Apply Eskil Steenberg's black box architecture principles to build modular, maintainable software. Automatically refactors code into replaceable components, designs system architectures with clean boundaries, and debugs with modular isolation.

**Status**: ✅ Production Ready

**Version**: 1.0.0

blender-toolkit

Blender 3D creation suite for modeling, animation, rendering, compositing, video editing, and game development. Use for 3D modeling, sculpting, animation, shading, rendering, simulation, video editing, and Python scripting.

Parallelizes multi-issue sprints by running independent Claude agents in isolated git worktrees. Each agent creates a PR, self-reviews to 10/10 with 100% issue coverage, then PRs are sequentially merg

Create working, tested Bloblang transformation scripts from natural language descriptions.

| Atributo | Valor |

Design and implement blockchain integrations across chains and frameworks with emphasis on patterns over specific technologies. Use when building Web3 applications, smart contract systems, token mechanics, decentralized identity, or blockchain-verified data. Triggers on blockchain architecture, smart contract design, Web3 integration, token systems, or decentralized application development. Framework-agnostic—applies to Ethereum, Solana, or emerging chains.

Converts static web or Next.js projects into ArcBlock blocklets using provided DID. Analyzes project structure, generates configuration files, and validates setup. Requires blocklet DID as parameter.

Complete blog article creation workflow with automatic OG image generation. Use for creating new blog articles - supports prime (research), plan, execute, validate, and generate-og-prompt subcommands. Automatically generates OG images using Gemini API if GEMINI_API_KEY is configured.

Use when managing blog-cc static sites - content creation, deployment, themes, courses. Conversational content management with AI generation, validation, and GitHub Pages deployment.

Streamline the daily blog post creation process by automating research, drafting, and style review in a single command.

Fetch and compress blog articles from tech-lab.sios.jp into the doc/ directory with token usage statistics and OGP metadata

Manage blog post creation, YAML frontmatter (slug, title, excerpt, categories), validate metadata, track pipeline stages, export to PDF. Use when creating blog posts, publishing, or managing blog-specific workflows.

Track code through the forest with unerring precision. Pick up the scent, follow the trail, and map the territory. Use when exploring unfamiliar codebases, finding patterns, or understanding how systems connect.

Citation formatting for law reviews and legal scholarship per *The Bluebook: A Uniform System of Citation* (21st ed. 2020).

bluebubbles-setup

Discovery phase for blueprint workflow - interview triggers, acceptance criteria, and feature classification

Use when managing blueprints directory structure and avoiding duplication. Always search_blueprints before creating to prevent duplicate documentation. Handles naming conventions and cross-references.

Atomic command primitives for BMAD operations. Provides type-safe, testable wrappers around file operations and test execution with structured JSON I/O and built-in telemetry. This skill should be used when BMAD workflows need deterministic, reliable primitive operations with observability.

Implements stories with code and tests.

bmad-integration

Business Model and Architecture Design methodology for aligning technical architecture with business model sustainability and scalability

Establishes instrumentation, monitoring, and alerting foundations.

Orchestrates BMAD workflows for structured AI-driven development. Use when initializing BMAD in projects, checking workflow status, or routing between 4 phases (Analysis, Planning, Solutioning, Implementation). Manages project configs, tracks progress through project levels 0-4, and coordinates with specialized workflows. Trigger on /workflow-init, /workflow-status, or when users need BMAD setup.

Creates PRDs and plans features.

Hardens designs and implementations with structured security reviews.

Expert in preparing board approval memoranda for infrastructure projects, land acquisitions, and capital expenditures including executive summaries, financial impact analysis, risk assessment, governance compliance, and formal board resolution language. Use when preparing board approval requests, drafting decision memoranda, or structuring governance documentation. Key terms include board approval, board resolution, governance, authorization, ratification, financial impact, risk assessment, executive summary, decision memorandum

Expert knowledge of the Board SDK for Unity, enabling touch input, piece detection, and hardware integration for the Board multi-touch display.

Board game design workflow for creating fun, balanced games. Use when designing mechanics, balancing factions, analyzing resource economies, validating rules clarity, planning playtests, or iterating on game systems. Applies Eurogame principles and proven design methodology.

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Generate framework-specific boilerplate code

Test software in the style of Michael Bolton, Rapid Software Testing co-creator with James Bach. Emphasizes the distinction between testing and checking, critical thinking, oracles, and the social nature of quality. Use when designing test strategies, evaluating test automation, or developing critical thinking in testers.

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Compare bond performance against market benchmarks and indices. Analyzes yield spreads, duration matching, and relative value. Requires numpy>=1.24.0, pandas>=2.0.0. Use when evaluating bonds against peers, measuring portfolio attribution, or identifying value opportunities in fixed income markets.

Price fixed income securities using present value, yield-to-maturity, and market conventions. Handles treasuries, corporates, municipals with various coupon frequencies. Requires numpy>=1.24.0, pandas>=2.0.0, scipy>=1.10.0. Use when valuing bonds, calculating accrued interest, or analyzing price sensitivity to yield changes.

Design the structural and emotional architecture for nonfiction books. Use when an author has a validated book concept and needs to create the blueprint before drafting. Triggers include requests to structure a book, create a chapter outline, design a table of contents, map the reader's journey, or plan book organization. Requires upstream documents from book-ideation (Book Concept Document) and optionally from idea-validator (Validation Report) and market-research (Market Research Report).

This skill generates a structured chapter outline for intelligent textbooks by analyzing course descriptions, learning graphs, and concept dependencies. Use this skill after the learning graph has been created and before generating chapter content, to design an optimal chapter structure that respects concept dependencies and distributes content evenly across 6-20 chapters.

Stress-test book concepts against existing research before committing to architecture. Use when the user has a Book Concept Document ready for validation, wants to verify their thesis is defensible, needs to understand the competitive intellectual landscape, or wants honest assessment of their idea's strengths and weaknesses. Produces a Validation Report that informs the Go/No-Go decision. Nonfiction only.

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.

A complete system for converting books into SFT datasets and training style-transfer models. This skill teaches the pipeline from raw ePub to a model that writes in any author's voice.

book-writer

Manage bookkeeping tasks using the Layer API. Use for journal entries, account management, financial reports (P&L, balance sheet), ledger accounts, and categorizing transactions. Invoke when users mention accounting, bookkeeping, journal entries, chart of accounts, P&L, profit and loss, balance sheet, or financial reports.

Load research corpus into the database by processing files, directories, or URLs through semantic chunking, embedding generation, entity extraction, and relationship building

Execute ad-hoc database queries to explore the book's knowledge base using natural language questions that translate to semantic search, graph traversal, timeline queries, or hybrid queries

Execute research tasks autonomously by searching for sources, evaluating reliability, ingesting content, and resolving knowledge gaps

Display comprehensive project progress including BRD status, corpus statistics, research progress, and writing progress with recommendations for next actions

bootc