You are integrating the **Ryze offline quote SDK** (Rust binding) into this repository so it can compute Ryze AMM **swap quotes** locally — no HTTP call, no RPC, no network at all. Study the repo first and match its conventions (module layout, config handling, error types, logging, test framework). If you are instead running in an empty directory, create a minimal standalone binary crate (`cargo init --bin` — `cargo new` refuses a pre-existing directory) whose only purpose is the verification script defined at the end — the acceptance gate is identical either way. ## What the SDK is The Ryze quote SDK is a precompiled native library (`libryzesdk`) plus a thin Rust binding. It reproduces the exact quote math of the on-chain Ryze AMM (an oracle-anchored weighted-pool DEX on Base): same integers, same rounding, same errors. You hand it a snapshot of a pool's state; it returns the quote synchronously, in microseconds, with zero I/O. This replaces quoting through Ryze's hosted Router API on the hot path — same numbers, none of the latency. It is distributed as a platform tarball: `ryze-sdk-rust--.tar.gz` (darwin-arm64, linux-amd64, …). Obtain the tarball matching your deploy target from the Ryze team. Throughout this prompt `$RYZE_SDK_DIST` means the absolute path of the UNPACKED distribution folder — read it from the environment; never hardcode it (single exception: the literal `path` in Cargo.toml, as documented above). ## Distribution layout & wiring ```text $RYZE_SDK_DIST/ Cargo.toml # package "ryze-sdk", lib name "ryze_sdk", edition 2021 src/lib.rs # the binding: typed structs + libloading, fully documented lib/libryzesdk.* # the closed-source native quote engine (.dylib/.so/.dll) examples/quote.rs # smoke example (cargo run --example quote) ``` **Wiring.** Add a path dependency. Cargo path deps must be literal paths, so substitute the actual value of `$RYZE_SDK_DIST` when you edit Cargo.toml (this is the one place an absolute path is acceptable): ```toml [dependencies] ryze-sdk = { path = "/absolute/path/to/ryze-sdk-rust--" } serde_json = "1" # you need Value for the fixture / wbrConfig pass-through ``` - Construct the engine with `RyzeSdk::new()` — it finds `libryzesdk` inside the crate's own `lib/` folder. `RYZE_SDK_LIB=/abs/path/to/libryzesdk.` overrides, and `RyzeSdk::from_library_path(..)` is the programmatic equivalent. - `RyzeSdk` is cheap to clone and safe to share; calls are **synchronous**. - Errors are `ryze_sdk::RyzeSdkError` (thiserror). Engine rejections surface as `RyzeSdkError::Native { operation, message }` — `message` is the engine's text. - Prefer building the pool from the fixture JSON with `serde_json::from_value` instead of hand-writing struct literals (`WeightedPool` has a flattened `extra` map you'd otherwise have to fill with `BTreeMap::new()`). ## The API you are integrating ```rust use ryze_sdk::{RyzeSdk, SwapRequest, SwapResponse, WeightedPool, TokenPrice}; let sdk = RyzeSdk::new()?; // loads the native engine once let resp: SwapResponse = sdk.quote_swap(&req)?; // sync pub struct SwapRequest { pub pool: WeightedPool, pub token_in: String, // token address; must be one of pool assets pub token_out: String, pub amount_in: Option, // REQUIRED when is_exact_in — tokenIn base units pub amount_out: Option, // REQUIRED when !is_exact_in — tokenOut base units pub is_exact_in: bool, pub num_hops: Option, // total hops of the route; Some(1) for direct pub is_intent_swap: Option, // price with discounted intent fee rates pub fee_multiplier_wad: Option, // per-account fee discount (wad) pub token_prices: Option>, // REQUIRED for SmartShield pools pub wbr_config: Option, // REQUIRED for SmartShield pools; opaque } pub struct SwapResponse { pub amount_in: String, // exact-out mode: the answer pub amount_out: String, // exact-in mode: the answer pub pool_address: String, // lowercase pub path: Vec, // [token_in, token_out], lowercase pub fee_details: FeeDetails, // swap_fee/taker_fee/wbf_fee/slippage_fee in tokenIn; } // wbr_fee (weight-breaking REWARD) in tokenOut // FeeDetails components are FeeAsset { token: String, amount: String } ``` All structs serialize to the SDK's camelCase JSON via serde. `WeightedPool`, `PoolParameters`, `WeightedPoolAsset` etc. are documented in the distribution's `src/lib.rs`; the fixture below is a valid `pool`/`tokenPrices`/`wbrConfig` triple — deserialize it with `serde_json::from_value` rather than hand-writing literals. ## Non-negotiable semantics - Every amount, balance, weight, fee, and price is a **base-10 integer string** in base units. Never let a float touch any of these values — not in