Implemented imdUSD (IMDUSD): 1 billion tokens with 18 decimals, minted once to the deployer.

Included vendored dependencies, deployment script, tests, and operational documentation.

Validation passed: build, formatting, all 34 tests, expanded fuzz testing, and offline deployment simulation. No transactions broadcast. Full network launch integration remains for the external verifier.

Created launch.json with the exact token supply, constructor arguments, economics, and paired currency.

Validation passed against the supplied schema and compiled constructor ABI. forge build succeeded; forge test passed all 34 tests.

Only launch.json is changed for submission.

The review is complete. No defects were found, and the findings file records that with a full coverage record.

Outcome: .imd-findings.json holds an empty findings list and seven coverage rows, one for each of the three listed entry points plus four invariants I checked. No repository files were changed.

What I checked, by area

• Execution Trace. Traced approve, transfer and transferFrom from entry to final storage through the unchanged OpenZeppelin paths. Zero recipient, zero spender, insufficient balance and insufficient allowance all revert with ERC-6093 errors and leave state intact. A finite allowance is decremented before the balance check, so a failing delegated transfer rolls both back. The unlimited allowance never decreases. There are no external calls, callbacks, sentinel paths or fee deductions, so no value leak or stale read is possible.
• Periphery. Fetched the five OpenZeppelin files from upstream and diffed them byte for byte. All match upstream master. The only difference from the v5.5.0 tag is the upstream rename of the draft IERC6093 file, which does not change any code. The vendor claim of "unchanged" holds.
• First Principles. The constructor mints exactly 10^27 base units to the deploying caller, with no arguments and no second mint path. The compiled ABI exposes only the standard ERC-20 surface plus the supply getter. The 1815-byte runtime contains no DELEGATECALL, CALLCODE or SELFDESTRUCT, and there is no receive or fallback. The launch flows the protected harness exercises all move the exact amount.

Verification run

Check	Result
forge build, offline	passed
forge test, 34 tests, default seed	passed
forge test, seed 0x20261007, 2048 fuzz runs	passed
forge fmt --check	passed
Invariant suite	8192 handler calls, 0 reverts

Leads examined and not reported. The approve replacement race is standard ERC-20 behaviour and documented in the README. A stranger with zero allowance can call transferFrom for zero value and emit a zero-value Transfer event, which is also standard OpenZeppelin behaviour. The aderyn large-literal note resolves to exactly 10^27, as the tests assert. None of these is a defect in this code.

Not covered. Live PoolManager seeding and swaps require the network's launch contracts and resolved environment, which this repository cannot run offline. The repository's own factory fixture only exercises the token-side transfer legs.

Review complete. .imd-findings.json is written at the repository root (valid JSON, 0 findings, 9 coverage rows), the scratch test is removed, and the tree is otherwise untouched.

Result: no substantiated defects in the Economic Security / Invariant / Flow Gap area

What the code is. src/Token.sol is a 15-line contract: unmodified OpenZeppelin v5.5.0 ERC20, name imdUSD, symbol IMDUSD, 18 decimals, and a single constructor _mint(msg.sender, 1_000_000_000 * 10**18). No constructor arguments, no owner, no hooks, no external calls, no exemptions.

What I checked and how.

• Dependency integrity — cloned the upstream v5.5.0 tag and diffed all five vendored files: byte-identical except import ordering and the draft-IERC6093.sol → IERC6093.sol rename (header comment only). No silent edit to _update, _approve or _spendAllowance.
• Launch-flow economics (Flow Gap seams 1–3) — a scratch Foundry test deployed the token through a CREATE2 factory probe and drove every flow the protected harness depends on: 10% to the distributor, poolBps pulled by a PoolManager-style transferFrom, remainder to the requester, claim out of the distributor, buy (manager push) and sell (trader approve + manager pull). Every amount arrived exactly, totalSupply stayed 1e27, and the sum of all balances equalled supply at every step. A fuzz round-trip over 0..1e27 returned the exact amount.
• Invariants — supply can't grow: 14 common mint/burn/owner/upgrade/pause/freeze selectors called from both a stranger and the factory all revert with no state change; direct Ether payment reverts. Allowance accounting: finite decreases exactly, type(uint256).max is unlimited, insufficient allowance/balance reverts atomically.
• Economic Security — no oracle, no fee, no rebase, no sentinel-address branch, no shared cap, no ERC the code claims beyond ERC-20 itself; nothing for an actor with unlimited capital to lean on. The standard ERC-20 approve race is inherent to the interface, documented in the README, and falls under the guide's Do-Not-Report list.
• Static-analysis leads — Slither: none. Aderyn's large-numeric-literal at src/Token.sol:10 is 10^27, exactly the manifest supply; style, not a defect.
• Outside my area — script/Deploy.s.sol mints to the broadcaster rather than the factory; the README explicitly states this is not the launch path, so it's a documented trust assumption, not a finding.

Not reached. The pinned protected harness (Token.protected.t.sol) imports v4-core and the network's LaunchLiquidity, which are not vendored here, so I could not run a live PoolManager seed/swap; my scratch test reproduces the token-side transfers that the harness exercises, which for a token with no transfer logic is the whole surface. Coverage rows record this.

The findings file is in place at the repository root, excluded from git by the repository's own exclude rules as the harness intends, and no tracked file changed. The review is complete.

Result: no defects in the Math Precision, Boundary or Numerical Gap areas. The findings file holds an empty list and nine coverage rows, all holds.

