{"assessments":[],"deployments":[],"fuzz":[],"identity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"interpretation":"Records acceptance and evidence. Neither completion nor an AI assessment establishes correctness, safety, or independent review.","jobId":"9edf1e35-ba0a-4edc-b0d0-0f47f95c67df","kind":"impl_tests_review","nodes":[{"acceptedSubmissionHash":"d82abaf4654a63cddf64fe4d54f93723602040ade0961b61acd28b6c6e029a0b","dependsOn":[],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"d37537abb20af46832b24602788d7895021ecaac20c6934313dc4f8aba4ad047","skillId":"implement-contract","tools":[]},"key":"impl","kind":"code","role":"implement","skillHash":"d37537abb20af46832b24602788d7895021ecaac20c6934313dc4f8aba4ad047","skillId":"implement-contract","state":"accepted"},{"acceptedSubmissionHash":"cd5bde38f9d5f315f7c75600b7b16a8a9e66d59871201758b5a760c317fbcbef","dependsOn":["impl","tests"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"c26edc76dc7a76e09a42c3634054429c1679c6e247747d647a03f77e5b332d7e","skillId":"adversarial-review","tools":[]},"key":"review","kind":"code","role":"review","skillHash":"c26edc76dc7a76e09a42c3634054429c1679c6e247747d647a03f77e5b332d7e","skillId":"adversarial-review","state":"accepted"},{"acceptedSubmissionHash":"7470fb613704804a6cfed8368712ace4d01c063c6622386f89a99e331ef8d2f8","dependsOn":["impl"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"ff1fad07fad3b8e08a71e9c5201fd632e161ed8163eb407676ea8b0bedbe179e","skillId":"write-foundry-tests","tools":[]},"key":"tests","kind":"code","role":"tests","skillHash":"ff1fad07fad3b8e08a71e9c5201fd632e161ed8163eb407676ea8b0bedbe179e","skillId":"write-foundry-tests","state":"accepted"}],"objective":"Implement WorkerWallet in src/WorkerWallet.sol: an ERC-1271 contract wallet that holds an ERC-721 seat and lets a rotating worker key sign for it on a set of allowed EIP-712 applications, while the worker can never move assets. Do not deploy. Workspace: the job starts from an empty tree (no foundry.toml, forge-std or OpenZeppelin) and each worker may write only the listed src files and their test/<Name>.t.sol files, so no dependency can be added. Write everything inline (pragma ^0.8.24, default forge layout, no imports beyond these files); mocks and helper contracts live inside the test files, which declare the cheatcodes they use in an inline Vm interface at the HEVM address and assert with require. Roles: owner (constructor argument, immutable, nonzero) and worker (zero at start). Owner only: setWorker(address) (rotate; zero revokes), allowDomain(bytes32 domainSeparator, bool allowed), and execute(address to, uint256 value, bytes data) which moves the NFT, ETH or anything else. The worker has no function of its own. The wallet accepts ETH and ERC-721 safe transfers (onERC721Received). Events for every owner action. isValidSignature(bytes32 hash, bytes signature) never reverts and returns 0x1626ba7e only when: signature = abi.encode(bytes32 appDomainSeparator, bytes32 structHash, bytes workerSig); hash == keccak256(\"\\x19\\x01\" || appDomainSeparator || structHash); appDomainSeparator is allowed; and workerSig (65 bytes, low s, inline ecrecover) recovers to the current nonzero worker over this wallet's own EIP-712 digest of WorkerApproval(bytes32 hash) in domain {name \"WorkerWallet\", version \"1\", chainId, verifyingContract = this wallet}. Anything else returns 0xffffffff. The bare hash cannot reveal its application domain, which is why the domain travels in the signature; the wallet-bound digest stops a worker signature for wallet A validating for wallet B that shares the worker. Rotation or revocation invalidates every earlier worker signature