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 batteryshark/rekit --skill ioc-extractgit clone --depth 1 https://github.com/batteryshark/rekitWrote 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/batteryshark/rekit/ioc-extract)<a href="https://agentmods.dev/skills/batteryshark/rekit/ioc-extract"><img src="https://agentmods.dev/badge/skills/batteryshark/rekit/ioc-extract/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/batteryshark/rekit/ioc-extract"><img src="https://agentmods.dev/badge/skills/batteryshark/rekit/ioc-extract.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 | $0.00111 | $0.00453 |
| Opus 5.5 | $0.00044 | $0.00181 |
| Sonnet 5.5 | $0.00022 | $0.00091 |
| Haiku 4.5 | $0.00011 | $0.00045 |
Grade A, and why
ioc-extract 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.
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.
What it actually says
IOC Extractor
Pull indicators of compromise out of a file or directory — and defang them so the output is safe to drop into a report. Pure-stdlib, read-only.
When to use
Building a report, or triaging what a sample talks to: run it over source, configs, an extracted archive, or a decompiled tree. It also mines strings out of binaries, so it works on executables too.
What it finds
URLs, IPv4, domains, emails, file hashes (md5/sha1/sha256), .onion addresses,
CVEs, crypto addresses (BTC/ETH), and Windows registry keys.
Everything is defanged in the output — hxxps://evil[.]com/x, 1[.]2[.]3[.]4,
user[@]bad[.]com — so pasting the results can't create a live link or get a URL
auto-fetched. Both the raw value and the defanged form are in the JSON.
Noise control: domains are filtered against a filename-extension blocklist (so
index.js isn't a "domain"), IPs against octet + benign-address checks. It never
resolves, connects to, or validates any indicator.
Usage
rekit run ioc-extract ./decompiled-src
rekit run ioc-extract ./sample.bin --format json
Prerequisites
- python3 ≥ 3.8 — pure stdlib, nothing to vendor.
What ships with it
1 file 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.
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 · 40 lines · 111 tokens per session scan A a9c51a26aa05
ioc-extract is a skill published in the GitHub repository batteryshark/rekit (20 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 111 tokens to every session and 453 once invoked, about $0.0004 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 2026-08-30.
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