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SKILL.md

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+---
+name: Powerpoint / PPTX
+slug: powerpoint-pptx
+version: 1.0.1
+homepage: https://clawic.com/skills/powerpoint-pptx
+description: "创建、检查和编辑Microsoft PowerPoint演示文稿。"
+changelog: Rebalanced the skill toward template inventory, layout mapping, and higher-signal QA after a stricter external audit.
+metadata: {"clawdbot":{"emoji":"📊","requires":{"bins":[]},"os":["linux","darwin","win32"]}}
+---
+
+## When to Use
+
+Use when the main artifact is a Microsoft PowerPoint presentation or `.pptx` deck, especially when layouts, templates, placeholders, notes, comments, charts, extraction, editing, or final visual quality matter.
+
+## Core Rules
+
+### 1. Choose the workflow before touching the deck
+
+- Reading text, editing an existing deck, rebuilding from a template, and creating from scratch are different jobs with different failure modes.
+- For text extraction or inspection, read the deck before editing it.
+- Text extraction plus thumbnail-style visual inspection is safer than editing from shape assumptions alone.
+- For template-driven work, inventory the deck before replacing content.
+- For deep edits, remember a `.pptx` file is OOXML with separate parts for slides, layouts, masters, media, notes, and comments.
+- If a template exists, template fidelity beats generic slide-design instincts.
+- Reusing or duplicating a good existing slide is often safer than rebuilding it and hoping the theme still matches.
+
+### 2. Inventory the deck before replacing content
+
+- Count the reusable layouts, real placeholders, notes, comments, media, and recurring typography or color patterns first.
+- Placeholder indexes and layout indexes are not portable assumptions.
+- Inspect the actual slide or template before targeting title, body, chart, or image shapes.
+- Speaker notes, comments, and linked assets can live outside the visible slide surface.
+- A missing or wrong placeholder target can silently land content in the wrong box or wrong layer.
+- Master and layout settings can override local slide edits, so the visible problem is not always on the slide you are editing.
+
+### 3. Match content to the actual placeholders
+
+- Count the actual content pieces before choosing a layout.
+- Pick layouts based on the real number of ideas, columns, images, or charts the slide needs.
+- Do not force two ideas into a three-column slide or cram dense text under a chart.
+- Category counts and data series lengths must match or charts will break in ugly ways.
+- Explicit sizing beats wishful thinking: text boxes, images, and charts need real space, not "it should fit".
+- Do not choose a layout with more placeholders than the content can meaningfully fill.
+- Quote layouts are for real quotes, and image-led layouts are for slides that actually have images.
+- For chart-, table-, or image-heavy slides, full-slide or two-column layouts are usually safer than stacking dense text above the visual.
+
+### 4. Preserve the deck's visual language
+
+- Theme, master, and layout files usually decide fonts, colors, and hierarchy more than any one slide does.
+- Start from the deck's actual theme, fonts, spacing, and aspect ratio instead of improvising a new style.
+- Reuse the deck's own alignment and spacing system instead of inventing a second visual language.
+- Use common fonts for portability and strong contrast for readability.
+- Preserve the template's visual logic first; originality matters less than not breaking the deck's existing language.
+- Combining slides from multiple sources requires normalizing themes, masters, and alignment afterward.
+
+### 5. Run content QA and visual QA separately
+
+- Text overflow, bad alignment, clipped shapes, weak contrast, and placeholder leftovers are normal first-pass failures.
+- Run both content QA and visual QA; missing text and broken layout are different failure classes.
+- Render or inspect the actual deck output before delivery when layout matters.
+- Search for leftover template junk, sample labels, and placeholder text before calling the deck finished.
+- Check notes, comments, labels, legends, and chart/table semantics separately from the visual pass.
+- A deck can pass text extraction and still fail on overlap, clipping, wrong theme inheritance, or broken notes.
+- Thumbnail grids and rendered slides usually reveal layout bugs faster than code or text inspection.
+- Assume the first render is wrong and do at least one fix-and-verify cycle before calling the deck finished.
+- Re-check affected slides after each fix because one spacing change often creates another issue.
+
+### 6. Keep decks portable and review-safe
+
+- Template masters can override direct edits in surprising ways.
+- Complex effects may degrade across PowerPoint, LibreOffice, and conversion pipelines, so keep important content robust without them.
+- Image sizing, font substitution, and placeholder mismatch are common reasons a deck looks good in code and bad on screen.
+- Notes, comments, linked media, and merged decks can stay broken even when the visible slide looks fine.
+
+## Common Traps
+
+- Placeholder text and sample charts often survive template reuse if not explicitly replaced.
+- Directly editing one slide can fail if the real issue lives in the master or layout.
+- Charts, icons, and text boxes need enough space; near-collisions are usually visible only after rendering.
+- Layout indexes vary by template, so built-in assumptions from one deck often break in another.
+- A missing placeholder or wrong shape target can silently put content in the wrong place.
+- Counting the text ideas after choosing the layout usually leads to empty placeholders, weak hierarchy, or leftover template junk.
+- Font substitution can move line breaks and wreck careful spacing.
+- Speaker notes, comments, and linked media can stay broken even when the visible slide looks fine.
+- A deck can pass text inspection and still fail visually because of overlap, contrast, or edge clipping.
+- Editing from one slide alone can miss the real source of truth in the theme, master, or layout definitions.
+- Choosing a quote, comparison, or multi-column layout without matching content usually makes the deck look templated rather than intentional.
+- Combining or duplicating slides without checking masters and themes can create subtle inconsistency slide by slide.
+- Aspect-ratio mismatches like `16:9` versus `4:3` can shift every placement decision even when each slide looks locally reasonable.
+
+## Related Skills
+Install with `clawhub install <slug>` if user confirms:
+- `documents` — Document workflows that often feed presentation content.
+- `design` — Visual direction and layout decisions.
+- `brief` — Concise business messaging for slide narratives.
+
+## Feedback
+
+- If useful: `clawhub star powerpoint-pptx`
+- Stay updated: `clawhub sync`