Implemented PLEA with 18 decimals and exactly 1,000,000,000 tokens minted once to the deployer. Includes vendored dependencies, deployment documentation, and success/failure tests.

Verified:

• forge build passes.
• forge test passes: 39 tests using the supplied fuzz seed.
• forge fmt --check passes.

The separate protected launch harness was not run locally; its requirements and validation limits are documented.

I found no defects in the economics area. .imd-findings.json has an empty findings list and a coverage row for each of the three entry points, plus three invariant rows.

What I reviewed: src/PLEA.sol is a plain OpenZeppelin v5.0.2 ERC-20 (that version is the one the README states; I didn't open the library's own version file). It has no constructor arguments, and its constructor makes one mint of 1e27 units to msg.sender. It has no overrides, fees, burns, hooks, owner, external calls, delegatecall or selfdestruct. The project's existing tests pass: 39 of 39, including the invariant suite.

• Economic Security: Nothing can be extracted. There is no tax or fee logic, no oracle and no privileged role, so no value can be skimmed or captured by front-running. The usual ERC-20 approve race is the standard's own behaviour and isn't a defect here.
• Invariant: The supply stays fixed at 1e27 because _mint is only reachable from the constructor. Balances always add up to the supply because OpenZeppelin's _update is unchanged. Allowance accounting is standard, and a maximum allowance is treated as unlimited.
• Flow Gap: Every launch flow moves exactly the amount stated. That covers the factory paying the distributor, the factory seeding the pool through the PoolManager, distributor claims, and swaps both ways, since nothing on transfer takes a cut. A failed transfer reverts the whole call, so nothing arrives short.

Coverage: All three entry points are holds: approve, transfer and transferFrom. I also recorded three invariants as holds: the supply stays fixed, the whole supply goes to the deployer, and no privileged freeze or seize exists.

Limits: I didn't run the protected floor tests, because they import harness files that aren't in this tree.

The static-analysis lead: Aderyn's large-numeric-literal note at line 10 is just the supply constant, 1_000_000_000 * 10 ** 18, so I didn't report it.

Write scope: The assignment's list of paths I may modify was empty, but the task also requires .imd-findings.json. That file is the only thing I wrote.

I found no defects I could back with a reproduction, so .imd-findings.json has an empty findings list and five coverage rows marked holds: the three entry points plus two invariants.

What I reviewed: src/PLEA.sol is a plain OpenZeppelin v5.0.2 ERC20. Its constructor mints 1_000_000_000 * 10**18 (exactly 1e27) once to msg.sender, and it overrides nothing. The vendored OZ files (ERC20.sol, IERC20.sol, IERC20Metadata.sol, Context.sol, draft-IERC6093.sol) match the sha256 hashes pinned in DEPENDENCIES.json, so the code that runs is the stock code.

Execution Trace:

• transfer and transferFrom go through _transfer and then _update. Zero addresses are rejected, and the balance is checked before the subtraction, which is the only arithmetic in that path that skips overflow checks.
• transferFrom spends the allowance before moving tokens, and an allowance of type(uint256).max is treated as unlimited.
• Every failure reverts the whole call, and there is no external call or callback anywhere, so reentrancy can't happen.
• approve rejects zero addresses, sets the allowance and emits Approval.

Periphery: Transfers deliver exactly the amount sent, so every launch flow arrives whole: factory to distributor, distributor to claimants, the pool seed, and swaps through the PoolManager. The existing test suite passes (39 tests, including invariant runs). I did not run the protected floor test myself, because it needs the deployer's environment variables.

First Principles:

• The supply can't grow: there's no mint, owner, pause, blacklist or upgrade entry point.
• There's no assembly and no low-level call, so no DELEGATECALL, CALLCODE or SELFDESTRUCT.
• decimals() returns 18, as expected.

Static analysis leads: Slither reported nothing. Aderyn's large-literal note at line 10 is a style point only; the value is correct.

Left out on purpose: I didn't report the usual ERC-20 risk that someone can front-run an allowance change by spending the old allowance first. Every standard token has it, and it isn't a defect in this code.

Nothing in the repository was modified.

Created launch.json matching PLEA’s constructor, supply, and the exact pool and economics values.

Manifest checks and forge build passed. forge test passed all 39 tests with the supplied fuzz seed.

Only launch.json is changed for submission.

The math review of PLEA is complete and found no defects. The findings file is written with an empty list and six coverage rows, and the working tree is clean apart from that file.

What was reviewed. The token is a 17-line subclass of the vendored OpenZeppelin v5.0.2 ERC20 with one constant and one constructor mint. I checked it against every failure mode in the Math Precision, Boundary and Numerical Gap guides, after the Senior Auditor's Mindset.

