git:20260426.6d322e3 to git:20260807.74ef3d4

- description: "Create professional slide decks from topics or documents. Generates structured content with data-driven charts, speaker notes, and complete PPTX files. Applies persuasive storytelling principles (Pyramid Principle, assertion-evidence). Supports multiple formats (Marp, PowerPoint). Use for presentations, pitches, slide decks, or keynotes."

- # PPT Creator

-

- > **Goal**: Transform a simple topic into a presentation-ready, high-quality slide deck. When key information is missing, use the minimal intake form (references/INTAKE.md) to gather context or apply safe defaults. Then follow the workflow (references/WORKFLOW.md) to produce an outline, slide drafts, charts, and speaker notes. After generation, self-evaluate using the rubric (references/RUBRIC.md); if the score is < 75, automatically refine up to 2 iterations until ≥ 75 before delivery. See **Deliverables** section for final output structure.

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- ## When to Use This Skill

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- Use this skill when the user requests:

- - "Make a presentation/deck/PPT/slides" on any topic

- - "Improve/optimize a presentation/pitch/demo"

- - Converting scattered materials into a structured, persuasive slide deck

- - Creating presentations with data visualization and speaker notes

- - Building decks for business reviews, product pitches, educational content, or reports

-

- ## Quick Start

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- 1. **Gather Intent**: If critical information is missing, ask the **10 Minimal Questions** (references/INTAKE.md). If the user doesn't respond after 2 prompts, use the **safe default** for each item and clearly note assumptions in speaker notes.

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- 2. **Structure the Story**: Apply the **Pyramid Principle** to establish "one conclusion → 3-5 top-level reasons → supporting evidence." Each slide uses **assertion-style headings** (complete sentences), with body content providing evidence (charts/tables/diagrams/data points). Templates are in references/TEMPLATES.md

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- 3. **Choose Charts**: Use the **Chart Selection Dictionary** in references/VIS-GUIDE.md to pick the most appropriate visualization for each point. If the user provides data (tables/CSV), **optionally** call `scripts/chartkit.py` to generate PNG charts; otherwise, create placeholder diagrams with a list of required data fields.

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- 4. **Layout & Style**: Follow references/STYLE-GUIDE.md for font sizes, line spacing, white space, contrast ratios, color palettes, and accessibility (WCAG AA compliance).

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- 5. **Speaker Notes**: Generate 45-60 second speaker notes for each slide, structured as: opening → core assertion → evidence explanation → transition.

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- 6. **Self-Check & Score**: Use references/CHECKLIST.md for a pre-flight check, then score with references/RUBRIC.md If total score < 75, identify the weakest 3 items and refine; repeat scoring (max 2 iterations).

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- 7. **Deliverables** (all saved to `/output/`):

- - `/output/slides.md`: Markdown slides (Marp/Reveal.js compatible), with assertion-style headings + bullet points/chart placeholders + notes

- - `/output/assets/*.png`: Generated charts (if applicable)

- - `/output/notes.md`: Full speaker notes and delivery outline

- - `/output/refs.md`: Citations and data sources

- - `/output/presentation.pptx`: If `python-pptx` is available, export to PPTX; otherwise, keep Markdown and include instructions for "one-click conversion to PPTX" in the first screen (does not block delivery)

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- ## Orchestration Mode (End-to-End Automation)

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- When the user requests a "complete" or "presentation-ready" deliverable, ppt-creator automatically orchestrates the full pipeline: content creation → data synthesis → chart generation → dual-path PPTX creation (Marp + document-skills:pptx) → chart insertion. This typically delivers TWO complete PPTX files with different styling for user comparison.

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- **Activation**: Phrases like "complete PPTX", "final deliverable", "ready for presentation"

- **Duration**: 4-6 minutes (parallel execution)

- **Output**: presentation_marp_with_charts.pptx + presentation_pptx_with_charts.pptx

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- For orchestration details, see `references/ORCHESTRATION_OVERVIEW.md` (start here), then navigate to specialized guides as needed.

