89 skills and 38 specialized agents that enforce proven engineering practices for AI-assisted development. TDD, systematic debugging, parallel code review, and 10-gate development cycles — as a Claude Code plugin marketplace.
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Deep codebase exploration agent for architecture understanding, pattern discovery, and comprehensive code analysis. Use for 'how' and 'why' questions — not for 'where' searches (use built-in Explore for those).
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Review Slicer: Adaptive classification engine that evaluates semantic cohesion to decide whether slicing improves review quality. Sits between Mithril pre-analysis and reviewer dispatch. Classification-only — does NOT read source code.
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Senior Backend Engineer specialized in Go for high-demand financial systems. Handles API development, microservices, databases, message queues, and business logic implementation.
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Senior Backend Engineer specialized in TypeScript/Node.js for scalable systems. Handles API development with Express/Fastify/NestJS, databases with Prisma/Drizzle, and type-safe architecture.
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Senior BFF (Backend for Frontend) Engineer specialized in Next.js API Routes with Clean Architecture, DDD, and Hexagonal patterns. Builds type-safe API layers that aggregate and transform data for frontend consumption.
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Foundation Review: Reviews code quality, architecture, design patterns, algorithmic flow, and maintainability. Runs in parallel with other reviewers at Gate 8.
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Reviews correct usage of Lerian lib-commons non-observability packages (lifecycle, tenancy, http, idempotency, security, database, messaging, outbox-repo side), identifies reinvented-wheel opportunities, and enforces version consistency. Runs in parallel with other reviewers.
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Dead Code Review: identifies code that became orphaned, unreachable, or unnecessary as a consequence of changes. Walks three concentric rings: target files, first-derivative dependents, and transitive ripple effect. Runs in parallel with other reviewers at Gate 8.
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Senior DevOps Engineer specialized in cloud infrastructure for financial services. Handles containerization, IaC, and local development environments.
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Senior Frontend Engineer specialized in React/Next.js for financial dashboards and enterprise applications. Expert in App Router, Server Components, accessibility, performance optimization, modern React patterns, and dual-mode UI library support (design-system vs vanilla).
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Specialist Helm Chart Engineer by Lerian Studio. Creates and maintains Helm charts following Lerian conventions with strict enforcement of chart structure, naming, security, and operational patterns.
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Correctness Review: reviews domain correctness, business rules, edge cases, and requirements. Uses mental execution to trace code paths. Runs in parallel with other reviewers at Gate 8.
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Nil/Null Safety Review: traces nil/null pointer risks from git diff changes through the codebase. Identifies missing guards, unsafe dereferences, panic paths, and API response inconsistency in Go and TypeScript. Runs in parallel with other reviewers at Gate 8.
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Conditional Gate 8 specialist for lib-observability, tracing, metrics, logging, runtime recovery, panic safety, redaction, constants, and SafeGo implications.
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Performance Reviewer covering code-level hotspots (allocations, goroutine leaks, N+1 queries, event loop blocking) and runtime/infra misconfigurations (GOMAXPROCS, GC tuning, CFS throttling, connection pool sizing). Runs in parallel with other reviewers.
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Expert Agent Quality Analyst evaluating AI agent executions against best practices, identifying prompt deficiencies, calculating quality scores, and generating precise improvement suggestions.
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Senior Frontend QA Analyst for React/Next.js. Supports 5 modes — unit (default), accessibility, visual, e2e, performance. Dispatched with mode parameter; loads mode-specific file from qa-frontend-modes/.
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Senior QA Analyst for financial systems. Supports 6 testing modes — unit (default), fuzz, property, integration, chaos, goroutine-leak. Dispatched by orchestrator with mode parameter; loads mode-specific file from qa-modes/.
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Safety Review: Reviews vulnerabilities, authentication, input validation, and OWASP risks. Runs in parallel with other reviewers at Gate 8.
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Senior Site Reliability Engineer specialized in VALIDATING observability implementations for high-availability financial systems. Does not implement observability code — validates that developers implemented it correctly following Ring Standards.
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Conditional Gate 8 specialist for lib-streaming, business events, outbox, event producers, broker publishing, CloudEvents, and event manifests/catalogs.
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Conditional Gate 8 specialist for lib-systemplane, runtime config, hot-reload knobs, admin config surfaces, tenant-scoped settings, and systemplane imports/config.
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Reviews correct usage of lib-commons/multitenancy patterns, tenantId propagation, database isolation, and tenant-scoped resources. Runs in parallel with other reviewers.
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Test Quality Review: Reviews test coverage, edge cases, test independence, assertion quality, and test anti-patterns. Runs in parallel with other reviewers at Gate 8.