skill-creator

skill-creator is a skill for Claude Code, Codex from lofcz/LLMTornado. It costs 22 tokens per session (1,543 once invoked), scanned A, original, MIT.

A workflow for creating Anthropic Skills, which are instruction packages that teach an agent how to perform a particular task. It covers the skill files, supporting resources, validation, and GitHub delivery.

In plain words
What is it for?
Use it to define a skill's triggers and inputs, write its SKILL.md file, add scripts, validate the package, and prepare a GitHub pull request and local copy.
Why use it?
It provides the required information and checks needed to turn an idea into a usable, downloadable skill.

Skill for Claude CodeCodex

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

Good fit Use it to define a skill's triggers and inputs, write its SKILL.md file, add scripts, validate the package, and prepare a GitHub pull request and local copy.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lofcz/llmtornado/skill-creator
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 lofcz/LLMTornado --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/lofcz/LLMTornado

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 skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/lofcz/llmtornado/skill-creator/github.svg)](https://agentmods.dev/skills/lofcz/llmtornado/skill-creator)
Your own site
<a href="https://agentmods.dev/skills/lofcz/llmtornado/skill-creator"><img src="https://agentmods.dev/badge/skills/lofcz/llmtornado/skill-creator/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 skill-creator

Your own site · 80×15
<a href="https://agentmods.dev/skills/lofcz/llmtornado/skill-creator"><img src="https://agentmods.dev/badge/skills/lofcz/llmtornado/skill-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,543 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 warn 7 Sept 2026
SkillSpector: 4 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 120
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 197
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Data Exfiltration · line 139
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 142
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 $0.00022 $0.01543
Opus 5 $0.00011 $0.00772
Sonnet 5 $0.00004 $0.00309
Haiku 4.5 $0.00002 $0.00154

Measured 10d ago against content hash f1a88b703a7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

skill-creator 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.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/create_pr.sh, scripts/setup_skill_repo.sh, scripts/skill_generator.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.

Makes network callslowCapability

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

curl -X POST \
src/LlmTornado.Demo/Static/Files/Skills/skill-creator/SKILL.md · 225 lines

How it starts

The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Creation and GitHub Workflow

Copy this checklist and track your progress:

Skill Creation Progress:
- [ ] Step 1: Gather skill requirements and specifications
- [ ] Step 2: Generate skill structure and SKILL.md
- [ ] Step 3: Create supporting scripts and files
- [ ] Step 4: Validate skill completeness
- [ ] Step 5: Prepare GitHub repository structure
- [ ] Step 6: Create and push Git branch
- [ ] Step 7: Generate pull request
- [ ] Step 8: Download to local disk
- [ ] Step 9: Verify local download

Step 1: Gather skill requirements and specifications

Collect the following information from the user:

  • Skill name: Kebab-case name (e.g., "data-analyzer")
  • Description: Brief one-line description
  • Primary functionality: What the skill does
  • Workflow steps: Sequential steps for execution
  • Required tools: Any external tools or dependencies
  • Trigger words: Keywords that activate this skill
  • Expected inputs: What the user provides
  • Expected outputs: What the skill produces

Step 2: Generate skill structure and SKILL.md

Create the main SKILL.md file with this structure:

---
name: [skill-name]
description: [Brief description of what this skill does]
---

## [Skill Title]

Copy this checklist and track your progress:

[Skill Name] Progress:

  • Step 1: [First step]
  • Step 2: [Second step]
  • Step 3: [Third step] ...

## **Step 1: [First Step Name]**
[Detailed instructions for first step]

## **Step 2: [Second Step Name]**
[Detailed instructions for second step]

[Continue for all steps...]

Step 3: Create supporting scripts and files

If the skill requires automation, create:

  • Python scripts: For complex logic or API interactions
  • Bash scripts: For system operations and Git workflows
  • Config files: For settings and parameters
  • README.md: Usage instructions and examples

Step 4: Validate skill completeness

Check that the skill includes:

  • Clear, sequential workflow steps
  • Specific, actionable instructions
  • Progress tracking checklist
  • All necessary files
  • Proper markdown formatting
  • Front matter with name and description

Read the full file on GitHub · 225 lines

Files

What ships with it

8 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. 10d ago First seen · 225 lines · 22 tokens per session scan A f1a88b703a7c

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository lofcz/LLMTornado (639 stars, last pushed 23d ago), licensed MIT. It adds 22 tokens to every session and 1,543 once invoked, about $0.0001 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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