quick-brainstorm

quick-brainstorm is a skill for Claude Code, Codex from exiao/pm-skills. It costs 44 tokens per session (512 once invoked), scanned A, original, Apache-2.0.

A lightweight brainstorming skill that produces five different approaches, estimates each one's chance of success, and states the assumptions behind the ranking.

In plain words
What is it for?
Use it when you need possible approaches, want to compare options, or need a quick first pass before a deeper analysis.
Why use it?
It turns an open-ended problem into a short set of distinct options while making uncertain beliefs visible.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it when you need possible approaches, want to compare options, or need a quick first pass before a deeper analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/exiao/pm-skills/quick-brainstorm
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 exiao/pm-skills --skill quick-brainstorm
Clone the repo
git clone --depth 1 https://github.com/exiao/pm-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 quick-brainstorm

README.md
[![agentmods](https://agentmods.dev/badge/skills/exiao/pm-skills/quick-brainstorm.svg)](https://agentmods.dev/skills/exiao/pm-skills/quick-brainstorm)
Your own site
<a href="https://agentmods.dev/skills/exiao/pm-skills/quick-brainstorm"><img src="https://agentmods.dev/badge/skills/exiao/pm-skills/quick-brainstorm.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 512 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 $0.00044 $0.00512
Opus 5 $0.00022 $0.00256
Sonnet 5 $0.00009 $0.00102
Haiku 4.5 $0.00004 $0.00051

Measured 7d ago against content hash 7a7ec8502f5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

quick-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 7d 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.

thinking/quick-brainstorm/SKILL.md · 34 lines

How it starts

The opening of the file, as written. The whole thing — 34 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quick Brainstorm

Single-pass divergent thinking. No sub-agents, no heavy frameworks.

When the user gives you a question or problem, respond with:

  1. 5 distinct versions/approaches — each meaningfully different, not variations on a theme. For each, include:

    • A short descriptive name
    • 2-3 sentence explanation
    • Estimated probability of success (as a %)
    • Why this one might be the right pick
  2. Key assumptions — State what assumptions you made that would significantly change your answer if they were false. These are the hidden beliefs your ranking rests on.

  3. Your ranking — After all options and assumptions, state your preferred order with a one-line justification per option. The user wants your opinion, not just a menu.

Rules

  • Keep it tight. No walls of text.
  • Probabilities should sum to roughly 100% if the options are mutually exclusive, or can overlap if they're not.
  • Be honest about uncertainty. If you don't know, say so.
  • The assumptions section is the most valuable part. Don't phone it in.

Follow-up: JTBD narrowing

After brainstorming, if the user hasn't picked yet, offer to run a "jobs to be done" analysis on the options. Ask: "What are the jobs this [page/feature/system] needs to do?" Then score each brainstorm option against the jobs. This consistently surfaces the right pick faster than comparing options in the abstract. Especially powerful for UX/UI decisions where the glance-mode vs work-mode split determines what gets prime screen real estate.

  • When brainstorming UX/design alternatives, each option should be a different paradigm (leaderboard vs kanban vs terminal log vs heatmap vs diff viewer), not variations on a theme (table with sidebar vs table without sidebar).
  • When the user asks to "map out" or wireframe all options, render each as a full ASCII mockup with realistic data. Don't abbreviate. Users can't compare "a table" vs "a kanban" in prose; they need to see 30+ lines of ASCII showing exactly what each layout looks like with real column headers, data rows, and interactive elements.

Read the full file on GitHub · 34 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. 7d ago First seen · 34 lines · 44 tokens per session scan A 7a7ec8502f5f

Subscribe to this mod's changes

quick-brainstorm is a skill published in the GitHub repository exiao/pm-skills (9 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 44 tokens to every session and 512 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.

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