Xrpl Dev

XRPL Development Skill

What this Skill is for

Use this Skill when the user asks for:

• XRPL dApp development (any language/framework)
• Scaffolding a new XRPL project
• Frontend wallet connection (Crossmark, Xaman, GemWallet)
• Account creation, funding, and management
• Transaction building, signing, and submission
• Token operations (TrustLines, issued currencies, MPTs)
• NFT operations (XLS-20 NFTokens)
• DEX interactions (offers, order books, path finding)
• AMM (Automated Market Maker) operations
• Cross-chain interoperability (Axelar bridge, XRPL EVM sidechain)
• Payment channels, escrows, and checks
• Security review of XRPL transactions and integrations

Default stack decisions (opinionated)

1. Scaffolding: create-xrp

   • For new projects, start with npx create-xrp my-app.
   • Scaffolds a Turborepo monorepo with Next.js (React) or Nuxt (Vue).
   • Pre-configured: xrpl-connect wallet connection, network switching, Tailwind CSS, transaction UI.
   • Smart contract support is experimental — skip it by default.

2. Client SDK: xrpl.js first (JavaScript/TypeScript)

   • Use xrpl for all new JS/TS client code.
   • For Python projects, use xrpl-py.
   • For Java/Kotlin, use xrpl4j.

3. Frontend: xrpl-connect first

   • Use xrpl-connect for all wallet connection and signing UX.
   • Framework-agnostic web component (<xrpl-wallet-connector>), works with React, Vue, Next.js, Nuxt, vanilla JS.
   • Built-in adapters for Xaman, Crossmark, GemWallet, WalletConnect, and Ledger.
   • Event-driven WalletManager handles connection state, session persistence, and auto-reconnect.

4. Network: testnet for development

   • Always default to testnet (wss://s.altnet.rippletest.net:51233).
   • Use devnet for experimental/amendment features.
   • Never hardcode mainnet endpoints in development code.

5. Transaction signing: local or wallet-delegated

   • For backend/scripts: sign locally, never send secrets over the network.
   • For frontend: delegate signing to the connected wallet.
   • For production backends: prefer custodial signing services or hardware wallets.

6. Account management: reserves-aware

   • Always check and communicate reserve requirements before operations.
   • Base reserve (currently 10 XRP) + owner reserve (2 XRP per owned object).
   • Warn users when operations will lock up reserves.

7. Error handling: explicit

   • Always check validated status, not just submission tesSUCCESS.
   • Handle tec* codes (claimed-but-failed) differently from tef*/tem* codes.
   • Implement retry logic for terQUEUED and tefPAST_SEQ.

Operating procedure (how to execute tasks)

1. Classify the task layer

• Scaffolding — new project setup
• Frontend/wallet layer — wallet connection, signing UX, displaying state
• Client/scripts layer — building or sending transactions, querying ledger state
• Token/asset layer — TrustLines, issued currencies, NFTs, MPTs
• DEX/AMM layer — offers, order books, AMM pools, path finding
• Interoperability layer — Axelar bridge, EVM sidechain
• Security review — cross-cutting concern

2. Pick the right building blocks

• New projects: npx create-xrp to scaffold (Next.js or Nuxt)
• Frontend: xrpl-connect (WalletManager + web component) + xrpl for state queries
• JS/TS backend/scripts: xrpl package
• Python projects: xrpl-py
• Cross-chain: Axelar GMP via XRPL Payment memos

3. Implement with XRPL-specific correctness

Always be explicit about:

• network (mainnet / testnet / devnet) + WebSocket endpoint
• account reserves (base + owner reserves) and their implications
• transaction fees (auto-filled vs explicit, fee escalation)
• sequence numbers (auto-filled vs explicit, for multi-tx workflows)
• LastLedgerSequence (always set for reliable submission)
• flags and field requirements per transaction type
• trust line limits and issuer relationships
• NFT transfer fees and broker mechanics

4. Add tests

• Unit test transaction building and serialization.
• Integration test against testnet (use faucet for funding).
• Frontend: test wallet connection and signing flows with mocked providers.

5. Deliverables expectations

When you implement changes, provide:

• exact files changed + diffs
• commands to install/build/test
• a short "risk notes" section for anything touching signing, fees, reserves, or asset transfers

Content Sources

This skill incorporates best practices from:

• The Official XRPL Documentation — the authoritative reference for protocol specifications, transaction types, and API details.
• The foundational course materials: xrpl-training-2026-january.

Progressive disclosure (read when needed)

• Client SDK patterns (xrpl.js): client-sdk.md
• Frontend & wallet integration: frontend.md
• Tokens & TrustLines: tokens.md
• NFTs (XLS-20): nfts.md
• DEX & AMM: dex-amm.md
• Payments, escrows & channels: payments.md
• Cross-chain interoperability: interoperability.md
• Security checklist: security.md
• Resources & references: resources.md
• A framework-agnostic wallet connection toolkit for the XRP Ledger xrpl-connect

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