Agent skill

Yoink

by alsk1992 in alsk1992/CloddsBot

Play Yoink capture-the-flag game on Base - yoink the flag, check scores, compete for trophy

MITAuto-check passedSecurity

Install Yoink

skills CLI
$ npx skills add alsk1992/CloddsBot --skill yoink -a claude-code

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

GitHub CLI
$ gh skill install alsk1992/CloddsBot yoink --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/alsk1992/CloddsBot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/src/skills/bundled/yoink .claude/skills/yoink && 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
yoink
GitHub stars
2.9k
Token cost
~299 tokens
SKILL.md length
85 words
Files
2
Skills in repo
116
Repo updated
First seen
Licence
MIT

At a glance

Play Yoink capture-the-flag game on Base - yoink the flag, check scores, compete for trophy

  • Works in 5 steps: Yoink the flag - Call yoink() to take… → Cooldown - 10 minutes (600 seconds)… → No self-yoink - You cannot yoink from… → …
  • Tasks that involve Capture the flag
  • SKILL.md covers Contract, Game Rules, Commands and Examples, plus 1 more section
  • Runs TypeScript scripts from its folder; needs PRIVATE_KEY

What it does

Yoink is an agent skill from alsk1992/CloddsBot. Play Yoink capture-the-flag game on Base - yoink the flag, check scores, compete for trophy

Its SKILL.md is about 300 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `index.ts`).

It sits in Security, covering Capture the flag. The repository describes itself as: Open Source AI trading agent that operates autonomously across 1000+ markets - Polymarket, Kalshi, Binance, Hyperliquid, Solana DEXs, 5 EVM chains. Scans for edge, executes… The licence is MIT.

When your agent uses it

  • Tasks that involve Capture the flag

Example prompts

  • “/yoink”

Requirements

  • Node.js
  • A credential in PRIVATE_KEY

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Yoink the flag - Call yoink() to take the flag
  2. Cooldown - 10 minutes (600 seconds) between yoinks
  3. No self-yoink - You cannot yoink from yourself
  4. Accumulate time - While holding the flag, your time score increases
  5. Trophy - Player with most yoinks holds the trophy

What it can do on your machine

Read from SKILL.md and the folder at commit c930628. 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

    Ships script files (TypeScript), which the agent can run.

    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 these keys or tokens, usually read from environment variables:

    • PRIVATE_KEY

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

Context cost

Yoink loads about 299 tokens when it runs. Until then it costs about 24 tokens; SKILL.md has 85 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~24
When it runs · the whole SKILL.md, loaded when a task matches
~299

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

The full file from alsk1992/CloddsBot at commit c930628, republished under its MIT licence (© alsk1992). 85 words, ~299 tokens.

Download SKILL.mdSave it as .claude/skills/yoink/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
yoink
description
Play Yoink capture-the-flag game on Base - yoink the flag, check scores, compete for trophy
command
yoink
emoji
🚩
gates.envs
PRIVATE_KEY

Yoink - Capture the Flag on Base

Play Yoink, an onchain capture-the-flag game on Base. Yoink the flag from the current holder to start your clock.

Contract

0x4bBFD120d9f352A0BEd7a014bd67913a2007a878 on Base (chain ID 8453)

Game Rules

  1. Yoink the flag - Call yoink() to take the flag
  2. Cooldown - 10 minutes (600 seconds) between yoinks
  3. No self-yoink - You cannot yoink from yourself
  4. Accumulate time - While holding the flag, your time score increases
  5. Trophy - Player with most yoinks holds the trophy

Commands

Status
/yoink status                    Current flag holder and game stats
/yoink score <address>           Get player score
/yoink leaderboard               Top yoinkers
Play
/yoink                           Yoink the flag!
/yoink cooldown                  Check your cooldown status

Examples

/yoink status
/yoink score 0x1234...
/yoink

Setup

bash
export PRIVATE_KEY="0x..."  # For yoinking

© alsk1992, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in src/skills/bundled/yoink of alsk1992/CloddsBot.

  • SKILL.md
  • index.ts

Open the folder on GitHubat commit c930628

Compare with similar skills

Yoink 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.

Yoink compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Yoink this skillalsk1992/CloddsBot2.9k—~299Automated safety check: PassMIT
Reverse Flowlingbol088-spec/reverse-flow-skill940—~2.4kAutomated safety check: PassMIT
Ctf Osintljagiello/ctf-skills3.4k1 repos~2.3kAutomated safety check: NotesMIT
Penetration Flowlingbol088-spec/ReiPenFlow222—~1.8kAutomated safety check: PassMIT
Helloctf SkillProbiusOfficial/Hello-CTF4.2k—~387Automated safety check: PassGPL-3.0
Secknowledge SkillPa55w0rd/secknowledge-skill424—~2.7kAutomated safety check: PassNone

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Categories

Questions about Yoink

What does Yoink do?

Play Yoink capture-the-flag game on Base - yoink the flag, check scores, compete for trophy. Yoink is an agent skill from alsk1992/CloddsBot.

When should I use Yoink?

Yoink fits situations like: tasks that involve Capture the flag.

How do I install Yoink in Claude Code?

Run `npx skills add alsk1992/CloddsBot --skill yoink -a claude-code`. Or copy the skill folder (src/skills/bundled/yoink in alsk1992/CloddsBot) into .claude/skills/yoink in your project. Claude Code loads it when a task matches its description.

How do I install Yoink in Codex?

Run `npx skills add alsk1992/CloddsBot --skill yoink -a codex`. Or copy the skill folder (src/skills/bundled/yoink in alsk1992/CloddsBot) into .agents/skills/yoink in your project. Codex loads it when a task matches its description.

Can I use Yoink 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 alsk1992/CloddsBot --skill yoink -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/yoink, .gemini/skills/yoink, .github/skills/yoink and .opencode/skills/yoink in your project.

What does Yoink need to run?

Going by SKILL.md and its folder, Yoink needs TypeScript for the scripts in its folder and credentials named PRIVATE_KEY. Our summary lists: Node.js; A credential in PRIVATE_KEY.

Does Yoink 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 Yoink 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 Yoink use?

Yoink is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Yoink use?

About 299 tokens (SKILL.md is roughly 1.2k 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 Yoink?

Skills that share tags, products or a category with Yoink: Reverse Flow (lingbol088-spec/reverse-flow-skill, 940 stars), Ctf Osint (ljagiello/ctf-skills, 3.4k stars), Penetration Flow (lingbol088-spec/ReiPenFlow, 222 stars) and Helloctf Skill (ProbiusOfficial/Hello-CTF, 4.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Yoink?

alsk1992 (a GitHub user) maintains it in alsk1992/CloddsBot, which has 2,933 GitHub stars. The repository holds 116 skills in this directory. The repository was last updated on October 2, 2026.

Source: alsk1992/CloddsBot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.