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 mishahanin/heading-os --skill pptx-generatorgit clone --depth 1 https://github.com/mishahanin/heading-osWrote 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/mishahanin/heading-os/pptx-generator)<a href="https://agentmods.dev/skills/mishahanin/heading-os/pptx-generator"><img src="https://agentmods.dev/badge/skills/mishahanin/heading-os/pptx-generator.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Excessive Agency · line 19 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 | $0.00211 | $0.02685 |
| Opus 5 | $0.00105 | $0.01342 |
| Sonnet 5 | $0.00042 | $0.00537 |
| Haiku 4.5 | $0.00021 | $0.00268 |
Grade A, and why
pptx-generator 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 4d 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 — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PPTX Slide Generator
Generate professional, on-brand presentation slides using python-pptx. This skill supports:
- Slide Generation - Create presentations for any brand in
brands/ - Carousel Generation - Create LinkedIn carousels (square format, exports to PDF)
- Slide Editing - Modify existing PPTX files
- Layout Management - Create, edit, update cookbook layouts
IMPORTANT: All skill resources are in .claude/skills/pptx-generator/. Always use Glob patterns starting with .claude/skills/pptx-generator/ to find files.
CRITICAL: Batch Generation Rules
NEVER generate more than 5 slides at once.
| Rule | Details |
|---|---|
| Max slides per batch | 5 (can be 1, 2, 3, 4, or 5) |
| After each batch | STOP and validate output |
| Validation required | Check: no duplicate titles, proper spacing, correct colors |
| Continue when | Validation passes |
| After ALL batches | COMBINE into single file and DELETE part files |
CRITICAL: Always clean up part files after combining. The user should only see ONE final PPTX file.
PREREQUISITE: Brand Check
Before generating slides, check if any brands exist.
Glob: .claude/skills/pptx-generator/brands/*/brand.json
If NO brands found (only template/ exists): STOP and ask the user to create a brand first. See references/brand-setup.md for the full brand creation workflow.
Skill Modes
Mode 1: Generate Presentation Slides
User wants presentation slides (16:9) created using a brand's styling.
Follow the workflow below. Layouts in: cookbook/*.py
Mode 2: Generate LinkedIn Carousels
User wants a LinkedIn carousel (square 1:1 format) for social media. See references/carousel-workflow.md for the full carousel workflow.
Mode 3: Manage Cookbook Layouts
User wants to create, edit, or improve layout templates. See references/layout-crud.md for layout CRUD operations.
What ships with it
46 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.
- brands/31c/assets/31C_Logo_Black_Color.png 130 B
- brands/31c/assets/31C_Logo_Glaucous_Color.png 130 B
- brands/31c/assets/31C_Logo_Palantinate_Blue_Color.png 130 B
- brands/31c/assets/31C_Logo_White_Color.png 130 B
- brands/31c/brand-system.md 6.2 KB
- brands/31c/brand.json 955 B
- brands/31c/config.json 665 B
- brands/31c/tone-of-voice.md 4.5 KB
- brands/template/assets/.gitkeep 178 B
- brands/template/brand-system.md 1.3 KB
- brands/template/brand.json 574 B
- brands/template/config.json 645 B
- brands/template/README.md 3.3 KB
- brands/template/tone-of-voice.md 756 B
- cookbook-preview.pptx 130 B
- cookbook/bold-diagonal-slide.py 5.1 KB runs code
- cookbook/carousels/cta-slide.py 4.7 KB runs code
- cookbook/carousels/hook-slide.py 4.3 KB runs code
- cookbook/carousels/numbered-point-slide.py 4.7 KB runs code
- cookbook/carousels/quote-slide.py 4.5 KB runs code
- cookbook/carousels/single-point-slide.py 4.2 KB runs code
- cookbook/chart-slide.py 6.5 KB runs code
- cookbook/circular-hero-slide.py 6.6 KB runs code
- cookbook/closing-slide.py 6.6 KB runs code
- cookbook/code-slide.py 6.5 KB runs code
- cookbook/content-slide.py 5.4 KB runs code
- cookbook/corner-anchor-slide.py 6.3 KB runs code
- cookbook/floating-cards-slide.py 6.7 KB runs code
- cookbook/giant-focus-slide.py 5.1 KB runs code
- cookbook/image-caption-slide.py 6.4 KB runs code
- cookbook/multi-card-slide.py 6.6 KB runs code
- cookbook/quote-slide.py 4.4 KB runs code
- cookbook/section-break-slide.py 5.1 KB runs code
- cookbook/stats-slide.py 5.8 KB runs code
- cookbook/title-slide.py 3.9 KB runs code
- cookbook/two-column-slide.py 7.8 KB runs code
- font-test.pptx 130 B
- generate-cookbook-preview.py 29 KB runs code
- references/brand-setup.md 3.1 KB
- references/carousel-workflow.md 3.9 KB
- references/generation-workflow.md 8.5 KB
- references/layout-crud.md 5.8 KB
- references/layout-guide.md 6.1 KB
- references/technical-reference.md 2.1 KB
- scripts/combine_decks.py 7.3 KB runs code
- triggers.json 757 B
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.
- 4d ago First seen · 260 lines · 211 tokens per session scan A 518f4ead50b8
pptx-generator is a skill published in the GitHub repository mishahanin/heading-os (11 stars, last pushed yesterday), licensed Apache-2.0. It adds 211 tokens to every session and 2,685 once invoked, about $0.0011 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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