Claude Cursor Skill

pptx-slide-specification

Use when authoring or repairing a coordinate-explicit JSON specification for an editable PPTX deck.

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wshobson/agents 39771 4241 forks MIT Updated 12d ago

Part of wshobson/agents — 170 skills

Install

skills CLI npx skills add https://github.com/wshobson/agents/tree/main/plugins/pptx-deck-creation/skills/pptx-slide-specification

Claude Code claude plugin marketplace add https://llmmart.ai/marketplace.json && claude plugin install wshobson-agents@llmmart

Git git clone https://github.com/wshobson/agents.git

The skills CLI installs just this skill, for any of its supported agents. Claude Code installs the whole wshobson/agents collection as a plugin from our marketplace. Git is the plain clone.

Skill manifest

PPTX Slide Specification

Author final coordinates directly in layout_tree. No renderer may decide placement, shrink text, or infer layout after the audit.

Required contract

The root JSON contains summary and slides.
Every slide has a stable id, a message-led title, an accessibility reading order, and a complete layout_tree.
A layout tree declares slide size, root group, id-keyed groups and objects, final inch bboxes, styles, z-indexes, and classifications.
Every meaningful object has id, kind, role, classification, content, style, bbox, and z_index.
Production summary contains an explicit layout_policy (safe margin, content bottom, footer top, minimum gap) and accessibility metadata.

Authoring rules

Use stable readable IDs, absolute groups, and positive inch dimensions.
Keep normal content inside the safe margin and above the footer rail. Only background layout_design objects may be full bleed.
Use native text, shape, line, table, and image objects. Recreate labels and values from any supporting visual as native objects.
Give meaningful images alt text. Record source_ref for sourced claims.
Keep content text at 9 pt or greater; shorten, resize, or split dense content before reducing type.
Use shared grids, consistent gaps, explicit color, explicit font size, and an intentional z-order.

Build contract

A task-local builder starts from a blank slide layout and maps all bboxes with Inches(...). Explicitly set wrapping, disabled auto-size, text insets, anchors, alignment, fonts, colors, line settings, image aspect ratio, and hidden-slide state. Reject zero or negative geometry before adding an object.

See references/layout-contract.md for the compact schema and repair guidance.

Files (agents)

references

layout-contract.md 1.4 KB

# Layout Contract

A generated deck uses a JSON root with `summary` and `slides`. The final tree is an audit contract, not a rendering hint.

```json
{
  "summary": {
    "layout_policy": {
      "safe_margin": 0.5,
      "content_bottom": 6.7,
      "footer_top": 6.85,
      "minimum_gap": 0.12
    },
    "accessibility": {
      "language": "en-US",
      "presentation_title": "Quarterly operating review"
    }
  },
  "slides": [{
    "id": "s01_overview",
    "title": "Operating margin improves after the cost reset",
    "accessibility": { "reading_order": ["title"] },
    "layout_tree": {
      "slide_size": { "width": 13.333, "height": 7.5 },
      "root_group_id": "root",
      "groups": { "root": { "id": "root", "role": "slide", "layout_mode": "absolute", "object_ids": ["title"], "group_ids": [], "bbox": { "x": 0, "y": 0, "width": 13.333, "height": 7.5 } } },
      "objects": { "title": { "id": "title", "kind": "text", "role": "title", "classification": "content", "content": { "text": "Operating margin improves after the cost reset" }, "style": { "font_size": 30, "color": "#111827" }, "bbox": { "x": 0.75, "y": 0.55, "width": 10.8, "height": 0.65 }, "z_index": 2 } }
    }
  }]
}
```

## Repair order

1. Move or resize bboxes, change z-order, or split a dense slide.
2. Shorten copy or enlarge the available text bbox.
3. Change type size only as a last resort; content never drops below 9 pt.
4. Rebuild and compare actual object bounds with the contract.

SKILL.md 1.9 KB

---
name: pptx-slide-specification
description: "Use when authoring or repairing a coordinate-explicit JSON specification for an editable PPTX deck."
---

# PPTX Slide Specification

Author final coordinates directly in `layout_tree`. No renderer may decide placement, shrink text, or infer layout after the audit.

## Required contract

- The root JSON contains `summary` and `slides`.
- Every slide has a stable `id`, a message-led `title`, an accessibility reading order, and a complete `layout_tree`.
- A layout tree declares slide size, root group, id-keyed groups and objects, final inch bboxes, styles, z-indexes, and classifications.
- Every meaningful object has `id`, `kind`, `role`, `classification`, `content`, `style`, `bbox`, and `z_index`.
- Production `summary` contains an explicit `layout_policy` (safe margin, content bottom, footer top, minimum gap) and accessibility metadata.

## Authoring rules

1. Use stable readable IDs, absolute groups, and positive inch dimensions.
2. Keep normal content inside the safe margin and above the footer rail. Only background `layout_design` objects may be full bleed.
3. Use native `text`, `shape`, `line`, `table`, and `image` objects. Recreate labels and values from any supporting visual as native objects.
4. Give meaningful images alt text. Record `source_ref` for sourced claims.
5. Keep content text at 9 pt or greater; shorten, resize, or split dense content before reducing type.
6. Use shared grids, consistent gaps, explicit color, explicit font size, and an intentional z-order.

## Build contract

A task-local builder starts from a blank slide layout and maps all bboxes with `Inches(...)`. Explicitly set wrapping, disabled auto-size, text insets, anchors, alignment, fonts, colors, line settings, image aspect ratio, and hidden-slide state. Reject zero or negative geometry before adding an object.

See `references/layout-contract.md` for the compact schema and repair guidance.