agentmods.dev

creating-presentations

A toolkit for creating, editing, inspecting, and checking PowerPoint presentation files. It works with slide layouts, themes, comments, and the XML files inside a presentation.

In plain words
What is it for?
Use it to build decks from scratch or templates, convert HTML into slides, edit existing presentations, and review slide thumbnails.
Why use it?
It provides defined workflows for changing slides and checking the result visually, helping catch cut-off content, overlaps, and poor contrast.

Skill for Claude CodeCodex

239 +1 1mo ago A scan 61 tokens original MIT
View the source file telagod/code-abyss
Install

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.

agentmods
npx agentmods add skills/telagod/code-abyss/creating-presentations
Any agent
npx skills add telagod/code-abyss --skill creating-presentations
Clone the repo
git clone --depth 1 https://github.com/telagod/code-abyss

Made for: Claude Code, Codex.

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,008 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00061 $0.01008
Opus 5 $0.00030 $0.00504
Sonnet 5 $0.00012 $0.00202
Haiku 4.5 $0.00006 $0.00101

Measured 2d ago against content hash 38915055fb43, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

creating-presentations 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 2d ago.

The scan reads SKILL.md. This mod also ships 13 executable files (ooxml/scripts/pack.py, ooxml/scripts/unpack.py, ooxml/scripts/validate.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/creating-presentations/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PPTX Processing

.pptx is a ZIP archive of XML and resources. Choose workflow by intent.

Workflow Decision

Intent Workflow Reference
Read text markitdown → markdown thumbnails-and-conversion.md
Analyze layout / comments / theme unpack → raw XML thumbnails-and-conversion.md
Create new from scratch html2pptx html2pptx.md + design-patterns.md
Create using template rearrange + inventory + replace template-workflow.md
Edit existing slides unpack → OOXML → pack ooxml.md
Visual review thumbnail grids thumbnails-and-conversion.md

Iron Rules

  • Color choice is design — see palettes.md, state your approach BEFORE code.
  • Web-safe fonts only — Arial, Helvetica, Times New Roman, Georgia, Courier New, Verdana, Tahoma, Trebuchet MS, Impact.
  • Layout matches content count — 2 items → 2 columns; 3 → 3; never force.
  • Validate visually — always generate thumbnails after creation, inspect for cutoff/overlap/contrast.

Create New (without template) — html2pptx

  1. MANDATORY — READ ENTIRE FILE: html2pptx.md. NEVER set range limits.
  2. Create HTML per slide (e.g., 720pt × 405pt for 16:9)
    • Use <p>, <h1>–<h6>, <ul>, <ol>
    • class="placeholder" for chart/table areas (gray bg for visibility)
    • CRITICAL: Rasterize gradients & icons as PNG via Sharp first, then reference in HTML
    • Use full-slide or two-column layout for charts/tables — never vertical stack
  3. Run scripts/html2pptx.js to convert
    • html2pptx() per HTML file
    • Charts/tables via PptxGenJS API on placeholders
    • pptx.writeFile() to save
  4. Visual validation — python scripts/thumbnail.py output.pptx workspace/thumbnails --cols 4
    • Inspect for: text cutoff, overlap, positioning, contrast
    • Adjust HTML margins/spacing/colors, regenerate, repeat

Read the full file on GitHub · 75 lines

Files

What ships with it

58 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.

Changes

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.

  1. 2d ago First seen · 75 lines · 61 tokens per session scan A 38915055fb43

Subscribe to this mod's changes

creating-presentations is a skill published in the GitHub repository telagod/code-abyss (239 stars, last pushed 1mo ago), licensed MIT. It adds 61 tokens to every session and 1,008 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.

Documentsai-assistantblue-teamclaude-codeclicodex-cliconfiguration
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