yutakobayashidev

Guide frontend component design and code review using functional cohesion. Use when designing, reviewing, or refactoring React/TypeScript UI components with multiple roles, similar screens, conditional rendering, API-union-driven UI, notifications, directory/file rows, create/edit forms, or when deciding whether to split, merge, or commonize components.

Extract transcripts, captions, or subtitles from YouTube videos. Use when the user provides a YouTube URL or video ID and asks for a transcript, optionally with timestamps, or asks to save captions to a file.

Fetch today's Discord channel + Mastodon posts via API tokens, summarize to Markdown, and save into an Obsidian vault (Bun script).

Audit the baseline repo hygiene of an existing Next.js project when joining it for the first time. Use this whenever the user says they just joined a Next.js project, asks what to check first, wants a first-pass setup review, or wants to confirm dependency pinning, pnpm workspace strictness, Knip setup, Node version pinning, environment-variable validation, or testing strategy before doing feature work.

Draft or refine a newcomer-friendly GitHub issue from repo context. Use when the user asks to create a "good first issue", wants a small scoped starter task, needs an issue body with clear acceptance criteria, or wants to split a larger task into a safe first contribution.

Draft or refine an architecture decision record (ADR) when the user needs a durable technical decision, not just a summary. Use for architecture, dependency, API contract, infrastructure, security, tooling, or process choices that need clear rationale, rejected alternatives, consequences, and an adoption path.

Lint and secure GitHub Actions workflows using pinact, actionlint, ghalint, and zizmor. Use when the user adds, updates, or reviews GitHub Actions workflows and wants to check correctness, security, or pin action versions.

Build and run a daily Oura + Discord behavior monitor. Use when the user wants morning wellness summaries, anomaly alerts, readiness/sleep trend checks, or advice based on Oura Ring data combined with chat activity patterns.

Guide for using Ava's MCP tools effectively for task management and progress reporting. Use when working with Ava MCP server to report progress on coding tasks, including starting tasks, updating progress, reporting blockers, and completing tasks. Helps users understand best practices for privacy-conscious task reporting with minimal effort.

Build multi-platform chat bots with Chat SDK (`chat` npm package). Use when developers want to (1) Build a Slack, Teams, Google Chat, Discord, GitHub, or Linear bot, (2) Use the Chat SDK to handle mentions, messages, reactions, slash commands, cards, modals, or streaming, (3) Set up webhook handlers for chat platforms, (4) Send interactive cards or stream AI responses to chat platforms. Triggers on "chat sdk", "chat bot", "slack bot", "teams bot", "discord bot", "@chat-adapter", building bots that work across multiple chat platforms.

Fetch objective metrics for OSS repositories and packages. Use when evaluating, comparing, or selecting libraries and repositories. Supports GitHub repos, npm/PyPI/crates.io packages, and Go modules. Returns stars, downloads, contributors, release activity, and more as Markdown tables (or JSON with --json). No judgments, no recommendations, no scores — just numbers.