A collection of practical, installable AI agent skills for disk cleanup, AI news retrieval, and project management, following the Agent Skills standard.

Rewrites AI-sounding text so it reads naturally while preserving every factual claim and matching the writer's voice.

Complete and link income statement, balance sheet, and cash flow statement model templates with formulas and checks.

No-code in the front, Python in the back. An open-source framework for creating data apps.

A comprehensive collection of 30+ Claude Code skills for cold email and outbound sales, covering strategy, infrastructure, lead sourcing, and copywriting, with a guided kickoff flow and signal playbooks.

A general purpose scientific writer

Fast, Nimble PDF Writer for Ruby

可能是最深度的 AI 投研报告 Skill：九章个股深研 + 九章财报深度分析，脚本化 DCF/EPV 与可复算估值

Excel Workbook Manager

ETL framework for .NET (Parser / Writer for CSV, Flat, Xml, JSON, Key-Value, Parquet, Yaml, Avro formatted files)

AI agent skills for Upwork freelancers, from a real Top Rated Plus playbook. Free, open, community-written. Not affiliated with Upwork.