# Slides > Create and edit presentation slide decks (`.pptx`) with PptxGenJS, bundled layout helpers, and render/validation utilities. Use when tasks involve building a new PowerPoint deck, recreating slides from screenshots/PDFs/reference decks, modifying slide content while preserving editable output, adding charts/diagrams/visuals, or diagnosing layout issues such as overflow, overlaps, and font substitu… - **Type:** Skill - **Install:** `agentstack add skill-fcakyon-claude-codex-settings-slides` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [fcakyon](https://agentstack.voostack.com/s/fcakyon) - **Installs:** 0 - **Category:** [Developer Tools](https://agentstack.voostack.com/c/developer-tools) - **Latest version:** 0.1.0 - **License:** Apache-2.0 - **Upstream author:** [fcakyon](https://github.com/fcakyon) - **Source:** https://github.com/fcakyon/claude-codex-settings/tree/main/plugins/openai-office-skills/skills/slides ## Install ```sh agentstack add skill-fcakyon-claude-codex-settings-slides ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # Slides ## Overview Use PptxGenJS for slide authoring. Do not use `python-pptx` for deck generation unless the task is inspection-only; keep editable output in JavaScript and deliver both the `.pptx` and the source `.js`. Keep work in a task-local directory. Only copy final artifacts to the requested destination after rendering and validation pass. ## Bundled Resources - `assets/pptxgenjs_helpers/`: Copy this folder into the deck workspace and import it locally instead of reimplementing helper logic. - `scripts/render_slides.py`: Rasterize a `.pptx` or `.pdf` to per-slide PNGs. - `scripts/slides_test.py`: Detect content that overflows the slide canvas. - `scripts/create_montage.py`: Build a contact-sheet style montage of rendered slides. - `scripts/detect_font.py`: Report missing or substituted fonts as LibreOffice resolves them. - `scripts/ensure_raster_image.py`: Convert SVG/EMF/HEIC/PDF-like assets into PNGs for quick inspection. - `references/pptxgenjs-helpers.md`: Load only when you need API details or dependency notes. ## Workflow 1. Inspect the request and determine whether you are creating a new deck, recreating an existing deck, or editing one. 2. Set the slide size up front. Default to 16:9 (`LAYOUT_WIDE`) unless the source material clearly uses another aspect ratio. 3. Copy `assets/pptxgenjs_helpers/` into the working directory and import the helpers from there. 4. Build the deck in JavaScript with an explicit theme font, stable spacing, and editable PowerPoint-native elements when practical. 5. Run the bundled scripts from this skill directory or copy the needed ones into the task workspace. Render the result with `render_slides.py`, review the PNGs, and fix layout issues before delivery. 6. Run `slides_test.py` for overflow checks when slide edges are tight or the deck is dense. 7. Deliver the `.pptx`, the authoring `.js`, and any generated assets that are required to rebuild the deck. ## Authoring Rules - Set theme fonts explicitly. Do not rely on PowerPoint defaults if typography matters. - Use `autoFontSize`, `calcTextBox`, and related helpers to size text boxes; do not use PptxGenJS `fit` or `autoFit`. - Use bullet options, not literal `•` characters. - Use `imageSizingCrop` or `imageSizingContain` instead of PptxGenJS built-in image sizing. - Use `latexToSvgDataUri()` for equations and `codeToRuns()` for syntax-highlighted code blocks. - Prefer native PowerPoint charts for simple bar/line/pie/histogram style visuals so reviewers can edit them later. - For charts or diagrams that PptxGenJS cannot express well, render SVG externally and place the SVG in the slide. - Include both `warnIfSlideHasOverlaps(slide, pptx)` and `warnIfSlideElementsOutOfBounds(slide, pptx)` in the submitted JavaScript whenever you generate or substantially edit slides. - Fix all unintentional overlap and out-of-bounds warnings before delivering. If an overlap is intentional, leave a short code comment near the relevant element. ## Recreate Or Edit Existing Slides - Render the source deck or reference PDF first so you can compare slide geometry visually. - Match the original aspect ratio before rebuilding layout. - Preserve editability where possible: text should stay text, and simple charts should stay native charts. - If a reference slide uses raster artwork, use `ensure_raster_image.py` to generate debug PNGs from vector or odd image formats before placing them. ## Validation Commands Examples below assume you copied the needed scripts into the working directory. If not, invoke the same script paths relative to this skill folder. ```bash # Render slides to PNGs for review python3 scripts/render_slides.py deck.pptx --output_dir rendered # Build a montage for quick scanning python3 scripts/create_montage.py --input_dir rendered --output_file montage.png # Check for overflow beyond the original slide canvas python3 scripts/slides_test.py deck.pptx # Detect missing or substituted fonts python3 scripts/detect_font.py deck.pptx --json ``` Load `references/pptxgenjs-helpers.md` if you need the helper API summary or dependency details. ## Source & license This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [fcakyon](https://github.com/fcakyon) - **Source:** [fcakyon/claude-codex-settings](https://github.com/fcakyon/claude-codex-settings) - **License:** Apache-2.0 Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/skill-fcakyon-claude-codex-settings-slides - Seller: https://agentstack.voostack.com/s/fcakyon - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.