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-ws-streaminggit 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-ws-streaming)<a href="https://agentmods.dev/skills/krakenfx/kraken-cli/kraken-ws-streaming"><img src="https://agentmods.dev/badge/skills/krakenfx/kraken-cli/kraken-ws-streaming/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-ws-streaming"><img src="https://agentmods.dev/badge/skills/krakenfx/kraken-cli/kraken-ws-streaming.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 | $0.00019 | $0.01109 |
| Opus 5 | $0.00010 | $0.00554 |
| Sonnet 5 | $0.00004 | $0.00222 |
| Haiku 4.5 | $0.00002 | $0.00111 |
Grade A, and why
kraken-ws-streaming scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.
kraken-ws-streaming
Use this skill for:
- streaming live price, trade, and order book data
- monitoring authenticated feeds (executions, balances)
- futures-specific streaming (fills, positions, balances)
- building event-driven agent loops
Output Format
All WebSocket commands emit NDJSON (one JSON object per line) to stdout. Parse line by line:
kraken ws ticker BTC/USD -o json 2>/dev/null | while read -r line; do
echo "$line" | jq -r '.data[0].last // empty'
done
Do not attempt to parse the full stream as a single JSON object.
Spot Public Streams
Ticker (best bid/ask, last price, volume):
kraken ws ticker BTC/USD -o json 2>/dev/null
Ticker with BBO trigger (fires only on best-bid/offer changes):
kraken ws ticker BTC/USD --event-trigger bbo -o json 2>/dev/null
Trades:
kraken ws trades BTC/USD -o json 2>/dev/null
Order book (L2, configurable depth):
kraken ws book BTC/USD --depth 10 -o json 2>/dev/null
OHLC candles:
kraken ws ohlc BTC/USD --interval 1 -o json 2>/dev/null
Instrument metadata:
kraken ws instrument BTC/USD -o json 2>/dev/null
Spot Private Streams (Authenticated)
Execution updates (fills, order state changes):
kraken ws executions -o json 2>/dev/null
Balance updates:
kraken ws balances -o json 2>/dev/null
L3 order book:
kraken ws level3 BTC/USD -o json 2>/dev/null
Futures Streams
Futures ticker:
kraken futures ws ticker PF_XBTUSD -o json 2>/dev/null
Futures trades:
kraken futures ws trades PF_XBTUSD -o json 2>/dev/null
Futures order book:
kraken futures ws book PF_XBTUSD -o json 2>/dev/null
Futures Private Streams (Authenticated)
Fills:
kraken futures ws fills -o json 2>/dev/null
Open orders:
kraken futures ws open-orders -o json 2>/dev/null
Open positions:
kraken futures ws open-positions -o json 2>/dev/null
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.
- 10d ago First seen · 194 lines · 19 tokens per session scan A 2479722fefc1
kraken-ws-streaming is a skill published in the GitHub repository krakenfx/kraken-cli (714 stars, last pushed 1mo ago), licensed MIT. It adds 19 tokens to every session and 1,109 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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