New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Brainstorm

by c0x12c in c0x12c/ai-toolkit

Run a structured brainstorm session for startup ideas. An agent skill from c0x12c/ai-toolkit.

No licenceAuto-check passedAgent Workflows

Install Brainstorm

skills CLI
$ npx skills add c0x12c/ai-toolkit --skill brainstorm -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install c0x12c/ai-toolkit brainstorm --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/brainstorm .claude/skills/brainstorm && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
brainstorm
GitHub stars
106
Token cost
~823 tokens
SKILL.md length
488 words
Files
1
Skills in repo
33
Repo updated
First seen
Licence
None found

At a glance

Run a structured brainstorm session for startup ideas. An agent skill from c0x12c/ai-toolkit.

  • Works in 4 steps: Set the Frame → Generate Ideas (Go Wide) → Gut-Check Filter → …
  • The user wants to explore a space
  • SKILL.md covers When to Use, Process, Interaction Style and Rules, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Brainstorm is an agent skill from c0x12c/ai-toolkit. Run a structured brainstorm session for startup ideas. Takes a theme or problem and generates ideas with quick gut-checks. Use when the user wants to explore a space or generate new ideas.

Its SKILL.md is about 820 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Brainstorming.

When your agent uses it

  • The user wants to explore a space
  • Generate new ideas

Example prompts

  • “/brainstorm”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Set the Frame
  2. Generate Ideas (Go Wide)
  3. Gut-Check Filter
  4. Pick Top 3

What it can do on your machine

Read from SKILL.md and the folder at commit 96b2c9d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Brainstorm loads about 823 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 488 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~823

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 488 words (~823 tokens).

“Turn a vague direction into a list of concrete ideas worth testing.”

— opening of SKILL.md by c0x12c
name
brainstorm

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .codex/skills/brainstorm of c0x12c/ai-toolkit.

Open the folder on GitHubat commit 96b2c9d

Compare with similar skills

Brainstorm next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Brainstorm compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Brainstorm this skillc0x12c/ai-toolkit106—~823Automated safety check: PassNone
Brainstormingxpinjection/test-driven-spring-boot11254 repos~2.6kAutomated safety check: PassMIT
LLM Councilgcpdev/llm-council-skill4611 repos~1kAutomated safety check: NotesMIT
Typesafe AIOpenAgentsInc/openagents4559 repos~2.5kAutomated safety check: PassMIT
Yao Meta Skillyaojingang/yao-meta-skill2.7k—~768Automated safety check: PassMIT
Trellis StartROYIANS/foliq-print-template-designer1356 repos~646Automated safety check: PassMIT

Similar skills

  • Brainstorming

    xpinjection/test-driven-spring-boot

    You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior.

    112 GitHub starsUsed in 54 repos~2.6k tokens
    Agent WorkflowsAuto-check passed

  • LLM Council

    gcpdev/llm-council-skill

    Multi-LLM collaborative brainstorming and planning. An agent skill from gcpdev/llm-council-skill.

    461 GitHub starsUsed in 1 repo~1k tokens
    Agent WorkflowsAuto-check: notes

  • Typesafe AI

    OpenAgentsInc/openagents

    Build AI-powered software with TypeSafe: small units of AI intelligence you can use like programming primitives.

    455 GitHub starsUsed in 9 repos~2.5k tokens
    Agent WorkflowsAuto-check passed

  • Yao Meta Skill

    yaojingang/yao-meta-skill

    Create, improve, or evaluate an existing skill from workflows, prompts, SOPs, scripts.

    2.7k GitHub stars~768 tokensUpdated 1 mo ago
    Agent WorkflowsAuto-check passed

  • Trellis Start

    ROYIANS/foliq-print-template-designer

    Initializes an AI development session by reading workflow guides, developer identity, git status, active tasks, and project guidelines from .trellis/.