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- ## Core Principles (Must Follow)

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- - **Information Organization**: Conclusion first, then evidence (Pyramid Principle). Each slide conveys **only 1 core idea**. Headings must be **testable assertion sentences**, not topic labels.

- - **Evidence-First**: Use charts/tables/evidence blocks instead of long paragraphs; limit to 3-5 bullet points per slide.

- - **Data Visualization**: Chart selection and labeling (axes/units/sources) must comply with references/VIS-GUIDE.md If data is insufficient, provide "placeholder chart + list of missing fields."

- - **Accessibility**: Color and text contrast must meet AA standards (see STYLE-GUIDE). Provide alt/readable descriptions for charts and images.

- - **Reusability**: Use consistent naming, stable paths, reproducible output. Do not hard-code random numbers in code.

- - **Safety & Dependencies**: Do not scrape the web without permission. Only run scripts when user provides data. If `matplotlib/pandas` are unavailable, fall back to text + placeholder diagram instructions.

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- ## Workflow Overview

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- **Stage 0 - Archive Input**: Record user's original request, defaults used, and assumptions made.

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- **Stage 1 - Structure Goals**: Rewrite the goal into "who takes what action when" (clear CTA).

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- **Stage 2 - Storyline**: Use Pyramid Principle to define "one-sentence conclusion → 3-5 first-level reasons → evidence."

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- **Stage 3 - Outline & Slide Titles**: Create a 12-15 slide chapter skeleton. Each slide has one assertion-style heading.

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- **Stage 4 - Evidence & Charts**: Use the Chart Selection Dictionary from VIS-GUIDE. If data is provided, call chartkit.py to generate PNGs; otherwise, create placeholder + required field list.

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- **Stage 5 - Layout & Accessibility**: Apply STYLE-GUIDE for font sizes, spacing, contrast ratios, color palettes; unify units and decimal places.

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- **Stage 6 - Speaker Notes**: Generate 45-60 second notes per slide: opening → assertion → evidence explanation → transition.

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- **Stage 7 - Self-Check & Scoring**: Run CHECKLIST; score with RUBRIC. If score < 75, focus on weakest 3 items, refine, re-score (max 2 iterations).

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- **Stage 8 - Package Deliverables**: Generate `/output/` directory with slides.md / notes.md / refs.md / assets/*.png. If `python-pptx` is available, export PPTX.

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- **Stage 9 - Reuse Instructions**: Append a "5-step guide to replace data/colors with your own" at the end of notes.md.

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- ## Resources

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- ### references/INTAKE.md

- **Minimal 10-Item Questionnaire** (use defaults if missing):

- 1. Who is the audience? (Default: general public)

- 2. Core objective? (Default: "understand and accept" a proposition)

- 3. Desired action/decision? (Default: agree to move to next step after the meeting)

- 4. Duration & slide count limit? (Default: 15-20 min, 12-15 slides)

- 5. Tone & style? (Default: professional, clear, friendly)

- 6. Topic scope & boundaries? (Default: given topic + 1 layer related)

- 7. Must-include points/taboos? (Default: none)

- 8. Available data/tables? (Default: none; can generate structure placeholder + list required fields)

- 9. Brand & visual constraints? (Default: built-in neutral theme)

- 10. Deliverable format preference? (Default: slides.md + optional PNG charts; export PPTX if available)

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- ### references/WORKFLOW.md

- Detailed step-by-step process from "topic" to "presentation-ready output."

