# Data Forms

Pick the right way to represent a dataset so a reader gets the finding in three seconds...

- Repository: https://github.com/huytieu/COG-second-brain (1331 stars)
- Category: Design
- License: MIT
- Last updated: 2026-10-23
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add huytieu/COG-second-brain --skill data-forms -g -a claude-code -y`
Codex: `npx skills add huytieu/COG-second-brain --skill data-forms -g -a codex -y`
Cursor: `npx skills add huytieu/COG-second-brain --skill data-forms -g -a cursor -y`
Gemini CLI: `npx skills add huytieu/COG-second-brain --skill data-forms -g -a gemini-cli -y`

## Description

Pick the right way to represent a dataset so a reader gets the finding in three seconds, a catalog of 20+ chart and diagram forms with when-to-use and failure modes, plus the encoding decisions that make any of them readable (takeaway headline, direct labels, kill the axis, highlight-and-mute, show the caveat). Style-agnostic, use with whatever palette or design system the destination already has. Use when charting survey results, benchmark data, usage metrics, or research findings for a post, brief, deck, or report, and whenever the default bar chart feels like it's burying the point.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

Read `.claude/skills/data-forms/SKILL.md` and execute it exactly as written, that file is the authoritative
playbook. Then follow `.agents/rules/cog.md`.

Antigravity substitution: where the playbook delegates to a `.claude/agents/<name>`
worker, invoke `.agents/agents/<name>.md` via `invoke_subagent` instead.