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 coreyhaines31/makerskills --skill business-brainstormgit clone --depth 1 https://github.com/coreyhaines31/makerskillsWrote 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/coreyhaines31/makerskills/business-brainstorm)<a href="https://agentmods.dev/skills/coreyhaines31/makerskills/business-brainstorm"><img src="https://agentmods.dev/badge/skills/coreyhaines31/makerskills/business-brainstorm/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/coreyhaines31/makerskills/business-brainstorm"><img src="https://agentmods.dev/badge/skills/coreyhaines31/makerskills/business-brainstorm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00196 | $0.01747 |
| Opus 5 | $0.00098 | $0.00873 |
| Sonnet 5 | $0.00039 | $0.00349 |
| Haiku 4.5 | $0.00020 | $0.00175 |
Grade A, and why
business-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 11d 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 — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/business-brainstorm — Pressure-test a business idea
Takes a vague idea, runs it through the user's filter, and outputs a structured viability brief. Composes with deep-research (for market) and /domain (for naming).
Step 1 — Capture the idea
Get from the user:
- The idea in 1–2 sentences (the what)
- The reason it's on their mind (the why now)
- Any starting context (a chat where this came up, a tweet that inspired it, a problem they've hit)
If they point at a past chat / doc, load it first. Memory has project_*.md files for in-flight projects — check there before assuming the idea is brand-new.
If the idea is too vague to score, ask 1–2 clarifying questions and stop. Don't pad the brief with assumptions.
Step 2 — Load the framework + personal overlay
Read references/framework.md — the user's filter. Apply each dimension in order.
Also try to load ${MAKERSKILLS_CONFIG:-$HOME/.config/makerskills}/business-brainstorm/portfolio.local.md if it exists — this is where the user lists their real in-flight businesses, properties, audiences, and partners. When present, use it for the "portfolio fit," "distribution," and "opportunity cost" dimensions instead of asking the user to name each one.
Step 3 — Score each dimension
For each of the 9 dimensions in framework.md, give a 1-line take + a verdict (✅ strong / 🟡 OK / ❌ weak / ❓ unknown — needs research).
Don't BS the unknowns. Mark them ❓ and route to deep-research in Step 4.
Step 4 — Trigger research where needed (optional)
If 2+ dimensions are ❓ unknown, offer the user: "Want me to run /deep-research on [topic] before scoring?"
Useful research targets:
- Market size / who pays signal →
/last30days <space>+WebSearch - Competitive landscape → search for "alternatives to X", "X vs Y" pages
- ICP signal → forums / Reddit / X where the audience hangs out
- Pricing benchmarks → look at competitor pricing pages
If the user says yes, run Skill({skill: "deep-research", args: "<topic>"}) and incorporate the brief.
What ships with it
1 file 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.
- 11d ago First seen · 139 lines · 196 tokens per session scan A 82a289a7d548
business-brainstorm is a skill published in the GitHub repository coreyhaines31/makerskills (803 stars, last pushed 6d ago), licensed MIT. It adds 196 tokens to every session and 1,747 once invoked, about $0.0010 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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