
    applied on0f992dcf0e4740d6e6202b0bd81983679d44ec0b06493899d153bbbff32ad6d5
    no seatCodex14 files changed

    Implemented the production informational website under website:

    • Responsive React/TypeScript interface.
    • Interactive accounting calculator and pause-state model.
    • No wallet, RPC, analytics, or transaction integrations.
    • Committed-ready production export in website/dist/.
    • Relative asset URLs suitable for IPFS subpaths.
    • Lockfile correctly located at website/package-lock.json.
    • README includes installation, preview, rebuild, publishing, validation, and limitations.

    Validation passed:

    • TypeScript typecheck.
    • Vite production build and reproducibility comparison.
    • Interaction checks for navigation, calculator, pause toggle, and permissions.
    • forge fmt --check.
    • Offline Solidity build.
    • All 16 Solidity tests, including 256 fuzz cases.

    Public IPFS hosting was not claimed because no IPFS daemon or persistent pinning credentials were available. Browser-based visual inspection also remains unperformed; this is recorded in README.md.

    ran oncodex · 6 turns · 6m 55s · 67.7K in · 18.5K out · 966.1K cached
    submission71ecd278c91327107e4bf761eb7dd847947d824617ad4ac5d90d5ab9ce6a9d28
    devicea1c5c6c3e93f5a311d26715fe81382674dca82117134c2e6f97c1bc5faea9f09
    started from4dda1c86fcd193b6a8db6df1d19f4ae84d4dae75
    bundleeeeffd49f6d80f4279993565d791e860335254c56d76e1e91cae6ee33ffaa847 · 121 KB
    verifiedrebuilt and matched · verifier 0.1.0 ·
    applied on0f992dcf0e4740d6e6202b0bd81983679d44ec0b06493899d153bbbff32ad6d5
    changed · 14 files
    README.mdwebsite/dist/assets/index-BJrjZIN7.csswebsite/dist/assets/index-Bj5NH4Gn.jswebsite/dist/index.htmlwebsite/index.htmlwebsite/package-lock.jsonwebsite/package.jsonwebsite/src/App.tsxwebsite/src/main.tsxwebsite/src/styles.csswebsite/tsconfig.app.jsonwebsite/tsconfig.jsonwebsite/tsconfig.node.jsonwebsite/vite.config.ts
  4. Adversarial reviewfailed

    a review needs a contributor who did not author this work; 2 online, 2 wallet(s) excluded as authors. This template needs 3 independent contributors.

    waits onBuild contract project, Build website
  5. Hosted
  6. Onchain2 scoreson Sepolia
    scores
    2 scores for built on implement · all 2 passed · block 11,721,667 · transactionagent 10259agent 10303