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- ### references/TEMPLATES.md

- **Slide Template Library** (assertion-evidence style):

- - Cover, Table of Contents, Problem Statement, Opportunity/Goal, Solution Overview, Evidence 1-3, Risk & Mitigation, Case Study/Comparison, Roadmap/Timeline, Conclusion & Actions, Backup Slides

- - Micro-templates: Comparison (A vs B), Pyramid Summary, Process 4-Step, KPI Dashboard, Geographic Distribution, Funnel, Pareto, Sensitivity, Cost Structure (Waterfall), Contribution (Stacked)

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- ### references/VIS-GUIDE.md

- **Data Visualization Selection & Labeling Standards**:

- - Chart Selection Dictionary (common questions → chart types)

- - Labeling & units (axes, units, data scope, time range; source in footer)

- - Accessibility & contrast (WCAG 2.1 AA: text vs background ≥ 4.5:1; UI elements ≥ 3:1)

- - Assertion-Evidence writing tips

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- ### references/STYLE-GUIDE.md

- **Layout & Style** (neutral theme, supports brand replacement):

- - Canvas: 16:9; safe margins ≥ 48px; grid column spacing 24px

- - Fonts: Chinese (Source Han Sans/PingFang/Hiragino Sans), English (Inter/Calibri)

- - Font sizes: Heading 34-40, Subheading 24-28, Body 18-22, Footer 14-16

- - Line spacing: Heading 1.1, Body 1.3; bullet spacing ≥ 8px

- - Color palette (AA compliant): Dark ink #1F2937 / Background #FFFFFF / Accent #2563EB / Emphasis #DC2626

- - Components: unified 6-8px border radius; charts and images with 8px padding

- - Images: add brief alt descriptions for screen readers

- - Page density: ≤ 70 words per slide (excluding captions)

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- ### references/RUBRIC.md

- **PPT Quality Scoring Rubric** (100 points; ≥ 75 to deliver):

- Each item scored 0-10:

- 1. **Goal Clarity**: Audience, objective, CTA well-defined

- 2. **Story Structure**: Pyramid structure complete, hierarchy clear

- 3. **Slide Assertions**: Headings are "assertion sentences" supported by evidence

- 4. **Evidence Quality**: Data/cases/citations sufficient, credible, consistent calibration

- 5. **Chart Fit**: Correct selection, complete labeling, readable

- 6. **Visual & Accessibility**: Contrast, font size, white space, color compliance

- 7. **Coherence & Transitions**: Natural chapter and page transitions

- 8. **Speakability**: 45-60 sec per slide, natural language

- 9. **Deliverables Complete**: slides.md / notes.md / refs.md / (optional) assets/*.png

- 10. **Robustness**: Gaps explicitly marked, fallback plan & next steps provided

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- Self-evaluation process: Run CHECKLIST first, then score each item and write top 3 low-scoring items + improvement actions. If total < 75, apply actions and re-score (max 2 iterations).

- ### references/CHECKLIST.md

- Pre-flight checklist for final quality assurance before delivery.

- ### references/EXAMPLES.md

- **Two Usage Examples**:

- - **Example A**: Ultra-simple topic ("coffee") → trigger minimal questionnaire, generate 12-page framework with placeholder charts

- - **Example B**: Small business monthly review with attached CSV → parse data, select charts per VIS-GUIDE, call chartkit.py, refine 1-2 iterations if score < 75

- ### scripts/chartkit.py

- **Minimal chart renderer** for ppt-creator.

- **Usage**:

- ```bash

- python scripts/chartkit.py \

- --data path/to/data.csv \

- --type line \

- --x date \

- --y sales profit \

- --out output/assets \

- --filename kpi_trend.png \

- --title "Monthly KPIs"

- ```

- **Notes**:

- - Requires: `pandas`, `matplotlib`

- - Fallback: If packages unavailable, print instruction message and exit(0)

- - Uses matplotlib defaults for readability (no hard-coded brand colors)

- ## Advanced Tips

- - This skill **complements** (not conflicts with) Anthropic's built-in PowerPoint generation capabilities. Use this skill to produce "high-quality structure & content," then optionally invoke system capabilities to export the final PPTX file.

- - For complex data analysis needs, combine with other skills (e.g., data analysis, charting) before invoking ppt-creator.

- - The skill is designed to be forgiving: missing information triggers safe defaults rather than blocking progress.