Implemented InferToken.sol: Infer (INFER), 18 decimals, exactly 1 billion tokens minted once to the deployer.

Dependencies are vendored. Assumptions, deployment parameters, and operational responsibilities are documented.

With Solidity 0.8.26, forge build, all 35 tests, and forge fmt --check pass—including a fresh offline run with an empty environment. No transactions were broadcast.

Created launch.json matching InferToken, its exact supply, empty constructor arguments, and the required pool and economics values.

Manifest and constructor ABI checks passed. forge build succeeded; all 35 tests passed. Only launch.json is changed for submission.

The review is complete. The findings file is at the repository root, excluded from git by the harness's own exclude rule, and the working tree is otherwise unchanged.

Result: no defects found in the math, boundary, or numerical-gap area. The file .imd-findings.json holds an empty findings list and eight coverage rows, all holds.

What the token is. src/InferToken.sol is seventeen lines: it inherits unmodified OpenZeppelin ERC20 v5.1.0 and mints a constant to msg.sender in the constructor. The vendored library files match their published SHA-256 sums, _msgSender is plain msg.sender, and the compiled ABI exposes only the ERC20 views plus the three entry points the verifier listed.

What I checked against the three guides.

• Math Precision. The only arithmetic the token adds is the compile-time constant, which evaluates to exactly 10^27 and matches 18 decimals and the manifest's minor units. The inherited unchecked subtraction in the balance update is guarded by the balance check, and the unchecked allowance subtraction is guarded by the allowance check. There is no division, scaling, cast, fee or share formula anywhere in the runtime, so rounding, truncation and downcast failure modes have no code to attach to.
• Boundary. The token makes no external calls, has no payable or fallback entry, decodes no bytes, and its only sentinel branches are the zero-address rejections, which I traced on both sides. Deployment mints to the immediate creator regardless of origin or value.
• Numerical Gap. Zero-value fast paths still validate both endpoints and leave allowance untouched, so no seam between precision, boundary and invariant is reachable.

Evidence. The delivered suite passes with 35 tests, including the 128 by 64 stateful invariant with zero reverts. A scratch Foundry file I wrote and then deleted ran eleven extra probes at the extreme inputs the guides name: value of max uint on transfer and transferFrom, supply plus one, allowance of max minus one versus max, allowance exactly one below value, self-transfer of the whole balance, zero paths, value calls to the token, and a fuzzed three-party conservation chain. All passed.

Static analysis lead. The aderyn large-numeric-literal line points at the supply constant. I reproduced its value exactly and it is informational only, so it is not reported as a finding.

Outside my area. Nothing severe surfaced. The ERC20 approve race is standard behavior and already documented in the README. The README's statement that the launch network is Ethereum chain ID 1 is operator text, not token code, and is for the manifest reviewer to confirm.

The review is complete and .imd-findings.json holds an empty findings list with full coverage.

Result: no defects in the economics area. The Infer token is an unmodified OpenZeppelin v5.1.0 ERC-20 whose only custom code is a single constructor mint of one billion tokens to the deployer. There is nothing in it for the Economic Security, Invariant or Flow Gap failure modes to bite.

What I checked and how:

• Dependency integrity. All five vendored OpenZeppelin files hash identically to upstream commit 69c8def5 (v5.1.0). No submodule entries, no link references, no immutables.
• Launch flows. A scratch Foundry test deployed the token via CREATE2 from a factory-like contract, split 10/88/2 to a distributor, a pool-manager stand-in and the remainder address, drained the distributor to five claimants down to the last wei, then bought and sold through the pool stand-in using both settle-style transfer and router-style transferFrom. Every balance matched exactly and supply stayed at 1e27.
• Supply and seizure. The compiled ABI exposes only approve, transfer and transferFrom as state-changing. No mint, burn, pause, blacklist, upgrade, delegatecall or selfdestruct exists, and the factory cannot pull a holder's balance without allowance.
• Static-analysis lead. The aderyn "large numeric literal" note is style only. The literal evaluates to exactly 1e27 and the tests assert it.
• Existing suite. All 35 tests pass, including the stateful invariant run with zero reverts.

Coverage rows mark all three entry points as holds, plus rows for the supply conservation invariant, the deployment-time mint target, the dependency check and the static-analysis lead. Not covered here: the real Uniswap v4 seed and swap, which the protected harness runs, and launch.json, which does not exist yet for this launch. The scratch test was removed, leaving the tree unchanged apart from the findings file.

The review is complete and .imd-findings.json is written and validated. No source files were changed.

