# Account Abstraction

> Starknet account abstraction correctness and security guidance for validate/execute paths, nonces, signatures, and session policies.

- Skill: `cartridge-gg/account-abstraction` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add cartridge-gg/account-abstraction`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cartridge-gg/account-abstraction/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- License: Apache-2.0
- Author: cartridge-gg (https://skillmd.com/u/cartridge-gg)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cartridge-gg/account-abstraction

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# Account Abstraction

## When to Use

- Reviewing account contract validation and execution paths.
- Designing session-key policy boundaries.
- Validating nonce and signature semantics.

## When NOT to Use

- General contract authoring not involving account semantics.

## Quick Start

1. Confirm `__validate__` enforces lightweight, bounded checks.
2. Confirm `__execute__` enforces policy and selector boundaries.
3. Verify replay protections (nonce/domain separation) for all signature paths.
4. Add regression tests for each fixed session-key or policy finding.
5. Run `cairo-auditor` for final AA/security pass before merge.

## Core Focus

- `__validate__` constraints and DoS resistance.
- `__execute__` policy enforcement correctness.
- Replay protection and domain separation.
- Privileged selector and self-call protection.

## Workflow

- Main account-abstraction workflow: [default workflow](workflows/default.md)

## References

- Module index: [references index](references/README.md)