What is cti-domain-research?

A research skill for finding cyber threat intelligence, including vulnerabilities, malware analysis, breach reports, and security news, across curated security websites. It can optionally add results to Google NotebookLM, a source-based research service.

Use it to investigate a CVE, malware family, threat actor, breach, or other security topic and collect relevant reports.

It gives security research a defined set of sources instead of relying on a single search result. It also supports different search providers and date limits.

cti-domain-research — Skill for Claude Code by Security-Phoenix-demo

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add Security-Phoenix-demo/security-skills-claude-code

Claude Code

/plugin install phoenix-cti-search

Made for: Claude Code.

Or install phoenix-cti-search, the plugin that ships this one along with the rest of its 1 skill, 1 command.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research/github.svg)](https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research)

Your own site

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/cti-domain-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 189 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,536 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00189	$0.02536
Opus 5.5	$0.00076	$0.01014
Sonnet 5.5	$0.00038	$0.00507
Haiku 4.5	$0.00019	$0.00254

Measured 1mo ago against content hash 1fb159d7b847, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cti-domain-research 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/install.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/phoenix-cti-search/skills/cti-domain-research/SKILL.md · 277 lines

How it starts

The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CTI Domain Research

Structured threat intelligence search across 300+ curated security domains with optional NotebookLM ingestion.

Customization

Configure these settings to personalize your CTI research workflow. All are optional — the skill works with sensible defaults.

Setting	Description	Default	How to Set
Search provider	Which search API to use	Brave Search	`SEARCH_PROVIDER=brave` in `.env`
Brave API key	Your Brave Search API key	— (required)	`BRAVE_SEARCH_API_KEY=...` in `.env`
SerpAPI key	Alternative search provider	—	`SERPAPI_KEY=...` in `.env`
Google CSE key + ID	Alternative search provider	—	`GOOGLE_CSE_KEY=...` + `GOOGLE_CSE_ID=...` in `.env`
NotebookLM notebook ID	Target notebook for `--notebooklm` flag	—	`NOTEBOOKLM_NOTEBOOK_ID=...` in `.env` or `--notebook-id` flag
Default result count	Results per tier	10	`--count N` flag per query
Default recency	How far back to search	90 days	`--since DAYS` flag per query
Custom domains	Add your own security sources	595 built-in	Edit `data/domains.txt` and `data/tier-map.json`

Setup steps:

Copy .env.example to .env in the plugin directory
Add your search API key (Brave recommended — 2,000 free requests/month)
Optionally set your NotebookLM notebook ID
Restart Claude Code

cd ${CLAUDE_PLUGIN_ROOT}
cp .env.example .env
# Edit .env with your API keys

Adding custom domains:

# Add a domain (one per line)
echo "your-security-blog.com" >> data/domains.txt

# Add tier mapping
# Edit data/tier-map.json and add:
# "your-security-blog.com": { "tier": 3, "authority": 70 }

Workflow

1. Parse query + flags
2. Select domain tier(s) based on query type
3. Execute scoped web searches (site: operator per domain batch)
4. Deduplicate + rank results by recency and source authority
5. Extract: title, source, date, summary, key IOCs/TTPs/CVEs mentioned
6. [Optional] Push findings to NotebookLM via connector plugin
7. Return structured CTI brief

Read the full file on GitHub · 277 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

1mo ago First seen · 277 lines · 189 tokens per session scan A 1fb159d7b847

Subscribe to this mod's changes

cti-domain-research is a skill published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (81 stars, last pushed 5d ago), licensed MIT. It adds 189 tokens to every session and 2,536 once invoked, about $0.0008 per session on Opus 5.5. 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 2026-09-11.

Research Security

cti-domain-research next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cti-domain-researchSecurity-Phoenix-demo/security-skills-claude-code	Skill	81	5d ago	MIT	A	189	Claude Code
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code