Execution protocol

This is the only skill on the desk that ends with a request to Hyperliquid's /exchange endpoint, and only the Execution Trader uses it. The API mechanics live in hyperliquid-orders and hyperliquid-positions; this skill is the discipline around them.

Inputs

• The proposal file /workspace/trading-desk/proposals/<id>.md with a Risk Manager PASS and exact ticket fields.
• The user's approval line, by id, in chat, after the ticket was shown, inside the ticket's expiry.
• The desk computer configured per hyperliquid-setup: HYPERLIQUID_NETWORK, HYPERLIQUID_ACCOUNT_ADDRESS, and the API wallet key available to scripts from the environment (never printed).

Pre-send checklist

Run every item and write the result under ## execution before sending. Any failure: do not send, name the item, hand back to the Desk Lead.

1. Ticket integrity and gate. Id, PASS and approval refer to the same immutable ticket revision: action, account, network, market, side, size, entry, stop, take-profit, leverage, bounds and expiry. Append revisions; never overwrite the approved text. Any economic change needs a new suffixed ticket id, Risk PASS and user approval; the old approval cannot transfer. Confirm the native out-of-band approval gate covers this send path, including SDKs, scripts and HTTP. If coverage is unverified, do not send, even with chat approval or a written standing scope.
2. Network. HYPERLIQUID_NETWORK equals the ticket's network. Mainnet is never assumed.
3. Account and wallet. HYPERLIQUID_ACCOUNT_ADDRESS equals the ticket's account. Query userRole for the public API wallet address on this network: require role: agent and data.user equal to the ticket's account. Check its current approval and expiry with extraAgents for that account. An unsigned account read succeeding proves neither signing authority nor wallet scope. If the desk has never sent from this wallet on this network, rehearse through an approved testnet ticket first, not on mainnet.
4. Price still valid. Fresh mid from allMids is within the ticket's slippage tolerance of the ticket price. For a stop or take-profit ticket, the trigger price is on the correct side of the current mark.
5. Formatting. Asset index from live meta; price rounded to at most 5 significant figures and at most 6 - szDecimals decimals for perps (8 - szDecimals for spot); size rounded down to szDecimals; notional at least 10 USD; leverage on the account for that market already equals the ticket's leverage (set it first with a separate approved action if not).
6. cloid, nonce and expiry. Generate a fresh 16-byte client order id (0x + 32 hex chars), write it to the proposal file, and put it on the order. One cloid per order, never reused. Record the actual nonce chosen when constructing the signed request, its public API wallet signer and network before dispatch; a nearby send timestamp is not a substitute for the signed nonce. Set expiresAfter on the send, no later than the ticket's expiry and normally a minute out (hyperliquid-advanced), and write that deadline beside the cloid and nonce. The cloid identifies the order; the deadline closes its future acceptance window. Expiry does not cancel an order accepted earlier, so recovery still requires reconciliation.
7. One action. Entry plus its stop and take-profit go in one order action with grouping: normalTpsl (children sized to the entry, placed when it fills). Protection for an existing position is a standalone reduce-only trigger. Anything else in the ticket that is a different action type (leverage change, cancel) is a separate, separately approved step.
8. Capacity and recovery. Before any action that adds risk or removes protection, no unreconciled send may remain, regardless of its age; complete any restart/feed-gap recovery in hyperliquid-websocket. Immediately before new risk, have Risk re-read account state, open orders and capacity and recheck the daily stop, limits and all reservations from desk-risk-limits. Reserve the approved revision once. Incomplete historical recovery may still permit a reduce-only protective stop or exit when Risk verifies the current position and orders and the ticket can only reduce risk; all other approval, native-gate and single-send checks still apply, and unresolved reservations remain held. A failed applicable gate blocks the send; changed economic fields need a new PASS and approval.

Send

• Send exactly once. Do not wrap the send in a retry loop. Set a finite timeout (10-15 seconds is plenty).
• Capture the raw response and the send timestamp to the millisecond.
• Interpret statuses per hyperliquid-orders: resting (oid), filled (totalSz, avgPx, oid), waitingForTrigger, waitingForFill, or an error string. A top-level status: err is an action-level rejection: nothing was placed.

