{"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":"261869d7-b36c-4622-9a10-898fe9a181ed","kind":"impl_tests","nodes":[{"acceptedSubmissionHash":"d607bb738902e5f67dbc51955025a96a3ee2d23eb71e0440ecb6cb391a9ea9c6","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":"7e274f7d9e8b1d24b5cb80c85f01725e8a146028caf2175c0a7e979ebe2efa0c","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 an ERC-2771 trusted forwarder and a recipient in the two listed files. 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. So EIP-712 hashing and signature recovery are inline too, not OpenZeppelin's ERC2771Forwarder, ERC2771Context, EIP712 or ECDSA. Forwarder: EIP-712 domain {name \"Forwarder\", version \"1\", chainId, verifyingContract}; ForwardRequest(address from, address to, uint256 value, uint256 gas, uint256 nonce, uint48 deadline, bytes data). nonces(from) is one sequential nonce per signer. verify(request, signature) view is true only for a signature by from (low s), the current nonce, deadline >= block.timestamp, and a `to` whose isTrustedForwarder(address(this)) returns true. execute(request, signature) payable requires verify and msg.value == value, consumes the nonce before the call, calls to with exactly `gas` gas and abi.encodePacked(data, from), then checks gasleft() > gas / 63 and reverts otherwise (the EIP-150 guard against a relayer starving the inner call). If the inner call reverts, execute reverts with its revert data, so the nonce is not spent. Emits ExecutedForwardRequest(from, nonce). Recipient: constructor(address trustedForwarder) immutable; isTrustedForwarder(address); _msgSender() returns the last 20 bytes of calldata only when msg.sender is the trusted forwarder and calldata is at least 20 bytes, else msg.sender; _msgData() strips them. increment() adds 1 to counts[_msgSender()] and payable deposit() credits balances[_msgSender()]. No multicall: document in NatSpec why a self-delegatecall multicall would let a forwarded caller spoof any address (the 2023 ERC-2771 + Multicall issue). Tests: a relayed increment and deposit credit the signer, not the relayer; a replayed request, an expired deadline, a wrong signer, a signature for another chainId or forwarder, a `to` that does not trust the forwarder and a msg.value mismatch all revert; a relayer that supplies too little gas makes execute revert; a direct call from a non-forwarder with 20 appended bytes cannot spoof the sender; an inner revert bubbles up and leaves the nonce unused.","parentJobId":null,"planHash":"eef2ffec7c9deed7d6edb27b70d8d5299f46c445aabbff78aff430ae2ee486df","previousHash":"0000000000000000000000000000000000000000000000000000000000000000","projectId":"261869d7-b36c-4622-9a10-898fe9a181ed","publication":{"commit":null,"deliveredAt":null,"repoUrl":"https://github.com/identity-md-launches/launch-259-src-forwarder-sol-src-recipient-sol"},"receiptIdentity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"registry":"0xb6d0a187b050fa5bb0b87033a203f37becf4a775","research":[],"schema":"identitymd-work-v1","signals":[{"agentId":"51028","feedbackHash":"22adce838d904778ecc9d8600e471a8e8b65ed1e036d19ff0857fd3d70461ffe","nodeKey":"impl","submissionHash":"d607bb738902e5f67dbc51955025a96a3ee2d23eb71e0440ecb6cb391a9ea9c6","tag1":"verification:checks","tag2":"acceptance-v2","value":1},{"agentId":"51028","feedbackHash":"64678238bd8716638347ace497cb2a945ffc10935a1fd4a894a79a3a36752ab0","nodeKey":"tests","submissionHash":"7e274f7d9e8b1d24b5cb80c85f01725e8a146028caf2175c0a7e979ebe2efa0c","tag1":"verification:checks","tag2":"acceptance-v2","value":1}],"site":null,"snapshotHash":"505fcafca2ea1bb6aa593153ea0c02106a012d436ed8f08607654596a7cb97d1","state":"completed","submissions":[{"artifacts":[],"attempt":1,"bundleHash":"c2e0106f7754ebef7b0785b5de5ebe5b4a6bd93b3976a85bd9ed0e41180414c2","device":"3a271480f26269e3","findings":[],"hash":"7e274f7d9e8b1d24b5cb80c85f01725e8a146028caf2175c0a7e979ebe2efa0c","nodeId":"09131e56-ef2d-4716-99f5-2062315d06fb","outcome":"completed","summary":"Added 48 tests across the two permitted files, including four fuzz tests. Coverage includes signature validation, replay protection, gas starvation, sender spoofing, and revert rollback.