Oh My PPT is a local-first desktop application that uses AI to create, edit, present, and export editable HTML-based slide presentations. It is for people making presentations, lessons, stories, reports, or pitches who want to describe their content and then adjust the resulting pages, visuals, animations, and layouts.
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 arcsin1/oh-my-ppt --skill oh-my-ppt-chartgit clone --depth 1 https://github.com/arcsin1/oh-my-pptWrote 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/arcsin1/oh-my-ppt/oh-my-ppt-chart)<a href="https://agentmods.dev/skills/arcsin1/oh-my-ppt/oh-my-ppt-chart"><img src="https://agentmods.dev/badge/skills/arcsin1/oh-my-ppt/oh-my-ppt-chart/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/arcsin1/oh-my-ppt/oh-my-ppt-chart"><img src="https://agentmods.dev/badge/skills/arcsin1/oh-my-ppt/oh-my-ppt-chart.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Prompt Injection · line 55 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- high Prompt Injection · line 118 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 | $0.00042 | $0.03710 |
| Opus 5 | $0.00021 | $0.01855 |
| Sonnet 5 | $0.00008 | $0.00742 |
| Haiku 4.5 | $0.00004 | $0.00371 |
Grade A, and why
oh-my-ppt-chart 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 6d 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 — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Oh My PPT Chart
For deeper examples (chart selection, frame height guide, category axis patterns, layout integration tips), read references/chart.md.
When to use
- Adding a chart to a new or existing slide
- Modifying chart type, data, or options
- Repairing a blank or broken chart canvas
When not to use
- Pure visual micro-edits that don't change chart structure (e.g. adjusting a single color value). These still follow chart skill hard rules, but don't require reading the full reference.
- A page without a source-grounded quantitative relationship. Course maps, agendas, processes, equal-status topic groups, hierarchies, and qualitative comparisons are page-native diagrams, not Chart.js charts.
30-second decision checklist
Before deciding to write chart HTML, answer these in order:
- Chart gate: does the source provide a real numeric, temporal, compositional, profile, or correlation relationship? If not, use a page-native diagram and stop.
- Visual question: is the message comparison, trend, composition, profile, or correlation? Choose the chart form for that question; never create numbers or proportions just to use a chart.
- Content slot: how much vertical space remains for the chart zone after title, outer padding, gaps, notes, and reserve?
- Support budget: if metric cards, insight rails, legends, or footnotes share that zone, subtract their height first. Start with a small support set (often 0-2 items) around a main chart; add more when the reading path, hierarchy, and chart budget remain clear.
- Final chart height: hero / standard / compact? Pick one final px height for the chart frame. The
h-[Npx]class must equal this final number. - Data semantics: one value axis = one unit/meaning. Do not mix counts, percentages, money, or "new role" labels in one numeric dataset.
- Takeaway: what should the audience conclude from the chart? Write one visible interpretation sentence or a compact annotation rail; the chart cannot be the whole argument by itself.
- Data shape: labels + datasets. Are there enough data points for the chosen type?
- Script event: DOMContentLoaded only — the runtime loads Chart.js before this event fires.
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.
- 6d ago Changed · +13 lines · +4 tokens per session 77744ced04ba
- 11d ago First seen · 213 lines · 38 tokens per session scan A 419bd93e0269
oh-my-ppt-chart is a skill published in the GitHub repository arcsin1/oh-my-ppt (1,946 stars, last pushed 5d ago), licensed Apache-2.0. It adds 42 tokens to every session and 3,710 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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