Bun package manager and runtime best practices

Use when getting started with Bun, installing Bun, initializing projects, or configuring bunfig.toml. Invoke for Bun setup, installation issues, or project scaffolding questions.

Use when building server-rendered React with Bun, including streaming SSR, hydration, renderToString, or custom SSR without a framework.

Bun runtime patterns and best practices. Package management, bundling, testing, scripts. Use when working with Bun as the JavaScript runtime.

Writing shell commands for OpenCode custom commands using Bun Shell

Use when building or running SvelteKit apps on Bun, including SSR, adapters, and Bun-specific APIs

TanStack Start full-stack React framework with Bun runtime. Use for TanStack Router, server functions, vinxi, or encountering SSR, build, preset errors.

Configure Bun's built-in test runner with Jest-compatible APIs. Use when setting up testing infrastructure, writing unit/integration/snapshot tests, migrating from Jest, or configuring test coverage. 3-10x faster than Jest.

Analyze and optimize JavaScript bundle size, identify large dependencies, and improve load times. Use when bundles are large, investigating performance issues, or optimizing frontend assets.

Bundle size analysis and optimization for Webpack, Vite, and esbuild

Bundle size reduction strategies, icon optimization, tree-shaking, and performance analysis. Use when reducing bundle size or optimizing imports.

Reduce JavaScript and CSS bundle sizes through code splitting, tree shaking, and optimization techniques. Improve load times and overall application performance.

Reduce bundle size with splitting and compression.

Bundle and share code as gists or markdown. Use to create shareable code bundles, extract imports, and create GitHub gists.

Expert on ISA system bus for ES-1841. Provides guidance on bus timing, I/O port addressing, memory mapping, bus signals, and expansion card interface.

Business analysis skill for requirements gathering, market research, strategic analysis, and project brief creation. Use when users need to (1) Create comprehensive project briefs, (2) Conduct market or competitive analysis, (3) Facilitate brainstorming sessions, (4) Define problems and validate assumptions, (5) Elicit requirements through structured questioning, (6) Create user personas, or (7) Analyze project feasibility and scope

Expert in bridging the gap between business needs and technical solutions. Specializes in Requirements Engineering, BPMN, and Agile User Stories. Use when gathering requirements, creating user stories, modeling business processes, or translating business needs to technical specs.

Business process analysis, requirements documentation, and workflow optimization for retail, supply chain, and technology organizations

Create or update a comprehensive business case

Perform comprehensive competitor analysis for any business. Produces an executive-summary markdown report with target customer profile, market positioning, pricing/business model, product features, funding/company size, SWOT analysis, and competitive matrix. All findings are data-grounded. Use when the user asks to analyze competitors, understand competitive landscape, compare a business to alternatives, or perform market research.

This skill should be used when the user requests to create professional business documents (proposals, business plans, or budgets) from templates. It provides PDF templates and a Python script for generating filled documents from user data.

Master business documentation including BRD, FRD, specifications, and technical documentation for clear communication and requirements management.

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Especialista en Business Forge: gestión de assets post-magia, Fusion Engine y generación de visuales.

Systematically validate business ideas with proven scoring frameworks. Produces comprehensive 2,000-3,000 word validation report with actionable recommendations and go/no-go decision.

Expert in Japanese business communication covering keigo, email etiquette, meeting protocols, and corporate culture nuances

Implement business logic with ActiveInteraction and AASM state machines. Routes to specialized skills for typed operations and state management.

Create and refactor Python dataclass business models and mappers following clean architecture patterns with proper separation of concerns.

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.

Business model design using Alexander Osterwalder's 9 building blocks. Use when: business model, canvas, value proposition, customer segments, revenue streams, startup planning, analyze business, business strategy.

Complete Business Model Canvas design with all 9 blocks analyzed. Transforms validated ideas into viable business models with revenue clarity and operational strategy.

Expert business planning consultant for creating comprehensive, investor-ready business plans from scratch or refining existing plans. Use when users request help creating a new business plan, updating/reviewing an existing business plan, need guidance on specific business plan sections, or require financial projection assistance. Applies to startups and established businesses across all industries seeking funding or strategic planning.

Create comprehensive business plans, financial projections, and strategic documents for funding or planning

Create or update a business plan

Business rules elicitation and analysis techniques. Covers rule types (constraints, derivations, inferences), decision tables, rule templates, and policy documentation. Use when identifying business policies, constraints, calculations, and decision logic during requirements elicitation.

Use when writing B2B sales emails, professional communication, or business correspondence. Applies Sid's direct voice (simple, brief, human) with Grand Slam Offer strategy (never salesy).

Business strategy expert - defines users, value propositions, use cases, and business requirements. Connects technical development with market realities and ROI. Includes LATAM market (Chile) specialization.

MBA-trained business strategist with full commercial awareness. USE WHEN user says 'business plan', 'financial analysis', 'P&L', 'cash flow', 'valuation', 'market analysis', 'competitive analysis', 'SWOT', 'business model', 'unit economics', 'fundraising', 'pitch deck', or needs strategic business guidance.

Add cinematic lerp-based smooth scrolling for all scroll inputs (mouse wheel, trackpad, touch). Creates butter-smooth momentum scrolling like premium agency websites. Works alongside existing smooth-scroll anchor links.

Beads Viewer - graph-aware triage engine for Beads issue tracker with 9 graph metrics (PageRank, betweenness, HITS, etc.), dependency-aware planning, and purpose-built robot protocol for AI agents.

Advanced memory and knowledge management workflows for Byterover MCP Server. Use when creating implementation reports with timelines, documenting features as PRDs, or syncing project documentation folders with automatic conflict resolution. Extends basic retrieve/store operations with structured workflows for documentation, analysis, and knowledge synthesis.

Manages project knowledge using ByteRover context tree. Provides two operations: query (retrieve knowledge) and curate (store knowledge). Invoke when user requests information lookup, pattern discovery, or knowledge persistence.

Use when implementing data structures in C including arrays, linked lists, trees, and hash tables with manual memory management.

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Convert C/C++ project build.sh and test.sh scripts to support incremental builds. Use when fixing build scripts for re-execution after docker commit, converting to out-of-tree builds, or making scripts idempotent for repeated execution.

Use when managing memory in C programs with malloc/free, pointers, and avoiding common memory safety pitfalls.

Use when c systems programming including file I/O, processes, signals, and system calls for low-level system interaction.

Use when bootstrapping C3 documentation for any project - guides through Socratic discovery and delegates to layer skills for document creation

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