Develop raw book ideas into structured nonfiction book concepts. Use when the user wants to develop a book idea, has brainstorm documents to refine into a book concept, wants to articulate a book's thesis/promise/reader/transformation, or needs to prepare a book concept for validation and market research. Nonfiction only. Produces a Book Concept Document with all elements needed for downstream skills (idea-validator, market-research, book-architect).

Expert children's book illustrator guide with 2024-2025 best practices, focusing on age-appropriate styles, color theory, character design, and visual storytelling for kids books that captivate young readers.

Assess commercial viability of book concepts for Amazon KDP self-publishing. Use when the user has a Book Concept Document and wants to understand market demand, competition, pricing, and positioning before committing to write. Produces a Market Research Report with viability scorecard and Go/No-Go recommendation. Works standalone (commercial analysis only) or after idea-validator (integrated assessment). Nonfiction only.

Diagnose book marketing copy problems and generate platform-optimized blurbs, descriptions, taglines, and query pitches. Use when marketing copy feels weak, when descriptions aren't converting, or when starting marketing from scratch.

This skill generates comprehensive metrics reports for intelligent textbooks built with MkDocs Material, analyzing chapters, concepts, glossary terms, FAQs, quiz questions, diagrams, equations, MicroSims, word counts, and links. Use this skill when working with an intelligent textbook project that needs quantitative analysis of its content, typically after significant content development or for project status reporting. The skill creates two markdown files - book-metrics.md with overall statistics and chapter-metrics.md with per-chapter breakdowns - in the docs/learning-graph/ directory.

Generate comprehensive, actionable book reports with strategic insights, immediate action items, overlooked insights, and personalized recommendations.

Plan, orchestrate, and validate deep research for nonfiction books. Use when an author has completed book architecture and needs to fill research gaps before outlining chapters. Triggers include requests to plan research, generate research prompts, validate research quality, or prepare for drafting. This skill does everything around deep research—planning, prompting, validating, synthesizing—but the actual research execution happens externally via Claude and Gemini deep research. Requires upstream documents from book-architect (Research Gaps Document, Master Architecture Document, Section Blueprints) and book-ideation (Book Concept Document).

Plan, structure, and scaffold large educational books using cognitive load management and pedagogical best practices. Use when planning multi-part educational works requiring narrative continuity, progressive complexity, and hands-on exercises.

Converts .txt book files into leverageable Claude Code skills. Use when transforming books, articles, or written expertise into structured skills with frameworks, workflows, and reference material.

book-writer

Run editing passes over completed sections for voice consistency, timeline verification, contradiction flagging, and citation coverage

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Guidance for using Claude Code component architecture and choosing between agents, skills, commands, and hooks. Helps decide which component type fits a use case, understand delegation and isolation, debug cross-component issues, and design cohesive plugin architectures. Use when choosing component types, designing plugins with multiple components, debugging delegation failures, asking about component interaction patterns, or creating Box Factory-compliant components.

Comprehensive Braiins OS skill covering API, feeds, and documentation

Comprehensive Braiins Toolbox skill - batch management tool for Bitcoin mining operations with GUI and CLI for firmware, system, miner, tuner, and cooling management

A CLI for externalizing your working memory - capture ideas, projects, features, todos, and questions without the overhead of complex tools.

Use when requirements specify risky technical assumptions, unfamiliar APIs, or complex integrations before implementing full features - creates sequential POC plans with parallel research validation, design documentation, and risk mitigation for incremental confidence building

Generate multiple viable solution options after research is complete, before converging on a single approach. Use when you need to explore the solution space, ask clarifying questions, and produce 3-5 distinct options to consider.

Sync brainstorming session discoveries to project memory (CONTEXT.md, memories)

You are to operate as an expert full-stack dotnet angular principle developer, software architect, and technical analyst to analyze all file changes between branches, perform comprehensive impact anal

Expert full-stack analyst for branch diff analysis, impact assessment, and spec synchronization.

This skill should be used when the user requests brand analysis, brand guidelines creation, brand audits, or establishing brand identity and consistency standards. It provides comprehensive frameworks for analyzing brand elements and creating actionable brand guidelines based on requirements.

Provides Jungian brand archetype frameworks, the 12 archetypes with profiles, the 70/30 primary/secondary rule, archetype combinations, and selection templates. Auto-activates during brand archetype selection, emotional positioning, and brand personality work. Use when discussing brand archetypes, Jungian archetypes, 12 archetypes, Hero, Outlaw, Magician, Creator, Lover, Jester, Everyman, Caregiver, Ruler, Sage, Explorer, Innocent, 70/30 rule, Mark-Pearson, or archetype combinations.

Evaluate and strengthen Northcote Curio brand style briefs by identifying

Generate and maintain brand style guides - colors, fonts, imagery, voice/tone, responsive specs. Use when documenting brand identity or creating style guide pages.

Comprehensive brand identity system including brand strategy, visual identity (colors, typography, logo direction), messaging architecture (taglines, boilerplates), and tone of voice guidelines with before/after examples and implementation roadmap.

