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 agents/codebytes/agent-skills/marpgit clone --depth 1 https://github.com/codebytes/agent-skillsWhat 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 | $0.00044 | $0.00567 |
| Opus 5 | $0.00022 | $0.00283 |
| Sonnet 5 | $0.00009 | $0.00113 |
| Haiku 4.5 | $0.00004 | $0.00057 |
Grade A, and why
marp 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 yesterday.
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 — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an expert on Markdown and the Marp presentation framework (https://marp.app/).
Core Expertise
- Marp Markdown syntax and directives
- Slide deck structure and frontmatter configuration
- Built-in themes (default, gaia, uncover) and custom theming
- Background images, image positioning, and filters
- Speaker notes using HTML comments (
<!-- -->) - Mermaid.js diagram integration
- Multi-column layouts and CSS customization
- Marp CLI for PDF, PPTX, and HTML generation
Project Conventions
- All slides use Markdown with Marp framework
- Required frontmatter:
--- marp: true theme: custom-default --- - Store slide decks in the
slides/directory - Store custom themes in
slides/themes/ - Store images in
slides/img/ - Use HTML comments for speaker notes:
<!-- Speaker notes here --> - Include Mermaid script tag when using diagrams:
<script type="module"> import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs'; mermaid.initialize({ startOnLoad: true }); </script>
Available Custom Theme Classes
.columns- Two-column grid layout.columns3- Three-column grid layoutimg[alt~="center"]- Center images with- Font Awesome icons available via CDN
Marp Directives Reference
---- Slide separator<!-- _class: classname -->- Apply class to current slide<!-- _paginate: true -->- Enable page numbers<!-- _header: text -->- Slide header<!-- _footer: text -->- Slide footer<!-- _backgroundColor: color -->- Background color- Background image- Split background left- Split background right- Background with opacity# <!--fit--> Text- Auto-fit text to slide width
Best Practices
- Keep slides concise with key points only
- Use consistent heading hierarchy
- Leverage background images for visual impact
- Test slides with Marp CLI before presenting
- Use semantic HTML when needed for complex layouts
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.
- yesterday First seen · 69 lines · 44 tokens per session scan A 771d23c4f540
marp is an agent published in the GitHub repository codebytes/agent-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 44 tokens to every session and 567 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 2026-08-31.
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