intelligence-sharing

intelligence-sharing is a skill for Claude Code from Liberty91LTD/cti-skills. It costs 52 tokens per session (863 once invoked), scanned A, original, MIT.

A security guide to sharing threat information with other organisations through groups, platforms, and standard formats. ISACs are industry-specific sharing communities, MISP is an open-source threat-sharing platform, and TAXII and STIX are exchange standards.

In plain words
What is it for?
It helps plan participation in ISACs and FIRST, use MISP communities and TAXII feeds, publish indicators, and apply sharing labels such as TLP.
Why use it?
It explains how to share useful information while controlling who receives it and what risks the disclosure creates.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit It helps plan participation in ISACs and FIRST, use MISP communities and TAXII feeds, publish indicators, and apply sharing labels such as TLP.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/liberty91ltd/cti-skills/intelligence-sharing
Install

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.

Any agent
npx skills add Liberty91LTD/cti-skills --skill intelligence-sharing
Clone the repo
git clone --depth 1 https://github.com/Liberty91LTD/cti-skills

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 intelligence-sharing

README.md
[![agentmods](https://agentmods.dev/badge/skills/liberty91ltd/cti-skills/intelligence-sharing/github.svg)](https://agentmods.dev/skills/liberty91ltd/cti-skills/intelligence-sharing)
Your own site
<a href="https://agentmods.dev/skills/liberty91ltd/cti-skills/intelligence-sharing"><img src="https://agentmods.dev/badge/skills/liberty91ltd/cti-skills/intelligence-sharing/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 intelligence-sharing

Your own site · 80×15
<a href="https://agentmods.dev/skills/liberty91ltd/cti-skills/intelligence-sharing"><img src="https://agentmods.dev/badge/skills/liberty91ltd/cti-skills/intelligence-sharing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 863 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.00863
Opus 5 $0.00026 $0.00432
Sonnet 5 $0.00010 $0.00173
Haiku 4.5 $0.00005 $0.00086

Measured 10d ago against content hash 4b8d0c53ee3f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

intelligence-sharing 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.

skills/intelligence-sharing/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Intelligence Sharing

Why Share?

Intelligence sharing creates a network effect — threats identified by one organisation protect the entire community. However, sharing must be governed, reciprocal, and risk-managed.

Sharing Models

1. ISACs (Information Sharing and Analysis Centers)

Sector-specific sharing communities.

ISAC Sector URL
FS-ISAC Financial Services fs-isac.com
H-ISAC Healthcare h-isac.org
IT-ISAC Technology it-isac.org
E-ISAC Energy eisac.com
A-ISAC Aviation a-isac.com
Auto-ISAC Automotive automotiveisac.com

Benefits: Sector-relevant intelligence, trusted community, pre-vetted members, established TLP norms.

2. FIRST (Forum of Incident Response and Security Teams)

Global incident response community. Membership-based, includes national CERTs and enterprise security teams.

Sharing via: FIRST mailing lists, TF-CSIRT community, CTI SIG.

3. MISP (Malware Information Sharing Platform)

Open-source threat intelligence platform for sharing IOCs and threat data.

How to share via MISP:

  1. Create an event with appropriate distribution
  2. Add attributes (IOCs) with correct types
  3. Tag with TLP, ATT&CK techniques, and galaxies
  4. Set distribution: Organisation only / Community / Connected communities / All
  5. Publish event

4. STIX/TAXII (Automated Sharing)

Standards for structured intelligence exchange.

  • STIX 2.1: Format for representing intelligence (see stix-bundle skill)
  • TAXII 2.1: Transport protocol for exchanging STIX bundles

TAXII channels:

  • Collections: Server-hosted repositories of STIX objects
  • Channels: Push-based distribution
  • API roots: Discovery endpoints

5. Bilateral/Multilateral Sharing

Direct sharing with trusted partners under agreed terms.

Requirements:

  • Sharing agreement (legal framework)
  • TLP adherence by both parties
  • Secure communication channel
  • Reciprocity expectation

TLP and Sharing

Read the full file on GitHub · 110 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 · 110 lines · 52 tokens per session scan A 4b8d0c53ee3f

Subscribe to this mod's changes

intelligence-sharing is a skill published in the GitHub repository Liberty91LTD/cti-skills (17 stars, last pushed 1mo ago), licensed MIT. It adds 52 tokens to every session and 863 once invoked, about $0.0003 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.