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 SkillsCatalog/registry --skill skill-creategit clone --depth 1 https://github.com/SkillsCatalog/registryWrote 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/skillscatalog/registry/skill-create)<a href="https://agentmods.dev/skills/skillscatalog/registry/skill-create"><img src="https://agentmods.dev/badge/skills/skillscatalog/registry/skill-create/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/skillscatalog/registry/skill-create"><img src="https://agentmods.dev/badge/skills/skillscatalog/registry/skill-create.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00028 | $0.00675 |
| Opus 5.5 | $0.00011 | $0.00270 |
| Sonnet 5.5 | $0.00006 | $0.00135 |
| Haiku 4.5 | $0.00003 | $0.00068 |
Grade A, and why
skill-create 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.
How it starts
The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Instructions
Use this skill to create new Agent Skills from templates. It generates a properly structured skill directory with a valid SKILL.md file and optional scripts/assets folders.
When to Use
- Starting a new skill from scratch
- Ensuring proper skill structure and naming
- Quickly prototyping new skill ideas
- Teaching others how to structure skills
How to Use
Create a new skill with a name:
Create a new skill called "pdf-tools"
Create a skill with a specific template:
Create a new skill called "data-analyzer" using the with-scripts template
Available templates:
- basic - Just SKILL.md (default)
- with-scripts - SKILL.md + scripts directory
- with-assets - SKILL.md + scripts + assets directories
Output
Creates a complete skill directory:
Basic template:
pdf-tools/
├── SKILL.md
└── README.md
With-scripts template:
pdf-tools/
├── SKILL.md
├── README.md
└── scripts/
└── main.py
With-assets template:
pdf-tools/
├── SKILL.md
├── README.md
├── scripts/
│ └── main.py
└── assets/
└── .gitkeep
Examples
Basic skill:
User: Create a new skill called "code-formatter"
Agent: Creating skill "code-formatter" with basic template...
Created:
✓ code-formatter/SKILL.md
✓ code-formatter/README.md
Next steps:
1. Edit SKILL.md with your skill's instructions
2. Add any supporting files
3. Run skill-validator to check compliance
Interactive mode:
User: Create a new skill
Agent: I'll help you create a new skill.
Skill name: code-formatter
Description: Format code in various languages
Template: with-scripts
License: MIT
Creating...
✓ Created code-formatter with with-scripts template
With metadata:
User: Create a new skill called "api-tester" with description "Test REST APIs" and author "acme-corp"
Agent: Creating skill "api-tester"...
✓ Created with custom metadata:
- Description: Test REST APIs
- Author: acme-corp
- License: MIT (default)
What ships with it
2 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.
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 · 127 lines · 28 tokens per session scan A 83d1f4803d5b
skill-create is a skill published in the GitHub repository SkillsCatalog/registry (1 stars, last pushed 9mo ago), licensed MIT. It adds 28 tokens to every session and 675 once invoked, about $0.0001 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 2026-08-31.
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