Result: no defects in the assigned area. The Infer token is a 17-line wrapper over OpenZeppelin ERC20 v5.1.0 whose constructor mints the full supply to the deployer. There is no owner, initializer, proxy, mint, burn, pause, blacklist, fee or exemption path, so the Access Control, Trust Gap and Asymmetry checklists have nothing to bite on.

What I verified:

• Entry-point inventory. The compiled ABI exposes only approve, transfer and transferFrom as state-changing, plus views. No receive, fallback or hidden selector exists.
• Permission model. Each entry point acts only on the caller's own balance or allowance. The deployer or factory cannot pull a holder's tokens without approval. The constructor hands out no persistent role.
• Supply. The constant equals 1,000,000,000 with 18 decimals, matching the task. Mint and burn are internal and reachable only from the constructor, so supply cannot grow or shrink after deployment.
• Asymmetry. Both transfer paths share the same internal update with identical zero-address and balance checks. Every storage slot has a matching writer and reader.
• Provenance. The five vendored OpenZeppelin files are byte-identical to upstream v5.1.0. The 35-test suite, including the invariant run, passes under Foundry 1.8.3.

One informational item was recorded. Seven forge-std files under lib/ fail their own SHA256SUMS. Compared with upstream v1.9.7, the differences are whitespace only, consistent with a formatter having been run over them. forge-std is test-only, so the production token is unaffected, but lib/README.md's "unmodified" claim is inaccurate and the author should restore the bytes or regenerate the checksums.

The coverage record holds nine rows: the three listed entry points, the constructor, three invariants and one trust-gap row all marked holds, plus a note that launch.json is correctly absent at this stage. Nothing was left unreached.

The review is complete and .imd-findings.json holds the result. The working tree is otherwise untouched, and the scratch directory was removed.

Outcome: no defect in the token's production code. All three state-changing entry points hold.

• approve, transfer, transferFrom are OpenZeppelin ERC20 v5.1.0 unchanged. I fetched upstream at the commit the repo names and the five production files are byte-identical. Guards, state writes and revert paths were traced per the Execution Trace guide: zero-address rejection, balance check before the unchecked subtraction, allowance decrement before the transfer with rollback on revert, self-transfer conservation, infinite-allowance path, and no external calls or callbacks anywhere.
• Constructor mints exactly 1e27 to the immediate creator, hands out no role, and takes no arguments. Compiled method list is the ten ERC-20 selectors plus the supply constant getter. Plain ETH and unknown selectors revert, which I verified with a scratch test since the existing suite did not cover it.
• The existing suite of 35 tests, including fuzz and invariant runs, passes, and forge fmt --check is clean.

One info-level finding was recorded. Seven test-only forge-std files fail the repo's own checksum list. The list matches upstream v1.9.7 exactly, so the vendored files were altered. The differences are whitespace-only re-wrapping, so test assertions are unaffected. The finding cites the SECURITY.md statement that dependency checksums matched, which is false for forge-std, with a reproduction via sha256sum -c.

Coverage has nine rows: the three listed entry points, the constructor, supply-fixed and no-privileged-path invariants, dependency integrity, the absent manifest, and the aderyn large-literal lead, which is a benign compile-time constant.

Completed within test/: added 11 adversarial tests and expanded stateful invariants covering failure rollback, allowance isolation, boundary values, and full-balance transfers.

Validation passed offline: forge build and forge test — 46 tests, 5,560 fuzz cases, and 32,768 invariant calls. No defects found.

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

Outcome. The Infer token has no code defects. It is a plain OpenZeppelin v5.1.0 ERC20 with a parameterless constructor that mints exactly one billion tokens with 18 decimals to the deployer, and exposes nothing else. The one specialist finding reproduced and is kept at info severity.

What I verified

• All three entry points (approve, transfer, transferFrom) are the unmodified OpenZeppelin implementations. Each vendored OpenZeppelin file is byte-identical to upstream commit 69c8def, confirmed by fetching and hashing them.
• The build succeeds and the full suite of 46 tests passes.
• The compiled runtime has no DELEGATECALL, CALLCODE or SELFDESTRUCT, is well under the size limits, and has no linked libraries. The manifest's empty constructor arguments, decimals and total supply match the contract.
• The two specialist reports (audit_flow and audit_permissions) describe the same issue and were merged into one finding. Running the checksum list inside the forge-std directory fails for seven files. Fetching the same files from the named upstream commit and stripping whitespace gives identical content, so the change is reformatting only. forge-std is test-only, so deployed code is unaffected. The defect is a false provenance statement in SECURITY.md and lib/README.md.

Deliverable. .imd-findings.json holds one info finding anchored at SECURITY.md line 47 with the reproduction, plus a coverage record marking all three entry points as holding and three extra invariant rows. No proof test was needed since nothing reached high severity. The working tree is clean with no scratch files.