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Harness
Put raw intelligence to work.
Skills, MCP servers, prompts, assistants and connectors. Every listing shows its author, version and the permissions it needs.
On the shelves21,000
- MCP servers18,849
- Skills1,282
- Assistants651
- Prompts218
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ArchitectureSpecialist assistants, also called subagents. Installed in Claude Code, Codex and the like, they take on the work their main session hands them.
- XR Interface Architectmsitarzewski 158kSpatial interaction designer and interface strategist for immersive AR/VR/XR environmentsArchitecture
- Kotlin revieweraffaan-m 275kKotlin and Android/KMP code reviewer. Reviews Kotlin code for idiomatic patterns, coroutine safety, Compose best practices, clean architecture violations, and common Android pitfalls.SonnetMobileArchitecture
- Java prowshobson· jvm-languages 40kMaster Java 21+ with modern features like virtual threads, pattern matching, and Spring Boot 3.x. Expert in the latest Java ecosystem including GraalVM, Project Loom, and cloud-native patterns.OpusBackendArchitecture
- Senior Code Revieweraddyosmani 103kSenior code reviewer that evaluates changes across five dimensions — correctness, readability, architecture, security, and performance. Use for thorough code review before merge.SecurityCodingArchitecture
- A11y architectaffaan-m 275kAccessibility Architect specializing in WCAG 2.2 compliance for Web and Native platforms.SonnetLegalArchitecture
- Network architectaffaan-m 275kDesigns enterprise or multi-site network architecture from requirements, using existing network skills for focused routing, validation, automation, and troubleshooting detail.SonnetArchitecture
- Level Designermsitarzewski 158kSpatial storytelling and flow specialist - Masters layout theory, pacing architecture, encounter design, and environmental narrative across all game enginesGamesArchitecture
- Homelab architectaffaan-m 275kDesigns home and small-lab network plans from hardware inventory, goals, and operator experience level, with safe staged changes and rollback guidance.SonnetArchitecture
- CMS Developermsitarzewski 158kDrupal and WordPress specialist for theme development, custom plugins/modules, content architecture, and code-first CMS implementationArchitecture
- C4 containerwshobson· c4-architecture 40kExpert C4 Container-level documentation specialist. Synthesizes Component-level documentation into Container-level architecture, mapping components to deployment units, documenting container interfaces as APIs, and creating container diagrams. Use when synthesizing components into deployment containers and documenting system deployment architecture.SonnetDocumentationDevOpsArchitecture
- Flutter revieweraffaan-m 275kFlutter and Dart code reviewer. Reviews Flutter code for widget best practices, state management patterns, Dart idioms, performance pitfalls, accessibility, and clean architecture violations. Library-agnostic — works with any state management solution and tooling.SonnetMobileArchitecture
- Code Exploreraffaan-m 275kDeeply analyzes existing codebase features by tracing execution paths, mapping architecture layers, and documenting dependencies to inform new development.SonnetArchitecture
- Architectaffaan-m 275kSoftware architecture specialist for system design, scalability, and technical decision-making.OpusCodingArchitecture
- Code Architectaffaan-m 275kDesigns feature architectures by analyzing existing codebase patterns and conventions, then providing implementation blueprints with concrete files, interfaces, data flow, and build order.SonnetFilesArchitecture
- Scaffolderanthropics· code-modernization 38kScaffolds one service of a reimagined system from the approved architecture and spec — project skeleton, domain model, API stubs, executable acceptance tests. Write access is scoped to its own service directory under modernized/.Architecture
- Salesforce Architectmsitarzewski 158kSolution architecture for Salesforce platform — multi-cloud design, integration patterns, governor limits, deployment strategy, and data model governance for enterprise-scale orgsCRM and salesDevOpsArchitecture
- Agentic Identity & Trust Architectmsitarzewski 158kDesigns identity, authentication, and trust verification systems for autonomous AI agents operating in multi-agent environments. Ensures agents can prove who they are, what they're authorized to do, and what they actually did.ArchitectureAgents
- GraphQL architectwshobson· api-scaffolding 40kMaster modern GraphQL with federation, performance optimization, and enterprise security. Build scalable schemas, implement advanced caching, and design real-time systems.OpusSecurityBackendArchitecture
- Offer & Lead Gen Strategistmsitarzewski 158kTop-of-funnel architect who designs irresistible offers and lead magnets that attract qualified buyers at scale. Specializes in value-equation offer construction, lead magnet typology, multi-channel lead generation, and compounding reach through customers, employees, agencies, and affiliates.Architecture
- Tracking & Measurement Specialistmsitarzewski 158kExpert in conversion tracking architecture, tag management, and attribution modeling across Google Tag Manager, GA4, Google Ads, Meta CAPI, LinkedIn Insight Tag, and server-side implementations. Ensures every conversion is counted correctly and every dollar of ad spend is measurable.Social mediaArchitecture
- Design system architectwshobson· ui-design 40kExpert design system architect specializing in design tokens, component libraries, theming infrastructure, and scalable design operations. Masters token architecture, multi-brand systems, and design-development collaboration.Same as sessionDesignMarketing and SEOArchitecture
- Code exploreranthropics· feature-dev 38kDeeply analyzes existing codebase features by tracing execution paths, mapping architecture layers, understanding patterns and abstractions, and documenting dependencies to inform new developmentSonnetArchitecture
- Senior engineeralirezarezvani 28kSenior Engineer agent for architecture decisions, code review, DevOps, and API design. Orchestrates engineering and engineering-team skills for technical implementation work. Spawn when users need system design, code quality review, CI/CD pipeline setup, or infrastructure decisions.Sonnet1 skillDevOpsBackendArchitecture
- LLM finetuning architectwshobson· llm-finetuning 40kFine-tuning strategist who owns the eval gate and method/model selection. Refuses to plan training without a baselined eval harness.OpusArchitectureAI models