Workflow for working with existing codebase

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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.

browser-extension-dev

A modern text-based browser. Renders web pages in the terminal using headless Firefox.

Browse Bluesky content via API and firehose - search posts, fetch user activity, sample trending topics, read feeds and lists, analyze and categorize accounts. Supports authenticated access for personalized feeds. Use for Bluesky research, user monitoring, trend analysis, feed reading, firehose sampling, account categorization.

Use this when working with BlueSky - fetching threads, reading posts, creating content. Shows you how to use pdsx MCP tools for the task.

Create and read posts on BSocial protocol (on-chain social media on BSV). Uses BMAP (Bitcoin Mapping Protocol) for structured data.

Build web applications with Bubble - create no-code apps with databases, workflows, and complex logic

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.

Implementation of preventive and detective controls to prevent cloud bill shock and ensure fiscal governance.

Garante a integridade das transições de status e hierarquia do Budget.

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.

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

TODO

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.

Build commands, build order, TypeScript configuration, and CDK deployment. Use when building packages, troubleshooting build issues, or deploying stacks.

An autonomous loop for the agent to identify, analyze, and fix build errors using `pnpm build`.

Build coordination wrapper for VCV Rack modules using Makefile

Construit des chatwindows avec widgets interactifs ChatWidget. Guide la création de widgets selon le contrat ChatWidget, leur intégration dans ChatWindow, la configuration des workflows (OpenAI Agent / n8n), et la validation via le Playground. Utilise ce skill lorsque l'utilisateur demande de créer, modifier ou intégrer des widgets dans une conversation ChatWindow.

Guidance for building and installing Cython extension packages, particularly when resolving compatibility issues with modern Python and NumPy versions. This skill applies when installing legacy Cython packages, fixing NumPy 2.0 deprecation errors, resolving Python 3.x compatibility issues in extension modules, or troubleshooting Cython compilation failures. Use this skill for tasks involving setup.py with Cython extensions, deprecated NumPy type errors, or installing packages to system Python environments.

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.

build-research

Create modern Algorand smart contracts in Algorand TypeScript or Algorand Python—statically-typed subsets compiled to TEAL bytecode by the Puya compiler.

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Use this skill when the user says:

Help users get promoted at work. Use when someone is preparing for a promotion conversation, building their case for advancement, trying to understand what's blocking their promotion, or figuring out how to get to the next level in their career.

Build a promotion case and produce a Promotion Case Pack (target role + timeline, ladder mapping, evidence log, impact narrative, manager alignment plan, sponsor/visibility map, submission-ready promo doc). Use for promotion packet, getting promoted, leveling up, career ladder, promotion committee. Category: Career.

Guide for creating effective tools for AI agents. Use when building MCP tools, agent APIs, or any tool interface that agents will consume. Focuses on token efficiency, meaningful context, and proper namespacing.

Core concepts for goal-driven agents - architecture, node types, tool discovery, and workflow overview. Use when starting agent development or need to understand agent fundamentals.

building-chat-interfaces

building-chat-widgets

building-chatgpt-apps

Build professional command-line interfaces in Python, Go, and Rust using modern frameworks like Typer, Cobra, and clap. Use when creating developer tools, automation scripts, or infrastructure management CLIs with robust argument parsing, interactive features, and multi-platform distribution.

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building-mcp-servers

Use when building MCP servers in TypeScript, Python, or C#; when implementing tools, resources, or prompts; when configuring Streamable HTTP transport; when migrating from SSE; when adding OAuth authentication; when seeing MCP protocol errors

Comprehensive architecture patterns for multi-agent systems where AI agents coordinate to accomplish complex tasks using tools. Language-agnostic and applicable across TypeScript, Python, Go, Rust, an

building-nextjs-apps

Used to build a project

Help users build and scale their sales organization. Use when someone is hiring their first salespeople, deciding when to bring on sales leadership, structuring sales compensation, or transitioning from founder-led sales.

Build an early sales team and operating cadence (readiness gate, hiring plan, role scorecards, interview loop, onboarding/ramp). Use for first AE/SDR hires, seed→Series A sales team build, and product-led sales pilot. Category: Sales & GTM.

Help users build and maintain strong team culture. Use when someone is defining team values, creating psychological safety, onboarding to a new team, navigating cultural change, or building distributed team norms.

Build or refresh a team culture and produce a Team Culture Operating System Pack (culture snapshot, culture code, norms, rituals, rollout + measurement plan). Use for team culture, culture code, team values, team norms, psychological safety, and coaching culture. Category: Hiring & Teams.

Use when starting on a new product, joining a team, or needing a shared understanding of product, customers, and current bets.