Day Trader skill

Skill Doctor is a runnable skill for Claude Code, Codex, and similar single-player agent setups. It collects past agent conversations, including transcripts, tool calls, and outputs, evaluates them in batches using rubrics such as redundant tests, verbosity, code quality, and efficiency, and produces a report card with suggested changes to skills and configuration. It is presented as part of a self-improvement workflow in which a daily agent identifies recurring failures and can propose fixes through pull requests.

simcraft is a collection of 24 Claude Code skills for video production, software engineering, learning, design, and planning. Each skill is a folder containing a SKILL.md that describes a working method, judgment calls, checks for the result, and tested scripts; Claude Code selects a skill when a user's request matches it rather than requiring the user to invoke the skill by name. The skills include three.js and shader loops, scripted screencasts, video editing, codebase mapping, regression bisecting, flaky-test investigation, benchmarking, API design review, threat modeling, paper-to-implementation work, brand-kit creation, and task routing. It is installed from the repository by linking its skill folders into ~/.claude/skills, and requires Python 3.9+, Node 18+ for browser or video-rendering skills, and ffmpeg for relevant workflows. The repository is licensed under MIT.

Vibe-Trading is an open-source AI personal trading agent and quantitative-finance research workspace developed by HKUDS. It turns natural-language finance questions into runnable analysis and backtesting workflows by connecting an agent to market-data loaders, portfolio and backtesting engines, report generation, persistent memory, and multi-agent research teams across asset classes. Its quantitative and risk-analysis capabilities include strategy backtesting, Heston stochastic-volatility pricing, hierarchical risk parity, copulas, and market-microstructure estimators. The project provides API and MCP interfaces, broker and market-data connectors, portfolio-management and broker-authorized trading workflows, examples, documentation, a demo, and a Shadow Account for testing. It supports read-only account sources such as official IBKR MCP and opt-in Binance USD-M snapshots, while scheduling actions require explicit confirmation and live-order safeguards fail closed on contradictory or invalid data. Implemented as a Python project, it uses a connector onboarding system that stores connection secrets in the operating-system keyring and is distributed under an open-source license.

replica-skill is a set of eleven MIT-licensed Claude skills for researching and rebuilding an existing app. The skills reverse-engineer public pages, screenshots, store listings and a user's own account into screens, flows, components and an inferred data model; plan the stack, database schema and API; reconstruct the design system and application; add authentication, payments and integrations; test flows with Playwright; compare the result with the original; analyze linked user reviews for complaints; rebrand the clone; create launch materials; and deploy it. The skills pass work between stages through files in a project's replica/ directory and can be installed in Claude Code as a plugin, copied into Claude's skills directory, or run by pasting a SKILL.md into a chat. Included Python utilities use the standard library and cover screenshot diffing, feature-parity scoring, review analysis, contrast checking, codebase-name cleanup and store-listing checks. The project states that it rebuilds functionality and user flows rather than source code, proprietary assets, branding, copy, content or private APIs, and that it uses public sources and the user's own account without bypassing logins, paywalls or site terms. It requires Python 3.8 or newer, has no package-install requirement, and is distributed under the MIT license.

A feature of Anthropic's Claude platform that packages reusable instructions, scripts, and reference files into skills that Claude can apply to specific tasks. Skills can be used in Claude applications and through Anthropic's agent-development tools.