    135 GitHub starsUsed in 6 repos~646 tokens
    Agent WorkflowsAuto-check passed

  • Brainstorming Before Building

    jnMetaCode/superpowers-zh

    Turns a rough idea into an approved design before any code is written, sorting the request into spike, bounded or architectural and enforcing an approval gate.

    8.3k GitHub stars~1.8k tokensUpdated 4 days ago
    Agent WorkflowsAuto-check passed

More from c0x12c/ai-toolkit

All 33 skills in this repo

  • UI UX Pro Max

    c0x12c/ai-toolkit

    UI/UX design intelligence with searchable style, palette, typography, and chart databases.

    106 GitHub stars~2.1k tokensUpdated 3 mo ago
    Auto-check passed

  • API Endpoint Creator

    c0x12c/ai-toolkit

    Creates RPC-style endpoint following layered architecture (Controller → Manager → Repository).

    106 GitHub stars~3.3k tokensUpdated 3 mo ago
    Auto-check passed

  • Backend API Design

    c0x12c/ai-toolkit

    Design RPC-style APIs with layered architecture (Controller → Manager → Repository).

    106 GitHub stars~814 tokensUpdated 3 mo ago
    Auto-check passed

  • CI CD Patterns

    c0x12c/ai-toolkit

    CI/CD pipeline patterns for GitHub Actions, PR automation, and deployment workflows.

    106 GitHub stars~833 tokensUpdated 3 mo ago
    Auto-check passed

  • Content Engine

    c0x12c/ai-toolkit

    Turn one idea into platform-native content for X, LinkedIn, TikTok, YouTube, newsletters.

    106 GitHub stars~986 tokensUpdated 3 mo ago
    Auto-check passed

  • Database Table Creator

    c0x12c/ai-toolkit

    Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests).

    106 GitHub stars~1.1k tokensUpdated 3 mo ago
    Auto-check passed

Categories

Questions about Brainstorm

What does Brainstorm do?

Run a structured brainstorm session for startup ideas. An agent skill from c0x12c/ai-toolkit. Brainstorm is an agent skill from c0x12c/ai-toolkit. Run a structured brainstorm session for startup ideas.

When should I use Brainstorm?

Brainstorm fits situations like: the user wants to explore a space; generate new ideas.

How do I install Brainstorm in Claude Code?

Run `npx skills add c0x12c/ai-toolkit --skill brainstorm -a claude-code`. Or copy the skill folder (.codex/skills/brainstorm in c0x12c/ai-toolkit) into .claude/skills/brainstorm in your project. Claude Code loads it when a task matches its description.

How do I install Brainstorm in Codex?

Run `npx skills add c0x12c/ai-toolkit --skill brainstorm -a codex`. Or copy the skill folder (.codex/skills/brainstorm in c0x12c/ai-toolkit) into .agents/skills/brainstorm in your project. Codex loads it when a task matches its description.

Can I use Brainstorm in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add c0x12c/ai-toolkit --skill brainstorm -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/brainstorm, .gemini/skills/brainstorm, .github/skills/brainstorm and .opencode/skills/brainstorm in your project.

What does Brainstorm need to run?

SKILL.md names no scripts, command-line tools or credentials: Brainstorm is instructions for the agent only.

Does Brainstorm access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Brainstorm safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Brainstorm use?

No licence was found for Brainstorm or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Brainstorm use?

About 823 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Brainstorm?

Skills that share tags, products or a category with Brainstorm: Brainstorming (xpinjection/test-driven-spring-boot, 112 stars), LLM Council (gcpdev/llm-council-skill, 461 stars), Typesafe AI (OpenAgentsInc/openagents, 455 stars) and Yao Meta Skill (yaojingang/yao-meta-skill, 2.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Brainstorm?

c0x12c (a GitHub organization) maintains it in c0x12c/ai-toolkit, which has 106 GitHub stars. The repository holds 33 skills in this directory. The repository was last updated on June 18, 2026.

Source: c0x12c/ai-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.