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.
npx skills add guanyang/open-agent-hub --skill brainstorminggit clone --depth 1 https://github.com/guanyang/open-agent-hubWrote 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.
[](https://agentmods.dev/skills/guanyang/open-agent-hub/brainstorming)<a href="https://agentmods.dev/skills/guanyang/open-agent-hub/brainstorming"><img src="https://agentmods.dev/badge/skills/guanyang/open-agent-hub/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.
<a href="https://agentmods.dev/skills/guanyang/open-agent-hub/brainstorming"><img src="https://agentmods.dev/badge/skills/guanyang/open-agent-hub/brainstorming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00046 | $0.02300 |
| Opus 5.5 | $0.00018 | $0.00920 |
| Sonnet 5.5 | $0.00009 | $0.00460 |
| Haiku 4.5 | $0.00005 | $0.00230 |
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.
This is a copy
100% identical to brainstorming — 0 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.
How it starts
The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brainstorming
You are very good at building. You build what you believe your human partner wants, and that belief is usually thinner than it feels. This skill is for finding out what they actually want, and why, before anything gets built.
People often haven't finished working out what they want. Good questions help them think it through. When you understand the why, you make the hundred decisions they never mention the way they would have made them.
First: What Do You Actually Know?
Before you reply, ask yourself: what do I know about what they want, and why?
- Everything that matters is in the request ("make the icon cornflower blue"). This is a quick, clear task. Do it, and say what you did.
- Something non-trivial is missing. Start the conversation.
Your First Message
Your first message is two things, in this order:
- One line letting them know that if they'd rather skip the questions and have you just start, they can say so. If they take you up on it, this skill is done: state any significant how-it-gets-made choice (platform, language, medium) in one plain line, then do what they asked through the normal workflow.
- One open question that gets them describing. Ask about a real moment or a concrete picture: "What's the moment you find yourself wishing this existed?" or "Tell me about the people who'll be in the room."
That's the whole message.
The Conversation
Each message ends with one question: a single sentence with no list of example answers hanging off it. Use plain language, pitched just a little above where your human partner is. Match their vocabulary; never use process jargon.
Be clear and concise. Lead with what matters. Avoid jargon. When you report what you found, give them the most important findings and offer the rest.
Get them describing. Open questions come first. Their own words carry intent that your options can't. Offer a short menu only when they're stuck. When they say "just guess" or "what do you think?", propose something concrete.
What ships with it
60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- builder-check-prompt.md 881 B
- scripts/frame-template.html 7.9 KB
- scripts/helper.js 5.5 KB runs code
- scripts/index.js 4.4 KB runs code
- scripts/node_modules/.bin/mime 14 B
- scripts/node_modules/.package-lock.json 35 KB
- scripts/node_modules/accepts/HISTORY.md 5.0 KB
- scripts/node_modules/accepts/index.js 5.1 KB runs code
- scripts/node_modules/accepts/LICENSE 1.1 KB
- scripts/node_modules/accepts/package.json 1.1 KB
- scripts/node_modules/accepts/README.md 4.0 KB
- scripts/node_modules/anymatch/index.d.ts 763 B runs code
- scripts/node_modules/anymatch/index.js 3.1 KB runs code
- scripts/node_modules/anymatch/LICENSE 784 B
- scripts/node_modules/anymatch/package.json 904 B
- scripts/node_modules/anymatch/README.md 3.9 KB
- scripts/node_modules/array-flatten/array-flatten.js 1.2 KB runs code
- scripts/node_modules/array-flatten/LICENSE 1.1 KB
- scripts/node_modules/array-flatten/package.json 879 B
- scripts/node_modules/array-flatten/README.md 1.2 KB
- scripts/node_modules/binary-extensions/binary-extensions.json 2.1 KB
- scripts/node_modules/binary-extensions/binary-extensions.json.d.ts 87 B runs code
- scripts/node_modules/binary-extensions/index.d.ts 249 B runs code
- scripts/node_modules/binary-extensions/index.js 54 B runs code
- scripts/node_modules/binary-extensions/license 1.1 KB
- scripts/node_modules/binary-extensions/package.json 739 B
- scripts/node_modules/binary-extensions/readme.md 541 B
- scripts/node_modules/body-parser/HISTORY.md 16 KB
- scripts/node_modules/body-parser/index.js 2.6 KB runs code
- scripts/node_modules/body-parser/lib/read.js 4.2 KB runs code
- scripts/node_modules/body-parser/lib/types/json.js 5.2 KB runs code
- scripts/node_modules/body-parser/lib/types/raw.js 1.8 KB runs code
- scripts/node_modules/body-parser/lib/types/text.js 2.2 KB runs code
- scripts/node_modules/body-parser/lib/types/urlencoded.js 6.1 KB runs code
- scripts/node_modules/body-parser/LICENSE 1.1 KB
- scripts/node_modules/body-parser/package.json 1.4 KB
- scripts/node_modules/body-parser/README.md 19 KB
- scripts/node_modules/braces/index.js 4.3 KB runs code
- scripts/node_modules/braces/lib/compile.js 1.5 KB runs code
- scripts/node_modules/braces/lib/constants.js 1.6 KB runs code
- scripts/node_modules/braces/lib/expand.js 2.7 KB runs code
- scripts/node_modules/braces/lib/parse.js 6.7 KB runs code
- scripts/node_modules/braces/lib/stringify.js 708 B runs code
- scripts/node_modules/braces/lib/utils.js 2.5 KB runs code
- scripts/node_modules/braces/LICENSE 1.1 KB
- scripts/node_modules/braces/package.json 1.6 KB
- scripts/node_modules/braces/README.md 21 KB
- scripts/node_modules/bytes/History.md 1.7 KB
- scripts/node_modules/bytes/index.js 3.5 KB runs code
- scripts/node_modules/bytes/LICENSE 1.1 KB
- scripts/node_modules/bytes/package.json 959 B
- scripts/node_modules/bytes/Readme.md 4.7 KB
- scripts/node_modules/call-bind-apply-helpers/.eslintrc 232 B
- scripts/node_modules/call-bind-apply-helpers/.github/FUNDING.yml 594 B
- scripts/node_modules/call-bind-apply-helpers/.nycrc 139 B
- scripts/node_modules/call-bind-apply-helpers/actualApply.d.ts 23 B runs code
- scripts/node_modules/call-bind-apply-helpers/actualApply.js 280 B runs code
- scripts/node_modules/call-bind-apply-helpers/applyBind.d.ts 614 B runs code
- scripts/node_modules/call-bind-apply-helpers/applyBind.js 264 B runs code
- scripts/node_modules/call-bind-apply-helpers/CHANGELOG.md 1.9 KB
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.
- 5d ago Changed · -60 lines · +9 tokens per session 6ee10d1481b8
- 26d ago Changed · +35 lines a32d22553547
- 1mo ago First seen · 251 lines · 37 tokens per session scan A 74edf03ea6d2
brainstorming is a skill published in the GitHub repository guanyang/open-agent-hub (979 stars, last pushed 3d ago), licensed MIT. It adds 46 tokens to every session and 2,300 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to brainstorming, differing in 0 lines, and is treated as a copy.
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