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 nansen-ai/nansen-cli --skill nansen-perp-trader-profilegit clone --depth 1 https://github.com/nansen-ai/nansen-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/nansen-ai/nansen-cli/nansen-perp-trader-profile)<a href="https://agentmods.dev/skills/nansen-ai/nansen-cli/nansen-perp-trader-profile"><img src="https://agentmods.dev/badge/skills/nansen-ai/nansen-cli/nansen-perp-trader-profile/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/nansen-ai/nansen-cli/nansen-perp-trader-profile"><img src="https://agentmods.dev/badge/skills/nansen-ai/nansen-cli/nansen-perp-trader-profile.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- 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 | $0.00032 | $0.00310 |
| Opus 5 | $0.00016 | $0.00155 |
| Sonnet 5 | $0.00006 | $0.00062 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
nansen-perp-trader-profile 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 9d 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.
What it actually says
Perp Trader
Answers: "What is this perp trader doing? What are their positions and track record?"
ADDR=<address>
nansen research profiler labels --address $ADDR --chain ethereum
# → label, category (identity, SM labels)
nansen research profiler perp-positions --address $ADDR
# → asset_positions, margin_summary_account_value_usd, margin_summary_total_margin_used_usd
nansen research profiler perp-trades --address $ADDR --days 7 --limit 20
# → timestamp, token_symbol, side, action (Open/Close/Reduce), price, size, value_usd, closed_pnl, fee_usd
nansen research perp leaderboard --days 7 --limit 50
# → trader_address, total_pnl, roi, account_value (check if ADDR appears)
Cross-reference perp-trades with perp-positions to see if the trader is scaling in/out. Leaderboard shows relative standing.
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.
- 9d ago First seen · 40 lines · 32 tokens per session scan A 9671899ad787
nansen-perp-trader-profile is a skill published in the GitHub repository nansen-ai/nansen-cli (135 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 310 once invoked, about $0.0002 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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