StrategyAdvanced#Authority#Settlement#Transaction Safety
Intent-Based Trading
I
Definition
A design in which a user signs constraints for a desired outcome and a protocol or solver attempts settlement. A signed intent is an authorization with a specific trust and replay boundary, not a guarantee of price, route, MEV protection, or successful settlement.
Source reviewed
- EIP-712: Typed Structured Data Hashing and Signing opens in a new tab
Supports: EIP-712 specifies structured typed-data signing and explicitly notes that replay and front-running protection remain application-specific.
- OWASP: LLM06 Excessive Agency opens in a new tab
Supports: OWASP documents damaging actions when agent-based systems give broad authority to unexpected or manipulated model output, supporting explicit review of signed constraints.
Concept Diagram
Key Takeaways
1
An intent signs specific outcome constraints; it does not guarantee a price, route, MEV protection, or settlement.
2
Inspect the signing domain, chain, contract, tokens, amounts, recipient, nonce, expiry, allowances, cancellation, partial fills, fees, and settlement path.
3
EIP-712 supports structured signing, but replay and front-running protection remain application-specific.
4
A changed quote, contract, chain, fee, expiry, or route policy requires a new approval before settlement.
Practical Example
A user reviews an intent that names the chain, verifying contract, sell token and amount, minimum receive amount, receiver, nonce, expiry, fee, and cancellation rule. The interface shows that the authorization can be relayed and whether it permits partial fills. The user signs only after the exact fields match their decision.
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Related Terms
AI
Execution LayerA controlled component that prepares, validates, signs, submits, and monitors a state-changing operation. In an agent workflow, it must treat model output as an untrusted proposal, not as authority to move funds or call a contract.
Blockchain
Gasless TradingA sponsored or relayed transaction flow in which someone other than the sender initially pays network gas. It may let a user avoid holding the native token, but it does not remove fees, signature risk, approvals, price or slippage risk, or the possibility of failed execution.
Blockchain
DEX (Decentralized Exchange)An exchange design that uses blockchain transactions, smart contracts, or an onchain order book to match or execute trades. Custody, operator roles, access controls, fees, execution, and protections vary by protocol and jurisdiction.
Blockchain
Layer 2 (L2)A protocol layer that executes transactions outside an L1 while using that L1 for some combination of data availability, proofs, dispute resolution, or settlement. Fees, finality, bridges, and withdrawal paths depend on the specific L2 design.
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