---
name: "openzeppelin-contract-audit-standards"
description: "Implement audited, industry-standard ERC token standards and proxy upgrade patterns."
metadata:
  author: "OpenZeppelin"
  version: "1.0.0"
  runtime_compatibility:
    - "codex"
    - "claude-code"
    - "cursor"
    - "windsurf"
triggers:
  - "use openzeppelin contracts"
  - "implement uups upgradeable proxy"
  - "setup accesscontrol roles"
permissions:
  fs_read: true
  fs_write: "workspace"
  shell_exec: false
  net_access: false
---

# OpenZeppelin Contracts Upgradability & Standards

Builds secure Web3 infrastructure with OpenZeppelin: ERC20/ERC721/ERC1155, AccessControl role-based permissions, UUPS / Transparent Upgradeable Proxies, and initialization guards.

## When to Invoke
Invoke this skill whenever you need to:
- use openzeppelin contracts
- implement uups upgradeable proxy
- setup accesscontrol roles

## Execution SOP & Rules
1. Inherit from official, audited OpenZeppelin contracts rather than rolling custom implementations.
2. Use Initializable and initializer modifier on upgradeable contracts; never use constructors.
3. Enforce role-based access control with onlyRole(ROLE) modifiers.
4. Validate storage layout compatibility before deploying upgrades to proxy contracts.

## Verification Checklist
- Run local linting, syntax validation, and type-checks before reporting completion.
- Ensure all created or modified files adhere to workspace boundaries and avoid uncommitted secrets.
- Verify tests or build commands exit cleanly with return code 0.