mece-skill

Name: mece-skill
Author: uxderrick

uxderrick March 20, 2026

10 copies 0 downloads

MECE (Mutually Exclusive, Collectively Exhaustive) validation and decomposition skill for AI agents. Works with Claude Code, Cursor, Copilot, Codex, Gemini CLI.

MECE Skill

Mutually Exclusive, Collectively Exhaustive — a validation and decomposition skill for AI agents.

Stop shipping specs with overlaps and gaps. MECE ensures every category, requirement, and plan item belongs to exactly one bucket and nothing is left off the list.

What it does

Mode	Trigger	Output
Validate	Run `/mece` after creating any structured list	Overlap report + gap report + corrected structure
Decompose	`/mece break down [topic]`	MECE issue tree from scratch

Why this matters

Most flawed thinking comes from two sources:

Counting something twice under different names (overlap)
Missing something entirely (gap)

This is expensive when you're writing product specs, designing APIs, planning roadmaps, or prompting AI to build features. MECE catches both before they become code, strategy, or shipped product.

Install

Quick install (recommended)

npx skills add https://github.com/uxderrick/mece-skill

Manual install

Clone the repo:

git clone https://github.com/uxderrick/mece-skill.git

Then copy to your agent's skills directory:

Agent	Command
Claude Code	`mkdir -p ~/.cursor/skills && cp -r mece-skill/skills/mece ~/.cursor/skills/mece`
Cursor	`mkdir -p ~/.cursor/skills && cp -r mece-skill/skills/mece ~/.cursor/skills/mece`
VS Code / Cursor	`mkdir -p ~/.cursor/skills && cp -r mece-skill/skills/mece ~/.cursor/skills/mece`
Codex (OpenAI)	`mkdir -p ~/.agents/skills && cp -r mece-skill/skills/mece ~/.agents/skills/mece`
Cursor CLI	`mkdir -p ~/.cursor/skills && cp -r mece-skill/skills/mece ~/.cursor/skills/mece`
Universal (all agents)	`mkdir -p ~/.agents/skills && cp -r mece-skill/skills/mece ~/.agents/skills/mece`

Project-level install

Add to a specific repo instead of globally:

mkdir -p .agents/skills && cp -r mece-skill/skills/mece .agen

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