• Math Precision: the supply constant is a compile-time checked expression equal to 1e27. There is no division, no downcast, no fee or share formula, no decimals conversion. The only arithmetic is OpenZeppelin's balance and allowance updates, whose unchecked blocks sit behind explicit less-than guards.
• Boundary: the ABI has no receive, fallback or payable function and the code makes no external calls or bytes decoding. ETH sent with or without calldata reverts. The only sentinel branches are the zero-address checks, and both sides revert as intended.
• Numerical Gap: the conservation invariant holds exactly because no path truncates. Zero-amount and self-transfer fast paths go through the same update as every other transfer.

How it was checked. The existing 39 tests pass with the pinned seed. I wrote a scratch probe covering whole-supply moves, one wei over balance, max uint amounts, self-transfer and self-transferFrom of the whole balance, unlimited and max-minus-one allowances, allowance larger than balance, zero-address corners and a fuzzed conservation chain. All behaved as intended. The scratch file was removed afterwards. I also confirmed the five vendored OpenZeppelin files hash identically to the upstream v5.0.2 tag.

Static analysis leads. Slither reported nothing. Aderyn's large-numeric-literal note on line 10 is style only. The literal evaluates to exactly 1e27 and is not a defect.

Coverage. All three entry points are marked holds, with three extra rows for the supply invariant, the decimals and scale check, and the external boundary surface. Nothing in my area was left unreached.

The permissions review of PLEA is complete and found no defects. The report is in .imd-findings.json with an empty findings list and nine coverage rows, all holds. The scratch tests were removed and the tree has no other changes.

What was checked

• Access Control. The token is src/PLEA.sol plus unmodified OpenZeppelin v5.0.2 ERC20. The constructor mints the whole supply to the caller and hands out no owner, minter, initializer or upgrade role. The ABI exposes only approve, transfer and transferFrom as state-changing. Balances are written only by the holder or an approved spender within its allowance, and allowances only by their owner or by spending.
• Asymmetry. The approve and spend pair, transfer versus transferFrom, and the mint and burn branches of the internal update all mirror correctly. Burn and post-construction mint are unreachable, so supply is fixed.
• Trust Gap. With no privileged actor, fee, price or settable recipient, no seam between access, economics and asymmetry exists. The factory receiving the supply is the launch design and carries no continuing power over holders.

Evidence gathered

• The five vendored OpenZeppelin files match their recorded hashes and are byte-identical to the upstream v5.0.2 tag.
• The existing 39 tests pass with the pinned fuzz seed.
• A scratch fuzz over random selectors, from both deployer and stranger, left supply and all balances unchanged. The deployer cannot pull from a holder without allowance, and a spender cannot raise its own allowance on another's tokens.
• An opcode walk of the deployed runtime found no reachable CALL, CREATE, DELEGATECALL, CALLCODE or SELFDESTRUCT.

The aderyn large-numeric-literal lead is a style note on a correctly written constant and was not reported. The standard ERC-20 approve front-running property is inherent to the specification, documented in the README, and not reported as a defect.

Added 20 edge-case and fuzz tests, and expanded stateful invariants covering failed-call rollback, allowance limits, conservation, and spendability. All changes are under test/.

Offline build and full tests passed with the supplied seed: 59 tests passed, including 9,000 new fuzz cases and 24,576 invariant-handler calls.

No implementation defects found.

I found no defects in PLEA, and .imd-findings.json holds an empty findings list with a coverage row for every entry point.

Specialist findings to check or merge: none. All four specialists and the test writer reported no findings, so nothing needed reproducing or merging.

What I checked myself:

• The token: src/PLEA.sol is an unmodified OpenZeppelin v5 ERC20 that overrides nothing. The constructor mints 1_000_000_000 * 10 ** 18 once to msg.sender. There is no other mint, burn, owner, pause or blacklist function. There is no transfer fee or burn either, so the transfers from the factory to the distributor, from the distributor to claimants, and through the pool all move exact amounts.
• The entry points: I traced approve, transfer and transferFrom through the vendored OpenZeppelin _approve, _spendAllowance and _update. Each rejects zero addresses, checks the balance before debiting it, checks the allowance (an unlimited approval is never decreased), and emits the right event. All three are marked holds.
• Deployment: The constructor takes no arguments, which matches constructorArgs: [] in launch.json. Supply (1000000000000000000000000000), decimals (18), name and symbol all match the manifest. Creation code is 1,752 bytes and deployed code is 2,618, well under the limits. bytecode_hash = "none" is set, and the reachable runtime code has no DELEGATECALL, CALLCODE or SELFDESTRUCT.
• The manifest: It uses only schema keys and has the right value types. The economics section matches the job's figures, and the notes are under 4,000 characters.
• Static analysis: Aderyn's "large numeric literal" warning at src/PLEA.sol:10 is about style, not a defect. Slither reported nothing.
• Tests: forge test passed all 59 existing tests in 4 suites. I didn't run the protected floor tests, because they need the service's environment variables and harness files that aren't in this tree. Instead I read the token against what each of them checks.

I changed no project files. .imd-findings.json doesn't show in git status, probably because .gitignore excludes it.