fsc-corporate-info

fsc-corporate-info is a skill for Claude Code from NomaDamas/k-skill. It costs 80 tokens per session (395 once invoked), scanned C, a copy of animal-pharmacy-search, MIT.

A lookup tool for basic company records from South Korea’s Financial Services Commission public-data service. It can find a company’s representative, founding date, industry, and other legal-entity details by company name.

In plain words
What is it for?
Use it to verify company identities, review basic corporate information, or cross-check a business registration number.
Why use it?
It saves you from checking several public sources to confirm who a company is and what it does. If a business registration number is returned, it can also compare it with the number you entered.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the k-skill plugin — 125 skills shipped together

Good fit Use it to verify company identities, review basic corporate information, or cross-check a business registration number.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nomadamas/k-skill/fsc-corporate-info
About the project

k-skill is a collection of skills that lets coding agents handle Korean everyday services, including transport, travel, shopping, messaging, and government websites. Korean users install it to delegate routine tasks to agents such as Claude Code, Codex, and OpenCode. The catalogue entries are individual skills from this collection.

NomaDamas/k-skill · 7,520 stars · on GitHub · k-skill.nomadamas.org

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 NomaDamas/k-skill --skill fsc-corporate-info
Clone the repo
git clone --depth 1 https://github.com/NomaDamas/k-skill

Made for: Claude Code.

Or install k-skill, the plugin that ships this one along with the rest of its 125 skills.

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 fsc-corporate-info

README.md
[![agentmods](https://agentmods.dev/badge/skills/nomadamas/k-skill/fsc-corporate-info/github.svg)](https://agentmods.dev/skills/nomadamas/k-skill/fsc-corporate-info)
Your own site
<a href="https://agentmods.dev/skills/nomadamas/k-skill/fsc-corporate-info"><img src="https://agentmods.dev/badge/skills/nomadamas/k-skill/fsc-corporate-info/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 fsc-corporate-info

Your own site · 80×15
<a href="https://agentmods.dev/skills/nomadamas/k-skill/fsc-corporate-info"><img src="https://agentmods.dev/badge/skills/nomadamas/k-skill/fsc-corporate-info.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 395 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket warn 23 Aug 2026
  • Snyk warn 23 Aug 2026
How audits are shown
Origin 81% copy Near-identical to another mod 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 $0.00080 $0.00395
Opus 5 $0.00040 $0.00198
Sonnet 5 $0.00016 $0.00079
Haiku 4.5 $0.00008 $0.00040

Measured 12d ago against content hash 8001192acee9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

fsc-corporate-info scanned grade C 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 12d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/fsc_corporate_info.py, scripts/test_fsc_corporate_info.py), 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- k-skill:cli-stub — generated by scripts/generate-skill-stubs.js; edit skill.json / instruction.md instead -->
Origin

This is a copy

81% identical to animal-pharmacy-search — 14 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

fsc-corporate-info/SKILL.md · 36 lines

What it actually says

fsc-corporate-info

Get the full instructions (required first step)

Run this and follow its output as the primary instructions for this skill:

npx -y @nomadamas/k-skill@0 instruct fsc-corporate-info

The CLI detects the current runtime (Dolshoi vault/CloakBrowser vs generic) and prints only the applicable instructions, always up to date. Helper files bundled with the CLI are listed by:

npx -y @nomadamas/k-skill@0 files fsc-corporate-info

If npx is unavailable, install Node.js 18+ or follow https://github.com/NomaDamas/k-skill#readme, or read the source instructions at https://github.com/NomaDamas/k-skill/blob/main/fsc-corporate-info/instruction.md.

Hard rules even without the CLI

  • Never execute payment, message/email delivery, final submission, cancellation, or public posting without the user's explicit approval immediately beforehand.
  • Never ask for, print, or store plaintext credentials in chat, files, or shell arguments.
  • Never bypass legal, physical-presence, CAPTCHA, identity-proofing, or electronic-signature boundaries.
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.

  1. 12d ago First seen · 36 lines · 80 tokens per session scan C 8001192acee9

Subscribe to this mod's changes

fsc-corporate-info is a skill published in the GitHub repository NomaDamas/k-skill (7,520 stars, last pushed today), licensed MIT. It adds 80 tokens to every session and 395 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). It is 81% identical to animal-pharmacy-search, differing in 14 lines, and is treated as a copy.

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