Borrowing it
Nothing to install: this file belongs to HelixDevelopment/code. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/HelixDevelopment/code/main/.specify/extensions/superspec/.specify-dev/agent-commands/claude/speckit-superspec-brainstorm/SKILL.mdgit clone --depth 1 https://github.com/HelixDevelopment/codeWrote 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/helixdevelopment/code/speckit-superspec-brainstorm)<a href="https://agentmods.dev/skills/helixdevelopment/code/speckit-superspec-brainstorm"><img src="https://agentmods.dev/badge/skills/helixdevelopment/code/speckit-superspec-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/helixdevelopment/code/speckit-superspec-brainstorm"><img src="https://agentmods.dev/badge/skills/helixdevelopment/code/speckit-superspec-brainstorm.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 | $0.00026 | $0.00534 |
| Opus 5 | $0.00013 | $0.00267 |
| Sonnet 5 | $0.00005 | $0.00107 |
| Haiku 4.5 | $0.00003 | $0.00053 |
Grade A, and why
speckit-superspec-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 5d 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 — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
speckit.superspec.brainstorm
Deep-dive edge cases and refine a spec document using brainstorming skills.
Usage
/speckit.superspec.brainstorm [spec-path] [focus-topic]
Example: /speckit.superspec.brainstorm specs/001-develop/spec.md "Discuss the Edge Cases in the requirements document and confirm how to resolve these scenarios."
Process
- Read the target spec file
- Read the constitution for project constraints
- Superpowers detection: Check for
brainstormingskill- If found: Read the brainstorming SKILL.md and follow its questioning protocol, adapting all outputs to the target spec file
- If not found: Use the built-in 5-category questioning protocol:
- Boundary conditions (min/max, empty states, edge-of-range)
- Error scenarios (service down, malformed input, partial failures)
- Scale & performance (load, concurrency, rate limits)
- Security & privacy (injection, authorization, data exposure)
- User experience (confusion points, accessibility, unintended usage)
- Ask questions one at a time, preferring multiple choice format
- After each answer, update the spec:
- New requirements → add to Functional Requirements
- Resolved questions → update Open Questions table
- New edge cases → add to Edge Cases section
- When the user confirms the spec is ready, update the "Brainstorm Log" with a dated summary of insights discovered
Output
Updated spec file with refined edge cases, resolved open questions, and brainstorm log entries.
Iteration
This command can be run multiple times on the same spec. Each session appends to the brainstorm log and skips previously explored categories.
Superpowers Adaptation
When using the brainstorming skill, adapt its outputs:
- Design documents → fold insights back into the existing
spec.md - Output location → write to
specs/NNN/spec.md(notdocs/superpowers/)
See .specify/extensions/superspec/references/superpowers-bridge.md for full adaptation rules.
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.
- 5d ago First seen · 59 lines · 26 tokens per session scan A 9e630aff55f1
speckit-superspec-brainstorm is a skill published in the GitHub repository HelixDevelopment/code (2 stars, last pushed 3d ago), licensed MIT. It adds 26 tokens to every session and 534 once invoked, about $0.0001 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 2026-09-04.
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