Implemented Yolo (YOLO) with 18 decimals and 1,000,000,000 tokens minted once to the deployer.

• forge build, forge test, and forge fmt --check pass.
• Specified fuzz seed used; 35 unit/fuzz tests and both stateful invariants pass.
• Dependencies vendored for offline builds.
• Deployment assumptions and operational responsibilities documented in README.md.

Full factory/Uniswap integration remains for the external launch verifier.

Created launch.json matching the accepted Yolo constructor, exact supply, and required pool and economics values.

forge build succeeded. forge test passed all 36 tests with the supplied fuzz seed. Only launch.json changed outside permitted scratch artifacts.

The review is complete. The findings file is in place with an empty findings list and nine coverage rows, and the working tree holds no stray files.

Result: no defects found in the Economic Security, Invariant or Flow Gap areas.

What the token is. src/Yolo.sol is a 16-line contract that inherits OpenZeppelin ERC-20 v5.0.2 with no overrides and mints one billion tokens with 18 decimals to the deployer in the constructor. The vendored ERC20.sol is byte-identical to upstream v5.0.2 (SHA-256 matched against the GitHub tag and the lock file).

What I checked against each guide.

• Economic Security: no external dependencies, oracles, callbacks or sentinel-address paths exist. Token misbehaviour items (fee, rebase, pause, blacklist) do not apply because no transfer path is overridden. Every ERC-20 guarantee the README claims holds at the boundary values.
• Invariant: the sum of balances always equals total supply at exactly 1e27. Only the constructor reaches the mint helper, the burn helper is unreachable, and the existing stateful invariant suite over 8,192 handler calls matched an independent ledger. The manifest supply, the constant and the test constant all agree.
• Flow Gap: I traced the launch seams with a scratch test. The 10/50/40 split in basis points sums to the whole supply with zero dust. A pool-manager-style allowance pull leaves no residual allowance, a trader round trip returns the pool's balance exactly, and the supply is unchanged throughout.

Leads from static analysis. The aderyn large-numeric-literal note is style only. The literal evaluates to exactly 1e27 and is asserted against the manifest supply by the test suite.

Coverage. All three entry points are marked as holding, plus rows for the conservation, single-mint, launch-flow and no-external-call invariants. One informational row records that tokens sent to the token's own address are stranded, which is standard ERC-20 behaviour and documented in the README.

Verification runs. The full suite passed (36 tests, both invariants), and the scratch flow test passed before I deleted it. The findings JSON parses cleanly and git status shows only ignored paths.

The findings file is in place and the harness excludes it from git on purpose. The scratch directory is removed and the working tree is otherwise untouched.

Result: no defects found in the assigned area. The findings file at the repository root holds an empty findings list and nine coverage rows, all marked holds.

What the token is. A single contract that inherits the vendored OpenZeppelin ERC20 and mints the whole supply to the deployer in its constructor. It has no owner, modifier, setter, initializer, proxy, receive or fallback. The compiled ABI exposes exactly three state-changing functions: approve, transfer and transferFrom.

What I checked, per guide.

• Access Control: mapped every storage writer. Balances are written only through transfer and transferFrom, which authorize by caller or by allowance. Allowances are written only by the caller's own row. The constructor hands out no role. Selectors for owner, mint, burn, pause, initialize and permit all revert when called by the deployer. Storage beyond the five ERC-20 slots is empty.
• Asymmetry: the only paired surface is approve against the allowance spend inside transferFrom. A spend reduces exactly the approved row by exactly the amount and never crosses rows. The branch where the sender is the zero address reverts before any balance logic, even for a zero amount. The absence of an Approval event on spend is documented OpenZeppelin v5 behaviour, not a defect.
• Trust Gap: with no privileged actor and no mutable formula or destination, no seam exists between authorization and value flow.

Verification performed.

• The vendored OpenZeppelin files were fetched from upstream at the pinned commit and diffed. They are byte-identical.
• The project's full suite passed, 36 tests and both stateful invariants.
• A scratch suite of seven counterexample probes passed. Each tried an unauthorized spend, a cross-row approval, a hidden role slot or an unexpected selector, and each was rejected.

Leads not reported. The ERC-20 approve front-running race is inherent to the standard and documented in the README. The static-analysis note about a large numeric literal is style only.

Launch fit, outside my area but checked. Supply is exactly 10^27 base units, minted to msg.sender. Decimals are 18. The constructor takes no arguments, so the manifest's constructorArgs should be an empty list. Transfers move whole amounts, so the distributor, seed and swap flows arrive intact.

The review is complete and .imd-findings.json holds the result. The token's math is clean in the assigned area, and one low-severity provenance defect outside it is reported.