parsing, not in display math inside the quote path. - "Wad" fields are 18-decimal fixed point: 1e18 = 1.0 (= 100% for rates/weights). - `pool` is a point-in-time snapshot. In production hydrate it from the Ryze API (`GET {RYZE_API_URL}/pools` — mainnet `https://mainnet.api.ryze.pro/api`, testnet `https://sepolia.api.ryze.pro/api`) or your own indexer, and re-quote when state changes. The SDK is deterministic: stale input means stale quote. The verification script below uses the embedded fixture INSTEAD of any network fetch. - `pool.assets` order is canonical — preserve it in every array you build. - SmartShield pools (`smartShieldEnabled: true` — the fixture pool is one) price against the oracle. For them BOTH `tokenPrices` AND `wbrConfig` are REQUIRED and travel together: omitting `tokenPrices` fails with `WeightedPoolMathError("Token price not found")`; supplying prices but omitting `wbrConfig` fails with `WeightBreakingRewardError("Config not loaded")`. Pass `wbrConfig` through VERBATIM as one opaque JSON object, exactly as the Ryze API returns it — never interpret, rename, filter, or re-derive its fields. - `tokenPrices` are USD per WHOLE token in wad (1e18 = $1.00) — e.g. the fixture prices USDC at $0.9997 and WETH at $1662.50. - Responses echo all addresses in **lowercase**. Compare addresses case-insensitively everywhere. - Engine errors are terse Solidity-style strings (`InvalidSlippage()`, `WeightedPoolMathError("...")`). Treat them as opaque: assert on them in tests, never branch on them in production logic. - **Exact-in vs exact-out** is one flag: `isExactIn` decides which of `amountIn`/`amountOut` you provide; the engine returns the other. - **numHops** is the total hop count of the enclosing route (fees derate for multi-hop routes). A direct pool swap is `1`. For an N-hop route your router quotes each hop separately with `numHops: N`, feeding each hop's output into the next. - The weight-breaking reward (`wbrFee`) is denominated in the OUTPUT token and is paid on top of `amountOut` on-chain — an aggregator comparing venues should rank by `amountOut + wbrFee.amount` when the reward token equals tokenOut. ## Deliverable 1 — the integration module Expose one narrow, typed function shaped for a router/aggregator integration — for example `quoteRyzeSwap(pool, tokenIn, tokenOut, amountIn, opts)` returning the output amount plus the fee breakdown, and its exact-out twin — where `opts` carries the pass-through inputs (`numHops`, `isIntentSwap`, `feeMultiplierWad`, `tokenPrices`, `wbrConfig`; the last two are required for SmartShield pools). Internally it must do nothing but validate inputs, assemble the SDK request, call the SDK, and map the response into your codebase's own types. Do NOT post-process the numbers: no rounding, no fee re-derivation, no float conversion — the SDK's integers are the on-chain truth. Example names above are illustrative — adapt them to this language's and this repo's conventions (snake_case in Rust, exported PascalCase in Go, camelCase in TypeScript). ## Deliverable 2 — standalone verification script (the acceptance gate) Create a cargo example `examples/verify_ryze_swap.rs` in the consuming crate (repo mode) or `src/main.rs` of a fresh `cargo new` binary (standalone mode); run with `cargo run`. The script must be fully self-contained: it embeds the fixture below verbatim, calls the SDK through YOUR integration module (not around it), checks every assertion in the table, prints one `PASS ` / `FAIL expected= got=` line per assertion (a table row that bundles several fields may emit one line per field), and exits 0 only if every assertion passed. For the negative case: match on `Err(RyzeSdkError::Native { message, .. })` and check `message`. Golden values below were produced by this exact SDK build from this exact fixture — they are deterministic. An off-by-one is a real failure; investigate your request construction before suspecting the goldens. ### Fixture (embed verbatim — tokens are USDC, 6 decimals, and WETH, 18 decimals) ```json { "pool": { "address": "0x0000000000000000000000000000000000001001", "totalSupplyLP": "1000000000000000000000", "parameters": { "swapFeeWad": "1000000000000000", "takerFeeWad": "500000000000000", "smartShieldEnabled": true, "smartShieldParams": { "thresholdWeightDiffWad": "10000000000000000", "minOracleWeightWad": "150000000000000000" }, "intentSwapFeeWad": "400000000000000", "intentTakerFeeWad": "200000000000000" }, "assets": [ { "tokenAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "balance": "1000000000000", "weight": "500000000000000000", "decimals": 