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Out of the box, the harness turns language into verified onchain execution. That is powerful, but most real workflows need more than chain state. A trading agent needs an order book. A prediction-market agent needs the market’s own API. A research agent needs price feeds, stats, news, and search. Your product’s agent needs your product’s backend. Plugins extend the harness. Like Claude connectors and the earlier ChatGPT plugin system, a plugin wraps your external APIs as tools the agent can call, with a system prompt that shapes how it uses them. The runtime loads plugins dynamically, next to the default agent, with no restart. Your tools run inside the same pipeline as everything else: every transaction they stage is simulated before anyone signs, and signing stays non-custodial. A deployed plugin combines your tools and prompt on the runtime. Aomi calls the deployed unit an App. Users select an App in the portal, CLI, and the Developer Platform. In these docs, “plugin” is the thing you write; “App” is the thing you ship.

What a plugin contains

A plugin is a small Rust crate compiled to a shared library. You declare it with one macro, dyn_aomi_app!, and one config file, aomi.toml. That is the whole contract. You write the tools; the platform handles the hard parts:
  • Non-custodial wallets. Your users keep their own keys. Your plugin never holds them.
  • Simulate first. Every transaction is simulated before anyone signs, so the agent shows the real outcome before it commits.

Example: Somm Finance

Somm Finance provides automated DeFi vaults that seek yield while managing risk. Agentic Somm helps you move idle USDC into Aave v3 on Base through a human-approved flow. Somm’s models, data, and risk framework already existed as five HTTP endpoints. The team wrapped those endpoints as tools and used the investment mandate as enforced configuration in the system prompt. They deployed the plugin as the Somm Liquidity Manager App.
The same App now serves the Somm frontend, Telegram, and Discord from one deployment. It executes vault operations and charges an App-level fee through Aomi. The runtime holds no keys. The agent builds and simulates each transaction, then sends the proposal to the mandate holder’s wallet.

Runtime Features

Your plugin contains tools and a prompt. You configure the runtime features below instead of building them. Wallets and signing. Your users’ keys never touch Aomi. Every wallet has one kernel-enforced signing mode: denied, manual, client_auto, or auto. The mode changes only through a wallet-signed permit, and everything unknown fails closed. Delegated auto-signing exists only for embedded wallets (Privy, Para) under a revocable grant; self-custody wallets sign every request on the user’s own device. The invariant your users can rely on: the agent can compose and simulate any transaction, but can only ever propose it. Account abstraction. EIP-7702 and EIP-4337 package compatible EVM calls into one operation. Your plugin does not need to manage bundler plumbing. See Account abstraction for the EVM flow. Solana bundles. Solana uses an ordered instruction bundle inside one atomic transaction. Aomi can assemble the transaction or preserve venue-supplied bytes, then route signing and submission according to the wallet policy. See Solana bundle for the complete lifecycle. Multi-threading. A parent thread can delegate focused work to a durable child. The child keeps a separate transcript, returns its result to the parent, and cannot sign or submit staged transactions on its own. Asynchronous tasks. A user intent can outlive the conversation. One-time schedules, recurring intents, and condition triggers persist as durable tasks, run with bounded retries, and resolve signing authority from the wallet’s own policy at execution time. The scheduler does not pre-grant signing authority. Fees. Set flat tool prices in <app>.pricing.toml. User payments settle in USDC through x402. Supported outcome fees settle with the signed transaction. Review revenue and service charges in Operate > Usage. Surfaces. One deployment serves the portal, the widget or headless library in your frontend, and a hosted Telegram bot. Discord and Slack are planned.

Accounts and wallets

How wallets link to an account and why keys never move.

Permission model

Per-wallet modes, the permit ceremony, and the guard layer.

Transaction pipeline

Build → simulate → sign → broadcast, with account abstraction in the sign step.

Multi-threading

Parent and child threads with separate context and controlled authority.

Asynchronous tasks

Detached, scheduled, recurring, and condition-triggered runs.

Fees

Price App tools and review revenue, platform fees, and service charges.

Multi-chain specification

What EVM and SVM support each mean, chain by chain.
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Last modified on August 24, 2026