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Slides · fcakyon | DecimalAI

design mediaby fcakyon

Slides

fcakyon/slides

Source fcakyon/claude-codex-settings ↗License Apache-2.0

Create and edit presentation slide decks (`.pptx`) with PptxGenJS, bundled layout helpers, and render/validation utilities.

SkillScore83Maintained

Automatic

Doc Ops pack

Last verified 8/14/2026

What it changes

Passed 17 of 20 test cases with the skill, and 10 of 20 without it.

Without skill48%

With skill83%

Checks it passed that the model alone missed

Specifies running detect_font.py with the json flag.
Specifies running slides_test.py on the presentation file.
Copies pptxgenjs_helpers into the local workspace directory.

and 5 more in the full report

8 fixed11 passed either way4 still failing0 broke

Pass-rate lift: +35 pp
Tokens: +2%
Agent turns: 0%
Response time: -55%

Model gemini-3.6-flashMeasured 8/14/2026v119 of 23 cases passed with skill · 20 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/fcakyon-slides/SKILL.md https://app.decimal.ai/s/fcakyon-slides/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add fcakyon-slides, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/fcakyon-slides/ and pins it in .decimal/skills.lock

decimalai skills add fcakyon-slides

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/fcakyon-slides/SKILL.md https://app.decimal.ai/s/fcakyon-slides/SKILL.md

Raw file: /s/fcakyon-slides/SKILL.md ↗ · machine-readable summary at /s/fcakyon-slides.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 8

Prompt

After rasterizing slides into PNG images in the 'rendered' directory, we need to create a single overview contact sheet graphic named 'overview_montage.png'. What command line invocation accomplishes this?

What was checked, without and with the skill
Checked	Without skill	With skill
Specifies executing create_montage.py with input directory and output file flags.	Missed	Passed

case-18 · gemini-3.6-flash · 8/14/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md66 lines7 filesincludes scripts

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

Inspect the request and determine whether you are creating a new deck, recreating an existing deck, or editing one.
Set the slide size up front. Default to 16:9 (LAYOUT_WIDE) unless the source material clearly uses another aspect ratio.
Copy assets/pptxgenjs_helpers/ into the working directory and import the helpers from there.
Build the deck in JavaScript with an explicit theme font, stable spacing, and editable PowerPoint-native elements when practical.
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.
Run slides_test.py for overflow checks when slide edges are tight or the deck is dense.
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.

Track record

Benchmark

17 / 20

test cases passed, vs 10 / 20 without

Adoption

Users: 1
Times used: 18

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

fcakyon / claude-codex-settings

plugins/openai-office-skills/skills/slides/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1Bundled 6 files · scripts

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Ready to supercharge your AI agents?

See it in action

What's inside

Slides

Overview

Bundled Resources

Workflow

Authoring Rules

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills