Build and optimize JQL (Jira Query Language) queries for searching issues. Use when the user needs to search Jira issues, filter by complex criteria, find specific bugs or features, or when they mention JQL, queries, or searching Jira.

jquery-4

Enforce ESLint standards by fixing violations systematically

Fix JSDoc errors and warnings from build/lint with content preservation

Debug jsgui3 client-side activation issues. Use when SSR renders but clicks don’t work, this.dom.el is null, or you see Missing context.map_Controls / activation failures.

Validate JSON data against JSON Schema specifications. Use for API validation, config file validation, or data quality checks.

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Expert guidance for Julia package development following SciML standards, Distributions.jl patterns, and Julia ecosystem best practices

Guide for creating Claude Code hooks - shell commands that execute at specific lifecycle events (SessionStart, SessionEnd, PreToolUse, PostToolUse, etc.). Use when users want to automate actions, add validation, logging, or integrate external tools into Claude Code workflows.

Guide d'installation Astro + Tailwind sur Windows. Covers Node.js setup, pnpm, project creation, common Windows issues, and troubleshooting.

Use when jUnit extensions including custom extensions, rules, and conditional test execution.

Use when jUnit fundamentals including annotations, assertions, and test lifecycle for Java testing.

Maven integration testing with Failsafe plugin, IT naming conventions, and profile configuration

Use when jUnit parameterized tests with various value sources and test factories.

- [Execution Enforcement](#execution-enforcement)

Best practices for using just command runner and task automation in development workflows.

This skill provides patterns for setting up just (command runner) in projects. Use PROACTIVELY when creating build systems, setting up new repos, or when the user asks about just/justfile configuration. Covers both simple single-project repos and monorepos with hierarchical justfile modules.

Just command runner for saving and running project-specific commands

Five-level maturity progression - assessment criteria, upgrade paths, YAGNI enforcement

Ralph research agent for discovering global youth justice cases and advocacy campaigns

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kafka-integration-testing

MCP server integration for Kafka operations with Claude Desktop and SpecWeave. Use when configuring Kafka MCP servers, connecting Claude to Kafka topics, or choosing between MCP implementations.

kafka-schema-management

kafka

Expert agent for Kaggle API authentication, dataset management, and running Kaggle notebooks on Texas Tech HPCC. Specializes in connecting Jupyter notebooks to Kaggle API and submitting to code competitions. Always checks VPN connection first before HPCC operations.

Kani is a bit-precise model checker for Rust that proves properties about code rather than just testing examples. Unlike tests that check specific inputs, Kani exhaustively verifies all possible input

Expert in Kanidm modern identity management system specializing in user/group management, OAuth2/OIDC, LDAP, RADIUS, SSH key management, WebAuthn, and MFA. Deep expertise in secure authentication flows, credential policies, access control, and platform integrations. Use when implementing identity management, SSO, authentication systems, or securing access to infrastructure.

Creates Karibu unit tests for Vaadin views.

Validates KCL Crossplane compositions with comprehensive checks including formatting, syntax validation, and rendering tests. Automatically activates when working with KCL files, Crossplane compositions, or before commits touching infrastructure/base/crossplane/configuration/. Prevents CI failures and catches critical bugs like the mutation pattern.

This skill should be used when developing, debugging, or fixing KDE Plasma 6 widgets (plasmoids). Triggers on QML widget issues, compactRepresentation not showing, system tray integration, Kirigami.Icon usage, plasmoidviewer testing, and Plasma 6 widget development. Covers common issues like emoji not rendering, widget not appearing in panel, and proper imports for Plasma 6.

Research current online documentation and information. Use when working with external libraries, frameworks, APIs, services, version-specific issues, trends, or any topic where LLM training cutoff may impact accuracy. Guides when to use websearch, codesearch, or webfetch.

Associative memory for reflection and skillful action

Keyboard accessibility, focus management, and shortcuts.

Multi-tenant Keycloak authentication theming with realm-specific design systems

Cross-platform secure credential storage using system keychains

Builds content APIs with KeystoneJS, the Node.js headless CMS with GraphQL. Use when creating admin UIs and APIs with automatic CRUD operations, relationships, access control, and TypeScript support.

Use when users need help with kube-hetzner configuration, debugging, or questions - acts as an intelligent assistant with live repo access

Use when defining stopping rules for projects, avoiding sunk cost fallacy, setting objective exit criteria, deciding whether to continue/pivot/kill initiatives, or when users mention kill criteria, exit ramps, stopping rules, go/no-go decisions, project termination, sunk costs, or need disciplined decision-making about when to quit.

Expert KillBill administrator for managing billing, subscriptions, invoices, and overdue states. Provides ready-to-use commands via Traefik DNS for tenant management, catalog uploads, test clock manipulation, and overdue testing workflows.

Create a Kind cluster in Docker-in-Docker environment

AWS Kiro specification patterns and synchronization. Use when working with Kiro IDE, syncing requirements.md/design.md/tasks.md files, or configuring steering files for AI agent context.

kiro-project-scaffolder

Transform ideas into comprehensive specifications, design documents, and actionable implementation plans.

Build ClaudeKit Marketing components - skills, agents, commands, workflows. Use when creating new automation, extending marketing capabilities, or understanding kit structure. Includes templates, examples, and init scripts.

Expert guidance for creating, building, and using Claude Code subagents and the Task tool. Use when working with subagents, setting up agent configurations, understanding how agents work, or using the Task tool to launch specialized agents.

Deep analysis debugging mode for complex issues. Activates methodical investigation protocol with evidence gathering, hypothesis testing, and rigorous verification. Use when standard troubleshooting fails or when issues require systematic root cause analysis.

Delegates knowledge bank lookups to Explore subagents with reflections-first strategy that learns from past mistakes. Checks /reflections/ directory before documentation to extract documented failures to avoid and proven approaches to apply. Automatically triggers when user mentions services ([project-a], [project-b], [project-c], Claude Code), requests investigations, or queries past lessons. Returns structured, actionable insights achieving 69-94% context reduction. (project, gitignored)

4-layer knowledge capture system for development sessions. Use when user says /mem (quick capture), /distill (extract patterns), /td (post-task retrospective with Before/After context), /improve (work on pending items), or /commit (atomic commits via TDG). Manages docs/learnings/, docs/knowledge-base/, and docs/retrospective/ directories.

Retrieves implementation knowledge, code examples, and documentation references. Use to inform technical decision-making when the user requires specific library usage, framework patterns, or syntax details. Trigger on requests to 'search docs', 'find code examples', or 'check implementation details'.