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NickCrew

NickCrew

450 Skills published on GitHub.

multi-perspective-analysis

Adopt multiple expert personas sequentially for complex problem analysis from diverse perspectives. Single-agent only — do NOT spawn sub-agents.

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multi-specialist-review

User-triggered multi-agent code review. Spawns 3-5 parallel specialist sub-agents that read actual source files, runs mechanical citation verification, and synthesizes a single review artifact. Use for PR-level changes, multi-commit ranges, or security-sensitive work where single-turn review is insufficient.

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openapi-specification

OpenAPI 3.x specification design, schema patterns, and validation for REST API contracts. Use when creating or maintaining API specifications, generating documentation, or validating API contracts.

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owasp-top-10

OWASP Top 10 security vulnerabilities with detection and remediation patterns. Use when conducting security audits, implementing secure coding practices, or reviewing code for common security vulnerabilities.

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playwright-cli

Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.

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product-manager

Use this skill when writing product requirements documents, prioritizing features, creating user stories, defining acceptance criteria, or setting product metrics. Trigger phrases: ''write a PRD for'', ''prioritize this feature backlog'', ''write user stories for'', ''help me define acceptance criteria'', ''what metrics should we track for''. Not for writing code, designing UI mockups, or conducting user research interviews.

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product-strategy

Product vision, roadmap development, and go-to-market execution with structured prioritization frameworks. Use when evaluating features, planning product direction, or assessing market fit.

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prompt-engineering

Optimize prompts for LLMs and AI systems with structured techniques, evaluation patterns, and synthetic test data generation. Use when building AI features, improving agent performance, or crafting system prompts.

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proofreader

Use this skill when reviewing written content for grammar, spelling, punctuation, style consistency, and tone—before publishing, submitting, or sending. Trigger phrases: ''proofread this'', ''check my writing'', ''review this for errors'', ''edit this email/report/essay''. Do NOT use when structural rewrites or content changes are needed—proofreading fixes surface errors, not substantive problems.

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python-performance-optimization

Python performance optimization patterns using profiling, algorithmic improvements, and acceleration techniques. Use when optimizing slow Python code, reducing memory usage, or improving application throughput and latency.

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python-testing-patterns

Python testing patterns and best practices using pytest, mocking, and property-based testing. Use when writing unit tests, integration tests, or implementing test-driven development in Python projects.

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quality-audit

Meta-skill for auditing and validating skill quality. Use when reviewing skills for consistency, completeness, accuracy, and adherence to standards. Provides structured rubrics, scoring frameworks, and actionable recommendations.

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react-performance-optimization

React performance optimization patterns using memoization, code splitting, and efficient rendering strategies. Use when optimizing slow React applications, reducing bundle size, or improving user experience with large datasets.

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reasoning-controls

Use when adjusting reasoning depth, budgets, or metrics visibility - provides guidance for selecting and applying reasoning controls safely.

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receiving-code-review

Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation

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reference-documentation

Create exhaustive technical references, API documentation, and searchable reference materials. Use when building API docs, configuration references, or complete technical specifications.

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regex-master

Use this skill when building, explaining, or debugging regular expressions for pattern matching, validation, or text extraction. Trigger phrases: ''write a regex'', ''match this pattern'', ''validate this format'', ''extract from text''. Not for natural language parsing or full grammar parsing (use a parser instead).

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release-analysis

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release-prep

Use when preparing a production release or release candidate - provides a checklist-driven workflow for validation, versioning, build optimization, documentation updates, and deployment readiness.

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repo-cleanup

Use when a repository needs cleanup of dead code, build artifacts, unused dependencies, outdated docs, or stale tests - provides safe cleanup workflows, validation steps, and reporting templates for code, deps, docs, tests, and sprint archives.

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requesting-code-review

Use when completing tasks, implementing major features, or before merging to verify work meets requirements - dispatches code-reviewer subagent to review implementation against plan or requirements before proceeding

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requirements-discovery

Stakeholder interviews, PRD structure, and scope definition for software requirements elicitation. Use when gathering requirements, defining project scope, or structuring product requirement documents.

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research-methodology

Structured research using sophisticated query design, source vetting, and synthesis techniques. Use when conducting competitive analysis, market scans, historical investigations, or trend research.

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root-cause-tracing

Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior

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secure-coding-practices

Secure coding practices and defensive programming patterns for building security-first applications. Use when implementing authentication, handling user input, managing sensitive data, or conducting secure code reviews.

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security-testing-patterns

Security testing patterns including SAST, DAST, penetration testing, and vulnerability assessment techniques. Use when implementing security testing pipelines, conducting security audits, or validating application security controls.

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session-management

Use when loading, saving, or reflecting on session context - provides structured workflows for session lifecycle management and reflection outputs.

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sharing-skills

Use when you've developed a broadly useful skill and want to contribute it upstream via pull request - guides process of branching, committing, pushing, and creating PR to contribute skills back to upstream repository

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socratic-questioning

Guide discovery through questioning techniques and pattern recognition for Clean Code, GoF design patterns, and architectural decisions. Use when coaching developers, facilitating design discussions, or helping teams discover solutions.

