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.
npx skills add krakenfx/kraken-cli --skill kraken-basis-tradinggit clone --depth 1 https://github.com/krakenfx/kraken-cliWrote 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.
[](https://agentmods.dev/skills/krakenfx/kraken-cli/kraken-basis-trading)<a href="https://agentmods.dev/skills/krakenfx/kraken-cli/kraken-basis-trading"><img src="https://agentmods.dev/badge/skills/krakenfx/kraken-cli/kraken-basis-trading/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/krakenfx/kraken-cli/kraken-basis-trading"><img src="https://agentmods.dev/badge/skills/krakenfx/kraken-cli/kraken-basis-trading.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00020 | $0.00806 |
| Opus 5 | $0.00010 | $0.00403 |
| Sonnet 5 | $0.00004 | $0.00161 |
| Haiku 4.5 | $0.00002 | $0.00081 |
Grade A, and why
kraken-basis-trading scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
kraken-basis-trading
Use this skill for:
- identifying positive basis (futures premium over spot)
- entering delta-neutral positions (long spot, short futures)
- monitoring basis convergence
- closing both legs when basis narrows or contracts expire
Core Concept
When futures trade at a premium to spot (positive basis), you can buy spot and sell futures for the same notional amount. The profit comes from basis convergence as the contract approaches expiry, or from collecting funding on perpetuals. The position is market-neutral: price movement does not affect P&L, only the spread does.
Basis Calculation
SPOT=$(kraken ticker BTCUSD -o json 2>/dev/null | jq -r '.[].last_price')
FUTURES=$(kraken futures ticker PF_XBTUSD -o json 2>/dev/null | jq -r '.ticker.last')
BASIS=$(echo "scale=4; ($FUTURES - $SPOT) / $SPOT * 100" | bc)
echo "Basis: ${BASIS}%"
A positive basis means futures are more expensive than spot (contango). A negative basis means futures are cheaper (backwardation).
Entry (Long Spot + Short Futures)
- Check spot price and futures price.
- Ensure the basis is attractive (e.g., > 0.5% annualized).
- Calculate matched position sizes.
- Execute both legs (requires human approval):
# Long spot
kraken order buy BTCUSD 0.01 --type limit --price $SPOT -o json 2>/dev/null
# Short futures (matched notional)
kraken futures order sell PF_XBTUSD 1 --type limit --price $FUTURES -o json 2>/dev/null
Monitoring
Watch basis convergence:
# Periodic check
kraken ticker BTCUSD -o json 2>/dev/null
kraken futures ticker PF_XBTUSD -o json 2>/dev/null
Check positions:
kraken balance -o json 2>/dev/null
kraken futures positions -o json 2>/dev/null
Exit
Close both legs when basis narrows to target:
# Sell spot
kraken order sell BTCUSD 0.01 --type market -o json 2>/dev/null
# Close futures short
kraken futures order buy PF_XBTUSD 1 --reduce-only -o json 2>/dev/null
Risk Considerations
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.
- 11d ago First seen · 94 lines · 20 tokens per session scan A f19ec7ff6d2d
kraken-basis-trading is a skill published in the GitHub repository krakenfx/kraken-cli (714 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 806 once invoked, about $0.0001 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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