ds
This skill should be used when the user asks to 'start data analysis', 'brainstorm analysis approach', 'plan a data project', 'clarify analysis requirements', or needs the full 5-phase data science workflow with output-first verification.
npx skills add majiayu000/claude-skill-registry --skill ds --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
## Contents - [The Iron Law of DS Brainstorming](#the-iron-law-of-ds-brainstorming) - [What Brainstorm Does](#what-brainstorm-does) - [Critical Questions to Ask](#critical-questions-to-ask) - [Process](#process) - [Red Flags - STOP If You're About To](#red-flags---stop-if-youre-about-to) - [Output](#output) ## Session Resume Detection Before starting, check for an existing handoff: 1. Check if `.planning/HANDOFF.md` exists 2. **If found:** Read it and present to user: - Show the phase, task progress, and Next Action from the handoff - Ask: "Resume from handoff, or start fresh?" - If resume: skip to the recorded phase - If fresh: proceed with brainstorm 3. **If not found:** Proceed normally with Phase 1 (brainstorm) # Brainstorming (Questions Only) Refine vague analysis requests into clear objectives through Socratic questioning. **NO data exploration, NO coding** - just questions and objectives. **Load shared enforcement first:** Read `${CLAUDE_SKILL_DIR}/../../references/ds-common-constraints.md` for the full constraint index. Load conventions for brainstorm phase: Read `${CLAUDE_SKILL_DIR}/../../references/ds-common-conventions.md` for the full convention index. Read `${CLAUDE_SK
- Contents
- Session Resume Detection
- The Iron Law of DS Brainstorming
- What Brainstorm Does
- Critical Questions to Ask
- Data Source Questions
- Objective Questions
- Constraint Questions
- Output Questions
- Process
- 1. Ask Questions First
- Smart-Discuss: Batch Ambiguities
- 2. Identify Replication Requirements
- 3. Propose Approaches
What does the ds skill do?
This skill should be used when the user asks to 'start data analysis', 'brainstorm analysis approach', 'plan a data project', 'clarify analysis requirements', or needs the full 5-phase data science workflow with output-first verification.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill ds --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.