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 kakutixyz-ai/agent-publishing-skills --skill codepengit clone --depth 1 https://github.com/kakutixyz-ai/agent-publishing-skillsWrote 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/kakutixyz-ai/agent-publishing-skills/codepen)<a href="https://agentmods.dev/skills/kakutixyz-ai/agent-publishing-skills/codepen"><img src="https://agentmods.dev/badge/skills/kakutixyz-ai/agent-publishing-skills/codepen/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/kakutixyz-ai/agent-publishing-skills/codepen"><img src="https://agentmods.dev/badge/skills/kakutixyz-ai/agent-publishing-skills/codepen.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 | $0.00000 | $0.00646 |
| Opus 5 | $0.00000 | $0.00323 |
| Sonnet 5 | $0.00000 | $0.00129 |
| Haiku 4.5 | $0.00000 | $0.00065 |
Grade A, and why
codepen 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 10d 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.
This is a copy
81% identical to a-list-apart — 20 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.
name: writer-platform-codepen description: Write platform-specific drafts for CodePen — https://codepen.io using its dedicated language, length, tone, format, and community rules.
CodePen — https://codepen.io Writer
Use this skill when the target platform is codepen / CodePen — https://codepen.io. This is the platform-specific writing capability for that website, not a generic adapter.
Knowledge To Load
knowledge/platforms/codepen.mdskills/adapter-showcase/SKILL.mdknowledge/styles/build-in-public.mdtemplates/base/showcase.mdtemplates/platforms/codepen/when a platform override template existsknowledge/rules/anti-spam.mdknowledge/rules/no-auto-publish.mdknowledge/rules/disclosure.mdknowledge/rules/factual-accuracy.md
Inputs
- Project brief matching
schemas/project-brief.schema.json, or a base draft matchingschemas/platform-draft.schema.json. - Any user-provided assets, links, screenshots, metrics, code snippets, or launch details.
Platform Binding
- Platform slug:
codepen - Recommended adapter:
adapter-showcase - Primary language code:
en - Categories: showcase
- Target audience: developers
Writing Contract
- Load
knowledge/platforms/codepen.mdfirst and treat it as the source of truth for this website. - Extract the site's required language, regional spelling, expected length, tone, accepted content shapes, formatting conventions, required assets, and banned patterns.
- Use
adapter-showcaseonly as a helper pattern. If the generic adapter conflicts withcodepen, the platform profile wins. - Match the site's expected content length. Short-post platforms must stay short; long-form editorial or tutorial platforms must provide enough depth, evidence, and structure.
- Match the site's voice. Preserve literary, technical, formal, skeptical, educational, founder-led, visual, or community-native tone when the profile asks for it.
- Use only facts from the brief, base draft, loaded knowledge, templates, and user-provided materials. Do not invent URLs, metrics, version numbers, names, screenshots, testimonials, or claims.
- Include required placeholders only when a platform field is mandatory but the fact is missing, and set
statustoneeds_review. - Remove content types listed as poor fit for this platform. If the project is fundamentally unsuitable, return a
needs_reviewdraft explaining the fit problem instead of forcing a post. - Do not publish or imply that publication has happened.
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.
- 10d ago First seen · 56 lines · 0 tokens per session scan A ba8b82b715ed
codepen is a skill published in the GitHub repository kakutixyz-ai/agent-publishing-skills (2 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 646 tokens. A static security scan graded it A with 0 findings. It is 81% identical to a-list-apart, differing in 20 lines, and is treated as a copy.
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