brainstorming

brainstorming is a skill for Claude Code, Codex from mupengi-bot/mupengism. It costs 42 tokens per session (1,177 once invoked), scanned A, a copy of brainstorming, MIT.

A planning guide for turning an early idea into a clear design before implementation. It uses structured discussion to uncover missing details and assumptions.

In plain words
What is it for?
Use it when planning a feature, component, architecture change, or other new behavior that needs clarification before coding.
Why use it?
It helps prevent coding too soon, building the wrong thing, or adding behavior that was never agreed on.

Skill for Claude CodeCodex

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

Good fit Use it when planning a feature, component, architecture change, or other new behavior that needs clarification before coding.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mupengi-bot/mupengism/brainstorming
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 mupengi-bot/mupengism --skill brainstorming
Clone the repo
git clone --depth 1 https://github.com/mupengi-bot/mupengism

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 brainstorming

README.md
[![agentmods](https://agentmods.dev/badge/skills/mupengi-bot/mupengism/brainstorming/github.svg)](https://agentmods.dev/skills/mupengi-bot/mupengism/brainstorming)
Your own site
<a href="https://agentmods.dev/skills/mupengi-bot/mupengism/brainstorming"><img src="https://agentmods.dev/badge/skills/mupengi-bot/mupengism/brainstorming/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for brainstorming

Your own site · 80×15
<a href="https://agentmods.dev/skills/mupengi-bot/mupengism/brainstorming"><img src="https://agentmods.dev/badge/skills/mupengi-bot/mupengism/brainstorming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,177 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 86% copy Near-identical to another mod 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 $0.00042 $0.01177
Opus 5 $0.00021 $0.00589
Sonnet 5 $0.00008 $0.00235
Haiku 4.5 $0.00004 $0.00118

Measured 10d ago against content hash 00775d6cbe79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

brainstorming 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 10d 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.

Origin

This is a copy

86% identical to brainstorming — 18 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/brainstorming/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Brainstorming Ideas Into Designs 🐧

⚠️ DEPRECATED — This skill has been merged into think-tank v2.
Please use think-tank --mode brainstorm instead. All brainstorming principles (diverge/converge, Understanding Lock, YAGNI) are now integrated into think-tank brainstorm mode.

Purpose

Turn raw ideas into clear, validated designs and specifications through structured dialogue before any implementation begins.

This skill exists to prevent:

  • premature implementation
  • hidden assumptions
  • misaligned solutions
  • fragile systems

You are not allowed to implement, code, or modify behavior while this skill is active.


Operating Mode

You are operating as a design facilitator and senior reviewer, not a builder.

  • No creative implementation
  • No speculative features
  • No silent assumptions
  • No skipping ahead

Your job is to slow the process down just enough to get it right.


The Process

1️⃣ Understand the Current Context (Mandatory First Step)

Before asking any questions:

  • Review the current project state (if available):
    • files
    • documentation
    • plans
    • prior decisions
  • Identify what already exists vs. what is proposed
  • Note constraints that appear implicit but unconfirmed

Do not design yet.


2️⃣ Understanding the Idea (One Question at a Time)

Your goal here is shared clarity, not speed.

Rules:

  • Ask one question per message
  • Prefer multiple-choice questions when possible
  • Use open-ended questions only when necessary
  • If a topic needs depth, split it into multiple questions

Focus on understanding:

  • purpose
  • target users
  • constraints
  • success criteria
  • explicit non-goals

3️⃣ Non-Functional Requirements (Mandatory)

You MUST explicitly clarify or propose assumptions for:

  • Performance expectations
  • Scale (users, data, traffic)
  • Security or privacy constraints
  • Reliability / availability needs
  • Maintenance and ownership expectations

Read the full file on GitHub · 238 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. 10d ago First seen · 238 lines · 42 tokens per session scan A 00775d6cbe79

Subscribe to this mod's changes

brainstorming is a skill published in the GitHub repository mupengi-bot/mupengism (10 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 1,177 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to brainstorming, differing in 18 lines, and is treated as a copy.

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