caio-moliveira/ai-engineer-roadmap/powerpoint

Name: powerpoint
Author: caio-moliveira

Claude Code and agent skill by caio-moliveira/ai-engineer-roadmap

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By caio-moliveira
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caio-moliveira/ai-engineer-roadmap
03-ai-agents/09-agents-in-production/skills/powerpoint/SKILL.md
Updated 3 Nov 2026
Version 1.0.01 version recorded

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Use this skill when you need to generate a .pptx file from a presentation spec JSON. Composes slides with brand colours, text content, and speaker notes into a PowerPoint file using the build_pptx tool.

Install

npx vskill@latest install caio-moliveira/ai-engineer-roadmap/powerpoint

SKILL.md

PPT Generation Skill

Overview

This skill generates a PowerPoint presentation from a presentation_spec.json file using the build_pptx tool.

Workflow (Local Environment)

Important: This environment uses FilesystemBackend — there is no execute tool.
Use the build_pptx Python tool directly instead of bash commands.

Step 1: Confirm the spec file exists

read_file("/artifacts/presentation_spec.json")

Verify it has a slides array and a brand object with primary_color, accent_color, text_color.

Step 2: Call the build_pptx tool

build_pptx(
    spec_file  = "<ARTIFACTS_DIR>/presentation_spec.json",
    output_file= "<ARTIFACTS_DIR>/presentation_final.pptx"
)

Replace <ARTIFACTS_DIR> with the absolute path shown in your instructions.

Step 3: Verify output

The tool returns a string starting with "Successfully generated". If it starts with "Error:", report the error immediately.

presentation_spec.json Schema

json

{
  "title": "...",
  "subtitle": "...",
  "author": "...",
  "aspect_ratio": "16:9",
  "brand": {
    "primary_color": "#1B2A4A",
    "accent_color":  "#00C2CB",
    "text_color":    "#FFFFFF"
  },
  "slides": [
    {
      "id": 1,
      "type": "capa",
      "title": "...",
      "subtitle": "...",
      "main_message": "..."
    },
    {
      "id": 2,
      "type": "sobre_mim",
      "title": "Sobre Mim",
      "bio": "...",
      "bullets": ["..."],
      "main_message": "..."
    },
    {
      "id": 3,
      "type": "bloco_intro",
      "title": "...",
      "objective": "...",
      "bullets": ["..."],
      "main_message": "..."
    },
    {
      "id": 4,
      "type": "content",
      "title": "...",
      "bullets": ["..."]
    },
    {
      "id": 5,
      "type": "conclusao",
      "title": "...",
      "bullets": ["..."],
      "main_message": "..."
    }
  ]
}

Slide Types

type	Purpose
`capa`	Title slide — large centered title + subtitle
`sobre_mim`	Instructor bio — bio sentence + bullets
`course_intro`	Course overview
`bloco_intro`	Block introduction with accent bar
`content`	Lesson list for a block
`conclusao`	Closing slide with takeaways

Legacy Image-Based Workflow

Core Capabilities

Plan and structure multi-slide presentations with unified visual style
Support multiple presentation styles: Business, Academic, Minimal, Apple Keynote, Creative
Generate unique AI images for each slide using image-generation skill
Maintain visual consistency by using previous slide as reference image
Compose images into a professional PPTX file

Presentation Styles

Choose one of the following styles when creating the presentation plan:

Style	Description	Best For
glassmorphism	Frosted glass panels with blur effects, floating translucent cards, vibrant gradient backgrounds, depth through layering	Tech products, AI/SaaS demos, futuristic pitches
dark-premium	Rich black backgrounds (#0a0a0a), luminous accent colors, subtle glow effects, luxury brand aesthetic	Premium products, executive presentations, high-end brands
gradient-modern	Bold mesh gradients, fluid color transitions, contemporary typography, vibrant yet sophisticated	Startups, creative agencies, brand launches
neo-brutalist	Raw bold typography, high contrast, intentional "ugly" aesthetic, anti-design as design, Memphis-inspired	Edgy brands, Gen-Z targeting, disruptive startups
3d-isometric	Clean isometric illustrations, floating 3D elements, soft shadows, tech-forward aesthetic	Tech explainers, product features, SaaS presentations
editorial	Magazine-quality layouts, sophisticated typography hierarchy, dramatic photography, Vogue/Bloomberg aesthetic	Annual reports, luxury brands, thought leadership
minimal-swiss	Grid-based precision, Helvetica-inspired typography, bold use of negative space, timeless modernism	Architecture, design firms, premium consulting
keynote	Apple-inspired aesthetic with bold typography, dramatic imagery, high contrast, cinematic feel	Keynotes, product reveals, inspirational talks

Workflow

Step 1: Understand Requirements

When a user requests presentation generation, identify:

Topic/subject: What is the presentation about
Number of slides: How many slides are needed (default: 5-10)
Style: business / academic / minimal / keynote / creative
Aspect ratio: Standard (16:9) or classic (4:3)
Content outline: Key points for each slide
You don't need to check the folder under /mnt/user-data

