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Agent skill

Kraken Paper Strategy

by krakenfx in krakenfx/kraken-cli

Test strategy logic on paper trading before touching live funds.

MITAuto-check passedTesting & QA

Install Kraken Paper Strategy

skills CLI
$ npx skills add krakenfx/kraken-cli --skill kraken-paper-strategy -a claude-code

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

GitHub CLI
$ gh skill install krakenfx/kraken-cli kraken-paper-strategy --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/krakenfx/kraken-cli.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/kraken-paper-strategy .claude/skills/kraken-paper-strategy && 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
kraken-paper-strategy
GitHub stars
751
Token cost
~637 tokens
SKILL.md length
277 words
Files
1
Skills in repo
59
Repo updated
First seen
Licence
MIT

At a glance

Test strategy logic on paper trading before touching live funds.

  • Works in 3 steps: repeated paper runs with stable behavior → explicit user sign-off → validate checks pass for live order…
  • Tasks that involve Trading and backtesting
  • SKILL.md covers Limitations, Baseline Workflow, Reset Between Runs and Migration Rule
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Kraken Paper Strategy is an agent skill from krakenfx/kraken-cli. Test strategy logic on paper trading before touching live funds.

Its SKILL.md is about 640 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 Testing & QA, covering Trading and backtesting and Test strategy. The repository describes itself as: The first AI-native CLI for trading crypto, stocks, forex, and derivatives. The licence is MIT.

When your agent uses it

  • Tasks that involve Trading and backtesting
  • Tasks that involve Test strategy

Example prompts

  • “/kraken-paper-strategy”

Workflow steps

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

  1. repeated paper runs with stable behavior
  2. explicit user sign-off
  3. validate checks pass for live order payloads

What it can do on your machine

Read from SKILL.md and the folder at commit aa56e59. 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 (its code samples are bash).

    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

Kraken Paper Strategy loads about 637 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 277 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~22
When it runs · the whole SKILL.md, loaded when a task matches
~637

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 krakenfx/kraken-cli at commit aa56e59, republished under its MIT licence (© krakenfx). 277 words, ~637 tokens.

Download SKILL.mdSave it as .claude/skills/kraken-paper-strategy/SKILL.md (or your agent's skills folder).
name
kraken-paper-strategy
description
Test strategy logic on paper trading before touching live funds.
version
1.0.0

kraken-paper-strategy

Use this skill for:

  • validating entry and exit logic on spot markets
  • testing position sizing and simple rebalance loops
  • rehearsing error handling without risk

For futures paper trading (leverage, margin, shorts, liquidation), see kraken futures paper commands. This skill covers spot paper trading only.

Limitations

Paper trading runs locally against live market prices. It simulates fees and slippage but has other limitations.

  • Fees are configurable. A 0.26% taker fee (Kraken Starter tier) is applied by default. Override with --fee-rate at workspace create (fixed for the account's life). Real fees vary by volume tier and maker/taker status. Live maker fees are lower (0.16%).
  • Slippage is configurable. A flat slippage rate can be applied to market orders with --slippage-rate (default: 0.0). Market buys fill at ask * (1 + slippage_rate), sells at bid * (1 - slippage_rate). This is a conservative approximation; real slippage depends on order book depth, size, and volatility.
  • No partial fills or rejection. Paper orders always fill in full immediately. Live orders may partially fill, queue, or be rejected.

When presenting paper results to the user, note that partial fills and order book dynamics are not simulated. If slippage is set to 0.0 (default), remind the user that live market orders will fill at worse prices.

