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Calculations, aggregates, and exists expressions for derived data

Create codebase area context skills for rapid navigation. MUST BE USED for creating area context skills.Handles ONE-TIME auto-detection with Serena, template-based generation, and manual maintenance.Use when creating new area contexts or regenerating existing ones,or when user mentions "create context skill", "generate area context", "map codebase area",skill generation, codebase navigation, area mapping, or template-based skill creation.

Java 21 LTS development specialist covering Spring Boot 3.3, virtual threads, pattern matching, and enterprise patterns. Use when building enterprise applications, microservices, or Spring projects.

Executes Hostinger API operations via Python wrapper. Use when managing VPS instances, Docker Compose projects, DNS records, domains, firewalls, SSH keys, snapshots, backups, billing, hosting, or WHOIS profiles.

Comprehensive Ruby on Rails conventions, design patterns, and idiomatic code standards. Use this skill when writing any Rails code including controllers, models, services, or when making architectural decisions about code organization, naming conventions, and Rails best practices. Trigger keywords: rails conventions, design patterns, idiomatic code, best practices, code organization, naming conventions, MVC patterns, Rails architecture

Format any content as a Logseq-compatible outline using nested bullets (no markdown headers, no bold). Works in both Claude Code and Claude Desktop.

Executes SonarCloud API queries via unified Python CLI. Use when checking quality gate status, searching issues (bugs, vulnerabilities, code smells), retrieving metrics (coverage, complexity), or viewing analysis history.

Implement secure JWT (JSON Web Token) authentication in Node.js applications with access/refresh tokens and role-based access control

Coordinate multi-tool workflows with guardrails; use when asked to chain retrieval, analysis, and action steps.

Generate code to integrate Frappe with external REST APIs. Use when connecting to third-party services, payment gateways, or external data sources.

How the Rails Enterprise Dev plugin discovers and uses project skills dynamically

n8n workflow automation knowledge base. Provides n8n node information, node functionality details, workflow patterns, and configuration examples. Covers triggers, data transformation, data input/output, AI integration, covering 10 nodes. Keywords: n8n, workflow, automation, node, trigger, webhook, http request, database, ai agent.

Compile a skill entry into a provisioned agent request with strict guardrails (approval, quotas, TTL). Use when translating skills into runnable agents or when you need a controlled Skill→Agent path.

Create or update root and nested AGENTS.md files that document scoped conventions, monorepo module maps, cross-domain workflows, and (optionally) per-module feature maps (feature -> paths, entrypoints, tests, docs). Use when the user asks for AGENTS.md, nested agent instructions, or a module/feature map.

Enforces PostgreSQL best practices for Django models and migrations. This skill should be used when creating models, adding fields, or working with database migrations to ensure proper indexes on filtered fields and migration safety.

Systematic gap analysis for claimed vs actual work completion. Uses 100+ sequential thoughtsto identify assumptions, partial completions, missing components, and rationalization patterns.Validates completion claims against original plans, detects scope deviations, reveals quality gaps.Essential for self-assessment before declaring work complete. Use when: claiming completion,final reviews, quality audits, detecting rationalization patterns in own work.

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use when architecting complex backend systems or refactoring existing applications for better maintainability.

Better Auth JWT verification for Python/FastAPI backends. Use when integrating Python APIs with a Better Auth TypeScript server via JWT tokens. Covers JWKS verification, FastAPI dependencies, SQLModel/SQLAlchemy integration, and protected routes.

Build cloud-native microservices - service discovery, config server, API gateway, resilience patterns

Verify README accuracy, completeness, and audience fit by testing claims against the actual codebase. Use when: (1) asked to verify documentation before a release, (2) significant changes to APIs or setup procedures might have invalidated documentation, (3) onboarding feedback or "it doesn't work" reports suggest documentation gaps, (4) README instructions haven't been verified against current codebase state.