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 agentmods add skills/arrase/ollama-agent/skill-creatornpx skills add arrase/ollama-agent --skill skill-creatorgit clone --depth 1 https://github.com/arrase/ollama-agentWrote 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/arrase/ollama-agent/skill-creator)<a href="https://agentmods.dev/skills/arrase/ollama-agent/skill-creator"><img src="https://agentmods.dev/badge/skills/arrase/ollama-agent/skill-creator.svg" alt="Measured on agentmods" 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 | $0.00034 | $0.00856 |
| Opus 5 | $0.00017 | $0.00428 |
| Sonnet 5 | $0.00007 | $0.00171 |
| Haiku 4.5 | $0.00003 | $0.00086 |
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 6d 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 — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Creator
A skill is a modular, self-contained package of capabilities and instructions that extends the agent's abilities. Skills follow the standard Agent Skills specification and reside in /skills/<skill_id>/ (persisted in ~/.ollama-agent/skills/<skill_id>/).
Directory Structure
A skill directory must contain a SKILL.md file and may include optional subdirectories:
/skills/<skill-id>/
├── SKILL.md # Required: Frontmatter YAML + instructions
├── scripts/ # Optional: Executable Python or Bash helper scripts
├── references/ # Optional: Deep reference documentation, schemas, API specs
└── examples/ # Optional: Input/output samples, templates, test cases
Critical Decision: When to Create scripts/ vs Pure SKILL.md
When designing a skill, always evaluate whether helper scripts are needed:
-
Create Helper Scripts (
scripts/) when:- The task involves deterministic algorithms, parsing structured formats (JSON, AST, XML, CSV), regex transformations, or data validation.
- The task performs repetitive Git workflows, CLI tool wrapping, API fetching, or complex file operations.
- The operation is error-prone or wasteful to do purely through LLM token generation.
- Language: Write modular, self-contained Python scripts (or Bash if simple shell piping is sufficient). Ensure scripts handle errors gracefully and output clear diagnostic messages.
-
Use Pure Markdown (
SKILL.md) when:- The skill focuses on reasoning guidelines, architectural reviews, code style heuristics, tone/formatting advice, or general workflow orchestration without deterministic code execution.
SKILL.md Specification
1. Frontmatter (YAML)
Every SKILL.md must start with YAML frontmatter:
---
name: skill-id-or-name
description: A clear, concise 1-3 sentence summary of what this skill does and the exact trigger conditions for when the agent should activate it.
---
IMPORTANT (Level 1 Discovery): The
descriptionis loaded into the agent's discovery prompt before the full skill content is read. It MUST explicitly state what the skill does and when the agent should load and follow it.
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.
- 6d ago First seen · 65 lines · 34 tokens per session scan A bc04cc27b574
skill-creator is a skill published in the GitHub repository arrase/ollama-agent (20 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 856 once invoked, about $0.0002 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 2026-08-30.
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