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 ivegamsft/basecoat --skill create-skillgit clone --depth 1 https://github.com/ivegamsft/basecoatWrote 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/ivegamsft/basecoat/create-skill)<a href="https://agentmods.dev/skills/ivegamsft/basecoat/create-skill"><img src="https://agentmods.dev/badge/skills/ivegamsft/basecoat/create-skill.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 | $0.00086 | $0.00404 |
| Opus 5 | $0.00043 | $0.00202 |
| Sonnet 5 | $0.00017 | $0.00081 |
| Haiku 4.5 | $0.00009 | $0.00040 |
Grade A, and why
create-skill 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 5d 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
Create A Skill
Use this skill when the goal is to add a new SKILL.md to a shared customization repository.
Workflow
- Define the exact problem the skill should solve repeatedly.
- Confirm a skill is the right primitive instead of an instruction, prompt, or agent.
- Create a folder with a stable, discoverable name.
- Add frontmatter with
namematching the folder and a description that includes trigger phrases. - Write a short workflow with guardrails, expected output, and non-goals.
- Keep the skill concise: target roughly ≤500 tokens so validation stays advisory instead of noisy. Move long examples into templates or docs.
- Add templates or examples if the workflow benefits from starter assets.
- Validate frontmatter and update any catalog or inventory.
Guardrails
- Keep the skill scoped to one clear workflow.
- Put discovery keywords in the description, not only in the body.
- Keep
SKILL.mdunder the token-budget target; move detail into templates or supporting docs. - Avoid broad descriptions that overlap heavily with existing skills.
- Do not create a skill when a file instruction would be sufficient.
Starter Assets
- Template:
templates/SKILL.template.md - Consider adding
examples/ortemplates/only when they reduce repeated work
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.
- 5d ago First seen · 40 lines · 86 tokens per session scan A 83c677e67feb
create-skill is a skill published in the GitHub repository ivegamsft/basecoat (4 stars, last pushed today), licensed MIT. It adds 86 tokens to every session and 404 once invoked, about $0.0004 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 2026-09-03.
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