brainstorming

brainstorming is a skill for Claude Code, Codex from yimwoo/hotl-plugin. It costs 33 tokens per session (2,731 once invoked), scanned A, original, MIT.

A planning guide for turning a feature idea into an agreed design before coding begins. It asks clarifying questions and records the intended outcome, checks, and decision rules.

In plain words
What is it for?
Use it to explore a feature’s purpose, review relevant project files and design documents, and prepare a design for approval.
Why use it?
It reduces misunderstandings and prevents implementation from starting before the requirements are clear and approved.

Skill for Claude CodeCodex

Part of the hotl plugin — 20 skills, 9 commands, 1 agent, 1 hook shipped together

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/yimwoo/hotl-plugin/brainstorming
Any agent
npx skills add yimwoo/hotl-plugin --skill brainstorming
Clone the repo
git clone --depth 1 https://github.com/yimwoo/hotl-plugin

Made for: Claude Code, Codex.

Or install hotl, the plugin that ships this one along with the rest of its 20 skills, 9 commands, 1 agent, 1 hook.

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/yimwoo/hotl-plugin/brainstorming.svg)](https://agentmods.dev/skills/yimwoo/hotl-plugin/brainstorming)
Your own site
<a href="https://agentmods.dev/skills/yimwoo/hotl-plugin/brainstorming"><img src="https://agentmods.dev/badge/skills/yimwoo/hotl-plugin/brainstorming.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,731 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00033 $0.02731
Opus 5 $0.00016 $0.01366
Sonnet 5 $0.00007 $0.00546
Haiku 4.5 $0.00003 $0.00273

Measured 5d ago against content hash e76db7491a41, 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 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.

skills/brainstorming/SKILL.md · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HOTL Brainstorming

Overview

Turn ideas into designs with explicit HOTL contracts. Ask questions one at a time. Present design for approval before any implementation.

Process

  1. Explore context (cheap preflight first)

    Phase 1 — Cheap preflight (Glob only, current project directory):

    • If user's message references a doc path → read it
    • Check for canonical design docs in docs/designs/*.md
    • Check for legacy design docs in docs/plans/*.md
    • Check for source code, config manifests, or project-specific config files
    • "Relevant context" means: design docs, source code, configuration manifests, or project-specific config. Files like README.md, .gitignore, LICENSE, and scaffolding boilerplate do not count.

    Phase 2 — Branch on result:

    • Relevant local context found: Read the most recent 1-2 design docs from canonical or legacy locations, inspect only relevant in-project files, and optionally review recent commits (only if the directory is a git repo).
    • No relevant local context found: State: "This appears to be a greenfield or effectively empty project, so I'm skipping deep context scanning and moving to clarifying questions." Proceed directly to step 2.

    Hard rule: Never scan parent directories, sibling folders, or workspace-wide paths unless the user explicitly provides a path.

  2. Determine scope — decide between feature, phase, or initiative before the clarifying-questions loop. Scope shapes every downstream step: output path, contract structure, depth of inquiry.

    Scope choices:

    • feature — one feature, one bug fix, one refactor. Output: docs/designs/YYYY-MM-DD-<slug>-design.md (dated, tactical).
    • phase — one slice of a multi-phase initiative. Same output family as feature: docs/designs/YYYY-MM-DD-phase-N-<slug>-design.md.
    • initiative — a multi-phase project (v1/v2, platform migration, enterprise rebuild). Output: docs/designs/<topic>.md (undated, durable, strategic).

Read the full file on GitHub · 175 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. 5d ago First seen · 175 lines · 33 tokens per session scan A e76db7491a41

Subscribe to this mod's changes

brainstorming is a skill published in the GitHub repository yimwoo/hotl-plugin (26 stars, last pushed 2mo ago), licensed MIT. It adds 33 tokens to every session and 2,731 once invoked, about $0.0002 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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