The SIPHON token is built, tested, documented, and committed. The offline rebuild, test run, and format check all pass.

What was delivered

• src/SiphonToken.sol: contract SiphonToken (11 characters, within the 32-byte launch limit) returning name SIPHON, symbol SIPH, 18 decimals. The constructor mints the full one billion tokens to msg.sender once and emits Transfer plus a SupplyMinted event. It inherits only OpenZeppelin v5.4.0 ERC20, so there is no owner, mint, burn, pause, blacklist, fee, or upgrade path, and no external calls in the constructor.
• foundry.toml pins solc = "0.8.26", Cancun, optimizer on, bytecode_hash = "none" and cbor_metadata = false. The deployed bytecode tail confirms no metadata hash. ffi is off and fs_permissions is empty.
• lib/: forge-std v1.9.7 and OpenZeppelin Contracts v5.4.0 vendored as plain files from release tarballs. No submodules, so the verifier builds with no network.
• test/SiphonToken.t.sol and test/SiphonToken.invariant.t.sol: 30 tests covering metadata, exact supply to an EOA and to a contract deployer, transfer and allowance success paths, insufficient balance and allowance reverts, zero-address reverts, rejection of fourteen admin and mint selectors from both a stranger and the deployer, ETH rejection, a bytecode scan for DELEGATECALL, CALLCODE and SELFDESTRUCT, four fuzz tests, and two invariants over random transfer sequences.
• script/DeploySiphonToken.s.sol: reference script whose deploy() function is unit-tested and reads no environment.
• README.md: assumptions, deployment parameters, the manifest fields the launch step will record, launch-policy values, operational responsibilities, and an "After launch" section stating there is nothing to configure.

Verification

• forge build, forge test and forge fmt --check pass, including with the verifier's fuzz seed.
• A scratch replay of the protected floor's non-pool checks passed. It deploys the creation code via CREATE2 from a factory stand-in on chain id 4663, then checks supply, the whole swarm share arriving and being claimable, the no-supply-growth selector loop, and the no-freeze selector loop.
• The pool seed and swap checks could not be replayed locally because they need the verifier's own v4 harness. Since the token has unconditional transfers with no fee, those flows move exactly what they say.

Committed as ee98aea on main with 376 tracked files and nothing from test/scratch/. The commit used an explicit author identity because the repository had none configured.

The math review of SiphonToken found no defects. The findings file holds an empty list and a nine-row coverage record. The working tree is clean apart from that file.

What was checked

• Math Precision. The only arithmetic the token adds is the supply constant. It evaluates to exactly 1e27, with the exponent typed as uint256 under the solc 0.7+ literal rule, and sits far below the uint256 ceiling. There are no divisions, fees, casts, or scale conversions anywhere in the contract.
• Boundary. The token makes no external calls, has no payable, receive, or fallback, and decodes no bytes. The only sentinel branches are OpenZeppelin's zero-address checks, which revert rather than silently no-op. Max-uint transfer reverts cleanly with ERC20InsufficientBalance, and allowance at max-1 is treated as finite.
• Numerical Gap. The supply-equals-sum-of-balances invariant rests on OpenZeppelin's unchecked blocks, whose precondition is enforced by the preceding checked comparison. The existing invariant suite and a scratch fuzz both confirm it. The launch split percentages all divide 1e27 exactly, so the factory's share math loses nothing on this supply.

Verification performed

• The vendored ERC20, Context, IERC20, IERC20Metadata and IERC6093 files are byte-identical to upstream OpenZeppelin v5.4.0.
• The full existing suite passes with 30 tests, including the invariant run.
• A scratch test of eight boundary cases passed and was removed afterwards.

Leads not promoted. The aderyn large-numeric-literal line is a style note. The DECIMALS constant is not wired into decimals(), which is a latent coupling with no failing input today. Both are recorded as coverage rows, not findings.

Nothing was unreached in the assigned area.

