Echo Slides Skill

Use when extracting slides, PPT pages, or presentation screenshots from a video or YouTube talk; when a lecture, webinar, or conference recording needs its deck recovered as images; when someone asks to turn a talk recording back into slides, pull the deck out of a video, or get the PPT from a video; or when frame-grabbing a video produces hundreds of near-identical duplicates that need deduplicating. Also triggers on Chinese phrasings such as 扒 PPT, 把视频里的幻灯片提取出来, 从演讲录像还原幻灯片.

10 starsDocuments & Office Files

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add xiangzhouEcho/Echo-Slides-Skill --skill echo-slides-skill

Manual install

git clone --depth 1 https://github.com/xiangzhouEcho/Echo-Slides-Skill.git /tmp/Echo-Slides-Skill
mkdir -p ~/.claude/skills
cp -r /tmp/Echo-Slides-Skill/. ~/.claude/skills/echo-slides-skill

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Echo Slides Skill — Extract Video Slides

## Overview

Recover the slide deck from a talk recording as deduplicated images.

**Core principle:** a slide is a *stable interval*, not a frame. Detect intervals where the picture stops changing, take one frame from the middle of each, then dedupe every candidate against **all** slides kept so far.

## When to Use

- Lecture, webinar, conference talk, or course recording with slides
- Need the deck as images for notes, articles, or reference
- Naive frame extraction gave you hundreds of duplicates

**Not for:** videos without slides (dedup will grab arbitrary scene changes), or slide decks you can simply download as PDF.

## Quick Start

```bash
python3 scripts/extract_slides.py <url-or-file> -o slides
```

YouTube usually demands auth. When it does:

```bash
python3 scripts/extract_slides.py <url> -o slides --cookies-from-browser chrome
```

Writes `slide-001.png`, `slide-002.png`, … plus `slides.json` mapping each file to its timestamp.

## Why Naive Approaches Fail

Both of these were measured on real decks, not assumed.

| Approach | Failure |
|---|---|
| `ffmpeg select='gt(scene,N)'` | Presenter movement, cursor, and animations all fire scene changes. Subtle slide edits (title-only change) fire nothing. |
| Fixed-interval sampling | One slide shown 3 minutes → 90 identical frames at 2s sampling. |

Read the full skill on GitHub

Details

Skill name: echo-slides-skill
Repository: xiangzhouEcho/Echo-Slides-Skill
License: MIT
Repo updated: 10 August 2026

FAQ

What does the Echo Slides Skill skill do?

How do I install the Echo Slides Skill skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add xiangzhouEcho/Echo-Slides-Skill --skill echo-slides-skill. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Echo Slides Skill popular?

It lives in xiangzhouEcho/Echo-Slides-Skill, which has 10 GitHub stars and 0 forks.

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