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storyteller

Use this skill when writing fiction, narrative nonfiction, brand stories, or any content where emotional engagement and narrative arc matter more than pure information delivery. Trigger phrases: ''write a short story'', ''tell my brand''s origin story'', ''write a narrative about'', ''create a character''. Do NOT use for purely informational content, technical writing, or persuasive copy without a narrative component.

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subagent-driven-development

Use when executing implementation plans with independent tasks in the current session - dispatches fresh subagent for each task with code review between tasks, enabling fast iteration with quality gates

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super-saiyan

Maximum visual excellence for any UI platform. Use when building user interfaces, styling components, or polishing visual elements.

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system-design

Use when designing system architecture, APIs, components, or data models - provides a structured design workflow with validation and documentation outputs.

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systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) that ensures understanding before attempting solutions

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task-orchestration

Use when coordinating complex tasks with orchestration, delegation, or parallel workstreams - provides structured workflows for orchestrate:brainstorm, orchestrate:spawn, and orchestrate:task.

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template-skill-enhanced

Enhanced skill template with progressive disclosure, bundled resources, and quality rubrics. Use when creating new skills that need structured tiers, reference files, validation rubrics, or advanced bundling patterns beyond the basic template.

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template-skill

A template for creating new skills. Use when initializing a new skill to ensure proper structure and metadata.

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terms-of-service

Use this skill when you need to draft Terms of Service, a Privacy Policy, or an End-User License Agreement (EULA) for a web application, SaaS product, or mobile app. Produces comprehensive, plain-English legal documents that cover user rights, data practices, liability limits, and dispute resolution. Not a substitute for a licensed attorney; have a lawyer review before publishing for a production product.

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terraform-best-practices

Terraform infrastructure-as-code best practices for scalable and maintainable cloud infrastructure. Use when writing Terraform modules, managing infrastructure state, or implementing infrastructure automation at scale.

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test-generation

Use when generating tests for new or existing code to improve coverage - provides a structured workflow for analyzing code, creating tests, and validating coverage goals.

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test-review

Review test quality and audit test coverage for any module. This skill should be used when reviewing existing tests, auditing test gaps, writing new tests, or when asked to assess test health. It pipelines testing standards into the audit workflow to produce a prioritized gap report. The output is a report, not code — do not write test implementations until the report is reviewed.

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testing-anti-patterns

Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies

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testing-skills-with-subagents

Use when creating or editing skills, before deployment, to verify they work under pressure and resist rationalization - applies RED-GREEN-REFACTOR cycle to process documentation by running baseline without skill, writing to address failures, iterating to close loopholes

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threat-modeling-techniques

Threat modeling methodologies using STRIDE, attack trees, and risk assessment for proactive security analysis. Use when designing secure systems, conducting security reviews, or identifying potential attack vectors in applications.

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token-efficiency

Compressed communication using symbols and abbreviations. Use when context is limited or brevity is needed.

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tool-selection

Use when selecting between MCP tools based on task complexity and requirements - provides a structured selection workflow and decision rationale.

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tutorial-design

Design and write hands-on tutorials with progressive disclosure, exercises, and troubleshooting sections. Use when creating learning content, workshops, or step-by-step guides.

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typescript-advanced-patterns

Advanced TypeScript patterns for type-safe, maintainable code using sophisticated type system features. Use when building type-safe APIs, implementing complex domain models, or leveraging TypeScript's advanced type capabilities.

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ui-design-aesthetics

Generates high-quality, non-generic UI designs with a focus on performance, progressive disclosure, and distinctive aesthetics.

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ui-ux-review-suite

User-triggered orchestrator that runs a comprehensive UI/UX review by coaching the user through four sibling skills as distinct lenses against one shared target, then synthesizing their findings into a single prioritized report. Composes user-journey-mapping (flow/funnel lens), ui-design-aesthetics (visual critique lens), interaction-design (state-coverage lens), and ux-review (usability-heuristics + WCAG lens). Resolves the review target once at suite start — the app/URL, the screens or flows under review, the viewports, and the user persona/goal — so every lens inherits the same scope and captured screenshots. Coaches rather than auto-runs — at each step it presents the next lens with its reframing prompt and an approval gate; the user invokes the sibling and confirms before moving on. Because the lenses overlap (ux-review already touches interaction and a11y), the suite scopes each lens to its distinct concern so the synthesis does not double-count. Produces one authored synthesis report — deduped findings grouped by severity and lens — not a navigation shell. Trigger on "run a full UX review," "comprehensive UI/UX review," "review this screen across all lenses," "do a complete design review," or when the user names two-or-more UI/UX lenses to coordinate. Not for running a single lens in isolation (invoke it directly), not for generating new UI (the generative siblings are reframed as critique here), and not for bypassing approval gates (this skill coaches, never autoruns).

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