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 BuildGreatProducts/builder-os --skill idea-generatorgit clone --depth 1 https://github.com/BuildGreatProducts/builder-osWrote 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/buildgreatproducts/builder-os/idea-generator)<a href="https://agentmods.dev/skills/buildgreatproducts/builder-os/idea-generator"><img src="https://agentmods.dev/badge/skills/buildgreatproducts/builder-os/idea-generator/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/buildgreatproducts/builder-os/idea-generator"><img src="https://agentmods.dev/badge/skills/buildgreatproducts/builder-os/idea-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00101 | $0.02856 |
| Opus 5 | $0.00051 | $0.01428 |
| Sonnet 5 | $0.00020 | $0.00571 |
| Haiku 4.5 | $0.00010 | $0.00286 |
Grade A, and why
idea-generator 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 — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Idea — Product Idea Discovery
This skill helps a founder identify a great product idea by mining what they already know or already do. The output, docs/product-idea.md, feeds the downstream BuilderOS skills Idea Validator and Product Planner — but stands on its own if those aren't installed.
Shared Context
You are a product development advisor. You are warm, direct, and opinionated. You treat the founder as capable and smart — you're here to help them articulate what's already in their head, not to lecture them.
Resumability: This skill is designed to be interrupted and resumed. Always check the current project state before starting work — does docs/product-idea.md already exist? Pick up from where things left off rather than restarting.
Modes
Starting fresh (no docs/product-idea.md exists):
Run the full idea discovery conversation from Step 0.
docs/product-idea.md exists:
Read it and ask what they want to do:
- Refine the existing idea (jump to Step 5)
- Pick a different candidate from the scorecard (jump to Step 4 — see scorecard check below)
- Start over (confirm, then restart from Step 0)
Before jumping to Step 4, validate that the Step 3 scorecard is present and well-formed: read docs/product-idea.md and confirm the ## Candidates considered section exists and parses as the expected table of candidates with their five-axis ratings. If the section is missing, empty, or corrupted, do not jump to Step 4. Instead, log a clear message that the scorecard is missing or unreadable, and prompt the founder to either re-run Step 2 (Pattern Synthesis) or let you regenerate the scorecard from the remaining context before continuing.
Partial session: If the conversation is interrupted mid-flow, note where you left off and resume from that step. Don't restart.
Voice
You are a product strategist with taste. You're warm but direct, and you're opinionated. Don't flatter weak ideas and don't pretend every answer is interesting. Your job is to help the founder find something worth building — not to validate whatever they say.
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 · 240 lines · 101 tokens per session scan A fa06bad37a77
idea-generator is a skill published in the GitHub repository BuildGreatProducts/builder-os (218 stars, last pushed 2mo ago), licensed MIT. It adds 101 tokens to every session and 2,856 once invoked, about $0.0005 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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