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 MatrixFounder/Agentic-development --skill brainstorminggit clone --depth 1 https://github.com/MatrixFounder/Agentic-developmentWrote 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/matrixfounder/agentic-development/brainstorming)<a href="https://agentmods.dev/skills/matrixfounder/agentic-development/brainstorming"><img src="https://agentmods.dev/badge/skills/matrixfounder/agentic-development/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/matrixfounder/agentic-development/brainstorming"><img src="https://agentmods.dev/badge/skills/matrixfounder/agentic-development/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 | $0.00048 | $0.03669 |
| Opus 5.5 | $0.00019 | $0.01468 |
| Sonnet 5.5 | $0.00010 | $0.00734 |
| Haiku 4.5 | $0.00005 | $0.00367 |
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 13d 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 — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Universal Brainstorming Protocol
Purpose
Bridge the gap between a vague user intent ("Make it pop", "I need a referral system") and a concrete, actionable plan. This skill doesn't just clarify requirements — it actively generates ideas, helps the user evaluate trade-offs, and converges on a confirmed design before any code is written.
Red Flags (Anti-Rationalization)
STOP and READ THIS if you are thinking:
- "I'll just start coding, the requirements are clear enough" → WRONG. Even "clear" tasks have hidden assumptions. Validate first — rework costs 3x more than upfront clarification.
- "I'll skip idea generation and go straight to the obvious solution" → WRONG. The obvious solution is often the first one, not the best one. Generate at least 3 options for MEDIUM/COMPLEX tasks.
- "The user didn't ask for alternatives, so I'll just propose one" → WRONG. Brainstorming means expanding the solution space. Always present options with trade-offs.
- "I can't visualize this without a whiteboard" → WRONG. Text-based visualization is always possible. Pick the form with Step 0 of
mermaid-authoring-guidelines: a list, a table, ASCII or Mermaid. - "The user ignored my question, I'll guess" → WRONG. Don't guess on ambiguous requirements. Restate why the answer matters: "To avoid breaking X, I need to know Y."
- "This is too simple for a full brainstorm" → OK, but state it explicitly: "This is trivial — I propose X. Proceed?" Never silently skip the process.
Capabilities
- Classify task complexity (Trivial / Medium / Complex) and adapt workflow depth
- Generate diverse ideas using structured methodologies (SCAMPER, How Might We, Inversion, Analogy)
- Visualize architectures and flows (form chosen by Step 0 of
mermaid-authoring-guidelines) - Facilitate diverge → converge cycles for open-ended problems
- Prioritize options using Impact/Effort analysis or criteria-based scoring
- Produce appropriate output artifacts (Design Doc, Strategy Doc, Ideas Board, Technical Spec)
- Handle both technical (architecture, API design) and non-technical (naming, strategy, UX) brainstorms
What ships with it
4 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.
- 13d ago Changed · +2 lines 915a89ad4a0b
- 1mo ago Changed · +158 lines · +18 tokens per session 77773b8781e9
- 1mo ago First seen · 82 lines · 30 tokens per session scan A 474728fb2185
brainstorming is a skill published in the GitHub repository MatrixFounder/Agentic-development (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 48 tokens to every session and 3,669 once invoked, about $0.0002 per session on Opus 5.5. 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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