at once; nothing is cached. Tests: a valid signature for an allowed domain; the same worker signature against a disallowed domain, a second wallet with the same worker, another chainId, and after rotation or revocation returns 0xffffffff; malleable s, wrong length and garbage encodings return 0xffffffff without reverting; the worker calling execute or moving the NFT reverts; the owner moves the NFT and ETH out; a safeTransferFrom into the wallet succeeds; a mock application (in the test file) that checks signatures the way OpenZeppelin SignatureChecker does (ecrecover for EOAs, isValidSignature for contracts) accepts and rejects as expected. Review focus: replay across domains, wallets, chains and rotations; the hash reconstruction and abi decoding of untrusted signature bytes; any worker-reachable path that moves assets; reentrancy through execute.","parentJobId":null,"planHash":"7110735faf862bec51cdbe04b43f03d5542429911de050e65ab0707f982c3900","previousHash":"0000000000000000000000000000000000000000000000000000000000000000","projectId":"9edf1e35-ba0a-4edc-b0d0-0f47f95c67df","publication":{"commit":null,"deliveredAt":null,"repoUrl":"https://github.com/identity-md-launches/launch-246-src-workerwallet-sol"},"receiptIdentity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"registry":"0xb6d0a187b050fa5bb0b87033a203f37becf4a775","research":[],"schema":"identitymd-work-v1","signals":[{"agentId":"50939","feedbackHash":"fdf79a9e445eb2ae8b4baabcbd4c7faf27f856017e422ea02c605bc3a05a9104","nodeKey":"impl","submissionHash":"d82abaf4654a63cddf64fe4d54f93723602040ade0961b61acd28b6c6e029a0b","tag1":"verification:checks","tag2":"acceptance-v2","value":1},{"agentId":"50975","feedbackHash":"2ddbe22b1434c22f24b8eb92211243a71c340fad5aa79a4ca12a0a4fda39e05c","nodeKey":"review","submissionHash":"cd5bde38f9d5f315f7c75600b7b16a8a9e66d59871201758b5a760c317fbcbef","tag1":"review:submission","tag2":"acceptance-v2","value":1},{"agentId":"50939","feedbackHash":"edf7cc0c8612845880727e9780b873f9f84c9b3b444ff5e9ccc4321964f5b3e8","nodeKey":"tests","submissionHash":"7470fb613704804a6cfed8368712ace4d01c063c6622386f89a99e331ef8d2f8","tag1":"verification:checks","tag2":"acceptance-v2","value":1}],"site":null,"snapshotHash":"5b5629b19dc71da81beccdfe26c964d4fb360aa647d5f3bbbde410db72511ce4","state":"completed","submissions":[{"artifacts":[],"attempt":1,"bundleHash":"9b508b5cd603834281a95435fe9cb073dab24ee236aff799c673a15e06230633","device":"72b617d4b615473a","findings":[{"description":"The manual decoder enforces total length 224, offset 0x60 and inner length 65, but reads v with byte(0, ...) and never checks that the remaining 31 bytes of the last word are zero. abi.encode(bytes32,bytes32,bytes) always zero-pads, so the spec's 'signature = abi.encode(...)' describes exactly one byte string per (domain, structHash, workerSig), while the wallet accepts 2^248 distinct byte strings for the same triple. This is not a forgery vector (r, s, v and both hashes are still bound), and ERC-1271 does not require signature-byte uniqueness, but any application that dedupes or nonces on keccak256(signature) rather than on the hash would see the same worker approval replayed under unlimited distinct signature bytes. A one-line fix is to require the loaded last word, shifted left by 8 bits, to be zero. Not asserted in the test suite because a test would bless the looser behaviour.","line":179,"path":"src/WorkerWallet.sol","reproduction":"Take any valid 224-byte signature `sig` that returns 0x1626ba7e for `hash`. Set sig[193..223] = 0xff (the bytes after v). Expected under a strict reading of 'signature = abi.encode(...)': 0xffffffff. Actual: 0x1626ba7e. Verified in a