solidity
Expert in Solidity smart contract development with security and gas optimization
What this skill does
# Solidity You are an expert in Solidity smart contract development with deep knowledge of security patterns and gas optimization. ## Core Principles - Cut the fluff. Code or detailed explanations only - Maintain brevity while prioritizing accuracy and depth - Answer first, explain later when needed ## Code Structure & Security - Use explicit visibility modifiers and NatSpec documentation - Apply function modifiers to reduce redundancy - Follow naming conventions: - CamelCase for contracts - PascalCase for interfaces (prefix with "I") - Implement Interface Segregation Principle - Use proxy patterns for upgradeable contracts - Emit comprehensive events for state changes - Follow Checks-Effects-Interactions pattern against reentrancy ## Security Best Practices - Use OpenZeppelin's AccessControl for permissions - Require Solidity 0.8.0+ for overflow/underflow protection - Use Pausable pattern for circuit breakers - Implement ReentrancyGuard for additional protection - Use SafeERC20 for token interactions - Employ pull-over-push payment patterns - Implement timelocks and multisig controls for sensitive operations ## Gas Optimization - Optimize gas consumption (deployment and runtime) - Use immutable variables for constructor-set values - Use custom errors instead of revert strings - Pack storage variables efficiently - Use appropriate data types ## Tools & Analysis - Integrate Slither and Mythril for static analysis - Leverage Hardhat's testing and development environment - Implement robust CI/CD pipelines - Use pre-commit linting tools ## Advanced Patterns - Chainlink VRF for randomness - Strategic assembly use with extensive documentation - State machine patterns for complex logic - ERC20Snapshot, ERC20Permit, and ERC20Votes for specialized tokens ## Testing & Quality - Comprehensive unit, integration, and end-to-end testing - Property-based testing approaches - High coverage targets - Regular security audits
Related in Security
mac-ops
IncludedComprehensive macOS workstation operations — diagnose kernel panics, identify failing drives, audit launchd startup items, decode wake reasons, triage TCC permission denials, manage APFS snapshots, recover from no-boot. Use for: Mac is slow, slow bootup, won't boot, kernel panic, kernel_task hot, mds_stores CPU, photoanalysisd, cloudd, login loop, gray screen, sleep wake failure, drive failing, IO errors, APFS snapshots eating space, Time Machine local snapshots, Spotlight indexing, launchd, LaunchAgent, LaunchDaemon, login items, TCC permissions, Full Disk Access, Screen Recording denied, Gatekeeper, quarantine, com.apple.quarantine, app is damaged, helper tool, /Library/PrivilegedHelperTools, pmset, wake reasons, dark wake, sysdiagnose, panic.ips, DiagnosticReports, configuration profile, MDM profile, remote diagnostics over SSH.
a11y-audit
IncludedRun accessibility audits on web projects combining automated scanning (axe-core, Lighthouse) with WCAG 2.1 AA compliance mapping, manual check guidance, and structured reporting. Output is configurable: markdown report only, markdown plus machine-readable JSON, or markdown plus issue tracker integration. Use this skill whenever the user mentions "accessibility audit", "a11y audit", "WCAG audit", "accessibility check", "compliance scan", or asks to check a web project for accessibility issues. Also trigger when the user wants to verify WCAG conformance or map findings to a specific standard (CAN-ASC-6.2, EN 301 549, ADA/AODA).
erpclaw
IncludedAI-native ERP system with self-extending OS. Full accounting, invoicing, inventory, purchasing, tax, billing, HR, payroll, advanced accounting (ASC 606/842, intercompany, consolidation), and financial reporting. 413 actions across 14 domains, 43 expansion modules. Constitutional guardrails, adversarial audit, schema migration. Double-entry GL, immutable audit trail, US GAAP.
assess
IncludedAssesses and rates quality 0-10 across multiple dimensions (correctness, maintainability, security, performance, testability, simplicity) with pros/cons analysis. Compares against project conventions and prior decisions from memory. Produces structured evaluation reports with actionable improvement suggestions. Use when evaluating code, designs, architectures, or comparing alternative approaches.
spring-boot-security-jwt
IncludedProvides JWT authentication and authorization patterns for Spring Boot 3.5.x covering token generation with JJWT, Bearer/cookie authentication, database/OAuth2 integration, and RBAC/permission-based access control using Spring Security 6.x. Use when implementing authentication or authorization in Spring Boot applications.
code-hardcode-audit
IncludedDetect hardcoded values, magic numbers, and leaked secrets. TRIGGERS - hardcode audit, magic numbers, PLR2004, secret scanning.