**MANDATORY** - Load this skill BEFORE using brepl in any way. Teaches the heredoc pattern for reliable code evaluation.

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 developing, implementing, or modifying Go backend code for the Brokle platform. This includes creating services, repositories, handlers, domain entities, API endpoints, middleware, workers, or any other Go backend components. Invoke this skill at the start of backend development tasks.

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.

Expert in building browser extensions that solve real problems - Chrome, Firefox, and cross-browser extensions. Covers extension architecture, manifest v3, content scripts, popup UIs, monetization strategies, and Chrome Web Store publishing. Use when: browser extension, chrome extension, firefox addon, extension, manifest v3.

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 uses `btr` (local context tree), NOT `brv` (ByteRover CLI).**

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.

Automates Bubble Tea TUI design by analyzing requirements, mapping to appropriate components from the Charmbracelet ecosystem, generating component architecture, and creating implementation workflows. Use when designing terminal UIs, planning Bubble Tea applications, selecting components, or needing design guidance for TUI development.

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.

Analyze personal or business expenses from CSV/Excel. Categorize spending, identify trends, compare periods, and get savings recommendations.

budget-creation

You have this skill. It's not about what you can't do - it's about what you're exceptionally good at.

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

Bug bounty program management and security disclosure expertise for smart contracts. Covers program setup on Immunefi, vulnerability triage, responsible disclosure coordination, bounty payments, and post-disclosure analysis.

Systematic bug debugging methodology, root cause analysis, and fix verification. Use when investigating and fixing bugs. (project)

> **Skill Variant:** Use this skill for **quick bug triage and interactive debugging** with user feedback. For systematic autonomous debugging workflows with 4-phase protocol and verification gates, u

Structured bug fixing workflow with root cause analysis and regression prevention. Triggers: BF, 修 bug, fix bug, debug, 除錯, 錯誤, error, 問題, issue, 修復, fix, 故障, fault, 異常, exception, 失敗, failure, 不能用, broken, 壞掉.

Advanced diagnostic workflow for bug-fixer agent with mandatory Context7 MCP consultations, Chrome DevTools MCP integration, and systematic root cause analysis across all Clean Architecture layers.

Systematic debugging workflow for CircleTel - analyzes errors, identifies root causes, proposes fixes, and validates solutions with tests

Capture bug context, generate reports, and optionally create GitHub issues or share patterns

Write high-quality bug reports that get fixed quickly. Use when reporting bugs, training teams on bug reporting, or establishing bug report standards.

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bugfix-and-debug

'Investigates and fixes bugs systematically with root cause analysis. Use when asked to debug, troubleshoot, fix a bug, investigate an issue, or find why something is broken. Creates reproduction tests and verifies fixes.'

State-of-the-art procedure for fixing bugs in software projects. Use this skill when a bug has been detected or declared by the user, agent, or another skill (not during early-stage work in progress). Enforces a disciplined test-driven approach - understand, reproduce experimentally, write failing tests, fix the code, and clean up.

Bug hunting with Codex CLI Use when: (1) /bugs is invoked, (2) task relates to bugs functionality.

Build and deploy this Next.js LangChain retrieval agent application with Supabase vector store. Use when building, deploying, setting up vector store, or preparing the project for production.

Expert build engineer specializing in build system optimization, compilation strategies, and developer productivity. Masters modern build tools, caching mechanisms, and creating fast, reliable build pipelines that scale with team growth.

Build feature command

Automatically log meaningful insights, discoveries, and decisions during coding sessions. Capture non-trivial learnings about edge cases, design decisions, patterns, and implementation details. Activate when building complex code where institutional knowledge should be preserved. Log to .claude/insights/ and help transfer key learnings to CLAUDE.md.

Apply throwaway prototyping methodology when exploring new concepts, unfamiliar technology, or unclear requirements. Build fast, learn deeply, then rebuild properly. Use for feasibility studies, proof-of-concepts, and learning exercises.

Implement caching, parallel builds, and artifacts.

Guide for building pMARS (Portable Memory Array Redcode Simulator) and similar software from Debian/Ubuntu source packages. Use this skill when tasks involve enabling source repositories, downloading distribution source packages, removing X11/GUI dependencies, modifying Makefiles, diagnosing segmentation faults, and building headless versions of applications. Applies to Core War simulators and similar legacy software with optional graphics support.

Build concise session context by extracting key information from project logs (CLAUDE.md, TASK_BOARD.md, MIGRATION_LOG.md, DEBUG_LOG.md, GIT_LOG.md, SKILLS_LOG.md) to provide token-efficient project status. Use when beginning work, returning after break, or needing quick project overview without reading full files.

Build INAV SITL (Software In The Loop) firmware for testing without hardware

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builder-role-skill

Step-by-step guide for building goal-driven agents. Creates package structure, defines goals, adds nodes, connects edges, and finalizes agent class. Use when actively building an agent.

Best practices, patterns, and examples for building goal-driven agents. Includes pause/resume architecture, hybrid workflows, anti-patterns, and handoff to testing. Use when optimizing agent design.

Expert at creating and modifying Claude Code agents (subagents). Auto-invokes when the user wants to create, update, modify, enhance, validate, or standardize agents, or when modifying agent YAML frontmatter fields (especially 'model', 'tools', 'description'), needs help designing agent architecture, or wants to understand agent capabilities. Also auto-invokes proactively when Claude is about to write agent files (*/agents/*.md), create modular agent architectures, or implement tasks that involve creating agent components.

Builds AI chat interfaces and conversational UI with streaming responses, context management, and multi-modal support. Use when creating ChatGPT-style interfaces, AI assistants, code copilots, or conversational agents. Handles streaming text, token limits, regeneration, feedback loops, tool usage visualization, and AI-specific error patterns. Provides battle-tested components from leading AI products with accessibility and performance built in.

Guide for creating new AEM Edge Delivery blocks or modifying existing blocks. Use this skill whenever you are creating a new block from scratch or making significant changes to existing blocks that involve JavaScript decoration, CSS styling, or content model changes.