digoal

digoal/blog

Instructions file

Claude Code instructions for digoal/blog, covering claude.md, repository overview, repository structure, file naming convention and blog post format.

digoal/blog

Skill Claude CodeCodex

A skill for predicting the next-day movement of individual Chinese mainland stocks, known as A-shares, using a four-part analysis of the market, money flows, technical signals, and news.

digoal/blog

Skill Claude CodeCodex

A thinking framework based on the work and public technical views of PostgreSQL developer Andres Freund. PostgreSQL is a database system, and the framework emphasizes measurement, performance, scalability, and foundational engineering decisions.

digoal/blog

Skill Claude CodeCodex

三层审查模型,逐段逐句验证文章真伪、证据链与逻辑结构。Use when the user asks to fact-check, verify, audit, or evaluate the credibility of an article, essay, report, opinion piece, social-media post, or any written claim — including checking logical consistency, evidence chains, source reliability, fabrication, non-quantifiable conclusions, and…

digoal/blog

Skill Claude CodeCodex

Convert a Markdown article into a natural first-person podcast script for 1 to 4 speakers and save it as a .txt file under the current project's markdown directory. Default to Chinese output unless the user explicitly specifies another language, while preserving English terms that appear in the article. Use when the…

digoal/blog

Skill Claude CodeCodex

Write Chinese Markdown articles for university students and adults with social experience that explain one viewpoint, axiom, theorem, law, principle, or theory system through "求真讲法、求存讲法、思考", with text/Mermaid and standalone GitHub-renderable SVG files, assumptions, derivation or motivation, applicability boundaries…

digoal/blog

Skill Claude CodeCodex

Turn a blog post, article, notes, or any source material into a set of vertical poster images — one cover plus several coherent content slides that explain the core points. Renders HTML/CSS to exact-size PNGs via headless Chrome. Use whenever the user wants cover art, 讲解图/配图, carousel slides, 封面图, poster series, or…

digoal/blog

Skill Claude CodeCodex

Activates Warren Buffett's complete investment thinking system. The following scenarios must trigger it: analyzing any stock or company, evaluating investment opportunities, interpreting financial reports/annual reports/shareholder letters, assessing business moats or competitive advantages, evaluating management…

digoal/blog

Skill Claude CodeCodex

Generate stage-1 publishable daily financial news markdown by accessing current web data, filtering reliable macro/market news, validating numbers and article logic, and writing a source-backed brief. Use when user asks for "今日财经", financial summary, market analysis, daily finance report, 公众号财经日报, or the first step of…

digoal/blog

Skill Claude CodeCodex

Write Chinese "数据库筑基课" Markdown articles for database architects, DBAs, and application developers. Use when the user provides a database foundation article title and references such as technical docs, product manuals, open-source repositories, DeepWiki pages, papers, source code, or related blog posts, and wants a…

digoal/blog

Skill Claude CodeCodex

A guide for collecting and summarizing the past week’s news about databases, artificial intelligence, GitHub, and AI research papers.

digoal/blog

Skill Claude CodeCodex

A set of instructions for answering questions in the style and reasoning framework of Digoal, a Chinese technology and investing blogger.

digoal/blog

Skill Claude CodeCodex

A Chinese-language writing workflow that rewrites an article in the first-person voice and style of digoal, also known as 德哥. It can expand the source material when needed and saves the result as Markdown with referenced SVG illustrations.

digoal/blog

Skill Claude CodeCodex

Portable digital employee distilled from digoal's personal blog for PostgreSQL, PolarDB, DuckDB, AI+database, vector/RAG, database operations, source-code reading, technical content creation, open-source community strategy, and "德说" style strategic analysis. Use when asked to answer as 德哥/digoal, mine a local…

digoal/blog

Skill Claude CodeCodex

Generate a source-backed, shareable Chinese Markdown reading note from a Douban book URL. Use when the user provides a Douban book link and asks for 读书笔记, book notes, book summary, reading reflection, 图文并茂笔记, or a Markdown article that combines book metadata, high-quality external research, the author's argument…

digoal/blog

Skill Claude CodeCodex

A research and planning adviser for companies. Given company details and public sources, it creates a company profile, future plans, and recommendations in Chinese.

digoal/blog

Skill Claude CodeCodex

Explain a finance-explosive-article markdown file for readers with weak financial knowledge by unpacking concepts, causal chains, examples, analogies, and transferable analysis methods. Use when the user asks to turn a daily finance explosive article, 德哥财经爆款文章, market commentary, or finance markdown into a…

digoal/blog

Skill Claude CodeCodex

Generate stage-2 publishable deep financial analysis markdown from a daily-finance brief plus current web verification, using liquidity, interest rates, risk appetite, capital flows, policy, and balance-sheet constraints. Use when user wants a deeper 公众号-style markdown analysis based on daily-finance output, core…

digoal/blog

Skill Claude CodeCodex

Generate stage-3 high-impact publishable markdown articles in 德哥风格 from daily-finance and finance-core-analysis outputs plus current web verification: first-principles mechanisms, counterintuitive '不是A，是B' framing, reusable systemic models, and strict data/logic validation. Use when user wants a 公众号爆款 article, final…

digoal/blog

Skill Claude CodeCodex

Generate a source-backed weekly financial trading outlook from daily-finance, finance-core-analysis, and finance-explosive-article outputs plus fresh authoritative market data. Use when the user asks for future-one-week market outlook, weekly bullish/bearish sectors, stock picks, China A-share and US stock coverage…

digoal/blog

Skill Claude CodeCodex

Analyze company annual reports, quarterly reports, 10-K/10-Q filings, earnings releases, shareholder letters, or financial-report PDFs/URLs/files and produce a professional Chinese Markdown report for ordinary investors. Use when the user provides a company financial report address or local file and asks for 财报分析…

digoal/blog

Skill Claude CodeCodex

Find latent bugs in a local PostgreSQL source tree (RELxxSTABLE branch or HEAD) the way a core hacker does: build a heavily-poisoned debug instance (cassert + cache-discard + -O0/-ggdb3 + core dumps), fuzz it (sqlsmith) until the backend crashes, triage the core into a minimal reproducer (MRE), git-bisect the…

digoal/blog

Skill Claude CodeCodex

A planning guide that uses a person’s background, resources, problems, goals, and industry situation to create a future-oriented Chinese advice document.

digoal/blog

Skill Claude CodeCodex

A guide for interpreting GitHub’s weekly Trending lists and open-source project rankings. GitHub is a website where developers publish and collaborate on software projects.