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 osloer-industries/vakt --skill skill-creatorgit clone --depth 1 https://github.com/osloer-industries/vaktWrote 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/osloer-industries/vakt/skill-creator)<a href="https://agentmods.dev/skills/osloer-industries/vakt/skill-creator"><img src="https://agentmods.dev/badge/skills/osloer-industries/vakt/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.
<a href="https://agentmods.dev/skills/osloer-industries/vakt/skill-creator"><img src="https://agentmods.dev/badge/skills/osloer-industries/vakt/skill-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00063 | $0.01705 |
| Opus 5 | $0.00032 | $0.00852 |
| Sonnet 5 | $0.00013 | $0.00341 |
| Haiku 4.5 | $0.00006 | $0.00170 |
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 9d 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 — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Creator
A skill for creating new skills and iteratively improving them using vakt's provider-agnostic approach.
Overview
At a high level, the process of creating a skill goes like this:
- Decide what you want the skill to do and roughly how it should do it
- Write a draft of the skill
- Create a few test prompts and run claude-with-access-to-the-skill on them
- Help the user evaluate the results both qualitatively and quantitatively
- Rewrite the skill based on feedback
- Repeat until satisfied
- Use vakt to install and sync the skill to all providers
Communicating with the User
The skill creator is liable to be used by people across a wide range of familiarity with coding jargon. Pay attention to context cues to understand how to phrase your communication.
Creating a Skill
Step 1: Capture Intent
Start by understanding the user's intent. The current conversation might already contain a workflow the user wants to capture.
- What should this skill enable Claude to do?
- When should this skill trigger? (what user phrases/contexts)
- What's the expected output format?
- Should we set up test cases to verify the skill works?
Step 2: Interview and Research
Proactively ask questions about edge cases, input/output formats, example files, success criteria, and dependencies.
Step 3: Create the Skill Directory
Create the skill in ~/.agents/skills/<skill-name>/:
mkdir -p ~/.agents/skills/<skill-name>
Step 4: Write the SKILL.md
Create ~/.agents/skills/<skill-name>/SKILL.md with:
---
name: skill-name
description: When to trigger, what it does. Be specific about trigger phrases.
---
# Skill Name
[Instructions for the skill...]
Key frontmatter fields:
- name: Skill identifier (required)
- description: When to trigger + what it does (required, this is the primary triggering mechanism)
Skill Writing Guide
Anatomy of a Skill
skill-name/
├── SKILL.md (required)
│ ├── YAML frontmatter (name, description required)
│ └── Markdown instructions
└── Bundled Resources (optional)
├── scripts/ - Executable code for deterministic tasks
├── references/ - Docs loaded into context as needed
└── assets/ - Files used in output (templates, etc.)
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.
- 9d ago First seen · 293 lines · 63 tokens per session scan A 2aa5c64fc6e6
skill-creator is a skill published in the GitHub repository osloer-industries/vakt (3 stars, last pushed 1mo ago), licensed MIT. It adds 63 tokens to every session and 1,705 once invoked, about $0.0003 per session on Opus 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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