brainstorming

brainstorming is a skill for Claude Code, Codex from robconery/chappie. It costs 67 tokens per session (2,095 once invoked), scanned A, original, MIT.

A guided planning process for designing a new software feature. It asks questions, compares solution ideas, and can produce planning documents and verification scripts after approval.

In plain words
What is it for?
Use it to explore a feature, clarify its goals and constraints, choose an approach, create a feature branch, and prepare project artifacts.
Why use it?
It helps turn an unclear feature request into agreed requirements and an implementation plan. The staged questions also surface edge cases and possible failures early.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/robconery/chappie/brainstorming
Any agent
npx skills add robconery/chappie --skill brainstorming
Clone the repo
git clone --depth 1 https://github.com/robconery/chappie

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for brainstorming

README.md
[![agentmods](https://agentmods.dev/badge/skills/robconery/chappie/brainstorming.svg)](https://agentmods.dev/skills/robconery/chappie/brainstorming)
Your own site
<a href="https://agentmods.dev/skills/robconery/chappie/brainstorming"><img src="https://agentmods.dev/badge/skills/robconery/chappie/brainstorming.svg" alt="Measured on agentmods" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,095 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00067 $0.02095
Opus 5 $0.00034 $0.01047
Sonnet 5 $0.00013 $0.00419
Haiku 4.5 $0.00007 $0.00210

Measured 4d ago against content hash 44e5be6e33ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

brainstorming scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **API**: `curl` returns expected status and response shape
.claude/skills/brainstorming/SKILL.md · 270 lines

How it starts

The opening of the file, as written. The whole thing — 270 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are running a structured brainstorming session for a new feature. Follow each phase in order. Do not skip phases. Do not rush to solutions.

Rules

Always as one question at a time!

Phase 1: Explore

Before asking anything, think out loud about the feature. Consider:

  • What problem does it solve and for whom?
  • What are the edges, exceptions, and failure modes?
  • What existing code or systems does it touch?
  • What could go wrong technically and from a user perspective?
  • What might the user not have considered?

Write this exploration out — 3 to 5 paragraphs. Be lateral. Surface non-obvious concerns.


Phase 2: Clarify (3 rounds, one at a time)

Ask clarifying questions to extract detail about both the feature intent and the implementation.

Rules — do not break these:

  • Ask exactly one question. Not two. Not a question with sub-bullets. One.
  • Stop. Wait for the answer. Do not continue until the user replies.
  • Then ask the next single question. Repeat for 3 rounds total.

After all 3 rounds, summarize what you now understand.


Phase 3: Propose (3 rounds, one at a time)

Offer a distinct solution approach. Include:

  • The core idea in 2-3 sentences
  • Key tradeoffs (what it's good at, what it sacrifices)
  • Any notable implementation risks

After presenting, ask: "Want to explore this further, see the next option, or change direction?"

Wait for the user's response before the next round. The user may steer, combine approaches, or call it early.


Phase 4: Verification Design

For the agreed approach, propose specific, deterministic verification steps — one per task that will be in the plan.

Each verification must be:

  • A shell command or script that exits 0 on success, non-zero on failure
  • Runnable without Claude's involvement
  • Specific enough to actually catch regressions

Examples by context:

  • Web app: npm run build exits 0; agent-browser snapshot confirms a key element is present
  • API: curl returns expected status and response shape
  • Data processing: row count matches expected value, column sum within tolerance
  • CLI tool: command runs without error and output matches a fixture

Read the full file on GitHub · 270 lines

Changes

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.

  1. 4d ago First seen · 270 lines · 67 tokens per session scan A 44e5be6e33ef

Subscribe to this mod's changes

brainstorming is a skill published in the GitHub repository robconery/chappie (11 stars, last pushed 5mo ago), licensed MIT. It adds 67 tokens to every session and 2,095 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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