DeepBook Skill

DeepBook is Sui's native central limit order book (CLOB) DEX. It provides fully on-chain order book functionality with limit orders, market orders, and governance-driven fee parameters.

When to Use

• User asks about DeepBook, on-chain order book, CLOB on Sui
• User wants to place limit orders or market orders on-chain
• User asks about integrating with DeepBook v2 or v3
• User needs to create pools, manage balance managers, or swap tokens via order book
• User asks about DEEP token staking, governance proposals, or fee structures

Key Concepts

• Pool<Base, Quote>: The central order book for a trading pair
• BalanceManager: Holds user funds (base, quote, DEEP) and manages trade authorization
• TradeProof: Authorization token for trading operations (from owner, TradeCap, or DepositCap)
• Order types: no_restriction (0), immediate_or_cancel (1), fill_or_kill (2), post_only (3)
• Self-matching options: self_matching_allowed (0), cancel_taker (1), cancel_maker (2)
• DEEP token: Used for fees on whitelisted pools and governance staking

Package IDs

Package	ID	Version
DeepBook v3	0x246cbd7d87b1ce5ac9c5112e225be6367380c58be0282179f793c87fde37ffb4	1
DEEP Token	0xdeeb7a4662eec9f2f3def03fb937a663dddaa2e215b8078a284d026b7946c270	-
DeepBook v2 (legacy)	0xdee9	-

Source Files

Decompiled source at: packages/mainnet_most_used/0x24/6cbd7d87b1ce5ac9c5112e225be6367380c58be0282179f793c87fde37ffb4/decompiled_modules/

Key modules: pool.move, balance_manager.move, order.move, order_info.move, book.move, trade_params.move, registry.move, vault.move, deep_price.move, governance.move, fill.move, history.move, order_query.move, constants.move

Key Modules

Module	Purpose
pool	Main entry point: create pools, place/cancel orders, swaps, staking, governance
balance_manager	Manage user funds, deposit/withdraw, trade authorization via caps
order	Individual order representation and accessors
order_info	Detailed order execution info including fills
order_query	Paginated order book queries
book	Internal order book data structure (bids/asks)
trade_params	Fee parameters (taker/maker fees, stake required)
vault	Holds actual token balances for pools
registry	Global pool registry and admin operations
governance	On-chain governance for fee proposals
deep_price	DEEP token pricing for fee conversion
fill	Individual fill event during order matching
history	Per-epoch volume and fee statistics
constants	Protocol constants (order types, statuses, fees)

Common Patterns

Simple Token Swap (No BalanceManager)

let (remaining_base, received_quote, remaining_deep) = pool::swap_exact_base_for_quote<SUI, USDC>(
    &mut pool, base_coin, deep_coin, min_quote_out, &clock, ctx
);

Place a Limit Order

let balance_manager = balance_manager::new(ctx);
balance_manager::deposit<SUI>(&mut balance_manager, sui_coin, ctx);
balance_manager::deposit<DEEP>(&mut balance_manager, deep_coin, ctx);
let proof = balance_manager::generate_proof_as_owner(&mut balance_manager, ctx);
let order_info = pool::place_limit_order<SUI, USDC>(
    &mut pool, &mut balance_manager, &proof,
    1,       // client_order_id
    0,       // order_type: no_restriction
    0,       // self_matching: allowed
    1_000_000_000, // price
    1_000_000_000, // quantity
    false,   // is_bid (sell)
    true,    // pay_with_deep
    18446744073709551615, // never expire
    &clock, ctx
);

Key Constants

• Pool creation fee: 500 DEEP
• Float scaling: 1e9 (all prices/fees use 9-decimal fixed-point)
• DEEP unit: 1e6 (6 decimals)
• Max fills per order: 100
• Max open orders per manager: 100

Related Skills

• sui-framework -- Core Coin, Balance, Clock types used by DeepBook
• cetus / turbos -- Alternative DEX protocols
• pyth -- Oracle prices referenced by some DeepBook integrations