6, "liability": "0", "custody": "0", "externalLiquidityRatio": "2000000000000000000", "liquidityBands": [ { "thresholdWad": "1000000000000000000000", "ratioWad": "2000000000000000000", "minSlippageWad": "100000000000000" }, { "thresholdWad": "100000000000000000000000", "ratioWad": "1500000000000000000", "minSlippageWad": "200000000000000" }, { "thresholdWad": "1000000000000000000000000", "ratioWad": "1200000000000000000", "minSlippageWad": "400000000000000" } ] }, { "tokenAddress": "0x4200000000000000000000000000000000000006", "balance": "500000000000000000000", "weight": "500000000000000000", "decimals": 18, "liability": "0", "custody": "0", "externalLiquidityRatio": "2000000000000000000", "liquidityBands": [ { "thresholdWad": "1000000000000000000000", "ratioWad": "2000000000000000000", "minSlippageWad": "100000000000000" }, { "thresholdWad": "100000000000000000000000", "ratioWad": "1500000000000000000", "minSlippageWad": "200000000000000" }, { "thresholdWad": "1000000000000000000000000", "ratioWad": "1200000000000000000", "minSlippageWad": "400000000000000" } ] } ] }, "tokenPrices": [ { "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "priceWad": "999700000000000000" }, { "token": "0x4200000000000000000000000000000000000006", "priceWad": "1662500000000000000000" } ], "wbrConfig": { "wad": "1000000000000000000", "maxWbfWad": "990000000000000000", "maxExpArgWad": "20000000000000000000", "maxFeeBps": "10000", "maxSkewPenaltyWad": "40000000000000000", "maxWbfRateBps": "400", "maxWeightWad": "1000000000000000000", "weightThresholdWad": "550000000000000000", "weightThresholdLambdaWad": "600000000000000000", "weightThresholdLogWad": "800000000000000000", "weightThresholdSigmaWad": "550000000000000000", "weightMultiplierLogWad": "10000000000000000000", "weightHalfWad": "500000000000000000", "bQuoteAdjustmentWad": "0", "bOverflowCap": "1000000000000000000000000000000", "bSAnchorS": [ "250000000000000000000", "1000000000000000000000", "10000000000000000000000", "100000000000000000000000", "500000000000000000000000", "1000000000000000000000000", "2500000000000000000000000", "5000000000000000000000000" ], "bSAnchorBpsWad": [ "0", "2000000000000000000", "3000000000000000000", "6000000000000000000", "11000000000000000000", "15000000000000000000", "25000000000000000000", "45000000000000000000" ], "bSNumAnchors": "8", "fPowMultiplier": "5", "fPowExponentWad": "2500000000000000000", "fLogExponentMultiplier": "10", "fLogOverflowDivisor": "10", "smoothstepCoeff1": "3000000000000000000", "smoothstepCoeff2": "2000000000000000000", "wrrDivisor": "2", "wrrMaxBps": "200", "wrrWeightMaxWad": "850000000000000000", "basisPointsDivisor": "10000", "bpsToWadMultiplier": "100000000000000" } } ``` ### Assertions | # | Call | Expected (assert EXACTLY) | |---|---|---| | 1 | exact-in: `tokenIn`=USDC, `tokenOut`=WETH, `amountIn`="1000000000", `isExactIn`=true, `numHops`=1, with fixture `tokenPrices`+`wbrConfig` | `amountOut` = "599970135642316143" | | 2 | same response | `feeDetails`: swapFee.amount="1000000", takerFee.amount="500000", wbfFee.amount="199956", slippageFee.amount="550367" (all in USDC); wbrFee.amount="0" with wbrFee.token = WETH (lowercase) | | 3 | same response | `path` = [USDC, WETH] both lowercase | | 4 | exact-out: same pair, `amountOut`="599970135642316143", `isExactIn`=false, `numHops`=1, prices+wbrConfig | `amountIn` = "999999042" (round-trips to ~the 1000 USDC of #1) | | 5 | NEGATIVE — repeat #1 but omit `tokenPrices` entirely | the call FAILS and the error text contains `Token price not found` | ## Hard rules - No network calls anywhere in the quote path or the verification script. - No floats in amount handling; no silent re-rounding of SDK outputs. - Do not modify, move, or rename anything inside `$RYZE_SDK_DIST`. - Do not reimplement or "simplify" the quote math from observed outputs — the SDK is the only source of Ryze numbers in this codebase. - Keep the wbrConfig object opaque wherever it appears. ## Acceptance checklist (verify each before declaring done) - [ ] SDK wired via `$RYZE_SDK_DIST` (only Cargo.toml may contain the literal SDK path) - [ ] Integration module exposes the typed function(s) described above, in this repo's own conventions - [ ] Verification script exists, runs offline, prints one PASS/FAIL line per assertion, and exits 0 with every assertion passing - [ ] All amounts handled as integer strings end-to-end - [ ] Exact-in and exact-out both work through the public function(s) you exposed - [ ] The negative test asserts the failure, i.e. a successful quote there is a FAIL - [ ] You actually RAN the verification script and pasted its output in your summary