Account Abstraction (gasless, one-click)

Goal: button-press betting with no gas worries — the core UX goal (§6.2).

Status

Not started (S7–S8). Owes ADR docs/architecture/0002-aa-strategy.md.

Design

• Strategy decision (B2): ERC-4337 vs EIP-7702 vs hybrid → blocks everything below.
• Modular account standard (B8, sub-decision of B2): if 4337 (or hybrid), which module standard the smart account follows — ERC-6900 vs ERC-7579. Leaning 7579 (Nexus / Kernel v3): the winning standard for new projects, richest off-the-shelf module ecosystem (session-key validators, spend limits), and Verex only needs "swap validator + session keys", not 6900's permission graph. Bundler/paymaster infra (Alchemy Rundler + Gas Manager) is an independent layer and works with either — lock-in layer (account) follows the winning standard, swappable layer (bundler/paymaster) stays with the incumbent vendor. Input: docs/analysis/erc-6900-vs-7579-research.md.
• One-click betting — approve + fillOrder in one signature; session-key authority model.
• Auto-claim delegate (B6) — minimal delegate allowing ONLY redeemPositions; a scheduler auto-claims.
• Paymaster gasless onboarding (B4/B7) — sponsor a new wallet's first N=5 txns; spend tracker.

Open questions

• B2 — AA strategy (4337 / 7702 / hybrid) — highest-priority decision; input in docs/analysis/eip-7702-research.md.
• B8 — 7579 account pick (Nexus vs Kernel v3) — only if B2 lands on 4337/hybrid; compare session-key validator maturity, audit status, tooling.
• Paymaster spend counter: off-chain DB vs on-chain mapping.

Features

• AA strategy (S7)
  • (you) Decide 4337 / 7702 / hybrid → ADR 0002
  • Session-key authority model PoC
• Modular account standard (S7, B8)
  • (you) Confirm 7579 over 6900 → fold into ADR 0002
  • Pick 7579 account: Nexus vs Kernel v3 (session-key validator maturity, audits)
  • Session-key module PoC on the chosen account ("1h small-bet on this market, no per-tx signature")
  • Verify chosen account works with Alchemy Rundler + Gas Manager (independent layers — sanity check only)
• One-click betting (S7)
  • approve + fill in one signature
• Auto-claim delegate (S7, B6, audit-grade)
  • Delegate contract (only redeemPositions) + backend scheduler
• Gasless onboarding (S8, B4/B7)
  • Paymaster sponsors the first N txns; spend tracker; halt at N+1