[New Protocol Integration]: Integrate Radiant Lending Protocol (Arbitrum)

[Lexiie]

🏷️ Protocol Name

Radiant Capital – Lending Protocol (V2, Aave V3–compatible)

🔧 Protocol Type

Lending/Borrowing

📝 Protocol Description

Integrate Radiant’s lending markets into Vibekit via a new onchain-actions plugin.
This integration enables agents to fetch market data, read user positions, and build lending/borrowing transactions compatible with Radiant’s Aave V3–style contracts.

The plugin is fully implemented (with unit tests) and ready to be contributed via PR.

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Core Contract Addresses (Arbitrum)

Component Address

PoolAddressProvider 0x454a8daf74b24037ee2fa073ce1be9277ed6160a
LendingPool (Pool) 0xE23B4AE3624fB6f7cDEF29bC8EAD912f1Ede6886
ProtocolDataProvider 0x596B0cc4c5094507C50b579a662FE7e7b094A2cC
Price Oracle 0xC0cE5De939aaD880b0bdDcf9aB5750a53EDa454b

All contract interactions use Aave V3-compatible ABIs implemented by Radiant V2.

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Requested Integrations

1. View Functions

fetchMarkets()

Fetch all Radiant reserves from DataProvider

Return: symbol, address, decimals, LTV, liquidation threshold, supply APR, borrow APR, liquidity, price

getUserPosition(address)

Return collateral, debt, health factor

Include per-asset supply/borrow amounts

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2. Transaction Builders

All builders return { to, data } for safe execution by agents.

supply(asset, amount)

withdraw(asset, amount)

borrow(asset, amount, rateMode)

repay(asset, amount, rateMode)

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Deliverables

New plugin:
typescript/onchain-actions-plugins/radiant/

Full implementation of:

market fetcher

user position retriever

tx builders

Unit tests (Vitest) for:

calldata encoding/decoding

view function logic

README with usage examples

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Status

Implementation completed locally.
Ready to open PR once this issue is registered.

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📚 Protocol Documentation

https://docs.radiant.capital/

🌐 Supported Networks

arbitrum one

🎯 Capabilities

For lending protocols:

• Supply/withdraw assets
• Borrow/repay assets
• Health factor monitoring
• Market data retrieval (reserves, APRs, LTV, liquidity)
• User position reporting (collateral, debt, per-asset balances)
• Transaction builder support for all lending operations

📎 Additional Information

Radiant V2 is actively maintained and operates using Aave V3–compatible smart contracts.
All interactions follow well-established and audited Aave V3 interfaces.

Known considerations:

• Protocol uses a custom DataProvider but remains ABI-compatible with Aave V3.
• No special permissions required for read/write operations.
• Onchain interactions executed via standard Pool contract calls (supply, withdraw, borrow, repay).

Implementation Required

A new onchain-actions plugin for Radiant should be added under:
typescript/onchain-actions-plugins/radiant/

Required components:

1. fetchMarkets()

   • Reads reserve list and metadata from ProtocolDataProvider
   • Returns asset info with LTV, liquidation threshold, APRs, liquidity, and pricing

2. getUserPosition(address)

   • Retrieves collateral, debt, health factor
   • Returns structured per-asset supply/borrow data

3. Transaction builders

   • supply(asset, amount)
   • withdraw(asset, amount)
   • borrow(asset, amount, rateMode)
   • repay(asset, amount, rateMode)
   • Each returns to + encoded calldata for execution

4. Unit tests

   • Market fetch logic
   • User position parsing
   • Calldata encoding/decoding for tx builders

5. README

   • Description, usage examples, action definitions

✅ Pre-submission Checklist

• I have searched existing issues to avoid duplicates
• I have integrated the protocol using the Ember Plugin system
• I have verified this protocol is actively maintained
• I will wait for the Vibekit team to approve this issue before continuing to implementation