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 Geeksfino/openskills --skill openskills-skill-authoringgit clone --depth 1 https://github.com/Geeksfino/openskillsWrote 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/geeksfino/openskills/openskills-skill-authoring)<a href="https://agentmods.dev/skills/geeksfino/openskills/openskills-skill-authoring"><img src="https://agentmods.dev/badge/skills/geeksfino/openskills/openskills-skill-authoring/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/geeksfino/openskills/openskills-skill-authoring"><img src="https://agentmods.dev/badge/skills/geeksfino/openskills/openskills-skill-authoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector 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 | $0.00036 | $0.00271 |
| Opus 5 | $0.00018 | $0.00135 |
| Sonnet 5 | $0.00007 | $0.00054 |
| Haiku 4.5 | $0.00004 | $0.00027 |
Grade A, and why
openskills-skill-authoring 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.
What it actually says
OpenSkills Skill Authoring
Use this skill when creating or updating skills under examples/skills or any OpenSkills-compatible skill directory.
Authoring Standard
Each skill directory should include:
SKILL.md(required)- optional
scripts/,references/,assets/
SKILL.md Requirements
- YAML frontmatter with:
namedescription
- Body with concise instructions and practical execution flow.
- Description must include both:
- what the skill does
- when to activate it
Writing Guidance
- Keep core instructions short; move details to
references/. - Prefer deterministic scripts for fragile or repetitive steps.
- Include explicit input/output expectations.
- Avoid vague names and ambiguous activation phrases.
Validation Flow
- Ensure directory name matches skill
namesemantics. - Verify skill discovery and activation behavior in runtime or example agent.
- If scripts are present, verify paths and execution assumptions.
Output Format
- Skill metadata quality review
- Instruction clarity review
- Activation trigger quality review
- Suggested revisions
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 · 46 lines · 36 tokens per session scan A a032ed982fcb
openskills-skill-authoring is a skill published in the GitHub repository Geeksfino/openskills (71 stars, last pushed 11d ago), licensed Apache-2.0. It adds 36 tokens to every session and 271 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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