mece-framework

mece-framework is a skill for Claude Code, Codex from fzfclee/consulting-skills. It costs 63 tokens per session (876 once invoked), scanned A, original, Apache-2.0.

A way to organize categories so they do not overlap and together cover the important parts of a question. MECE stands for “mutually exclusive and collectively exhaustive.”

In plain words
What is it for?
Use it to review issue trees, options, segments, hypotheses, risks, workplans, taxonomies, and recommendations.
Why use it?
It reduces double counting, unclear ownership, and missing areas in a structure. It helps make problem breakdowns and decision materials easier to use.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review issue trees, options, segments, hypotheses, risks, workplans, taxonomies, and recommendations.

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Install with agentmods
npx agentmods add skills/fzfclee/consulting-skills/mece-framework
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add fzfclee/consulting-skills --skill mece-framework
Clone the repo
git clone --depth 1 https://github.com/fzfclee/consulting-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mece-framework

README.md
[![agentmods](https://agentmods.dev/badge/skills/fzfclee/consulting-skills/mece-framework.svg)](https://agentmods.dev/skills/fzfclee/consulting-skills/mece-framework)
Your own site
<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/mece-framework"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/mece-framework.svg" alt="Measured on agentmods" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 876 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.00876
Opus 5 $0.00032 $0.00438
Sonnet 5 $0.00013 $0.00175
Haiku 4.5 $0.00006 $0.00088

Measured 8d ago against content hash 4a1e1ba65852, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mece-framework scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/mece-framework/SKILL.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MECE Framework

Use this skill to check and improve whether a structure is clear, non-overlapping, and complete enough for decision work.

Method Notes

  • MECE means Mutually Exclusive and Collectively Exhaustive.
  • Mutually exclusive means categories do not overlap in a way that creates double counting or unclear ownership.
  • Collectively exhaustive means the structure covers all material parts of the question within the chosen scope.
  • MECE is a discipline, not a slogan. Use it to improve clarity, not to make every real-world situation artificially neat.

Required Inputs

Collect or infer these inputs before execution:

  • core question or decision
  • current structure, list, tree, segmentation, options, hypotheses, or workplan
  • scope boundary
  • intended use of the structure
  • known exclusions, constraints, or edge cases

If an input is missing, do not block automatically. Mark it as missing, state the assumption used, and add a validation action.

When Not To Use

Do not use MECE when the user is still exploring raw ideas and premature structure would hide weak signals. Use affinity-diagram or mind-map-analysis first.

Step-by-Step Execution

Step Required input How to execute Output
State the scope Core question, intended use, boundary. Define what the structure must cover and what it deliberately excludes. Scope statement.
List current branches Existing list, tree, segments, options, hypotheses, or actions. Put all current items at the same logical level when possible. Current structure.
Test mutual exclusivity Current branches, definitions. Check whether two items overlap, duplicate, mix levels, or create ambiguous ownership. Overlap diagnosis.
Test collective exhaustiveness Scope, edge cases, known exclusions. Ask what important case, stakeholder, cause, option, segment, or risk is missing. Gap diagnosis.
Fix level and logic Overlaps, gaps, mixed levels. Rename, split, merge, move, or add branches so each item has one clear place. Revised structure.
Define inclusion rules Revised structure. Write a short rule for what belongs in each branch and what does not. Category rules.
Stress test with examples Edge cases, sample facts, known scenarios. Place sample items into the structure and check if any item fits nowhere or fits multiple places. Stress-test result.

Read the full file on GitHub · 84 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 84 lines · 63 tokens per session scan A 4a1e1ba65852

Subscribe to this mod's changes

mece-framework is a skill published in the GitHub repository fzfclee/consulting-skills (4 stars, last pushed 20d ago), licensed Apache-2.0. It adds 63 tokens to every session and 876 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.