The four functions your agent was missing.

Durable execution for AI agents that hold real money. Four primitives. One nested call.

$npm i @openacid/acid

live0G Galileo · Sepolia ENS

A·C·I·D

ReceiptRegistry deployed · openacid.eth mirrors every receipt

import { saga, invariant, idempotent, receipted } from '@openacid/acid';

// kill -9 me. I won't double-spend.
const rebalance = receipted({ storage, signer },
  invariant({
    pre:  walletBalanceOK,
    post: noOrphanAllowances,
  },
  idempotent({
    key: (a) => `rebalance:${a.target}`,
    onChainAware: { chain, waitForFinality: 1 },
  },
  saga({
    steps: [
      { id: 'approve', do: (c) => approve(USDC, router, c.amount) },
      { id: 'swap',    do: (c) => router.exactInput(c.args) },
    ],
    compensations: { approve: (c) => approve(USDC, router, 0n) },
  })
)));

await rebalance({ target: 0.6 });

Atomicity

saga()

Multi-step actions commit fully or roll back via compensations.

Consistency

invariant()

Pre/post predicates enforced at action boundaries.

Isolation

idempotent()

In-flight tracking and dedup. No interleaving, no double-spend.

Durability

receipted()

Signed chained receipts in 0G Storage. Crash-recoverable.

proof · kill -9

Proof ~ not a promise

kill -9 the agent.
It restarts.
It does not double‑spend.

Every step inside receipted() is signed, persisted to 0G Storage, and mirrored to openacid.eth. On restart, the wrapper reconciles via chain query and skips anything already mined.

$ cast call openacid.eth "text(...,'receipt.latest')"

// no library install · any ENS resolver

crash-safeidempotent117 vitest · 8 forgesigned log

live demo

$ node agent.js

Not a job queue.

Not a retry library.

Not a workflow engine.

Not an observability tool.

The library you keep meaning to write

Stop losing money to duplicate transactions.