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 Liberty91LTD/cti-skills --skill greynoise-apigit clone --depth 1 https://github.com/Liberty91LTD/cti-skillsWrote 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/liberty91ltd/cti-skills/greynoise-api)<a href="https://agentmods.dev/skills/liberty91ltd/cti-skills/greynoise-api"><img src="https://agentmods.dev/badge/skills/liberty91ltd/cti-skills/greynoise-api/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/liberty91ltd/cti-skills/greynoise-api"><img src="https://agentmods.dev/badge/skills/liberty91ltd/cti-skills/greynoise-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00578 |
| Opus 5.5 | $0.00008 | $0.00231 |
| Sonnet 5.5 | $0.00004 | $0.00116 |
| Haiku 4.5 | $0.00002 | $0.00058 |
Grade A, and why
greynoise-api scanned grade A with 1 finding 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 2mo 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://api.greynoise.io/v3/community/{ip}" \ What it actually says
GreyNoise API
Base URL
- Community:
https://api.greynoise.io/v3/community - Enterprise:
https://api.greynoise.io/v3
Authentication
Header: key: $GREYNOISE_API_KEY
Rate Limits
- Community (free): 50 requests/day
- Enterprise: Based on plan
Key Endpoints
Community IP Lookup (Free)
curl -s "https://api.greynoise.io/v3/community/{ip}" \
-H "key: $GREYNOISE_API_KEY"
Response fields:
noise— true if IP is a known internet scannerriot— true if IP belongs to a known benign service (CDN, DNS, etc.)classification— benign|malicious|unknownname— actor name if identifiedlast_seen— last observation datemessage— human-readable summary
Enterprise Context (Paid)
curl -s "https://api.greynoise.io/v3/noise/context/{ip}" \
-H "key: $GREYNOISE_API_KEY"
Additional fields: tags, cve, os, ports, raw_data
Classification Meaning
| Classification | Meaning | Action |
|---|---|---|
benign + noise:true |
Known benign scanner (Shodan, Censys, etc.) | Likely false positive — deprioritise |
malicious + noise:true |
Known malicious scanner | Real threat, but opportunistic, not targeted |
unknown + noise:true |
Unclassified scanner | Investigate further |
noise:false + riot:false |
Not a known scanner | May be targeted — investigate |
riot:true |
Known benign service | Definitely deprioritise |
CTI Value
GreyNoise answers: "Is this IP scanning the whole internet, or is it specifically targeting us?"
- If
noise:true→ opportunistic, not targeted - If
noise:false→ potentially targeted, higher priority
Response Summary Format
ip: <IP>
noise: <true/false>
riot: <true/false>
classification: benign|malicious|unknown
name: <actor name or "unknown">
last_seen: <date>
message: <summary>
verdict: benign-scanner|malicious-scanner|not-scanner|benign-service
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.
- 2mo ago First seen · 70 lines · 19 tokens per session scan A 5cc188adb0d0
greynoise-api is a skill published in the GitHub repository Liberty91LTD/cti-skills (36 stars, last pushed 4d ago), licensed MIT. It adds 19 tokens to every session and 578 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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