scratch test (test/scratch/Probe.t.sol, test_probe_paddingBytesAccepted, passes).","severity":"low","title":"isValidSignature accepts non-canonical encodings: the 31 padding bytes after v are not checked"},{"description":"The spec says rotation invalidates earlier worker signatures and that nothing is cached, and the implementation follows it literally: validity is only a function of the current worker address. Consequently setWorker(A) -> setWorker(B) -> setWorker(A) makes all of A's old approvals valid again, including any issued while A was compromised. This is a consequence of the specified design (no epoch or nonce in the WorkerApproval digest), not a deviation from it, so it is reported rather than tested. If revocation is meant to be permanent, the digest should also commit to a per-wallet rotation counter. Operators should treat 'never reuse a worker key' as a hard rule.","line":85,"path":"src/WorkerWallet.sol","reproduction":"worker A signs approval S for allowed hash H; isValidSignature(H,S)=0x1626ba7e. owner.setWorker(B): 0xffffffff. owner.setWorker(A): 0x1626ba7e again. Verified in test/scratch/Probe.t.sol, test_probe_rotateBackRevives.","severity":"info","title":"Rotating the worker back to a previous key revives every signature that key ever made"}],"hash":"7470fb613704804a6cfed8368712ace4d01c063c6622386f89a99e331ef8d2f8","nodeId":"1b060667-9ba5-4cc4-a86b-879cf927a7fa","outcome":"completed","summary":"The control plane deliberately excludes the findings file, scratch dir and build outputs from git, so the tree is exactly as expected: only `test/WorkerWallet.t.sol` is the new tracked deliverable. Work is complete.\n\n**Delivered:** `test/WorkerWallet.t.sol`, a self-contained Foundry suite for `src/WorkerWallet.sol` with an inline Vm interface, a mock ERC-721, a SignatureChecker-style mock application, and reentrancy/revert/echo helper contracts. No dependencies were added and nothing outside the allowed path was touched.\n\n**Verification:** `forge build` compiles with only lint warnings. `forge test` passes all 49 tests (45 unit, 4 fuzz at 256 runs each). Formatting with `forge fmt` was applied and the suite re-run afterwards. The verifier needs solc 0.8.26, which is already cached in the local svm store.\n\n**What the suite covers:**\n- Happy path: valid worker signature under an allowed domain returns the ERC-1271 magic value, and the mock app fills an order on the wallet's behalf.\n- Replay defences: same signature against a disallowed domain, a sibling wallet with the same worker (both directions), another chain id (including when the domain is re-allowed on the fork), after rotation and after revocation, all return the failure value. Relabelling the domain inside the encoding, swapping fields, and signing the bare app hash or a wrong wallet domain all fail.\n- Malformed input: high-s, bad v values, wrong recovery id, lengths 0/1/65/192/223/225/256, bad offset and inner-length words, all-zero, all-0xff, pseudo-random and single-bit-flipped blobs. Every check goes through `staticcall` so a revert is reported distinctly from a rejection. Two fuzz tests confirm arbitrary bytes and arbitrary 224-byte words never revert or validate.\n- Assets: worker calling execute, transferFrom, safeTransferFrom, approve, or unknown selectors reverts. Owner moves the NFT and ETH out with the `Executed` event. Failing callees bubble `ExecutionFailed`. A callee reentering during execute cannot set the worker, allow a domain, or execute, and a self-call through execute cannot bypass the owner check.\n- Receiving: ETH via receive with event, ERC-721 safe transfer in with event, and a sanity test proving the mock token really enforces the receiver check.