Unknown results

A timeout, connection reset, HTTP 5xx, or a client exception after the request left the machine is an unknown result. Treat it as possibly executed:

1. Do not resend.
2. Query orderStatus for the cloid; check openOrders and userFills for it; check clearinghouseState for a position change.
3. If found: proceed to reconciliation as if the response had arrived, and record that the original response was lost.
4. If not found: a negative check is not proof. The original may still be in flight and can land after any number of clean reads. Do not let two quiet checks authorise a replacement.
5. Wait for the send's expiresAfter deadline to pass, then reconcile once more. The original can no longer be accepted after that deadline, but it may have been accepted beforehand and left orders or fills. Never assume elapsed time without a signed deadline proves the outcome.
6. If the send carried no expiry, an exact recovery ticket may request a noop using the original exact signed nonce, the same API wallet signer and the same network. It requires Risk PASS, user approval by id and native-gate coverage; the Execution Trader sends it once. A fresh higher nonce does not invalidate the original. Confirm that the noop was accepted, then reconcile the original and account; the original could have won the race. A nonce-reuse rejection does not confirm noop acceptance or identify what consumed the nonce. If the original nonce is missing or the noop result is unconfirmed, keep the unknown send reserved, pause new risk and escalate to the Desk Lead and user. Do not improvise another signed action.
7. Report the acceptance deadline or confirmed nonce invalidation and the reconciled outcome separately. Only after the original cannot be accepted later and its existing exposure is reconciled can a replacement proceed on a fresh ticket, Risk PASS and approval by id.

Reconciliation

Immediately after the response, and again when fills arrive:

• orderStatus by cloid or oid: the exchange's view of the order.
• openOrders / frontendOpenOrders: resting orders including trigger children.
• userFills (or userFillsByTime for the window): fill price, size, fee, crossed (taker or maker), timestamp.
• clearinghouseState: position size, entry, leverage, liquidation price, margin used.

Write the reconciled facts under ## reconciliation, post the execution report on the floor (format in agents/execution-trader.md), and DM the Trade Reviewer with the id and the report.

Update the risk reservation with those same facts. A resting remainder or unknown send retains its allocation; a cancellation response alone does not free it. Filled exposure moves into the position calculation, and only reconciled unused capacity is released. Record the change so a restarted desk can reconstruct it from proposals and the exchange.

Cancels, modifies, leverage, closes

Each is its own ticket (suffix -B, -C...) with its own PASS and approval by id, unless the user has written a standing approval into desk.md for that exact class of action on that network.

• Cancel: by cloid where you have it, else by oid from openOrders. Confirm removal from openOrders.
• Modify: Hyperliquid's modify/batchModify cancels a resting limit order and places the replacement in one action (new oid, fresh cloid); the replacement must itself rest (Alo, or a non-executable Gtc). Stops and take-profits cannot be modified: place the new trigger order, confirm it is resting, then cancel the old one, so the position is never unprotected.
• Leverage or margin mode: updateLeverage before the entry, on a flat market or with the user aware of the effect on an existing position. Confirm from clearinghouseState.
• Close: reduce-only IOC at a slippage-bounded price for the position size read live seconds before the send. Then read clearinghouseState again: if the position is gone, cancel the orphaned protective orders; if it only shrank (a partial fill on the close), the remainder is still open and still needs its stop, so resize protection before cancelling anything. Report which case it was.
• Dead-man's switch: scheduleCancel only when the user asks for it, with the time written in the report; remember it cancels all of the account's open orders when it fires.

Rehearsal rule

Any action type the desk has not performed before (first TP/SL bracket, first modify, first close, first isolated-margin trade) is rehearsed on testnet with the same ticket format before it is done on mainnet. Record the rehearsal in the journal.

Report

Post the block from agents/execution-trader.md on the floor: sent, response, reconciled, fees/funding, next. Keep the raw response in the proposal file, not in chat.

Never

• Never send without a PASS and approval by id for this exact ticket.
• Never send from a main-wallet key or with a key pasted in chat.
• Never withdraw, deposit, bridge, transfer, send tokens, approve builder fees or touch vaults and sub-accounts.
• Never resend on an unknown result while the original could still arrive; only an expired original and a fresh approval by id permit a replacement. Never cancel-all as a reflex.
• Never let a routine, a watch or a schedule send. They alert and draft; only the Execution Trader sends, and only on an approved ticket.
• Never treat a clean orderStatus read as proof that an unknown result did not execute; only an expired original proves that.