Types
Type checking and type generation
graphql-inspector-validate
by TheBushidoCollective
Use when validating GraphQL operations/documents against a schema, checking query depth, complexity, or fragment usage.
absinthe-schema
by TheBushidoCollective
Use when designing GraphQL schemas with Absinthe. Covers type definitions, interfaces, unions, enums, and schema organization patterns.
lightweight-design-analysis
by NTCoding
"This skill analyzes code for design quality improvements across 8 dimensions: Naming, Object Calisthenics, Coupling & Cohesion, Immutability, Domain Integrity, Type System, Simplicity, and Performance. Ensures rigorous, evidence-based analysis by: (1) Understanding code flow first via implementation-analysis protocol, (2) Systematically evaluating each dimension with specific criteria, (3) Providing actionable findings with file:line references. Triggers when users request: code analysis, design review, refactoring opportunities, code quality assessment, architecture evaluation."
software-design-principles
by NTCoding
"Object-oriented design principles including object calisthenics, dependency inversion, fail-fast error handling, feature envy detection, and intention-revealing naming. Triggers on: writing new classes or functions, refactoring, code review, 'clean up', method longer than 10 lines, feature envy, primitive obsession, deep nesting."
tactical-ddd
by NTCoding
"Design, refactor, analyze, and review code by applying the principles and patterns of tactical domain-driven design. Triggers on: domain modeling, aggregate design, 'entity', 'value object', 'repository', 'bounded context', 'domain event', 'domain service', code touching domain/ directories, rich domain model discussions."
writing-tests
by NTCoding
"Principles for writing effective, maintainable tests. Covers naming conventions, assertion best practices, and comprehensive edge case checklists. Based on BugMagnet by Gojko Adzic. Triggers on: writing any test, 'add tests', test review, test naming, assertion choices, edge case coverage, 'what should I test', test structure decisions."
acsets-relational-thinking
by plurigrid
ACSets (Attributed C-Sets) for categorical database design and DPO rewriting
mcp-deepwiki
by aahl
Skills for accessing and searching docs in DeepWiki/GitHub’s public code repositories can help users understand open-source project source codes, and users can also ask questions directly about the code docs.
security-review
by mhylle
Comprehensive security audit for code changes. Use this skill when implementing authentication, authorization, user input handling, API endpoints, secrets/credentials, payment features, or file uploads. Provides security checklists, vulnerability patterns, and remediation guidance. Integrates with implement-phase as a security quality gate.
continuous-learning
by mhylle
Pattern extraction framework for learning from sessions. This skill captures valuable patterns discovered during work sessions including error resolutions, user corrections, workarounds, debugging techniques, and project-specific patterns. Triggers on Stop hook, end of session, "save learnings", "extract patterns", or when explicitly asked to capture knowledge from the current session. Outputs learned skills to ~/.claude/skills/learned/.
constructionism
by SimHacker
Educational philosophy — learn by building inspectable things
browser-cli
by Mic92
Control Firefox browser from the command line. Use for web automation, scraping, testing, or any browser interaction tasks.
fal-workflow
by fal-ai-community
Generate production-ready fal.ai workflow JSON files. Use when user requests "create workflow", "chain models", "multi-step generation", "image to video pipeline", or complex AI generation pipelines.
business-model-canvas
by melodic-software
Business model design using Osterwalder's Business Model Canvas and Lean Canvas. Creates 9-block canvases with structured analysis for business model innovation and startup validation.
data-modeling
by melodic-software
Data modeling with Entity-Relationship Diagrams (ERDs), data dictionaries, and conceptual/logical/physical models. Documents data structures, relationships, and attributes.
nonlinear-solvers
by HeshamFS
Select and configure nonlinear solvers for f(x)=0 or min F(x). Use for Newton methods, quasi-Newton (BFGS, L-BFGS), Broyden, Anderson acceleration, diagnosing convergence issues, choosing line search vs trust region, and analyzing Jacobian quality.
fleet-inventory
by RHEcosystemAppEng
Query and display Red Hat Lightspeed managed system inventory. Use this skill for information-gathering requests about the fleet, registered systems, or inventory queries. This skill focuses on discovery and listing only - for remediation actions, transition to the sre-agents:remediator agent (invoke the sre-agents:remediator agent). When to use this skill: - "Show the managed fleet" - "List all systems registered in Lightspeed" - "What systems are affected by CVE-X?" - "How many RHEL 8 systems do we have?" - "Show me production systems" When NOT to use this skill (use sre-agents:remediator agent instead): - "Remediate CVE-X on these systems" - "Create a playbook for..." - "Patch system Y" This skill orchestrates MCP tools from lightspeed-mcp to provide comprehensive fleet visibility and system inventory management.
vm-delete
by RHEcosystemAppEng
Permanently delete virtual machines and their associated resources from OpenShift Virtualization. Use this skill when users request: - "Delete VM [name]" - "Remove virtual machine [name]" - "Destroy VM [name]" - "Clean up VM [name]" This skill handles permanent VM deletion with strict safety confirmations and typed verification. NOT for power management (use vm-lifecycle-manager to stop VMs).
cve-impact
by RHEcosystemAppEng
CRITICAL: This skill must be used for ALL CVE discovery and listing queries. DO NOT use raw MCP tools like get_cves directly. Use this skill when users request: - Listing critical/high-severity CVEs: "show me critical vulnerabilities", "what are the most critical CVEs", "list all high-severity vulnerabilities" - CVE discovery: "what vulnerabilities affect my account", "show me all CVEs", "what are my security risks" - CVE impact analysis for specific CVEs: "what's the impact of CVE-X?", "analyze CVE-Y" - Risk assessment: "which CVEs are most urgent?", "prioritize vulnerabilities" - Understanding affected systems for a CVE - Comparing CVE severity levels - CVE discovery and prioritization (information gathering) DO NOT use this skill when users request remediation actions like: - "Create a remediation playbook" (use sre-agents:remediator agent) - "Patch CVE-X on system Y" (use sre-agents:remediator agent) - "Remediate these CVEs" (use sre-agents:remediator agent) This skill orchestrates MCP tools (get_cves, get_cve, get_cve_systems) to provide comprehensive CVE analysis with Red Hat Lightspeed context. When users ask for remediation after seeing the analysis, invoke the sre-agents:remediator agent. IMPORTANT: ALWAYS use this skill instead of calling get_cves or other vulnerability MCP tools directly.
mcp-builder
by MooseGoose0701
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
mcp-lightspeed-validator
by RHEcosystemAppEng
This skill should be used when the user asks to "validate Lightspeed MCP", "check if Lightspeed is configured", "verify Lightspeed connection", "test Lightspeed MCP server", or when other skills need to verify lightspeed-mcp availability before executing operations.
apollo-server-patterns
by TheBushidoCollective
Use when building GraphQL APIs with Apollo Server requiring resolvers, data sources, schema design, and federation.
parameterization
by uw-ssec
Master declarative parameter systems with Param for type-safe configuration. Use this skill when building parameterized classes with automatic validation, creating reactive dependencies with @param.depends, implementing watchers for side effects, auto-generating UIs from parameters, or organizing application configuration with hierarchical parameter structures.
lumen-dashboards
by uw-ssec
Master declarative, no-code data dashboards with Lumen YAML specifications. Use this skill when building standard data exploration dashboards, connecting multiple data sources (files, databases, APIs), creating interactive filters and cross-filtering, designing responsive layouts with indicators and charts, or enabling rapid dashboard prototyping without writing code.