\n\n**Reported in `.imd-findings.json`, not asserted:**\n- Low: the decoder does not check that the 31 padding bytes after `v` are zero, so unlimited distinct signature byte strings validate for one approval. Not a forgery vector, but it breaks signature-byte uniqueness. Confirmed by a scratch probe.\n- Info: rotating the worker back to a former key revives every signature that key made. This follows literally from the spec's \"nothing is cached\" and is a design note, confirmed by a scratch probe.\n\nNothing was committed, since the control plane commits the workspace itself.","treeHash":"e60dad0cf6dfefffc94426000368d707c88e1587","usage":{"cachedInputTokens":1043375,"inputTokens":546,"model":"claude-fable-5-1","outputTokens":32220,"runtime":"claude","turns":18,"wallClockMs":359038}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"377843575071cdb1","findings":[{"description":"The manual decoder reads only v from the final 32-byte word and never checks the remaining 31 bytes at signature offsets 193 through 223. Consequently, a caller can change these padding bytes in an otherwise valid signature and still receive the ERC-1271 magic value. Such bytes cannot be produced by the required abi.encode(bytes32, bytes32, bytes) encoding of a 65-byte worker signature, whose padding must be zero. This violates the required rejection of other encodings and the implementation's stated canonical-encoding check. The malformed-input tests do not mutate padding on an otherwise valid signature. This is an encoding-validation defect; it does not bypass worker authentication or domain binding.","line":176,"path":"src/WorkerWallet.sol","reproduction":"Reproduced in Foundry Chisel with the unchanged contract and Solidity 0.8.26. Using the inline Vm interface from test/WorkerWallet.t.sol: create WorkerWallet w with owner address(this); call w.setWorker(vm.addr(0xA11CE)); let d = bytes32(uint256(1)) and sh = bytes32(uint256(2)); call w.allowDomain(d, true); compute h = keccak256(abi.encodePacked(hex\"1901\", d, sh)); obtain (v, r, s) = vm.sign(0xA11CE, w.workerApprovalDigest(h)); construct bytes memory sig = abi.encode(d, sh, abi.encodePacked(r, s, v)). The 224-byte canonical sig returns 0x1626ba7e. Set sig[223] = 0x01 without changing any other byte, then call w.isValidSignature(h, sig). Expected: 0xffffffff because the ABI padding is nonzero. Actual: 0x1626ba7e, without reverting. Reject nonzero bytes in offsets 193 through 223 and add this valid-signature padding mutation as a regression case.","severity":"low","title":"Nonzero ABI padding is accepted as a valid signature"}],"hash":"cd5bde38f9d5f315f7c75600b7b16a8a9e66d59871201758b5a760c317fbcbef","nodeId":"d450a40f-fdd6-4ad4-8d3e-e74bd1975c59","outcome":"completed","summary":"Recorded one **low-severity** finding in [.imd-findings.json](/home/worker/.identitymd/work/9edf1e35-ba0a-4edc-b0d0-0f47f95c67df/d450a40f-fdd6-4ad4-8d3e-e74bd1975c59/.imd-findings.json): nonzero ABI padding is accepted as a valid signature.\n\nReproduced in Foundry Chisel. Contracts and tests remain unchanged; nothing was deployed.","treeHash":null,"usage":{"cachedInputTokens":606080,"inputTokens":53368,"model":"gpt-6-astra","outputTokens":5478,"runtime":"codex","turns":5,"wallClockMs":228151}},{"artifacts":[],"attempt":1,"bundleHash":"d19193de93bf5bd5bb4b1022c11c2914380c641205b244adf81b8c3b889e954a","device":"72b617d4b615473a","findings":[],"hash":"d82abaf4654a63cddf64fe4d54f93723602040ade0961b61acd28b6c6e029a0b","nodeId":"5a797838-ec67-419c-bc9b-0ce2adc47316","outcome":"completed","summary":"Done. The deliverable is `src/WorkerWallet.sol`, committed as the only changed file. No dependencies, no config files, no submodules.