design

A presentation-design workflow that turns an outline into slide layouts and a visual direction. It can also inspect an existing PptxGenJS generation script, which is code that creates PowerPoint slides.

In plain words
What is it for?
It is for planning slide counts, layouts, visual style, and edits to presentations generated with PptxGenJS.
Why use it?
It helps decide how much content belongs on each slide and how the presentation should look before the slides are built. It also distinguishes a new presentation from an edit to an existing one.

Skill for Claude CodeCodex

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/michaelengland/deckwright/design
Any agent
npx skills add michaelengland/deckwright --skill design
Clone the repo
git clone --depth 1 https://github.com/michaelengland/deckwright

Made for: Claude Code, Codex.

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,682 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 $0.00053 $0.01682
Opus 5 $0.00026 $0.00841
Sonnet 5 $0.00011 $0.00336
Haiku 4.5 $0.00005 $0.00168

Measured 2d ago against content hash cf7601aab457, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

design 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.

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/design/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design

Turn a content outline into a complete slide design — deciding how many slides each section becomes, which layouts to use, and what the visual direction should be. Outputs a saved slide design document that the present phase executes.

Prerequisites

  • A content outline exists (from /deckwright:craft), OR
  • User provides a clear structured outline, OR
  • A PptxGenJS generation script exists from a previous import or creation (edit mode)

If no outline or generation script exists: "Would you like to use /deckwright:craft first to structure your content?"

Process

Edit Mode Check

Before starting, determine mode using either signal:

  1. Session context: If a prior skill this session stated this is an "edit session", treat this as edit mode — do not re-check the filesystem.
  2. Filesystem check: If no session context exists, check whether a deck folder in decks/ contains a PptxGenJS generation script (a .js file containing require("pptxgenjs")).
  • If no generation script and no edit-mode context: Follow the standard process below.
  • If edit mode (either signal): This is an edit. Read the generation script to understand the current deck, then:
    1. Extract the current visual direction — collect all hex colors used (with frequency), fonts, size scales, and layout patterns across slides
    2. Summarize the current design back to the user:

      "Here's the current visual direction I see:

      • Colors: [extracted palette]
      • Typography: [fonts and sizes in use]
      • Layouts: [summary of patterns]

      What would you like to change?"

    3. Based on user input, produce or update a slide design document — explicitly note which slides are "keep as-is" vs. "modify" vs. "rebuild"
    4. Continue to step 5 (Document the Slide Design) to save the updated design

1. Load the Content Outline

Read the content outline document. Extract:

  • Total section count and estimated duration
  • Each section's key message, content, emphasis level, and speaker notes
  • Source references
  • Design notes (brand requirements, constraints)

Read the full file on GitHub · 160 lines

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 · 160 lines · 53 tokens per session scan A cf7601aab457

Subscribe to this mod's changes

design is a skill published in the GitHub repository michaelengland/deckwright (2 stars, last pushed 6mo ago), licensed MIT. It adds 53 tokens to every session and 1,682 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 2026-08-31.

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