ALSEL Launches “Agent Skills by ALSEL,” a Japanese Database for AI Agent Skills

ALSEL Inc., an EC x AI consulting company based in Tokyo and led by Representative Director Takehiro Saito, launched “Agent Skills by ALSEL” (https://agent-skills.jp), a Japanese-language specialized database for AI agent skills, on May 14, 2026. The service has collected 3,862 skills from around the world that can be used with major AI agents such as Claude, Codex, and Gemini CLI, creating an environment where users can search, compare, and adopt them in Japanese. ALSEL has also developed and released three original skills focused on optimizing product pages for Rakuten Ichiba and Amazon, making them ready for practical use by Japanese EC businesses. “Agent Skills by ALSEL” is a specialized database that enables users to search and compare Agent Skills from around the world in Japanese. Background: Japanese EC businesses have not been able to fully use AI agents With the spread of generative AI such as ChatGPT, Claude, and Gemini, “AI agent skills,” definition files in SKILL.md format that enable AI to perform specific tasks, have rapidly increased worldwide since 2025. Thousands of skills have been published on GitHub alone, covering a wide range of business areas including EC site operations, product data maintenance, SEO optimization, and marketing automation. However, almost all of these skills are written in English and designed for overseas EC environments such as Shopify and Amazon.com. For small and medium-sized EC businesses in Japan, there have been three barriers: they do not support the specific requirements of Rakuten Ichiba, Yahoo! Shopping, and Amazon.co.jp; they do not reflect rules such as product title character limits, including Rakuten’s 127-character limit, catchphrase rules, and category structures; and businesses lack the human resources to find and evaluate English-language skills. As a result, AI skill assets widely used overseas have not flowed into Japanese business operations. What “Agent Skills by ALSEL” solves “Agent Skills by ALSEL” is a specialized database that translates and organizes AI agent skills published around the world into Japanese, allowing Japanese EC businesses and practitioners to search for and adopt them directly. Users can search for Agent Skills that match their needs using Japanese keywords. Key features include the following. The database includes 3,862 skills, making it one of the largest in Japan at present. It covers skills for major providers, including Anthropic Claude, OpenAI Codex, and general-purpose agents. Japanese descriptions are provided for all skills. In addition to the original English skill definitions, functions, use cases, and trigger keywords are described in Japanese so that Japanese users can quickly judge how each skill can be used. An API is provided so AI agents can directly search and invoke skills. By installing the dedicated helper skill “find-skills” in Claude Code, Codex, Gemini CLI, and other tools, users can simply ask in natural language, for example, “Find a Rakuten SEO skill,” and receive relevant skill suggestions in Japanese, with the ability to install them on the spot. ALSEL has also released three original skills developed for Japanese EC businesses, supporting Japanese EC operations such as Rakuten Ichiba and Amazon.co.jp. Rakuten SEO Skill: Optimizes product names and catchphrases based on Rakuten Ichiba’s rules, including the 127-character product name limit and 87-character catchphrase limit. Amazon SEO Skill: Scores and optimizes product pages for Amazon.co.jp in line with COSMO, Rufus, and A10 algorithms. Rakuten RMS Bulk Operation CSV Generation Skill: Automatically generates CSV files in Rakuten RMS control column format using Shift-JIS. These three skills reflect the practical know-how ALSEL has accumulated over 19 years of supporting more than 5,000 EC companies, directly addressing Japan-specific operational issues that similar skills around the world have not covered. ALSEL’s business background ALSEL Inc. is an EC support company founded in 2007. Through store launch support for Rakuten Ichiba, Amazon, Yahoo! Shopping, Shopify, Shopee, and other platforms, it has helped more than 5,000 EC businesses expand sales over 19 years. Representative Director Takehiro Saito has published four books through Gijutsu-Hyohron Co., Ltd. ALSEL also operates several EC x AI businesses, including the EC x AI media site “Uruchikara” (https://uruchikara.jp), real estate services for EC businesses, and cross-border EC solutions using Shopee, Amazon, and Shopify. “Agent Skills by ALSEL” was launched under ALSEL’s business policy of “turning Japan’s small and medium-sized EC businesses into companies that can compete globally,” serving as infrastructure to bring the wave of overseas AI adoption into the Japanese market. Future development ALSEL plans to expand in the following areas. Continuous expansion of listed skills. “Agent Skills by ALSEL” will continuously collect and translate newly released skills from around the world into Japanese, increasing the number of listed skills. It aims to become standard infrastructure for Japanese EC businesses and practitioners in the AI agent era. Additional development of original skills for Japanese EC businesses. ALSEL plans to sequentially release skills supporting Japan-specific services such as Rakuten Ichiba, Yahoo! Shopping, MakeShop, Next Engine, and freee. Corporate implementation support services. As part of its EC x AI consulting business, ALSEL will provide consulting, BPO, and training to help companies incorporate the skill set of “Agent Skills by ALSEL” into their operations. Through its practical program for EC businesses, the “EC x AI Business Implementation Program” (https://alsel.co.jp/pages/alsel-ecai-lp), ALSEL also supports companies through the process of applying AI agents and skill sets to real operations. Community operation. ALSEL will develop a community on “Uruchikara” where EC businesses and practitioners can share and improve skills they have developed themselves, accelerating the formation of Japan’s EC x AI ecosystem. Site information Site name: Agent Skills by ALSEL URL: https://agent-skills.jp Launch date: May 14, 2026 Number of listed skills: 3,862 as of May 14, 2026 Usage fee: Free, including ALSEL’s original skills Supported AI agents: Claude (Anthropic), Codex (OpenAI), Gemini CLI (Google), Open Code, and other general-purpose agents Contact Please use the following form for inquiries. https://alsel.co.jp/pages/contact ALSEL Inc. company profile Location: Yamada Line Building III 9F, 2-11-10 Iidabashi, Chiyoda-ku, Tokyo Representative: Takehiro Saito Established: August 2007 Business activities: EC x AI consulting and BPO; operation of EC x AI media “Uruchikara”; real estate business for EC businesses with real estate transaction license; cross-border EC solution business using Shopee, Amazon, and Shopify URL: https://alsel.co.jp/ Uruchikara: https://uruchikara.jp/ The above information is current as of the distribution date of this press release and may change without prior notice.