What is create-skill?

An interactive tool for creating a Grok skill, which is a set of instructions and optional files that teaches an AI assistant how to handle a recurring task.

Gathering requirements and scaffolding a SKILL.md file, with optional scripts and reference material, in a project or user directory.

It turns a repeated workflow into a reusable skill without requiring you to design all the files and rules manually.

create-skill — Skill for Claude Code and Codex by RoyZhao1991/LingShu

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 RoyZhao1991/LingShu --skill create-skill

Clone the repo

git clone --depth 1 https://github.com/RoyZhao1991/LingShu

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/royzhao1991/lingshu/create-skill/github.svg)](https://agentmods.dev/skills/royzhao1991/lingshu/create-skill)

Your own site

<a href="https://agentmods.dev/skills/royzhao1991/lingshu/create-skill"><img src="https://agentmods.dev/badge/skills/royzhao1991/lingshu/create-skill/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/royzhao1991/lingshu/create-skill"><img src="https://agentmods.dev/badge/skills/royzhao1991/lingshu/create-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 805 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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.00805
Opus 5.5	$0.00017	$0.00322
Sonnet 5.5	$0.00009	$0.00161
Haiku 4.5	$0.00004	$0.00081

Measured 1mo ago against content hash fead9243b902, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

create-skill 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

create-skill — 100% identical, 0 lines differ

Runtime/Grok/crates/codegen/xai-grok-shell/skills/create-skill/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Skill

Interactively gather requirements from the user and create a fully working Grok skill on disk.

Step 1: Gather information

Ask the user the following questions one at a time as regular conversation questions (do NOT use structured option prompts for free-text inputs):

Skill name - ask the user to type a name. Lowercase letters (a-z), digits (0-9), and hyphens (-) only. Must start and end with a letter or digit. Must be 2-64 characters long (e.g. deploy-k8s). Validate the name before proceeding.
Scope - present the user with two options:
- Project (Recommended): <repo-root>/.grok/skills/<name>/SKILL.md - available only in this repo, shareable with teammates
- User: ~/.grok/skills/<name>/SKILL.md - available in all projects
- Default to Project if inside a git repo, otherwise User.
What it should do - ask the user to describe the workflow, paste an example prompt they keep repeating, or explain the task the skill should automate.

Step 2: Draft the description

Write a description frontmatter value that includes:

What the skill does (1-2 sentences)
Trigger phrases and keywords so Grok knows when to auto-invoke it
The slash command name (e.g. "Use when the user runs /deploy-k8s")

Show the drafted description to the user and let them approve or edit it.

Step 3: Create the directory

Run this bash command to create the skill directory:

mkdir -p <SKILL_DIR>

Where <SKILL_DIR> is:

User scope: ~/.grok/skills/<name>
Project scope: <repo-root>/.grok/skills/<name>

If the skill needs helper scripts, also create <SKILL_DIR>/scripts/. If the skill needs reference docs, also create <SKILL_DIR>/references/.

Step 4: Write SKILL.md

Use search_replace with an empty old_string to create the file at <SKILL_DIR>/SKILL.md.

The file MUST follow this exact format:

---
name: <skill-name>
description: <the description from Step 2>
---

<markdown body with instructions, steps, code blocks>

Read the full file on GitHub · 81 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.

1mo ago First seen · 81 lines · 43 tokens per session scan A fead9243b902

Subscribe to this mod's changes

create-skill is a skill published in the GitHub repository RoyZhao1991/LingShu (11 stars, last pushed 12d ago), licensed Apache-2.0. It adds 43 tokens to every session and 805 once invoked, about $0.0002 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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