Step 2: Create Presentation Plan

Create a JSON file in /mnt/user-data/workspace/ with the presentation structure. Important: Include the style field to define the overall visual consistency.

json

{
  "title": "Presentation Title",
  "style": "keynote",
  "style_guidelines": {
    "color_palette": "Deep black backgrounds, white text, single accent color (blue or orange)",
    "typography": "Bold sans-serif headlines, clean body text, dramatic size contrast",
    "imagery": "High-quality photography, full-bleed images, cinematic composition",
    "layout": "Generous whitespace, centered focus, minimal elements per slide"
  },
  "aspect_ratio": "16:9",
  "slides": [
    {
      "slide_number": 1,
      "type": "title",
      "title": "Main Title",
      "subtitle": "Subtitle or tagline",
      "visual_description": "Detailed description for image generation"
    },
    {
      "slide_number": 2,
      "type": "content",
      "title": "Slide Title",
      "key_points": ["Point 1", "Point 2", "Point 3"],
      "visual_description": "Detailed description for image generation"
    }
  ]
}

Step 3: Generate Slide Images Sequentially

IMPORTANT: Generate slides strictly one by one, in order. Do NOT parallelize or batch image generation. Each slide depends on the previous slide's output as a reference image. Generating slides in parallel will break visual consistency and is not allowed.

Read the image-generation skill: /mnt/skills/public/image-generation/SKILL.md

For the FIRST slide (slide 1), create a prompt that establishes the visual style:

json

{
  "prompt": "Professional presentation slide. [style_guidelines from plan]. Title: 'Your Title'. [visual_description]. This slide establishes the visual language for the entire presentation.",
  "style": "[Based on chosen style - e.g., Apple Keynote aesthetic, dramatic lighting, cinematic]",
  "composition": "Clean layout with clear text hierarchy, [style-specific composition]",
  "color_palette": "[From style_guidelines]",
  "typography": "[From style_guidelines]"
}

bash

python /mnt/skills/public/image-generation/scripts/generate.py \
  --prompt-file /mnt/user-data/workspace/slide-01-prompt.json \
  --output-file /mnt/user-data/outputs/slide-01.jpg \
  --aspect-ratio 16:9

For subsequent slides (slide 2+), use the PREVIOUS slide as a reference image:

json

{
  "prompt": "Professional presentation slide continuing the visual style from the reference image. Maintain the same color palette, typography style, and overall aesthetic. Title: 'Slide Title'. [visual_description]. Keep visual consistency with the reference.",
  "style": "Match the style of the reference image exactly",
  "composition": "Similar layout principles as reference, adapted for this content",
  "color_palette": "Same as reference image",
  "consistency_note": "This slide must look like it belongs in the same presentation as the reference image"
}

bash

python /mnt/skills/public/image-generation/scripts/generate.py \
  --prompt-file /mnt/user-data/workspace/slide-02-prompt.json \
  --reference-images /mnt/user-data/outputs/slide-01.jpg \
  --output-file /mnt/user-data/outputs/slide-02.jpg \
  --aspect-ratio 16:9

Continue for all remaining slides, always referencing the previous slide:

bash

# Slide 3 references slide 2
python /mnt/skills/public/image-generation/scripts/generate.py \
  --prompt-file /mnt/user-data/workspace/slide-03-prompt.json \
  --reference-images /mnt/user-data/outputs/slide-02.jpg \
  --output-file /mnt/user-data/outputs/slide-03.jpg \
  --aspect-ratio 16:9
 
# Slide 4 references slide 3
python /mnt/skills/public/image-generation/scripts/generate.py \
  --prompt-file /mnt/user-data/workspace/slide-04-prompt.json \
  --reference-images /mnt/user-data/outputs/slide-03.jpg \
  --output-file /mnt/user-data/outputs/slide-04.jpg \
  --aspect-ratio 16:9

Step 4: Compose PPT

After all slide images are generated, call the composition script:

bash

python /mnt/skills/public/ppt-generation/scripts/generate.py \
  --plan-file /mnt/user-data/workspace/presentation-plan.json \
  --slide-images /mnt/user-data/outputs/slide-01.jpg /mnt/user-data/outputs/slide-02.jpg /mnt/user-data/outputs/slide-03.jpg \
  --output-file /mnt/user-data/outputs/presentation.pptx

Parameters:

--plan-file: Absolute path to the presentation plan JSON file (required)
--slide-images: Absolute paths to slide images in order (required, space-separated)
--output-file: Absolute path to output PPTX file (required)

[!NOTE] Do NOT read the python file, just call it with the parameters.

Complete Example: Glassmorphism Style (最现代前卫)

User request: "Create a presentation about AI product launch"

Step 1: Create presentation plan

This is the start of the file. Read the full SKILL.md on GitHub.

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Source

SKILL.md in the repositoryChecking03-ai-agents/09-agents-in-production/skills/powerpoint/SKILL.md

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