Baseline Workflow

bash
kraken workspace create sandbox --capital 10000 --mode paper --currency USD --slippage-rate 0.001 -o json 2>/dev/null
export KRAKEN_WORKSPACE=sandbox
kraken paper buy BTCUSD 0.01 -o json 2>/dev/null
kraken workspace status -o json 2>/dev/null
kraken paper sell BTCUSD 0.005 --type limit --price 70000 -o json 2>/dev/null
kraken paper orders -o json 2>/dev/null
kraken paper history -o json 2>/dev/null

Reset Between Runs

bash
kraken workspace reset -o json --yes 2>/dev/null

Migration Rule

Only move a strategy to live trading after:

  1. repeated paper runs with stable behavior
  2. explicit user sign-off
  3. --validate checks pass for live order payloads

If you hit a mismatch between what you are trying to do and the CLI's interface or responses — including a mismatch between this skill and the installed CLI version's contract — feel free to submit feedback with kraken feedback.

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

Files

Just SKILL.md in skills/kraken-paper-strategy of krakenfx/kraken-cli.

Open the folder on GitHubat commit aa56e59

Compare with similar skills

Kraken Paper Strategy 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.

Kraken Paper Strategy compared with similar skills
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Kraken Paper Strategy this skillkrakenfx/kraken-cli751—~637Automated safety check: PassMIT
Polymarket Tennislivetennisapi/livetennisapi-mcp152—~3kAutomated safety check: PassMIT
Performance Testingfacioquo/stock-indicators-dotnet1.2k—~1.1kAutomated safety check: PassApache-2.0
Backtraderagiprolabs/claude-trading-skills410—~2.4kAutomated safety check: PassMIT
Polymarket2025Emma/vibe-coding-cn23k1 repos~1.6kAutomated safety check: PassMIT
Polymarket Profilerunesleo/polymarket-toolkit194—~3.7kAutomated safety check: PassMIT

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Categories

Questions about Kraken Paper Strategy

What does Kraken Paper Strategy do?

Test strategy logic on paper trading before touching live funds. Kraken Paper Strategy is an agent skill from krakenfx/kraken-cli. Test strategy logic on paper trading before touching live funds.

When should I use Kraken Paper Strategy?

Kraken Paper Strategy fits situations like: tasks that involve Trading and backtesting; tasks that involve Test strategy.

How do I install Kraken Paper Strategy in Claude Code?

Run `npx skills add krakenfx/kraken-cli --skill kraken-paper-strategy -a claude-code`. Or copy the skill folder (skills/kraken-paper-strategy in krakenfx/kraken-cli) into .claude/skills/kraken-paper-strategy in your project. Claude Code loads it when a task matches its description.

How do I install Kraken Paper Strategy in Codex?

Run `npx skills add krakenfx/kraken-cli --skill kraken-paper-strategy -a codex`. Or copy the skill folder (skills/kraken-paper-strategy in krakenfx/kraken-cli) into .agents/skills/kraken-paper-strategy in your project. Codex loads it when a task matches its description.

Can I use Kraken Paper Strategy 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 krakenfx/kraken-cli --skill kraken-paper-strategy -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/kraken-paper-strategy, .gemini/skills/kraken-paper-strategy, .github/skills/kraken-paper-strategy and .opencode/skills/kraken-paper-strategy in your project.

What does Kraken Paper Strategy need to run?

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

Does Kraken Paper Strategy 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 Kraken Paper Strategy 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 Kraken Paper Strategy use?

Kraken Paper Strategy 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 Kraken Paper Strategy use?

About 637 tokens (SKILL.md is roughly 2.5k 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 Kraken Paper Strategy?

Skills that share tags, products or a category with Kraken Paper Strategy: Polymarket Tennis (livetennisapi/livetennisapi-mcp, 152 stars), Performance Testing (facioquo/stock-indicators-dotnet, 1.2k stars), Backtrader (agiprolabs/claude-trading-skills, 410 stars) and Polymarket (2025Emma/vibe-coding-cn, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Kraken Paper Strategy?

krakenfx (a GitHub organization) maintains it in krakenfx/kraken-cli, which has 751 GitHub stars. The repository holds 59 skills in this directory. The repository was last updated on August 7, 2026.

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