claud-skills: Skill for Claude Code

.claude/skills/skill-creator/SKILL.md

skill-creator is a skill for Claude Code from Interstellar-code/claud-skills. It costs 45 tokens per session (2,693 once invoked), scanned A, original, no licence file.

A guide for creating or updating skills that add specialised knowledge, workflows, or tool connections to an AI coding assistant.

In plain words
What is it for?
Use it to design new skills, improve existing ones, and describe when they should be used.
Why use it?
It helps turn repeated instructions into a reusable skill, so the assistant can follow a consistent process for a specific kind of work.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Interstellar-code/claud-skills's own configuration. It tells Claude Code how to work on claud-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claud-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Interstellar-code/claud-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Interstellar-code/claud-skills/main/.claude/skills/skill-creator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Interstellar-code/claud-skills

Made for: Claude Code.

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/interstellar-code/claud-skills/skill-creator/github.svg)](https://agentmods.dev/skills/interstellar-code/claud-skills/skill-creator)
Your own site
<a href="https://agentmods.dev/skills/interstellar-code/claud-skills/skill-creator"><img src="https://agentmods.dev/badge/skills/interstellar-code/claud-skills/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/interstellar-code/claud-skills/skill-creator"><img src="https://agentmods.dev/badge/skills/interstellar-code/claud-skills/skill-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,693 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 unknown 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 $0.00045 $0.02693
Opus 5.5 $0.00018 $0.01077
Sonnet 5.5 $0.00009 $0.00539
Haiku 4.5 $0.00005 $0.00269

Measured 2mo ago against content hash c844ee0c4955, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-creator 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/init_skill.py, scripts/package_skill.py, scripts/quick_validate.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.

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.

.claude/skills/skill-creator/SKILL.md · 254 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 254 lines · 45 tokens per session scan A c844ee0c4955

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository Interstellar-code/claud-skills (17 stars, last pushed 9mo ago), with no licence file. It adds 45 tokens to every session and 2,693 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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