Art & Design

Expert in building custom tools that solve your own problems first. The best products often start as personal tools - scratch your own itch, build for yourself, then discover others have the same itch

>- Use when resume or portfolio lines need a stronger rewrite, optionally to a JD. Triggers: "이 문장 고쳐줘", "이 부분 어떻게 쓰면 좋아", "더 잘 쓰는 법", "임팩트 있게 바꿔줘", "rewrite this portfolio section", "이력서 맞춰줘", "공고에 맞게 고쳐줘", "이력서 최적화", "tailor my resume to this JD".

>- Use when someone wants to understand the writing patterns in their portfolio — not what it says but how it reads: passive voice ratio, subject audit, number density, and decision visibility. Triggers on: "패턴 분석해줘", "오너십이 잘 드러나나", "피동형 많이 썼나".

>- Use when someone needs an interview preparation plan before their interview process begins — a study schedule, gap analysis by topic area, and STAR story prompts. This is planning, not practice. Triggers on: "interview prep plan", "면접 준비 계획".

>- Use when preparing a job application or career transition end-to-end, from JD fit through 자기소개서 to mock interview. Triggers on: "job application workflow", "이직 준비 전체", "취업 프로세스 시작", "career transition", "job search process".

>- Use when someone wants a realistic mock interview grounded in their own portfolio, with per-answer coaching. Triggers on: "모의 면접 해줘", "인터뷰 연습", "mock interview", "grill me on my portfolio".

>- Use when judging a portfolio's fit to a JD, or with no JD to company types or a named company. Triggers: "이 공고에 맞아?", "JD랑 비교해줘", "어느 회사에 잘 맞아?", "네이버 지원하려는데 어때?", "which companies fit me". Not generic "서류 통과할까?" (feedback).

Founder vs employee personal branding strategies with LinkedIn positioning and exit planning

>- Use when someone explicitly asks for beta portfolio feedback: feedback plus writing patterns (피동, team subject, number density, decision visibility). Triggers only on "피드백 베타로", "feedback beta".

>- Use when a PPTX must be built from content instead of typed slide by slide — read a template, write the deck as markdown, render. Triggers: PPT 만들어줘, 템플릿에 내용 채워줘, 발표자료 생성, md로 PPT 만들기, deck from markdown, PPT 키컬러 변경, 브랜드 컬러로 교체, recolor pptx.

>- Use when someone shares a developer portfolio and wants interviewer-grade feedback: screen verdict, whether numbers and skills hold up, whether it reads at the claimed level. Triggers: "포트폴리오 피드백 해줘", "서류 통과할까", "숫자 근거 있어?", "시니어로 읽혀?", "고친 버전 비교".

Transform technical projects into compelling portfolio pieces with executive summaries, technical deep-dives, architecture diagrams, impact metrics, and demo-ready GitHub Pages. Analyzes GitHub repos and project descriptions to generate audience-specific showcase materials.

A brief description of what this skill does

Creates and reschedules macOS Reminders (fast nudges) and private Calendar events (time blocks). Attaches user-provided files to Calendar events the same way Calendar.app does. Default schedule: next free day starting tomorrow unless the user names an exact time. Never shares calendars or invites to anyone. Use when the user says \"remind me\", \"add a reminder\", \"move reminder\", \"reschedule reminder\", \"push that reminder to\", \"put this on my calendar\", \"schedule this\", \"block time\", \"don't let me forget\", or asks to attach an image/file to a reminder event.

Audit a design portfolio website against what top design leaders actually look for when hiring. Use with /portfolio-audit <url>.

Proofreads messages and teaches reusable writing patterns. Use when the user pastes a work message, Slack draft, status update, or asks for proofreading, tone, clarity, grammar, flow, or constructive feedback on writing they will send at work.

Agent-only. After the user asks to create a PR for a new or updated skill under skills/ (never this skill), check project install vs source with scripts/diff-install.mjs; if missing or stale, ask to install locally via relative symlinks. Use when authoring or changing skills in this repo, opening a skill PR, or finishing skill work.

Interviews the user one decision at a time about adapting an existing iPhone app to iPhone Duo and writes an adaptation decision record only after they confirm a shared understanding. Use when the user is designing or adapting an app for iPhone Duo, a folding iPhone, outer and inner displays, or side-placed controls.

Implement, extend, and debug Contentful personalization. Use onboarding for new, project-wide, or unknown setups; use extend-existing only for scoped work on an explicitly working integration. Trigger keywords: personalization, optimization, ninetailed, A/B test, experiment, multivariate test, targeting, audience targeting, segments, variants, content variants, set up personalization, implement personalization, enable personalization, personalization not working, personalization broken, personalize this component, am I ready for personalization, experience API, Contentful Experiences, Experiences SDK, Studio Experiences, personalization in Next.js, @contentful/optimization, @ninetailed/experience.js, run an experiment, check this URL, debug this live page, inspect network requests, check console errors, experience.ninetailed.co

Designs UI in Penpot via MCP with component discipline, flex alignment, outside-in build order, mockup/design modes, and optional skill updates from user feedback. Use for Penpot mockups, high-fidelity designs, Penpot MCP work, or component/variant refactors in Penpot.

Plans and builds UI mockups in Penpot with user-centered workflow, fidelity levels, a six-step process, and outside-in canvas assembly. Use when creating mockups, screen mockups, wireframe-to-mockup work, low/high-fidelity UI, platform-specific layouts, or mockup design best practices in Penpot.

Monitor one GitHub PR for new review feedback, implement only meaningful fixes, and answer reviewers with evidence, friendly wit, and pushback on unrealistic or overly defensive comments. Use when the user asks to babysit, watch, or monitor Codex/reviewer comments on a PR.

The single entry point that executes a Public Portfolio Challenge episode or addendum runbook end-to-end, delegating each stage to the functional skills. Use when asked to run/execute/replay Episode 10, its bakeoff, or its addendum with the NexusTrade MCP connected. Reads the target runbook, pins its real artifacts (IDs, the incumbent bar), sequences the stages, and stops at the gated deploy. It orchestrates; the functional skills do the work.

Charles builds production-grade data pipelines that ingest, transform, and validate data from multiple sources. As a Data Engineer I at Clearway Energy Group, he works daily with Dagster, dbt, Polars, and Snowflake to automate renewable energy asset data workflows. He has experience designing ETL/ELT processes that handle API integrations, spatial data joins, and incremental loading patterns.