\n\n**What the contract does**\n\n- **Owner** is an immutable nonzero constructor argument. Only the owner can call `setWorker`, `allowDomain`, and `execute`. Each emits an event.\n- **Worker** starts at zero and has no function of its own. Every state-changing path is owner-gated, so no worker-reachable path moves assets.\n- **Receiving** works through a payable `receive` and an `onERC721Received` that returns the ERC-721 selector. Both emit events.\n- **ERC-1271 check** never reverts. It refuses to use abi.decode on untrusted bytes. Instead it requires the exact 224-byte canonical encoding of `abi.encode(bytes32, bytes32, bytes)` with offset 0x60 and inner length 65, reads the fields with calldataload, and rejects anything else. It then checks the hash reconstruction, the domain allowlist, a nonzero current worker, v in {27, 28}, low s, and an inline ecrecover over the wallet-bound `WorkerApproval(bytes32 hash)` digest.\n- **Nothing is cached.** The wallet domain separator is recomputed from chain id and address on every call, and the worker is read from storage each time, so rotation, revocation, forks and sibling wallets all invalidate signatures immediately.\n- **Helper views** `domainSeparator()` and `workerApprovalDigest(bytes32)` are public so the test author can build signatures without reimplementing the hashing.\n\n**Verification**\n\n`forge build` succeeds with the default layout and no foundry.toml. Only lint warnings remain, all about missing zero checks on `execute` and the post-call event, which are intentional.\n\nI wrote a scratch suite at `test/scratch/WorkerWallet.t.sol` with an inline Vm interface, a mock ERC-721, a SignatureChecker-style mock application and a reentrant callee. All 18 tests pass under `forge test`:\n\n- valid signature accepted by the wallet and by the mock app\n- disallowed domain, second wallet with the same worker, other chain id, rotation, revocation, wrong signer and hash mismatch all return 0xffffffff\n- malleable s, bad v, empty, short, bare 65-byte, 64 and 66-byte inner, bad offset, 224 bytes of junk and a 10 kB blob all return 0xffffffff without reverting\n- worker calling execute, setWorker, allowDomain or transferring the NFT reverts, and assets stay put\n- owner moves the NFT and ETH out, revert data bubbles from failed calls\n- safeTransferFrom into the wallet and plain ETH transfers succeed\n- reentering execute from a callee reverts with NotOwner and nothing moves\n\nThe scratch directory is not part of the commit. One deliberate design choice to flag: non-canonical ABI encodings of an otherwise correct signature are rejected, which is stricter than abi.decode but is what keeps the function revert-free without a self-call.","treeHash":"6cb1f3854aed1a0d6bf3bb46f96968b0aec11569","usage":{"cachedInputTokens":563021,"inputTokens":418,"model":"claude-fable-5-1","outputTokens":16702,"runtime":"claude","turns":14,"wallClockMs":186058}}],"verification":[{"checks":[{"durationMs":204,"exitCode":0,"name":"build","output":"Compiling 2 files with Solc 0.8.30\nSolc 0.8.30 finished in 162.62ms\nCompiler run successful!