I've added 25 tests in two new files under test/ and found no defects in the token. The full suite of 55 tests passes with the verifier's fuzz seed, and forge build is clean. I haven't committed anything.

test/SiphonToken.edges.t.sol (24 tests) covers the edge inputs the existing suite didn't pin down:

• Launch flows: the token is deployed through CREATE2 and the supply split in the same call, mirroring the launch: 10% to the distributor, 88% to the pool and 2% to the remainder address. Each share arrives exactly, nothing is left on the deployer, and reusing the same salt reverts.
• Zero amounts and zero addresses:
  • A zero-amount transferFrom succeeds with no allowance.
  • Pulling from the zero address reverts, even for zero tokens.
  • Sending to the zero address reverts, even for zero tokens.
  • A failed pull to the zero address leaves the allowance untouched.
  • Tokens sent to the token contract itself are accepted and can't be recovered, as the README says.
• Allowances:
  • A new approval replaces the old one rather than adding to it.
  • Approving zero revokes.
  • Allowances are per spender.
  • An allowance spent exactly to zero then refuses one more wei.
  • Pulling your own tokens needs a self-allowance.
  • The full supply can move through transferFrom.
  • An allowance larger than the balance still can't take more than the balance.
  • A transferFrom emits only a Transfer event.
• Return data and events: transfer returns exactly one true word, an unknown function reverts with empty data, and the constructor emits exactly two events.
• Fuzz tests (1,000 runs each):
  • Any approved amount is stored exactly.
  • An address that holds nothing can't move anything.
  • Two-hop transfers lose nothing.
  • An unlimited allowance never goes down.
  • One wei below unlimited does go down.

test/SiphonToken.ghost.invariant.t.sol keeps its own record of every balance and allowance across five holders, one of them the token contract. It makes random sequences of valid calls and of calls that must fail: transfers over the balance, transfers to the zero address, and pulls over the allowance or over the owner's balance. It ran 25,600 calls across all seven actions. After every sequence it checks that:

• the supply is still exactly 1,000,000,000 × 10¹⁸;
• every balance and allowance matches the record, and the balances add up to the supply;
• the zero address holds nothing;
• no call that should fail succeeded, and no call that should succeed failed.

Run counts are set in the test files, since foundry.toml isn't mine to change.

One fuzz test failed on the first run, and the cause was my test, not the token: the fuzzer picked the zero address as the caller, and the token correctly rejects that sender before it checks the balance. I now keep the zero address out of that input.

The token is a plain OpenZeppelin v5 ERC-20 with no owner, mint, burn, fee or pause, and nothing behaved wrongly under any of these tests. So I didn't write .imd-findings.json. The two earlier test files are unchanged.

The review is complete. No defects were found in the assigned area, and the findings file is written with an empty list and full coverage.

What I checked. The token at src/SiphonToken.sol is a 39-line wrapper over OpenZeppelin ERC20 with no constructor arguments, no owner, no mint, burn, pause, fee or hook. I applied the Senior Auditor's Mindset and all three guides for my area (Economic Security, Invariant, Flow Gap) myself, with no helpers.

• Dependency integrity. The real execution surface is the vendored library, so I hashed the five OpenZeppelin files the token compiles against and compared them to the upstream v5.4.0 tag. All five match byte-for-byte. No delegatecall, callcode or selfdestruct exists in the chain.
• ABI and storage. The compiled ABI exposes only the three state-changing ERC-20 functions plus views and five constant getters. Storage is the standard five OpenZeppelin slots.
• Invariants. Supply is minted once in the constructor and equals exactly 1e27. The burn path is internal and unreachable. Balances always sum to supply. The project's own invariant suite passed 128,000 handler calls with the verifier's fuzz seed.
• Flows and economics. I wrote eight scratch probes covering the exact launch flows (factory to distributor to claimant, factory to a pulling pool stand-in, trader buy and sell, remainder to requester), self-transfer of the whole balance, spender equal to owner, transfer to the token itself, max-uint amount, round-trip losslessness under fuzz, and the standard ERC-20 approve race. All passed and every flow arrived exact. The approve race is inherent to the ERC-20 interface and is recorded in coverage as a standard property, not reported as a defect.
• Static analysis leads. Slither reported nothing. Aderyn's one low lead, the large numeric literal at line 24, is stylistic and the value was verified equal to the brief.

Output. The file .imd-findings.json holds zero findings and nine coverage rows: one holds row for each of the three listed entry points, plus rows for the supply invariant, the balance-conservation invariant, the launch-flow invariant, dependency integrity, constructor-time state, and the reference deploy script. The scratch test directory was removed, and the working tree is unchanged apart from the findings file, which the repository already excludes from git.

Not covered. The deployer's price derivation and the manifest step do not exist in this tree, so I could not review them.

The review is complete and the findings file is written and validated. No source files were changed; only .imd-findings.json and the scratch test under test/scratch/ were created, and git reports a clean tracked tree.