Generate Builder Methods hand-drawn line art illustrations (icons, scenes, periphery) with a single accent color (Coral/Teal/Indigo/Amber). Use for blog headers, thumbnails, course graphics, social posts, and on-brand UI/tech metaphors.

Negotiate and structure brand partnerships and co-marketing deals

Create a Brand Storytelling Pack (brand narrative, founder/origin story, five-second moment, channel scripts, building-in-public plan, Q&A bank). Use for brand story, founder story, origin story, narrative, pitch story, storytelling, and brand narrative. Category: Marketing.

This skill should be used when translating research insights into actionable brand strategy frameworks. Use this when developing positioning statements, messaging architectures, audience strategies, or voice guidelines based on completed research. This skill provides strategic synthesis workflows, validation frameworks, and strategy document templates for evidence-based brand strategy development.

Provides brand values frameworks, differentiation tests, discovery questions, and behavior mapping templates. Auto-activates during values definition, core values curation, and values testing. Use when discussing brand values, core values, Lencioni's four categories, opposite test, antivalue, fire someone test, operationalizing values, Brene Brown values process, values discovery, or permission-to-play values.

Sourdough and artisan bread expert covering fermentation, scoring, and professional baking techniques

This skill should be used when analyzing market breadth charts, specifically the S&P 500 Breadth Index (200-Day MA based) and the US Stock Market Uptrend Stock Ratio charts. Use this skill when the user provides breadth chart images for analysis, requests market breadth assessment, positioning strategy recommendations, or wants to understand medium-term strategic and short-term tactical market outlook based on breadth indicators. All analysis and output are conducted in English.

Detect and warn about breaking API/schema changes before implementation. Auto-trigger when modifying API routes, database schemas, or public interfaces. Validates changes against api-strategy.md versioning rules. Suggests migration paths for breaking changes. Prevents removing endpoints, changing request/response formats, dropping database columns, modifying function signatures without deprecation.

Use this skill when implementing responsive design, optimizing layouts for different screen sizes, or working on responsive components for the EVOLEA website. Provides the EVOLEA breakpoint system, fluid typography scales, and responsive CSS patterns following 2025 best practices with EVOLEA brand adherence.

Enforce pristine interrupt/syscall paths with no logging, diagnostics, or heavy operations. Use when developing interrupt handlers, syscall entry/exit, context switches, or timer code.

Full access to Brevo (email marketing, newsletters) using curl and the Brevo REST API directly - no MCP server or additional dependencies required.

Brief-specific code patterns and conventions

Generate a session briefing from development memory (events.jsonl, sessions.jsonl). Shows recent timeline, open questions, and suggested focus areas.

8-mode brightness system implementation with CSS custom properties. Use when implementing theme switching, color tokens, or fixing brightness-related issues.

Use this skill when creating, running, or managing database migrations for PostgreSQL or ClickHouse. This includes creating new migrations, running migrations, checking migration status, rollback operations, seeding data, or troubleshooting migration issues.

Intelligently onboards brownfield projects by merging existing CLAUDE.md backups into SpecWeave structure. Use when installing SpecWeave into existing projects with CLAUDE.md, merging documentation, or importing project knowledge. Distributes content to appropriate folders without bloating main CLAUDE.md.

Integrating Chrome DevTools and browser automation via MCP for live UI inspection, screenshot-to-code workflows, and visual debugging. Bridges the gap between design and implementation.

BackToBack/ByTheBooks (BTB) - An in-repo collaboration pattern for Human-AI engineering teams. Use this skill when working in repositories with a SPECS/ directory containing README.md, PROGRESS.md, and design documents. BTB emphasizes documentation-driven development, mandatory progress tracking before commits, and a feedback loop between design → MVP → implementation.

This skill generates interactive Chart.js bubble chart visualizations for priority matrices and multi-dimensional data analysis. Use this skill when users need to create scatter plots with variable bubble sizes, particularly for 2x2 priority matrices (Impact vs Effort, Risk vs Value, etc.), portfolio analysis, or any visualization comparing items across two dimensions with a third dimension represented by size. The skill creates a complete MicroSim package with HTML, CSS, and documentation.

Build terminal user interfaces with Go and Bubbletea framework. Use for creating TUI apps with the Elm architecture, dual-pane layouts, accordion modes, mouse/keyboard handling, Lipgloss styling, and reusable components. Includes production-ready templates, effects library, and battle-tested layout patterns from real projects.

This skill should be used when determining which Buck2 targets are affected by code changes for incremental builds and tests. Use this when users ask to test/build changed code, find affected targets, or run incremental workflows with jj revisions.

Create, manage, and optimize budgets for projects, departments, and organizations with variance tracking and scenario planning

This skill provides systematic bug analysis to identify root causes, assess impact, classify severity, and generate actionable fix recommendations. It helps triage bugs efficiently and provides struct

Target-agnostic bug bounty hunting methodology with parallel recon, systematic testing workflows, and vulnerability-specific exploitation guidance