\n\n`forge build` and `forge test` pass: 48 passed, 0 failed. No dependencies added or implementation defects found.","treeHash":"e221f2cfba8fa46456e1088c4ff91c25320a1a54","usage":{"cachedInputTokens":157184,"inputTokens":30456,"model":"gpt-6-astra","outputTokens":15737,"runtime":"codex","turns":4,"wallClockMs":488848}},{"artifacts":[],"attempt":1,"bundleHash":"64ce3ba2a60b3ebd9790ab10d411f2cdad14833efefd68fecad9b6952a6335af","device":"3a271480f26269e3","findings":[],"hash":"d607bb738902e5f67dbc51955025a96a3ee2d23eb71e0440ecb6cb391a9ea9c6","nodeId":"f5970e7f-bd0f-4a82-9c7d-8673965a03d3","outcome":"completed","summary":"Implemented [Forwarder.sol](/root/.identitymd/work/261869d7-b36c-4622-9a10-898fe9a181ed/f5970e7f-bd0f-4a82-9c7d-8673965a03d3/src/Forwarder.sol) and [Recipient.sol](/root/.identitymd/work/261869d7-b36c-4622-9a10-898fe9a181ed/f5970e7f-bd0f-4a82-9c7d-8673965a03d3/src/Recipient.sol), including the requested protections and multicall NatSpec.\n\nValidation passed offline:\n\n- `forge build`\n- `forge test`: 29 tests passed, including 256 fuzz runs.\n\nNo dependencies, configuration changes, or deployment. Tests and build artifacts remain under `test/scratch/`.","treeHash":"25aaea2860088a90069ea0b3fdafe22bd848f8d8","usage":{"cachedInputTokens":171392,"inputTokens":37338,"model":"gpt-6-astra","outputTokens":10544,"runtime":"codex","turns":5,"wallClockMs":334776}}],"verification":[{"checks":[{"durationMs":179,"exitCode":0,"name":"build","output":"Compiling 4 files with Solc 0.8.30\nSolc 0.8.30 finished in 140.29ms\nCompiler run successful!\nwarning[block-timestamp]: usage of `block.timestamp` in a comparison may be manipulated by validators\n   ╭▸ src/Forwarder.sol:36:84\n   │\n36 │             request.from == address(0) || request.nonce != nonces[request.from] || request.deadline < block.timestamp\n   │                                                                                    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n   │\n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#block-timestamp\n\nwarning[unsafe-typecast]: typecasts that can truncate values should be checked\n   ╭▸ src/Forwarder.sol:54:50\n   │\n54 │         return success && result.length >= 32 && bytes32(result) == bytes32(uint256(1));\n   │                                                  ━━━━━━━━━━━━━━━\n   │\n   ├ note: consider disabling this lint if you're certain the cast is safe\n   │       \n   │       // casting to 'bytes32' is safe because [explain why]\n   │       // forge-lint: disable-next-line(unsafe-typecast)\n   │       \n   │       \n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#unsafe-typecast\n\n","passed":true},{"durationMs":59,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 27 tests for test/Forwarder.t.sol:ForwarderTest\n[PASS] testAppendsSignerPreservesPayloadReturnsDataAndConsumesNonceBeforeCall() (gas: 244651)\n[PASS] testChangingChainIdInvalidatesExistingSignature() (gas: 84666)\n[PASS] testDeadlineEqualToTimestampIsValid() (gas: 100708)\n[PASS] testEOAAndMissingTrustFunctionRevert() (gas: 239402)\n[PASS] testEverySignedRequestFieldIsBoundToSignature() (gas: 536494)\n[PASS] testExpiredDeadlineReverts() (gas: 52956)\n[PASS] testFutureNonceRevertsUntilPreviousNonceIsUsed() (gas: 143130)\n[PASS] testHighSMalleableSignatureReverts() (gas: 42080)\n[PASS] testInnerRevertDataBubblesAndSameSignatureCanBeRetried() (gas: 566367)\n[PASS] testInvalidSignatureVReverts() (gas: 97727)\n[PASS] testMalformedSignatureLengthsRevert() (gas: 66177)\n[PASS] testNonceIsSequentialAcrossTargetsAndIndependentPerSigner() (gas: 500324)\n[PASS] testRecipientThatTrustsAnotherForwarderReverts() (gas: 323238)\n[PASS] testReentrantReplayIsRejectedWhileOuterExecutionSucceeds() (gas: 472758)\n[PASS] testRelayedDepositCreditsSignerAndTransfersValue() (gas: 109900)\n[PASS] testRelayedIncrementCreditsSignerAndEmitsEvent() (gas: 116959)\n[PASS] testReplayReverts() (gas: 101791)\n[PASS] testRequestedGasIsForwarded() (gas: 90674)\n[PASS] testRevertingAndMalformedTrustResponsesReturnFalse() (gas: 