Batched Multisig Action Explainer

WHAT IT DOES

Batched Multisig Action Explainer decodes and explains batched multisig transactions before you sign or vote. The tool takes the batched transaction calldata and breaks it down into individual actions — extracting each action's target address, function signature, parameters, and value. It identifies the number of actions in the batch, detects high-risk actions (owner changes, threshold changes, large transfers, approvals), and flags suspicious combinations like multiple high-risk actions in a single batch, large transfers combined with owner changes, or actions targeting different contracts. The tool then uses AI to generate a plain-language explanation of the batched transaction: what each individual action does, what the combined effect of the batch is, and whether the batch appears suspicious. Results include a risk level, number of actions, individual action breakdown with risk indicators, combined effect summary, flags, and a comprehensive AI-generated explanation. The tool operates entirely read-only — no transactions are sent, no signatures are required. The AI assessment is designed to help you understand exactly what is being proposed in a batch before you approve it.

HOW TO USE

Connect your EVM wallet using the "Connect" button in the header. Select the network where the multisig contract is deployed from the dropdown menu. Enter the multisig contract address. Paste the batched transaction calldata (hex string starting with 0x) from the pending transaction. Click "Explain batched actions" to begin the analysis. The tool decodes the calldata into individual actions, detects high-risk patterns, and sends the data to the AI for a plain-English batch explanation. Results appear within seconds, showing the multisig contract, chain, risk level, number of actions, individual action breakdown with risk indicators, combined effect summary, flags, and a comprehensive AI-generated explanation written in clear, conversational language.

BATCHED CALLDATA DECODING AND ACTION DETECTION

The tool uses a signature-based decoding engine to parse batched multisig transactions. It extracts the function signature from the calldata and matches it against known function signatures — addOwner (0x7bd703e8), removeOwner (0x0d5820a7), changeThreshold (0x44b1b8f9, 0x7065cb48), approve (0x095ea7b3), transfer (0xa9059cbb), transferFrom (0x23b872dd), setApprovalForAll (0xa22cb465), claim (0x2e7ba6ef), and more. For each action detected, the tool extracts the target address, function name, parameters, and value. High-risk actions are flagged based on function type — owner changes and threshold changes are High risk, token approvals and transfers are Medium risk. The tool also detects suspicious batch combinations: multiple high-risk actions in a single batch, large transfers combined with owner changes, actions targeting different contracts, and any action that doesn't match the multisig's typical activity. The AI receives all decoded actions and is prompted to explain the batched transaction in plain language — listing each individual action, describing what each one does collectively, and summarizing the overall effect of the batch. The AI is also instructed to state plainly what it cannot verify — that it decodes calldata and reads on-chain data, not the proposer's intent, off-chain context, or the legitimacy of each individual target contract.

WHAT IT CANNOT SEE

This tool cannot definitively verify the true intent of batched actions — only decodes calldata and reads on-chain data. It cannot detect off-chain coordination or malicious intent not reflected in calldata — a batch that appears legitimate could be part of a coordinated attack. The tool cannot predict whether the batch will be approved or executed — it can only analyze the proposed actions. Legitimate batched transactions may combine multiple routine operations for efficiency — batching is not necessarily suspicious. The tool cannot verify the legitimacy of each individual target contract or function call — it cannot check whether the target contracts are legitimate or the functions will behave as expected. The tool cannot detect if the multisig contract has been compromised. The tool cannot detect if the proposer is acting maliciously. The tool cannot predict the outcome of the batched execution. The tool cannot detect off-chain governance processes or social context that might make a batch more or less suspicious. The tool cannot verify that the batch is consistent with the multisig's typical activity patterns.

PLEASE NOTE

Batched Multisig Action Explainer supports EVM-compatible chains only (Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, and others). The tool is read-only and never requests wallet signatures or transaction approvals. Batch explanations are AI-generated from calldata decoding — always verify each individual action and the combined effect of the batch through the multisig contract's official interface and your wallet's transaction preview before signing. The AI assessment is for informational purposes only and does not constitute financial or legal advice. Never approve a batched transaction you do not fully understand. Batches can hide malicious actions among routine ones — always review every action in the batch before approving.