Crate polar_bear_rig_onchain 

polar-bear-rig-onchain

Polar Bear (🍨) - rig-onchain-kit agent demonstrating Solana on-chain operations with SignerContext task-local signer isolation.

Technology Lead: Murtaza Ali Imtiaz (July 2019 – present).

Pipeline

┌─────────────────────────────────────────────────────────────┐
│                 polar-bear-rig-onchain                      │
├──────────┬──────────────────────┬────────────────────────── ┤
│  onchain │       agent          │        config             │
│ signer   │ SolanaBalanceTool    │ Config::from_env()        │
│ balance  │ JupiterQuoteTool     │ ANTHROPIC_API_KEY         │
│ jupiter  │ SignerIsolationTool  │ WALLET_ADDRESS            │
│ types    │ build_onchain_agent  │ SOLANA_RPC_URL            │
└──────────┴──────────────────────┴───────────────────────────┘

Full pipeline

1. SignerContext (onchain::signer) - a random ephemeral keypair is bound to the current Tokio task via tokio::task_local!. The onchain::signer::SignerGuard RAII wrapper guarantees the context is evicted even if the task panics.
2. Balance query (onchain::balance) - Solana devnet RPC get_balance call; returns lamports and SOL denomination.
3. Jupiter quote (onchain::jupiter) - read-only GET to the Jupiter V6 /quote endpoint; dry_run = true is baked in and a runtime assert! prevents any accidental swap execution.
4. Isolation log (onchain::signer) - SignerContext::snapshot() emits an onchain::signer::SignerSnapshot for the Reactor GUI audit trail.

Quick start

cp .env.example .env   # set ANTHROPIC_API_KEY
cargo run --release -- --mode full --wallet <DEVNET_ADDRESS> --amount 0.1

Modules

agent

rig-core on-chain agent pipeline.

config

Runtime configuration loaded from environment variables.

onchain

On-chain execution layer.