ccc-brainstorm

ccc-brainstorm is a skill for Claude Code, Codex from KevinZai/commander. It costs 31 tokens per session (1,749 once invoked), scanned A, original, MIT.

A design-first planning skill that produces three different approaches before any code is written. It asks you to choose a direction when you are exploring a feature or deciding between technical options.

In plain words
What is it for?
Use it to explore feature designs, compare authentication, database, design-system, or API choices, and decide between possible approaches.
Why use it?
It helps expose trade-offs early, before implementation makes a poor choice expensive to change.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/kevinzai/commander/ccc-brainstorm
Any agent
npx skills add KevinZai/commander --skill ccc-brainstorm
Clone the repo
git clone --depth 1 https://github.com/KevinZai/commander

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 ccc-brainstorm

README.md
[![agentmods](https://agentmods.dev/badge/skills/kevinzai/commander/ccc-brainstorm.svg)](https://agentmods.dev/skills/kevinzai/commander/ccc-brainstorm)
Your own site
<a href="https://agentmods.dev/skills/kevinzai/commander/ccc-brainstorm"><img src="https://agentmods.dev/badge/skills/kevinzai/commander/ccc-brainstorm.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,749 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00031 $0.01749
Opus 5 $0.00015 $0.00874
Sonnet 5 $0.00006 $0.00350
Haiku 4.5 $0.00003 $0.00175

Measured 4d ago against content hash f7a160932114, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ccc-brainstorm 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 4d 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.

commander/cowork-plugin-codex/skills/ccc-brainstorm/SKILL.md · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

$ccc-brainstorm — Design-First Ideation Gate

Before writing code or specs, generate 3 distinct alternatives. Forces designer-mode thinking and surfaces tradeoffs early. No code is written during this skill — only decisions are made.

Triggers

  • $ccc-brainstorm or /brainstorm
  • "how should I build X"
  • "which approach should I take"
  • "I'm torn between X and Y"
  • "help me decide on [auth / DB / design system / API shape]"
  • "explore options for"
  • "what are my choices for"

When NOT to Use

  • Fixing a bug with an obvious solution (use $ccc-review or just fix it)
  • Well-known patterns where the answer is already standard (e.g., "how do I add a .env file")
  • Tasks with a single correct answer (use $ccc-plan directly)
  • Mid-implementation pivots where switching costs exceed the decision value

Process

Step 1 — Capture the question

If no argument provided, call AskUserQuestion:

question: "What are we brainstorming?"
options:
  - label: "🆕 New feature design"
    description: "You have a feature idea and want to explore approaches before writing any code."
  - label: "🔀 Choosing between approaches"
    description: "You have 2–3 candidates and need to compare them rigorously."
  - label: "🎨 UI/UX decision"
    description: "Layout, component library, interaction model, visual system."
  - label: "🏗️ Architecture choice"
    description: "DB schema, service boundary, auth strategy, data model."
  - label: "✏️ Free-form — I'll describe it"
    description: "Type your question in the next prompt."

Accept the free-form description as the brainstorm topic.

Step 2 — Spawn 3 parallel micro-agents

Fire 3 Agent calls simultaneously. Each agent receives this base context:

Topic: {user_topic}
Codebase context: {relevant files or stack, if provided}

Agent A — Simplest Possible Prompt:

"You are evaluating the SIMPLEST possible solution for: {topic}. What is the most direct, boring, fewest-moving-parts approach? No abstractions, no future-proofing. Return: name (5 words max), summary (2–3 sentences), pros (3 bullets), cons (3 bullets), risks (1–2 bullets), reversibility (easy / medium / hard), best_for (one line)."

Read the full file on GitHub · 175 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. 4d ago First seen · 175 lines · 31 tokens per session scan A f7a160932114

Subscribe to this mod's changes

ccc-brainstorm is a skill published in the GitHub repository KevinZai/commander (6 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 1,749 once invoked, about $0.0002 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.