Agents, H100 weekly market, NEAR testnet

# 1. On the account that will hold the deposit, add a key for the agent.
#    It may call only these methods on Weir, and its allowance caps the gas it can burn.
near account add-key AGENT_ACCOUNT \
  grant-function-call-access --allowance '0.5 NEAR' \
  --contract-account-id weir-h100-weekly-w1.testnet \
  --function-names commit,reveal,clear,mint,merge,settle,redeem \
  autogenerate-new-keypair save-to-keychain \
  network-config testnet sign-with-keychain send

# 2. Deposit the dollars the agent may trade with (this needs your full-access key).
near contract call-function as-transaction USDC_TOKEN ft_transfer_call \
  json-args '{"receiver_id":"weir-h100-weekly-w1.testnet","amount":"100000000","msg":"AGENT_ACCOUNT"}' \
  prepaid-gas '100 Tgas' attached-deposit '1 yoctoNEAR' \
  sign-as YOUR_ACCOUNT network-config testnet sign-with-keychain send

# 3. Bound the agent with your full-access key: a guard (how far from the index, in micro-USD,
#    its prices may be) and a round lock limit (the most its commits may lock in one round).
near contract call-function as-transaction weir-h100-weekly-w1.testnet set_guard   json-args '{"guard":150000,"max_round_lock":"20000000"}'   prepaid-gas '30 Tgas' attached-deposit '1 yoctoNEAR'   sign-as AGENT_ACCOUNT network-config testnet sign-with-keychain send

// A minimal agent: one sealed LONG per round, revealed on time, round cleared after.
// Node 22+. Reads https://tryweir.com/api/status; signs with the near CLI and the key added above.
import { execFileSync } from "node:child_process";
import { createHash, randomBytes } from "node:crypto";

const SITE = "https://tryweir.com", WEIR = "weir-h100-weekly-w1.testnet", ME = "AGENT_ACCOUNT", NET = "testnet";
const call = (method, args) => execFileSync("near", ["contract", "call-function", "as-transaction", WEIR, method,
  "json-args", JSON.stringify(args), "prepaid-gas", "100 Tgas", "attached-deposit", "0 NEAR",
  "sign-as", ME, "network-config", NET, "sign-with-keychain", "send"], { encoding: "utf8" });
const sha = (s) => createHash("sha256").update(s, "utf8").digest("hex");
const open = new Map(); // "series|round" -> order, kept until revealed

for (;;) {
  const { status, params } = await (await fetch(`${SITE}/api/status?m=h100-weekly`)).json();
  for (const l of status.live) {
    const key = `${l.series}|${l.round}`;
    if (l.phase === "Commit" && !open.has(key)) {
      const o = { side: "Long", size: 8, price: 30 * params.tick, salt: randomBytes(16).toString("hex") };
      const s = o.side === "Long" ? "L" : "S";
      const hash = sha(`weir:v1|${l.series}|${l.round}|${ME}|${s}|${o.size}|${o.price}|${o.salt}`);
      const lock = String(o.size * o.price); // covers a LONG: size * price
      const seq = Number(call("commit", { series: l.series, hash, lock }).trim()); // the CLI prints the return value to stdout
      open.set(key, { ...o, seq, series: l.series, round: l.round }); // keep the salt: no salt, no reveal
    }
    if (l.phase === "Reveal" && open.has(key)) {
      const o = open.get(key);
      call("reveal", { series: o.series, round: o.round, seq: o.seq, side: o.side, size: o.size, price: o.price, salt: o.salt });
      open.delete(key);
      setTimeout(() => { try { call("clear", { series: o.series, round: o.round }); } catch {} }, (l.phase_ends_at - status.now + 5) * 1000);
    }
  }
  await new Promise((r) => setTimeout(r, 10_000));
}