Implemented VerdictIMD (VERDICT): 1 billion tokens, 18 decimals, minted once entirely to the deployer. No owner or later minting.

• Dependencies vendored for offline builds.
• Deployment and operational responsibilities documented.
• forge build, forge test (33 passing), and forge fmt --check pass using the supplied fuzz seed.

Full protected launch integration remains for the verifier’s external harness.

Created launch.json matching the accepted token, constructor, supply, pool and economics.

forge build succeeded. forge test passed all 33 tests with the supplied fuzz seed. Only launch.json is changed for submission.

Added nine boundary/fuzz tests and expanded stateful invariants to cover rejected transfers and approval failures.

Validation passed: forge build and seeded forge test—42 tests, including 256 random sequences with 16,384 handler calls.

Only test/ changed. No defects found.

The review is complete. No defects found. The findings file is written with an empty findings list and eight coverage rows, and no tracked file was changed.

What was reviewed. The token at src/VerdictIMD.sol is a 17-line contract that inherits the vendored OpenZeppelin v5.0.2 ERC-20 and mints 10^27 units to the constructor caller. I applied the Execution Trace, Periphery and First Principles guides from the Pashov reference, after the Senior Auditor's Mindset section.

Entry points. All three listed entry points hold:

• transfer goes through the unmodified OpenZeppelin path. The zero-recipient check, balance check and unchecked arithmetic are sound, self-transfers net to zero, and there are no fees, hooks or external calls.
• approve writes only the caller's own allowance row and rejects a zero spender. The standard approve ordering race is inherent to ERC-20 and already documented in the README.
• transferFrom spends the allowance before moving tokens, leaves infinite allowances untouched, and every failure path reverts atomically so the allowance write is rolled back.

Periphery. I read the vendored base contract and Context in full. They match upstream text, and file hashes match dependencies.json. The network filter denied fetching upstream from GitHub, so a byte-for-byte diff against the pinned commit was not possible. That is recorded in the coverage row.

First principles. Supply is exactly one billion with 18 decimals, minted once to msg.sender, which is the factory under CREATE2 deployment. The compiled ABI exposes no mint, burn, owner, pause, blacklist, payable, receive or fallback surface. An independent opcode walk of the runtime found no CALL, DELEGATECALL, CREATE, STATICCALL or SELFDESTRUCT, and the metadata trailer carries only the compiler version.

Checks run. Build succeeded, all 33 tests passed including the 128-run invariant suite, and forge fmt reported no changes. The single aderyn lead is a large-literal style note on the supply constant, which is the brief's value.

The review is complete. The findings file is in place and the working tree holds nothing but it, which the repository's own exclude list already covers.

Result: no defects in the math area. The token at src/VerdictIMD.sol is a plain OpenZeppelin v5.0.2 ERC20 whose constructor mints one constant to the deployer. There is no division, no scaling, no narrowing cast, no external call, no payable path and no bytes decoding, so most of the Math Precision, Boundary and Numerical Gap failure modes have no surface here. The ones that do apply were traced and tested with concrete inputs:

• Supply literal. The aderyn lead at line 12 evaluates at compile time to exactly 1e27, which matches the README and the manifest form and fits in uint128. Not a defect.
• Unchecked arithmetic in the vendored transfer path. Each unchecked block is preceded by a checked bound, and the vendored library files match the pinned v5.0.2 hashes byte for byte.
• Edge inputs. A scratch Foundry suite exercised 1 wei, zero, full supply, self-transfer of the full supply, max uint amounts, allowance at max and max minus one, zero-amount delegated transfers, burn attempts and ETH sent with and without calldata. All nine tests passed, including a fuzzed three-party conservation check. The scratch file was removed afterwards.
• Launch flows. Nothing deducts on transfer, so the swarm, pool and remainder shares of 1e27 arrive whole.

The project's own suite of 33 tests also passes on this tree.

Coverage rows were written for all three ABI entry points as holds, plus four invariant rows covering the supply constant, supply conservation, the boundary enumeration and the launch flows. Nothing in the assigned area was left unreached.

The review is complete and .imd-findings.json is written and validated.

Result: no defect in the assigned area. VerdictIMD is a 17-line contract that inherits unmodified OpenZeppelin v5.0.2 ERC20 and mints 1e27 units once to the constructor's msg.sender. There is no owner, minter, pauser, blacklist, initializer, fallback or receive, and the runtime has no DELEGATECALL, CALLCODE or SELFDESTRUCT. The compiled ABI exposes exactly the three listed entry points as state changers.

