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 derio-net/super-fr --skill fr-brainstorminggit clone --depth 1 https://github.com/derio-net/super-frWrote 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/derio-net/super-fr/fr-brainstorming)<a href="https://agentmods.dev/skills/derio-net/super-fr/fr-brainstorming"><img src="https://agentmods.dev/badge/skills/derio-net/super-fr/fr-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/derio-net/super-fr/fr-brainstorming"><img src="https://agentmods.dev/badge/skills/derio-net/super-fr/fr-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 | $0.00124 | $0.00925 |
| Opus 5 | $0.00062 | $0.00463 |
| Sonnet 5 | $0.00025 | $0.00185 |
| Haiku 4.5 | $0.00012 | $0.00093 |
Grade A, and why
fr-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 8d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
fr-brainstorming
superpowers:brainstorming, wrapped in isolation. Exploration commands,
spec drafts, and everything downstream happen in the isolation workspace,
so a brainstorm that becomes a build never has to relocate, and a brainstorm
that dies leaves the base repo pristine.
Announce at start: "I'm using fr-brainstorming to design this in isolation."
0. Isolation first — hard gate
Before ANY command — exploration, measurement, cluster reads included; an operator "start with X" never reorders this:
fr isolation up --branch <feature-branch> [--profile <name>]
- Name the branch for the feature now (
feat/<slug>); the worktree, the eventual PR, and cleanup all key off it. The newfeat/<slug>is cut from freshly-fetchedorigin/<default>(#322) — pass--base <ref>only to stack on something else. - No devcontainer profile → HARD STOP — but only in devcontainer mode.
Offer to run the fr-init interview immediately; if the operator declines,
the brainstorm does not proceed. (Under fr-goal, treat it as a blocker:
pause, fr-init, resume.) On a docker-less host that declares
FR_ISOLATION_TARGET=worktree(or in a prepared external container),upsucceeds without a profile — no stop, the worktree is the isolation. - From here on, follow the fr-isolation skill's exec-bridge discipline:
read/edit files in the worktree, run every command through
fr isolation exec -- ....
1. Brainstorm
Run superpowers:brainstorming as usual — understand the context and goal,
explore the codebase (in the worktree), propose approaches, refine into a
design.
- Standalone invocation: fully interactive — ask questions as they arise, section-by-section validation, the normal brainstorming flow.
- Under fr-goal: the batched-Q&A contract applies instead — collect every operator-owned decision and ask ONCE (fr-goal's rules win while it drives).
2. Hand off
The brainstorm's design document becomes the spec
(docs/superpowers/specs/<YYYY-MM-DD-slug>-design.md, committed in the
worktree). Hand off to fr-plan (the fr-plan-override rule already routes
writing-plans there). The isolation workspace stays up — planning and
implementation continue in it; cleanup belongs to whoever finishes the run
(fr isolation down after the PR merges).
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.
- 8d ago First seen · 85 lines · 124 tokens per session scan A 15c0b4bf3a8e
fr-brainstorming is a skill published in the GitHub repository derio-net/super-fr (1 stars, last pushed today), licensed MIT. It adds 124 tokens to every session and 925 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 2026-08-31.
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