What the token is. src/Token.sol is a 15-line wrapper over the vendored OpenZeppelin v5.5.0 ERC20. Its only logic is a constructor that mints a compile-time constant to the deployer. The four vendored OpenZeppelin files match upstream text, and the build and the existing 34 tests pass offline.

What I checked, with executed evidence. I ran a scratch suite of nine probes (deleted afterward, as the task allows) covering every edge the three guides name that the code can reach:

• Supply constant. The literal evaluates to exactly 10^27 and equals the manifest string and 1,000,000,000 times 10 to the decimals() power. The aderyn large-literal line is a style note, not a defect.
• Overflow and ordering. transfer with type(uint256).max and with supply plus one both revert with the exact balance numbers before any unchecked arithmetic runs.
• Allowance sentinel. An allowance of max minus one decrements normally; only exactly max is treated as infinite, and infinite allowance still cannot overdraw a balance.
• Exact-boundary and self-transfer paths. Full-balance transfer, full-balance self-transfer and self-transferFrom leave balances and supply unchanged with the allowance consumed as intended.
• Zero-value fast paths. Zero-value calls still hit every zero-address revert, so no early return bypasses a guard.
• Launch share arithmetic. The swarm's ten percent is exactly 10^26 with no remainder, and the pool share is exact for every poolBps from 1 to 9000, checked exhaustively. No intermediate product approaches the uint256 limit.
• Conservation. 1,024 fuzz runs of delegated transfers and a 1-wei hop loop keep the sum of balances equal to supply, on top of the project's 8,192-call invariant run.

What is outside my area and not asserted here. I did not run the protected Uniswap v4 harness, since it needs the network's launch contracts and resolved deployment parameters. The token has no formulas, external calls or payable paths, so the Numerical Gap seams and the Boundary agent's external-call questions have nothing to attach to, which I recorded as coverage rows rather than silence.

The findings file exists at the repository root and is excluded from git by the harness's own exclude list, which is expected. The working tree is otherwise clean, with no scratch files left behind.

Outcome: no blocking defects in the permission model. The review covered the Access Control, Trust Gap and Asymmetry guides against src/Token.sol and the vendored ERC20 it inherits.

What I checked

• Permission map. The compiled ABI exposes exactly three state-changing functions and no fallback, receive, owner, mint, burn, pause, blacklist, freeze, seize, initialize or upgrade selector. Unknown calldata and direct ETH revert.
• Inconsistent guards. Balances are written only through transfer (sender bound to caller) and transferFrom (bound by allowance). Allowances are written only by approve on the caller's own row and decremented by _spendAllowance. No weaker writer exists.
• Constructor and temporal story. The one-time mint is exactly one billion tokens at 18 decimals, to the immediate creator. A scratch test confirmed a CREATE2 factory receives everything and its caller nothing. The aderyn large-literal lead is style only.
• Trust gap and asymmetry. There is no privileged actor and no economic formula, so no seam exists between them. Transfers move exactly the stated value with no caller-class branch, so the launch flows cannot arrive short.
• Vendored library. The ERC20 file reads as stock OpenZeppelin v5 with no logic changes and no override of the update hook. The existing 34 tests, including the 128 by 64 invariant run, pass offline.

One info-level note recorded. A zero-value transferFrom needs no allowance, so any caller can emit a Transfer event that appears to come from any holder. No balance changes. This is standard ERC-20 behaviour, the project's own tests assert it, and it is reported as a documented trust assumption with an optional fix, not a blocking defect.

Coverage record has eight rows: the three listed entry points plus the constructor and four invariants. All hold except transferFrom, which points at the info note.

Not reached. The pinned protected harness needs Uniswap v4 core, which is not vendored, so the live PoolManager seed and swap were not executed here. The token-side legs of those flows were traced instead.

Expanded the existing tests with failure paths, allowance edge cases, and three-actor stateful invariants.

forge build and forge test pass: 44 tests, 1,000 runs per fuzz test, and 16,384 invariant calls.

No implementation defects found. Only two files under test/ changed.

The review is complete and the findings file is written. Nothing further is needed.

Outcome: the token is clean. The findings file at .imd-findings.json carries one info-level note and a full coverage record. No blocking defects, so nothing reopens the author's work.

What I verified against the code

• src/Token.sol is an unmodified OpenZeppelin v5 ERC20 with a single constructor mint to msg.sender. The minted amount equals the manifest's totalSupply, decimals are 18, and name and symbol match the brief.
• The ABI exposes only approve, transfer and transferFrom. There is no owner, mint, burn, pause, blacklist or upgrade path.
• The vendored OpenZeppelin files are ordinary committed files, not submodules, and their transfer, allowance and update logic matches upstream line by line.
• A scratch opcode scan of the deployed runtime found no DELEGATECALL, CALLCODE or SELFDESTRUCT.
• The full project suite passes, including the invariant run that holds total supply and the balance sum constant.

Specialist findings judged

• The audit_permissions note about zero-value transferFrom reproduced exactly as described. With zero allowance, a stranger can call transferFrom on any holder for value zero and the token emits a Transfer event naming that holder. Balances and allowances do not change. This is standard ERC-20 behaviour and I kept it at info as a documented trust assumption, not a defect.
• The other three specialists and the independent tester reported nothing, which agrees with my own pass.
• The aderyn large-numeric-literal lead is a style note; the literal is correct.

Coverage: all three listed entry points are answered, two as holds and transferFrom pointing at the info note, plus three invariant rows for supply, opcodes and dependency integrity. The scratch test directory was removed, so the only file I left behind is the findings JSON.