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Agent-First API
Agents can autonomously discover, evaluate, and install skills  ·  GET /v1/agent/search?capability=web_search
/llms.txt /v1/agent/info USK Spec Register Skill
USK v3 — AI Skill Store's primary skill standard. Write once, auto-convert for 7 platforms. Anthropic SKILL.md v2 also accepted as compatibility input.
📖 USK Guide USK Spec

🔥 Popular Skills — Top 5 by downloads

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Most Wanted · 3 unmet searches
e.g. 2026 searched 298×
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📦 All Skills 263

approved Knowledge

AI risk classification, governance policy generation, and NYC LL 144 bias audit for US employment AI systems

approved Knowledge

Plan SEO blog structure, generate meta tags and JSON-LD schema markup, audit existing content for SEO issues, and design CTA strategy by funnel stage.

approved Data Processing

Generate, debug, explain, and optimize Excel/Google Sheets formulas with compatibility checks across versions.

approved Text Processing

Draft, adjust tone, check for passive-aggressive language, optimize subject lines, and suggest replies for US business emails.

approved Text Processing

Extractive text summarization toolkit: TextRank, frequency & position heuristics, Korean-first, zero external dependencies. Actions: extract, score_sentences, detect_topics, compare_summaries, audit.

approved Data Processing

Data visualization code generator: auto-detects data shape, recommends chart type, generates matplotlib/plotly/D3 code, applies colorblind-safe Okabe-Ito palette. Zero external deps. Actions: recommend, generate_code, palette, audit, examples.

approved Web

Sitemap parser with 4 actions: fetch_via_robots, parse, detect, audit. Zero external deps, robots.txt auto-discovery, Korean URL encoding, 10+ audit rules.

approved Encoding

Unicode text normalizer with 5 actions: normalize, detect, korean_jamo, width_convert, audit. Zero external dependencies, Korean jamo decompose/combine, fullwidth conversion, zalgo/homoglyph security audit.

approved Development

Convert git commit lists into Conventional Commits-based changelogs (Markdown/JSON, English+Korean), parse/classify/audit commit messages — zero external dependencies.

approved Development

Parse unified git diffs into structured JSON, generate bilingual (EN+KO) summaries, classify change impact, and detect anti-patterns — zero external dependencies.

approved Development

.env file validator with 4 actions: validate, infer_schema, mask, audit. Zero external dependencies, Korean-first messages, sensitive key auto-masking, 10+ audit rules.

approved Encoding

QR code and 1D barcode generator/decoder — zero dependencies, Korean UTF-8 native, SVG+text-art output, 10+ audit rules

approved Utilities

WCAG 2.1 color contrast analysis, fix suggestions, palette matrix, and anti-pattern audit — zero external dependencies.

approved Web

RSS/Atom feed reader with 4 actions: fetch, detect_encoding, filter, audit. Zero external dependencies, Korean EUC-KR auto-detection, client-side keyword filtering, 10+ feed hygiene rules.

csv-validator v1.0.0
approved Data Processing

CSV content validator with 4 actions: validate, infer_schema, stats, audit. Zero external dependencies, Korean PII detection, fix_hint per error, Korean-first messages.

approved Utilities

Explain cron expressions in plain English and Korean, compute next run times, and detect anti-patterns — zero external dependencies.

approved Data Processing ⏳ expired 🔲 sandbox

A multi-model time series forecasting skill supporting ARIMA, Prophet, and LSTM with automatic model selection, backtesting, and confidence intervals for production-ready business forecasting.

approved Development ⏳ expired 🔲 sandbox

Validates Kubernetes deployment manifests for misconfigurations

approved Data Processing ⏳ expired 🔲 sandbox

Extracts structured data from PDF invoices including vendor name, invoice number, dates, line items, tax, and totals. Part of FinanceFlow AI DocuParse Pipeline v2.

approved Development

OpenAPI 3.0/3.1 spec 검증·보안감사·버전비교·예시생성·완성도 측정 — 30+ 규칙, 외부 의존성 0, 한국어 1급 / OpenAPI linter with 30+ rules, zero deps, Korean-first

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