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/mathews-tom/armory/html-presentationnpx skills add Mathews-Tom/armory --skill html-presentationgit clone --depth 1 https://github.com/Mathews-Tom/armoryWhat 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 | $0.00070 | $0.02186 |
| Opus 5 | $0.00035 | $0.01093 |
| Sonnet 5 | $0.00014 | $0.00437 |
| Haiku 4.5 | $0.00007 | $0.00219 |
Grade A, and why
html-presentation 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 3d 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 — 173 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HTML Presentation Skill
Convert documents, outlines, or freeform content into polished, self-contained HTML slide presentations with keyboard and scroll navigation.
When This Skill Triggers
- User provides a document and asks for a "presentation", "slides", or "deck" as HTML
- User asks to convert notes/outline/content into browser-presentable slides
- User wants a Reveal.js or scroll-based HTML presentation
- User references wanting to present from a browser rather than PowerPoint
Step 0: Gather Requirements
Before generating anything, check whether the user has specified the following. If any are missing, ask for clarification in a single concise message. Do NOT ask more than once — use sensible defaults for anything the user declines to specify.
Required context (ask if missing):
| Parameter | What to ask | Default if not specified |
|---|---|---|
| Navigation mode | "Should slides go left-to-right (horizontal) or top-to-bottom (vertical scroll)?" | horizontal |
| Theme | "Which visual style? Options: dark-editorial (dark bg, serif headlines, editorial feel), light-minimal (clean white, sans-serif), corporate (navy/white, professional), hacker (terminal green-on-black, monospace)" |
dark-editorial |
| Audience & tone | "Who is this for? (e.g., investors, engineers, conference talk, internal team)" | Infer from content |
| Slide count preference | "Roughly how many slides?" | Auto-determine from content density |
| Branding | "Any logo text, tagline, or accent color to use in the header?" | None |
| CTA / closing | "Any call-to-action, links, or contact info for the final slide?" | None |
What ships with it
4 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.
- 3d ago First seen · 173 lines · 70 tokens per session scan A 8cf1bef94b8f
html-presentation is a skill published in the GitHub repository Mathews-Tom/armory (316 stars, last pushed 4d ago), licensed MIT. It adds 70 tokens to every session and 2,186 once invoked, about $0.0003 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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