correlate-ioc

correlate-ioc is a skill for Claude Code, Codex from dandye/ai-runbooks. It costs 48 tokens per session (659 once invoked), scanned A, original, Apache-2.0.

A security lookup that checks whether indicators of compromise—clues such as suspicious IP addresses or domains—appear in past alerts or investigation cases.

In plain words
What is it for?
Use it to search security alerts and cases for one or more indicators, within a chosen lookback period and optional case-status filter.
Why use it?
It connects a suspicious indicator to earlier security activity, helping investigators understand whether it is isolated or part of a wider incident.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to search security alerts and cases for one or more indicators, within a chosen lookback period and optional case-status filter.

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Install with agentmods
npx agentmods add skills/dandye/ai-runbooks/correlate-ioc
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 dandye/ai-runbooks --skill correlate-ioc
Clone the repo
git clone --depth 1 https://github.com/dandye/ai-runbooks

Made for: Claude Code, Codex.

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 correlate-ioc

README.md
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Your own site
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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 correlate-ioc

Your own site · 80×15
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Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 659 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. 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 $0.00048 $0.00659
Opus 5 $0.00024 $0.00329
Sonnet 5 $0.00010 $0.00132
Haiku 4.5 $0.00005 $0.00066

Measured 11d ago against content hash af66191e61db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

correlate-ioc 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 11d 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/correlate-ioc/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Correlate IOC Skill

Check for existing SIEM alerts and cases related to specific Indicators of Compromise.

Inputs

  • IOC_LIST - Single IOC or list of IOCs (e.g., ["198.51.100.10", "evil-domain.com"])
  • (Optional) TIME_FRAME_HOURS - Lookback period for SIEM alerts (default: 168 = 7 days)
  • (Optional) SOAR_CASE_FILTER - Additional filter for SOAR cases (e.g., status="OPEN")

Workflow

Step 1: Correlate SIEM Alerts

Search for alerts containing any IOC in the list:

secops-mcp.get_security_alerts(
    query=IOC_based_query,
    hours_back=TIME_FRAME_HOURS
)

Store summary in RELATED_SIEM_ALERTS:

  • Alert count
  • Alert types/names
  • Severity distribution
  • Affected assets

Step 2: Correlate Cases

Search for cases containing any IOC:

secops-soar.list_cases(
    filter=IOC_based_filter + SOAR_CASE_FILTER
)

Store summary in RELATED_SOAR_CASES:

  • Case IDs and names
  • Case status
  • Case priority

Required Outputs

After completing this skill, you MUST report these outputs:

Output Description
RELATED_SIEM_ALERTS Summary of SIEM alerts related to the IOC(s)
RELATED_CASES Summary of cases related to the IOC(s)
CORRELATION_STATUS Success/failure status of the correlation
MALICIOUS_CONFIDENCE Derived confidence based on alert history: high, medium, low, or none

Use Cases

  1. Before Investigation - Check if IOC is already under investigation
  2. During Enrichment - Understand internal activity for an IOC
  3. Threat Hunt - Find all alerts/cases related to campaign indicators
  4. Incident Response - Identify scope of compromise across cases

Correlation Summary Template

IOC Correlation Summary for [IOC_LIST]:

SIEM Alerts (last [TIME_FRAME_HOURS] hours):
- Total alerts: [count]
- Alert types: [list]
- Affected hosts: [list]

Related Cases:
- Open cases: [count] - [IDs]
- Closed cases: [count]
- Related investigations: [summary]

Read the full file on GitHub · 91 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. 11d ago First seen · 91 lines · 48 tokens per session scan A af66191e61db

Subscribe to this mod's changes

correlate-ioc is a skill published in the GitHub repository dandye/ai-runbooks (124 stars, last pushed 27d ago), licensed Apache-2.0. It adds 48 tokens to every session and 659 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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