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 krzysztofsurdy/code-virtuoso --skill brainstorminggit clone --depth 1 https://github.com/krzysztofsurdy/code-virtuosoWrote 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/krzysztofsurdy/code-virtuoso/brainstorming)<a href="https://agentmods.dev/skills/krzysztofsurdy/code-virtuoso/brainstorming"><img src="https://agentmods.dev/badge/skills/krzysztofsurdy/code-virtuoso/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/krzysztofsurdy/code-virtuoso/brainstorming"><img src="https://agentmods.dev/badge/skills/krzysztofsurdy/code-virtuoso/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 | $0.00118 | $0.01337 |
| Opus 5 | $0.00059 | $0.00668 |
| Sonnet 5 | $0.00024 | $0.00267 |
| Haiku 4.5 | $0.00012 | $0.00134 |
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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brainstorming
Structured pre-implementation design exploration. Transforms a vague idea into a written spec through focused, one-at-a-time questioning before any code is written, any plan is created, or any architecture is decided. The spec is the deliverable - everything else follows from it.
No code until the spec is written and approved.
When to Use
- The user says "I want to build X" but has no written requirements
- A feature request exists as a sentence or two with no detail
- The user asks "how should I build X" before defining what X actually is
- Someone says "let's brainstorm" or "help me figure this out"
- A problem statement exists but the solution space is unexplored
Quick Start
/brainstorming user authentication for a SaaS app
/brainstorming migrate our monolith to services
/brainstorming # asks what to explore
If $ARGUMENTS is provided, use it as the initial topic and skip straight to Phase 1. If no argument, ask: "What idea, feature, or problem would you like to explore?"
Workflow
This skill uses guided phases - each phase is a separate file loaded one at a time. Every phase ends with a gate where you must wait for user confirmation before proceeding. Do not skip phases or merge them.
| Phase | File | What it covers |
|---|---|---|
| 1 | Intake | Read context, classify maturity, summarize understanding |
| 2 | Divergence | Expand problem space with one-at-a-time questions across 7 categories |
| 3 | Convergence | Narrow to concrete scope, lock must-haves and non-goals |
| 4 | Spec Writing | Write full spec from gathered material, run quality checklist |
| 5 | Approval | Get explicit user approval, hard-gate implementation |
Start by loading Phase 1. After the user confirms each phase, load the next. Never load multiple phases at once. Never skip a phase.
What ships with it
9 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.
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.
- 9d ago First seen · 115 lines · 118 tokens per session scan A 01fe1c535eb2
brainstorming is a skill published in the GitHub repository krzysztofsurdy/code-virtuoso (21 stars, last pushed 3mo ago), licensed MIT. It adds 118 tokens to every session and 1,337 once invoked, about $0.0006 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 2026-08-30.
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