brainstorming

brainstorming is a skill for Claude Code, Codex from tommymorgan/claude-plugins. It costs 13 tokens per session (1,157 once invoked), scanned A, original, MIT.

A collaborative process for turning an idea into a detailed design or specification. It examines the project, asks clarifying questions, compares approaches, and records decisions.

In plain words
What is it for?
Use it to explore a feature or problem, investigate the codebase, ask focused questions, and choose between possible designs.
Why use it?
It helps replace vague requirements with a shared understanding of the problem, constraints, users, and success criteria before implementation.

Skill for Claude CodeCodex

Part of the tommymorgan plugin — 10 skills, 14 commands, 13 agents, 4 hooks shipped together

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/tommymorgan/claude-plugins/brainstorming
Any agent
npx skills add tommymorgan/claude-plugins --skill brainstorming
Clone the repo
git clone --depth 1 https://github.com/tommymorgan/claude-plugins

Made for: Claude Code, Codex.

Or install tommymorgan, the plugin that ships this one along with the rest of its 10 skills, 14 commands, 13 agents, 4 hooks.

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/tommymorgan/claude-plugins/brainstorming.svg)](https://agentmods.dev/skills/tommymorgan/claude-plugins/brainstorming)
Your own site
<a href="https://agentmods.dev/skills/tommymorgan/claude-plugins/brainstorming"><img src="https://agentmods.dev/badge/skills/tommymorgan/claude-plugins/brainstorming.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,157 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 $0.00013 $0.01157
Opus 5 $0.00006 $0.00579
Sonnet 5 $0.00003 $0.00231
Haiku 4.5 $0.00001 $0.00116

Measured 5d ago against content hash d4b30eb9a535, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 5d 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.

tommymorgan/planning/skills/brainstorming/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Brainstorming Ideas Into Designs

Help turn ideas into fully formed designs and specs through natural collaborative dialogue.

The Process

Phase 1: Understanding the Idea

Check project context first:

  • Read relevant files, docs, recent commits
  • Understand existing patterns and conventions
  • Identify constraints from the codebase

Ask questions one at a time:

  • Only one question per message
  • Prefer multiple choice questions when possible
  • Open-ended questions are fine when choices aren't clear
  • Focus on understanding: purpose, constraints, success criteria

Key questions to explore:

  • What problem does this solve?
  • Who are the users?
  • What are the success criteria?
  • What are the constraints?
  • What already exists that this relates to?

Phase 2: Exploring Approaches

Propose 2-3 different approaches:

  • Each approach should be meaningfully different
  • Include tradeoffs for each
  • Lead with your recommended option
  • Explain why you recommend it

Present options conversationally:

I see three ways to approach this:

**Option 1: [Name]** (Recommended)
[Description]
- Pro: [advantage]
- Con: [disadvantage]

**Option 2: [Name]**
[Description]
- Pro: [advantage]
- Con: [disadvantage]

**Option 3: [Name]**
[Description]
- Pro: [advantage]
- Con: [disadvantage]

I recommend Option 1 because [reasoning].

Phase 3: Presenting the Design

Once you understand what to build:

  • Break design into sections of 200-300 words
  • Before presenting each section to the user, run section-level expert review
  • Ask after each section: "Does this section look right?"
  • Wait for confirmation before continuing
  • Be ready to revise if something doesn't fit

Section-level expert review:

Before the user sees each design section, route it to relevant experts based on content keywords:

Section Content Keywords Expert(s) Invoked
database, schema, migration, storage, persistence, query Data Systems Expert
page, form, button, display, UI, component, dashboard, click UX Expert + Accessibility Expert
endpoint, request, response, REST, API, HTTP REST API Guidelines skill + Security Expert
deploy, pipeline, build, release, CI/CD, container Continuous Delivery Expert + Cloud Expert
test, spec, scenario, assert, mock, stub, fixture Testing Expert
module, service, boundary, integration, composition, coupling Software Architecture Expert
user, PII, data collection, consent, retention, GDPR Privacy Expert
metric, SLO, monitor, alert, log, trace, observe SRE Expert
domain, entity, aggregate, bounded context, ubiquitous language Domain Design Expert
lead time, deployment frequency, feedback loop, batch size Engineering Effectiveness Expert
(always) Product Strategy Expert — reviews every section for product value

Read the full file on GitHub · 154 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. 5d ago First seen · 154 lines · 13 tokens per session scan A d4b30eb9a535

Subscribe to this mod's changes

brainstorming is a skill published in the GitHub repository tommymorgan/claude-plugins (4 stars, last pushed 1mo ago), licensed MIT. It adds 13 tokens to every session and 1,157 once invoked, about $0.0001 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.

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