best-practices

Full async multi-agent development workflow: Planning → Design → Dev → Security/Tech Review loop with file-based handoffs and release-branch Git model.

12 skills

Audits code for WCAG 2.2 AA compliance (review mode) and provides design guidance for building accessible components (design mode). Covers semantic HTML, ARIA, keyboard navigation, colour contrast, focus management, and motion.

1 skill

Creates and maintains Architecture Decision Records (ADRs) in docs/decisions/ using the MADR 4.0 format. Supports creating, listing, updating, superseding, and searching ADRs.

1 skill

Designs and reviews REST, GraphQL, and gRPC APIs. Design mode produces OpenAPI specs, GraphQL schemas, or proto files. Review mode audits existing APIs for consistency, best practices, and breaking change risks.

1 skill

Guides the design of a new system or major feature from requirements to a documented architecture: C4 model diagrams, service boundaries, API contracts, data design, failure modes, and cross-cutting concerns.

1 skill

Audits an existing system's architecture for structural anti-patterns, scalability and reliability risks, and testability gaps. Produces graded findings with migration paths and a to-be architecture diagram.

1 skill

Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques

15 skills · hooks

Harness-native ECC operator layer - 71 agents, 314 skills, 98 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses

200 skills · 98 commands · 71 agents · 1 MCP server · hooks

Design fluency for frontend development. 1 skill with 24 commands (/impeccable polish, /impeccable audit, /impeccable critique, etc.) and curated anti-pattern detection.

1 skill · 4 agents · hooks

Cross-installation agent federation with zero-trust security, PII-gated data flow, and compliance-grade audit trails

3 skills · 1 command · 1 agent

5 skills + 35 modes + Material Passport pipeline. Includes v3.6.7 cross-model audit gate and v3.6.8 generator-evaluator contract.

5 skills · 16 commands · 4 agents · hooks

Ship stablecoin apps faster. Best-practice skills for USDC payments, cross-chain transfers, wallets, and smart contracts — plus Circle's MCP server for real-time SDK and documentation guidance.

20 skills · 1 MCP server