What was checked

• src/Yolo.sol is a plain OpenZeppelin v5.0.2 ERC20 with a single constructor mint of 10^27 base units to the deployer. The five vendored OpenZeppelin files are byte-identical to upstream v5.0.2, so the transfer and allowance arithmetic is the audited upstream code.
• Math Precision guide: no divisions, fixed-point scales, downcasts or fee formulas exist. The supply constant is an exact compile-time value of 10^27, which closes the aderyn large-literal lead. Both unchecked blocks in the transfer path are guarded by the preceding balance and allowance comparisons, and the balance sum is bounded by 10^27, so no overflow is reachable.
• Boundary guide: no external calls, no payable, receive or fallback, no bytes decoding. The only sentinel branches are the zero-address checks, traced on both sides. Max-uint transfer, supply plus one, exact supply, full self-transfer, one-wei round trip, allowance at max minus one and at max were all exercised in a scratch Foundry suite of 12 tests, all passing.
• Numerical Gap guide: any basis-point split of the supply is exact because 10^27 is divisible by 10^4, so the swarm, pool and remainder shares leave no dust. The project's own stateful invariants and a scratch fuzz confirm balances always sum to the supply.
• All 36 project tests pass under the README's seed.

Finding reported (low)

The lock file records SHA-256 digests for 36 vendored files and the README states all 36 matched. Seven forge-std files do not match their recorded digests. Comparison against upstream forge-std v1.9.7 shows whitespace-only reformatting, so test tooling and production bytecode are unaffected, but the lock does not attest the shipped tree and the README claim is false. The reproduction is a one-line digest check in the finding.

Coverage

All three entry points, approve, transfer and transferFrom, are marked holds, with five additional invariant rows covering the supply constant, constructor mint, exact splits, supply conservation and the boundary inventory. The scratch directory was removed, and no repository file was changed.

The findings file is valid, the snippet matches the README exactly, and no tracked file was changed. The review is complete.

Result: no defects in the token's execution flow. The Yolo contract is a 16-line, unmodified OpenZeppelin v5.0.2 ERC20 with a single constructor mint of 10^27 base units to the deployer. All three entry points hold. The only finding is informational, about documentation provenance.

What I checked, from the Execution Trace, Periphery and First Principles guides:

• Execution Trace. Traced approve, transfer and transferFrom through the vendored _update, _spendAllowance and _approve. No external calls, no encoding, no partial state. Allowance spending rolls back on any later revert. Max allowance is never decremented. Zero-address sender, receiver and spender all revert. Confirmed with a scratch test under test/scratch/ that also walks the launch flows: factory to distributor, claim, push to a manager-like counterparty and take back.
• Periphery. Fetched the six OpenZeppelin files and license at upstream commit dbb6104 and compared digests. All match the tree and the lock file byte for byte.
• First Principles. The constructor's only assumption is that msg.sender is the intended recipient, which the factory-driven CREATE2 launch satisfies. The supply constant evaluates to exactly 10^27, so the aderyn literal lead is not a defect. No owner, mint, burn, pause, freeze, fallback or receive paths exist.
• Existing suite. All 36 tests and both stateful invariants pass with the README's seed.

The one finding (info). Seven tracked forge-std files differ from the digests in dependencies.lock.json, which the README says all matched. The lock's digests are the true upstream v1.9.7 values. The tree's copies were reformatted with whitespace-only changes, so nothing on-chain is affected. The author should either restore the upstream bytes or regenerate the lock and correct the README.

Not reached. The protected seed-and-swap test against a real Uniswap v4 PoolManager could not be run here because the floor's harness contracts and v4-core are not in this tree. That row is marked unreached in the coverage record, with the reasoning that a hook-free ERC20 satisfies v4's sync, settle and take pattern.

Added 18 boundary and fuzz tests and strengthened three stateful invariants.

forge build and forge test pass with the required seed: 54 tests and 32,768 invariant calls.

Only test/ files changed. No implementation defects found.

The review is complete and .imd-findings.json is written at the repository root. The working tree is otherwise untouched.

Outcome: one low finding kept, nothing critical or high, all three entry points hold.

What I verified

• Specialist findings merged. The math and flow specialists reported the same root cause, so they are one finding. Seven vendored forge-std files do not match the digests in dependencies.lock.json, contradicting the README's claim on line 111 that all 36 matched. I reproduced the mismatch with the documented digest check, fetched the upstream v1.9.7 files at the commit the lock names, and confirmed the lock digests are the true upstream ones while the tree copies differ only in whitespace. The six OpenZeppelin production files are byte-identical to upstream, so the token's bytecode is unaffected. Severity stays low because the impact is a false provenance statement, not a code defect.
• My own pass over the token. The contract is an unmodified OpenZeppelin v5.0.2 ERC20 with an argument-free constructor that mints the full supply once to msg.sender. There are no mint, burn, pause, owner, or external-call paths, and no delegatecall or selfdestruct. The constant equals the manifest's totalSupply, name, symbol and decimals agree with launch.json, and the manifest uses only schema keys with correct types and lowercase addresses.
• Checks run. The build succeeds and all 54 tests pass. The formatting check passes. The static-analysis lead about the large numeric literal is the supply constant and is correct.

Coverage record. Seven rows: approve, transfer and transferFrom each hold with the traced checks and failure paths, three invariant rows hold, and the dependency-provenance row points at finding 1.

One note on my process: a mistyped path on one write created a stray file outside the repository. I deleted it and its empty directories before writing the real findings file.