A curated collection of development, data science, and writing plugins for Claude Code.
To add this marketplace to your Claude Code installation:
/plugin marketplace add edwinhu/workflowsThen install individual plugins:
/plugin install dev
/plugin install ds
/plugin install writingFull feature development workflow with TDD enforcement
A comprehensive development plugin that enforces test-driven development practices through structured phases: brainstorm, plan, implement, review, and verify.
Commands:
/dev- Full feature development workflow with TDD enforcement/dev-brainstorm- Socratic design exploration before implementation/dev-plan- Codebase exploration and task breakdown/dev-implement- TDD implementation with RED-GREEN-REFACTOR cycle/dev-debug- Systematic debugging with root cause investigation/dev-review- Code review combining spec compliance and quality checks/dev-verify- Verification gate requiring fresh runtime evidence/dev-tools- List available development plugins and MCP servers
Hooks:
- Main chat sandbox enforcement
- Grep test detector (prevents grepping source as tests)
- Ralph Wiggum validation
Tags: development, tdd, testing, code-review
Data science workflow with output-first verification
A data science plugin focused on reproducibility and output verification, with specialized skills for academic and financial data access.
Commands:
/ds- Data science workflow with output-first verification/ds-brainstorm- Clarify analysis objectives through Socratic questioning/ds-plan- Data profiling and analysis task breakdown/ds-implement- Output-first implementation with verification at each step/ds-review- Methodology and statistical validity review/ds-verify- Reproducibility verification before completion/ds-tools- List available data science plugins and MCP servers
Data Access Skills:
/wrds- WRDS PostgreSQL access for Compustat, CRSP, EDGAR data/lseg-data- LSEG Data Library (Refinitiv) for market data and fundamentals/gemini-batch- Gemini Batch API for large-scale LLM document processing
Notebook Skills:
/marimo- Marimo reactive Python notebooks/jupytext- Jupyter notebooks as text files for version control
Hooks:
- Data quality checker
- Output verifier
- Reproducibility checker
Tags: data-science, wrds, lseg, jupyter, analysis
Writing workflow with style guides, brainstorming, and AI anti-pattern detection
A writing plugin providing style guidance, topic discovery from Readwise highlights, and automatic detection of AI writing patterns.
Skills:
/writing- General writing guidance using Strunk & White's Elements of Style/writing-econ- Economics and finance writing using McCloskey's Economical Writing/writing-legal- Academic legal writing using Volokh's Academic Legal Writing/writing-brainstorm- Discover topics and gather sources from Readwise highlights/ai-anti-patterns- Detect and revise AI writing indicators (12 pattern categories)
MCP Servers:
readwise- Readwise MCP for highlight search and source gathering
Hooks:
- PostToolUse hook on Write/Edit that warns on AI anti-patterns
Tags: writing, editing, style, ai-detection, readwise
Shared skills and utilities across plugins
Contains common skills used by multiple plugins, including office document format skills.
Skills:
/docx- Word document creation, editing, tracked changes/pdf- PDF extraction, creation, form filling/pptx- Presentation creation and editing/xlsx- Spreadsheet creation and analysis/using-skills- Meta-skill teaching how to use skills
Note: Office format skills are sourced from anthropics/skills via git submodule.
workflows/
├── external/
│ └── anthropic-skills/ # git submodule → github.com/anthropics/skills
├── plugins/
│ ├── dev/ # Development plugin
│ │ ├── .claude-plugin/
│ │ ├── commands/
│ │ ├── hooks/
│ │ └── skills/
│ ├── ds/ # Data science plugin
│ │ ├── .claude-plugin/
│ │ ├── commands/
│ │ ├── hooks/
│ │ └── skills/
│ ├── writing/ # Writing plugin
│ │ ├── .claude-plugin/
│ │ ├── hooks/
│ │ └── skills/
│ └── shared/ # Shared skills
│ ├── hooks/
│ └── skills/
│ ├── docx → external/anthropic-skills/skills/docx
│ ├── pdf → external/anthropic-skills/skills/pdf
│ ├── pptx → external/anthropic-skills/skills/pptx
│ └── xlsx → external/anthropic-skills/skills/xlsx
└── README.md
The office format skills come from Anthropic's official skills repo. To update:
git submodule update --remote external/anthropic-skillsThis project was heavily inspired by obra/superpowers, particularly:
- The SessionStart hook pattern for injecting meta-skills
- The "using-skills" approach that teaches HOW to use skills rather than listing WHAT skills exist
- The philosophy that skills should be invoked on-demand, not dumped into every session
Office format skills (docx, pdf, pptx, xlsx) are from anthropics/skills.
MIT
Edwin Hu