InvestSkill

InvestSkill is an open source collection of 30 structured stock analysis frameworks written as markdown files that an AI assistant can follow. Rather than being an application, it is a set of prompts and skills that turn a general assistant into an equity analyst for a named ticker. The frameworks cover fundamentals, valuation, regulatory filings, positioning and risk. A typical command such as a stock evaluation for a given company has the assistant read filings and financial history, then work through measures such as the Piotroski F Score, return on invested capital, competitive moat and discounted cash flow fair value. Every framework ends with the same investment signal block giving a score from 0 to 10, a confidence level, a time horizon and an action. An installer script places the frameworks into a project and wires up the config file for the chosen tool, including Claude Code, Cursor, GitHub Copilot, Gemini CLI, Codex, OpenCode and any other language model. Documentation is in English and Traditional Chinese. It is aimed at individual investors, students and developers who already use an AI coding or chat assistant and want repeatable analysis templates. The output is generated by the assistant the user supplies, so it is analysis support rather than financial advice. InvestSkill is free and released under the MIT license. The vendor states that it needs no API keys, carries no fees and has no runtime.