> ## Documentation Index > Fetch the complete documentation index at: https://aomi.dev/docs/llms.txt > Use this file to discover all available pages before exploring further. # How execution works > Follow an onchain action from build and simulation through wallet approval, broadcast, and confirmation. Signing remains non-custodial. Aomi separates simulation, review, wallet signing, broadcast, and confirmation. Use that lifecycle before executing an onchain Action. ```mermaid theme={null} flowchart LR SIM[Simulate on a fork] --> REVIEW[Review the outcome] --> SIGN[Your wallet signs] --> CAST[Broadcast] --> DONE[Confirm] ``` ## The lifecycle Before anything touches the real chain, Aomi forks the current chain state and runs your transaction on the fork. Multistep flows, like an approve and then a swap, are simulated together as one batch. If the transaction would revert, you find out here, with no gas spent. The simulation returns the actual result: the tokens you would receive, the balances that would change, and any revert reason. You read the real outcome, not an estimate. Aomi stages a wallet request and your wallet signs the exact prepared payload. Aomi never receives your private key. The backend decides whether the prepared operation is an ordinary transaction, EIP-4337 owner authorization, or another signature kind before it reaches the wallet. The signed transaction is broadcast to the chain. Aomi reports the transaction hash and waits for the confirmation. ## Driving a trade from the CLI The `aomi-transact` skill runs this lifecycle for you, but every step maps to a real command. When you want to see the moves, or run them by hand, here is the flow. The CLI is one shot per command. Each `aomi` command starts, runs, and exits. Local state remembers the active Agent session and wallet configuration. Pending Actions remain durable in the backend Agent session and `aomi tx list` fetches their current state. Tell the Agent what you want. When the trade needs a signature, Aomi creates a pending Action for the active session. ```bash theme={null} aomi chat "swap 1 ETH for USDC on Uniswap" --public-key 0xYourAddr --chain 1 ``` A chat reply does not always create an Action. The Agent may return a quote or route and ask whether to proceed. Stay in the same session and reply with a short confirmation, then inspect the Action list. Confirm what is queued before you touch simulation or signing. ```bash theme={null} aomi tx list ``` A swap that needs approval can appear as one EVM execution Action containing ordered approval and swap transactions. Run the pending EVM execution Action on a fork before you sign. For a multi-step Action such as approve then swap, simulation preserves the prepared transaction order so the swap sees the approval state. ```bash theme={null} aomi tx simulate [action-id...] ``` The result reports per step success, any revert reason, and gas used. If a step reverts, read the reason and fix the intent. Do not sign past a failed simulation. Execute only the pending Action the user reviewed. For an ordinary EVM or SVM execution Action, the CLI signs and submits with the configured local wallet. For a sign-only Action, it returns the exact signature to the backend. ```bash theme={null} aomi tx sign [action-id...] ``` For the complete command surface, flags, and environment variables, see [Commands and configuration](/docs/reference/client-cli/commands). ## Safety rules the agent follows These rules keep a trade safe whether the skill drives the CLI or you do. * **Never invent or guess credentials.** The agent passes through only a value you gave it for a specific action. It does not fabricate, derive, or echo a key back to you. * **Always simulate a multi step batch before signing.** An approve then swap, or an approve then deposit, is state dependent. Simulate the batch together with `aomi tx simulate` first. The second step reverts if you submit it alone. * **Only execute the pending Action you asked for.** The Agent uses the Action ID you named after `aomi tx list` shows its current request and state. It does not sweep the queue. * **Keep the signing RPC matched to the Action's chain.** The `--chain` flag sets Agent context. The `--rpc-url` flag sets where a local wallet submits an ordinary transaction. They are independent controls. ## Execution assertions The backend prepares the Action's execution kind. `aomi tx sign` does not select an account-abstraction provider or rewrite an ordinary transaction into a smart-account operation. | Flag | Behavior | | ----------------- | ----------------------------------------------------------------------------------------------------------------------- | | no execution flag | Execute any pending Action supported by the configured wallet. | | `--aa` | Require a backend-prepared ERC-4337 owner-authorization Action. | | `--eoa` | Reject a backend-prepared ERC-4337 owner authorization; ordinary transactions, permits, and SVM Actions remain allowed. | ```bash theme={null} aomi tx sign --aa aomi tx sign --eoa ``` `--aa` and `--eoa` are mutually exclusive assertions. `--aa-provider` and `--aa-mode` are rejected because provider, implementation, sponsorship, and broadcast policy belong to the backend-prepared operation. See [Transactions and signing](/docs/reference/client-cli/transactions-and-signing#account-abstraction). ## Why simulation comes first Simulation exposes a bad transaction before broadcast, so you can stop before signing a malformed call. Simulation also guards against drain vectors. When a recipient field in the calldata, such as `recipient`, `onBehalfOf`, `mintRecipient`, or `_to`, does not match the signer, the transaction is blocked at simulation time instead of being signed. ## Non-custodial by design At no point does Aomi take custody. It reads chain state, builds the transaction, and simulates it. Your wallet is the only thing that can sign. This holds across every supported chain. ## Next What trading on Aomi is and which chains it covers. See how protocol instructions and guards join this lifecycle.
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