What I checked against the three guides

• Access Control. Permission map is empty: every write is keyed on msg.sender or an allowance the owner set. No storage slot has two writers with different guards. No escalation chain, no confused deputy, no proxy.
• Trust Gap. None of the four seams has a surface, since the token holds no economics, setters or recipients. The single trust assumption is that the factory forwards the supply, which is the launch service's job and is exercised by the protected floor tests.
• Asymmetry. transfer and transferFrom share one internal path. approve emits Approval while allowance consumption does not, which is OpenZeppelin v5 design and is documented in the README. Self-transfer and infinite-allowance branches behave as intended.

Verification run

• Full suite with the README's fuzz seed: 33 tests pass, including 128 invariant sequences of 64 calls with no reverts.
• OpenZeppelin vendored files match their recorded SHA-256 hashes exactly.
• The aderyn large-literal lead is a constant-folded 1e27 asserted by an existing test. Not a defect.

One info finding recorded. Seven vendored forge-std files do not match the hashes in dependencies.json, contradicting the README's "unmodified" claim. I fetched upstream at the pinned commit and confirmed the recorded hashes are upstream's and the only differences are whitespace from this repository's forge fmt setting. No effect on the token or tests. The finding gives the exact command that reproduces the mismatch and suggests the author either re-vendor and exclude lib from fmt, or re-record the hashes.

Coverage record. All three entry points are marked holds, with rows added for the constructor, the no-admin invariant, the trust-gap and asymmetry invariants, the static-analysis lead, and the dependency integrity row pointing at the info finding. Nothing was left unreached.

The review is complete and the findings file is written and validated.

Outcome: no defects in the economics area. VerdictIMD is an unmodified OpenZeppelin v5 ERC-20 with a single constructor mint of the manifest supply to the deployer. I checked it against the Economic Security, Invariant and Flow Gap guides and found nothing that loses funds, pays the wrong party, or breaks a launch flow.

What I verified, with the existing suite plus a scratch Foundry test that I ran and then removed:

• Conservation. Total supply is fixed at the constructor's mint and always equals the sum of balances. No burn, mint, pause, freeze, blacklist or recovery entry point exists, and the runtime has no delegatecall or selfdestruct.
• Launch flows. Factory to distributor, distributor to claimant, factory to PoolManager seed, and trader buy and sell all move exactly the requested amount. No tax, exemption list or external call is involved, so the protected floor's exactness checks hold by construction.
• Boundaries and sentinels. Zero address is rejected as sender, receiver, approver and spender. Zero-value and self-transfers preserve balances. Infinite allowance never decreases. Reverts are atomic.
• Dependencies. The contract makes no external calls, so there is nothing an oracle, callback or foreign token can derail.

The file holds one informational entry, not a defect: the standard ERC-20 allowance-replacement race, which the README already documents. I recorded it with concrete numbers (a spender approved for 100 who front-runs a reduction to 50 can take 150) only because the Economic Security guide asks for every value-loss path to be named. It needs no change to the agreed design.

Coverage rows answer all three listed entry points as holding, plus four invariant rows. One row is marked unreached: there is no launch.json in the tree yet, so the manifest could not be reviewed, though the README's stated split and supply match the code.

Review complete. The findings file is written at .imd-findings.json, no repository file was changed, and the scratch test directory was removed.

Verdict on the token: src/VerdictIMD.sol is a plain OpenZeppelin v5.0.2 ERC20 with a no-argument constructor that mints exactly the manifest supply to msg.sender. I found no defect in it. All six vendored OpenZeppelin files hash-match the upstream commit. The compiled runtime contains no DELEGATECALL, CALLCODE, SELFDESTRUCT or CALL, and is far under the size limits. The project suite passed in full, including the 256-run invariants. The manifest uses only schema keys, matches the constructor and supply, and its pool and economics match the assignment's values.

Specialist findings, after reproduction:

• Kept, info: dependencies.json records upstream hashes for 7 forge-std files that were re-wrapped by forge fmt. I recomputed the hashes, fetched the upstream commit, and confirmed the files are identical once whitespace is stripped. Test-only, no bytecode impact, but the README's "unmodified" claim does not hold for forge-std.
• Kept, info: the inherited approve replaces the allowance, so lowering a nonzero allowance has the standard ERC-20 ordering race. Reproduced with a Foundry test. It is documented in the README and is not a defect requiring a change.
• audit_math, audit_flow and the test writer reported nothing, and nothing in my own pass contradicts that.

Coverage: all three entry points answered as holds, plus five invariant rows covering constructor supply and recipient, forbidden opcodes and size, launch-flow exactness, dependency provenance, and launch.json. No proofs were attached since nothing reached high or critical.