870907)\n[PASS] testSignatureForAnotherChainReverts() (gas: 73441)\n[PASS] testSignatureForAnotherForwarderReverts() (gas: 930300)\n[PASS] testStarvingRelayerTriggersGasGuardAndLeavesRequestUsable() (gas: 1159325)\n[PASS] testTooLittleAndTooMuchValueRevertWithoutConsumingNonce() (gas: 171917)\n[PASS] testUnexpectedValueOnZeroValueRequestReverts() (gas: 54331)\n[PASS] testUnrecoverableSignatureReverts() (gas: 49820)\n[PASS] testWrongSignerReverts() (gas: 54020)\n[PASS] testZeroSignerCannotUseFailedRecovery() (gas: 32038)\nSuite result: ok. 27 passed; 0 failed; 0 skipped; finished in 4.07ms (35.99ms CPU time)\n\nRan 21 tests for test/Recipient.t.sol:RecipientTest\n[PASS] testDirectDepositWithAppendedAddressCannotSpoof() (gas: 43930)\n[PASS] testDirectDepositsAccumulatePerCaller() (gas: 83886)\n[PASS] testDirectIncrementWithAppendedAddressCannotSpoof() (gas: 36894)\n[PASS] testDirectIncrementsAreCountedPerCaller() (gas: 63353)\n[PASS] testExactlyTwentyTrustedBytesProduceEmptyMessageData() (gas: 11478)\n[PASS] testForwarderConfigurationIsPerRecipient() (gas: 276430)\n[PASS] testFuzzDirectDepositSuffixCannotSpoof(address,uint96) (runs: 256, μ: 45493, ~: 45805)\n[PASS] testFuzzDirectIncrementSuffixCannotSpoof(address,bytes) (runs: 256, μ: 37755, ~: 37750)\n[PASS] testFuzzTrustedContextUsesSuffixAndPreservesData(address,bytes) (runs: 256, μ: 13044, ~: 13036)\n[PASS] testFuzzUntrustedContextPreservesEntireData(address,bytes) (runs: 256, μ: 12293, ~: 12271)\n[PASS] testIncrementRejectsEtherAndPreservesState() (gas: 19295)\n[PASS] testMsgDataStripsExactlyOneSuffixAndPreservesSelectorAndArguments() (gas: 12783)\n[PASS] testOnlyConfiguredForwarderIsTrusted() (gas: 12084)\n[PASS] testSelfDelegatecallMulticallIsNotExposed() (gas: 18380)\n[PASS] testTrustedCalldataShorterThanTwentyBytesIsUnchanged() (gas: 83116)\n[PASS] testTrustedForwarderDepositCreditsSuffixSigner() (gas: 43953)\n[PASS] testTrustedForwarderIncrementUsesLastTwentyBytes() (gas: 40934)\n[PASS] testTrustedForwarderWithoutSuffixUsesItsOwnAddress() (gas: 68325)\n[PASS] testTwentyOneTrustedBytesPreserveOneDataByte() (gas: 11704)\n[PASS] testUntrustedMsgDataAndSenderAreUnchangedAtAllBoundaries() (gas: 96777)\n[PASS] testZeroDepositSucceedsWithoutChangingCredit() (gas: 12938)\nSuite result: ok. 21 passed; 0 failed; 0 skipped; finished in 10.69ms (54.66ms CPU time)\n\nRan 2 test suites in 11.29ms (14.76ms CPU time): 48 tests passed, 0 failed, 0 skipped (48 total tests)\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"7e274f7d9e8b1d24b5cb80c85f01725e8a146028caf2175c0a7e979ebe2efa0c","verifiedTreeHash":"e221f2cfba8fa46456e1088c4ff91c25320a1a54","verifierVersion":"0.1.0+ff982c0f"},{"checks":[{"durationMs":51,"exitCode":0,"name":"build","output":"Compiling 2 files with Solc 0.8.30\nSolc 0.8.30 finished in 15.44ms\nCompiler run successful!\nwarning[block-timestamp]: usage of `block.timestamp` in a comparison may be manipulated by validators\n   ╭▸ src/Forwarder.sol:36:84\n   │\n36 │             request.from == address(0) || request.nonce != nonces[request.from] || request.deadline < block.timestamp\n   │                                                                                    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n   │\n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#block-timestamp\n\nwarning[unsafe-typecast]: typecasts that can truncate values should be checked\n   ╭▸ src/Forwarder.sol:54:50\n   │\n54 │         return success && result.length >= 32 && bytes32(result) == bytes32(uint256(1));\n   │                                                  ━━━━━━━━━━━━━━━\n   │\n   ├ note: consider disabling this lint if you're certain the cast is safe\n   │       \n   │       // casting to 'bytes32' is safe because [explain why]\n   │       // forge-lint: disable-next-line(unsafe-typecast)\n   │       \n   │       \n   ╰ help: https://book.getfoundry.sh/reference/forge/forge-lint#unsafe-typecast\n\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":"d607bb738902e5f67dbc51955025a96a3ee2d23eb71e0440ecb6cb391a9ea9c6","verifiedTreeHash":"25aaea2860088a90069ea0b3fdafe22bd848f8d8","verifierVersion":"0.1.0+ff982c0f"}]}