Huntable-CTI-Studio: Skill for Claude Code

.claude/skills/add-source/SKILL.md

add-source is a skill for Claude Code from dfirtnt/Huntable-CTI-Studio. It costs 69 tokens per session (1,370 once invoked), scanned A, original, MIT.

A setup process for adding a new cybersecurity intelligence source to Huntable CTI Studio. A source can provide articles through an RSS feed, which is a machine-readable stream of new posts, or through web-page scraping.

In plain words
What is it for?
Use it to configure a blog or website in the source list, discover or validate its feed, and set the rules for finding article content.
Why use it?
It avoids manually guessing the URLs, domains, article patterns, and page fields needed for reliable article collection.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is dfirtnt/Huntable-CTI-Studio's own configuration. It tells Claude Code how to work on Huntable-CTI-Studio itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Huntable-CTI-Studio configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dfirtnt/Huntable-CTI-Studio. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dfirtnt/Huntable-CTI-Studio/main/.claude/skills/add-source/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dfirtnt/Huntable-CTI-Studio

Made for: Claude Code.

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.

agentmods badge for add-source

README.md
[![agentmods](https://agentmods.dev/badge/skills/dfirtnt/huntable-cti-studio/add-source/github.svg)](https://agentmods.dev/skills/dfirtnt/huntable-cti-studio/add-source)
Your own site
<a href="https://agentmods.dev/skills/dfirtnt/huntable-cti-studio/add-source"><img src="https://agentmods.dev/badge/skills/dfirtnt/huntable-cti-studio/add-source/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.

agentmods 80×15 button for add-source

Your own site · 80×15
<a href="https://agentmods.dev/skills/dfirtnt/huntable-cti-studio/add-source"><img src="https://agentmods.dev/badge/skills/dfirtnt/huntable-cti-studio/add-source.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,370 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00069 $0.01370
Opus 5 $0.00034 $0.00685
Sonnet 5 $0.00014 $0.00274
Haiku 4.5 $0.00007 $0.00137

Measured 10d ago against content hash 0ccbf7c6ae56, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

add-source 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s http://localhost:8001/api/health/ingestion | jq '.ingestion.source_breakdown[] | select(.source_name == "{Source Name}") | {name: .source_name, total: .articles_count}'
.claude/skills/add-source/SKILL.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Source

This skill adds a new CTI intelligence source to config/sources.yaml and syncs it to the database. It handles both RSS-based and scraping-only sources.

Workflow

Step 1 — Gather source information

Collect from the user (ask if not provided):

Field Required Example
Blog/site URL Yes https://www.vmray.com/blog/
RSS feed URL No https://www.vmray.com/blog/feed/
Source name Yes (can derive) VMRay Blog

Step 2 — Discover source details

Use web tools to visit the site and determine:

  1. RSS feed discovery — Check for <link rel="alternate" type="application/rss+xml"> in the page head, or try common paths (/feed/, /rss/, /feed.xml, /rss.xml, /atom.xml). If an RSS URL was provided, validate it returns valid XML.
  2. Domain — Extract the domain for the allow list (e.g., vmray.com)
  3. Post URL pattern — Look at article links to derive a post_url_regex (e.g., ^https://www\\.vmray\\.com/blog/.*)
  4. Content selectors — Inspect an article page for appropriate body_selectors, title_selectors, date_selectors, author_selectors if the site needs scraping
  5. Content type — Determine if articles are CTI-relevant (threat intel, malware analysis, detection engineering, vulnerability research)

Step 3 — Generate the source identifier

Create a snake_case id from the source name:

  • VMRay Blogvmray_blog
  • Unit 42 Threat Researchunit42_threat_research

Check config/sources.yaml for duplicate identifiers before proceeding.

Step 4 — Build the YAML entry

Use this template, adapting based on discovery:

# {Source Name} — {brief note about RSS availability}
- id: "{identifier}"
  name: "{Source Name}"
  url: "{site_url}"
  rss_url: {rss_url or null}
  check_frequency: 14400  # 4 hours (system default; reduce to 1800 only after successful validation)
  active: false  # Start disabled; enable manually after verifying articles are ingested correctly
  config:
    allow: ["{domain}"]
    post_url_regex: ["{regex_pattern}"]
    robots:
      enabled: true
      user_agent: "Huntable-CTI-Studio/1.0 (+https://github.com/dfirtnt/Huntable-CTI-Studio)"
      respect_delay: true
      max_requests_per_minute: 10
      crawl_delay: 1.0
    min_content_length: 1500
    title_filter_keywords: ["webinar", "training", "careers", "job posting"]
    rss_only: {true if rss_url and no scraping needed, else false}
    extract:
      prefer_jsonld: true
      title_selectors: ["h1", "meta[property='og:title']::attr(content)"]
      date_selectors:
        - "meta[property='article:published_time']::attr(content)"
        - "time[datetime]::attr(datetime)"
      body_selectors: {discovered selectors or defaults}
      author_selectors: ["meta[name='author']::attr(content)", ".author-name"]
  description: "{one-line description of what intelligence this source provides}"

Read the full file on GitHub · 125 lines

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.

  1. 10d ago First seen · 125 lines · 69 tokens per session scan A 0ccbf7c6ae56

Subscribe to this mod's changes

add-source is a skill published in the GitHub repository dfirtnt/Huntable-CTI-Studio (11 stars, last pushed 2d ago), licensed MIT. It adds 69 tokens to every session and 1,370 once invoked, about $0.0003 per session on Opus 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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