Outcome: no defects in the permissions area. SIPHON is a 35-line wrapper over an unmodified OpenZeppelin v5.4.0 ERC-20 with no owner, role, modifier, initializer, mint, burn, pause, blacklist, receive, fallback or proxy. The three state-changing entry points bind strictly to the caller or the caller's own allowance.

What I checked, per guide

• Access Control. Mapped every storage writer. Balances and supply are written only through transfer paths bound to the caller, and through _mint in the constructor. Allowances are written only by the owner's own approve or by decrementing the caller's own row. The burn branch inside _update is unreachable because _transfer rejects the zero address first. Context's sender is plain msg.sender, so no forwarder confusion. The compiled ABI confirms the surface is exactly the three listed entry points plus views.
• Trust Gap. No privileged actor, setter, fee recipient, oracle or price formula exists in the token, so none of the four seams is present. The deployer's full starting balance is an economic position the README documents as the factory's distribution duty, not a permission.
• Asymmetry. The approve/pull pair shows the standard ERC-20 overwrite-versus-decrement race. I reported it at info severity with a reproduction confirmed by a scratch test, framed as a holder trust assumption rather than a code defect, since the vendored library matches upstream byte-for-byte and OpenZeppelin v5 removed the allowance helpers by design.

Other evidence. The full project suite passed, with 30 tests including 256-run fuzzing and the two invariants. The vendored ERC20 and its four parents diffed identical to the upstream v5.4.0 tag. The aderyn large-literal lead is readability only, since a unit test asserts the constant's value.

Coverage record. All three verifier entry points have rows: approve marked finding (info, reference 1), transfer and transferFrom marked holds. Seven further rows record the constructor, the no-admin invariant, writer-guard parity, the trust-gap seams, the library diff, the static-analysis lead and the reference deploy script. Nothing in my area was unreached.

launch.json is written and verified. It is the only new file in the tree.

What the manifest says

• Kind is custom_token. The token contract is SiphonToken, named SIPHON with symbol SIPH and 18 decimals.
• constructorArgs is empty. The compiled ABI confirms the constructor takes zero parameters.
• totalSupply is 1000000000000000000000000000, matching the constant the constructor mints to msg.sender.
• contracts is empty. The accepted tree has no application contracts, only the token.
• pool and economics are copied exactly as the launch gives them: native ETH, fee 12500, tick spacing 60, the one-to-one provenance price, and the requester's economics object verbatim.
• notes describe only what is in the tree, in 883 characters.

Checks run

• forge build compiled cleanly with solc 0.8.26.
• forge test with the verifier's fuzz seed passed all 30 tests across both suites, including the 256-run invariant suite.
• The manifest parses as JSON with only the schema's top-level keys, and all addresses are lowercase.

Working tree No tracked file was modified. The untracked dotfiles that git status lists are sandbox device nodes owned by nobody, not files of mine. The protected tests themselves need the verifier's environment (factory, pool manager and launch number) and cannot be run here, but the token satisfies every behaviour they probe: fixed supply minted to the deployer, no admin surface, no transfer fee, no DELEGATECALL or SELFDESTRUCT.

The review is complete. The findings file is written and the working tree is clean apart from it.

Outcome. The SIPHON token has no defects. It is an unmodified OpenZeppelin v5.4.0 ERC-20 with no constructor arguments, no owner, no mint or burn path after deployment, and no fee or transfer restriction.

Specialist findings. Four specialists and the independent tester reported one finding in total, from audit_permissions. It is the standard ERC-20 approve race, where a spender can front-run an allowance reduction and spend both amounts. I reproduced it with a scratch test and kept it at info severity as a holder trust assumption, since it is inherent to the ERC-20 standard and the vendored library is byte-identical to upstream. No duplicates existed to merge. The static analysis lead about a large numeric literal is a readable underscore literal that computes the correct supply, so it was not kept.

My own checks.

• All 55 project tests pass, including the 256-run invariant suites.
• The compiled runtime and creation code contain no DELEGATECALL, CALLCODE or SELFDESTRUCT, and both are far below the size limits.
• The five vendored OpenZeppelin files diff identically against upstream v5.4.0.
• The manifest in launch.json matches the code: empty constructor arguments, 18 decimals and the exact minted supply.
• The protected tests could not run locally because they need the network's own harness, which this tree does not vendor. Every behaviour they assert was traced by hand and holds.

Coverage. All three entry points are answered, plus rows for the constructor and supply, bytecode deployability, the manifest and the vendored dependencies.