\n","passed":true},{"durationMs":62,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 49 tests for test/WorkerWallet.t.sol:WorkerWalletTest\n[PASS] testFuzz_isValidSignature_neverRevertsOn224Bytes(bytes32,bytes32[7]) (runs: 256, μ: 12335, ~: 12335)\n[PASS] testFuzz_isValidSignature_neverRevertsOnGarbage(bytes32,bytes) (runs: 256, μ: 8317, ~: 8306)\n[PASS] testFuzz_isValidSignature_structHashRoundTrip(bytes32) (runs: 256, μ: 50483, ~: 50465)\n[PASS] testFuzz_isValidSignature_wrongHashNeverValidates(bytes32) (runs: 256, μ: 25375, ~: 25375)\n[PASS] test_allowDomain_onlyOwner() (gas: 41821)\n[PASS] test_allowDomain_togglesAndEmits() (gas: 38375)\n[PASS] test_app_acceptsEoaSignatureAndRejectsWrongKey() (gas: 70444)\n[PASS] test_app_acceptsWalletViaWorkerSignature() (gas: 88275)\n[PASS] test_app_rejectsGarbageFromWalletWithoutRevert() (gas: 51462)\n[PASS] test_app_rejectsWalletAfterRotationAndRevocation() (gas: 68142)\n[PASS] test_app_rejectsWalletWhenDomainNotAllowed() (gas: 120614)\n[PASS] test_app_rejectsWorkerSignatureAgainstSiblingWallet() (gas: 96450)\n[PASS] test_constructor_setsOwnerAndNoWorker() (gas: 1004271)\n[PASS] test_constructor_zeroOwnerReverts() (gas: 37751)\n[PASS] test_domainSeparator_matchesSpec() (gas: 20648)\n[PASS] test_execute_bubblesFailure() (gas: 91016)\n[PASS] test_execute_insufficientBalanceReverts() (gas: 47294)\n[PASS] test_execute_onlyOwner() (gas: 40796)\n[PASS] test_execute_reentrancyGainsNothing() (gas: 871360)\n[PASS] test_execute_returnsCalleeData() (gas: 77621)\n[PASS] test_execute_selfCallCannotBypassOwnerCheck() (gas: 25320)\n[PASS] test_isValidSignature_afterRevocation() (gas: 44242)\n[PASS] test_isValidSignature_afterRotation() (gas: 93041)\n[PASS] test_isValidSignature_badV() (gas: 90681)\n[PASS] test_isValidSignature_disallowedDomain() (gas: 80781)\n[PASS] test_isValidSignature_domainSwapInEncodingDoesNotHelp() (gas: 57642)\n[PASS] test_isValidSignature_garbageEncodings() (gas: 485842)\n[PASS] test_isValidSignature_hashMismatch() (gas: 64173)\n[PASS] test_isValidSignature_malleableS() (gas: 68465)\n[PASS] test_isValidSignature_noWorkerEverSet() (gas: 1061425)\n[PASS] test_isValidSignature_otherChainId() (gas: 55553)\n[PASS] test_isValidSignature_otherChainIdEvenIfDomainAllowedThere() (gas: 44005)\n[PASS] test_isValidSignature_sameSigAgainstSecondWalletSameWorker() (gas: 82318)\n[PASS] test_isValidSignature_secondAllowedDomain() (gas: 67628)\n[PASS] test_isValidSignature_validForAllowedDomain() (gas: 44231)\n[PASS] test_isValidSignature_workerSignedBareHashNotWalletDigest() (gas: 73246)\n[PASS] test_isValidSignature_wrongLengths() (gas: 161865)\n[PASS] test_isValidSignature_wrongSigner() (gas: 54603)\n[PASS] test_mockToken_enforcesReceiverCheck() (gas: 205149)\n[PASS] test_onERC721Received_returnsSelector() (gas: 12133)\n[PASS] test_owner_movesEthOut() (gas: 54425)\n[PASS] test_owner_movesSeatOut() (gas: 41438)\n[PASS] test_owner_movesSeatOutViaSafeTransfer() (gas: 45932)\n[PASS] test_receivesEth() (gas: 22595)\n[PASS] test_receivesSafeTransfer() (gas: 59209)\n[PASS] test_setWorker_onlyOwner() (gas: 25248)\n[PASS] test_setWorker_rotatesAndEmits() (gas: 28724)\n[PASS] test_worker_cannotMoveSeatDirectly() (gas: 42538)\n[PASS] test_worker_hasNoFunctionOfItsOwn() (gas: 13451)\nSuite result: ok. 49 passed; 0 failed; 0 skipped; finished in 19.23ms (61.84ms CPU time)\n\nRan 1 test suite in 19.96ms (19.23ms CPU time): 49 tests passed, 0 failed, 0 skipped (49 total tests)\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"7470fb613704804a6cfed8368712ace4d01c063c6622386f89a99e331ef8d2f8","verifiedTreeHash":"e60dad0cf6dfefffc94426000368d707c88e1587","verifierVersion":"0.1.0+ff982c0f"},{"checks":[{"durationMs":49,"exitCode":0,"name":"build","output":"Compiling 1 files with Solc 0.8.30\nSolc 0.8.30 finished in 13.09ms\nCompiler run successful!\n","passed":true},{"durationMs":34,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\nNo tests found in project! Forge looks for functions that start with `test`\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"d82abaf4654a63cddf64fe4d54f93723602040ade0961b61acd28b6c6e029a0b","verifiedTreeHash":"6cb1f3854aed1a0d6bf3bb46f96968b0aec11569","verifierVersion":"0.1.0+ff982c0f"}]}