markdown-video

markdown-video is a skill for Claude Code from jykim/claude-obsidian-skills. It costs 42 tokens per session (2,707 once invoked), scanned A, original, MIT.

A tool that turns Deckset-style Markdown slides, including speaker notes, into narrated MP4 presentation videos.

In plain words
What is it for?
Use it to create presentation videos with generated visuals and text-to-speech narration from Markdown slides.
Why use it?
It removes the need to assemble slide images, narration, and video timing by hand.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/lifidea/.claude/skills/markdown-video/generate_audio.py.

Good fit Use it to create presentation videos with generated visuals and text-to-speech narration from Markdown slides.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for markdown-video

README.md
[![agentmods](https://agentmods.dev/badge/skills/jykim/claude-obsidian-skills/markdown-video/github.svg)](https://agentmods.dev/skills/jykim/claude-obsidian-skills/markdown-video)
Your own site
<a href="https://agentmods.dev/skills/jykim/claude-obsidian-skills/markdown-video"><img src="https://agentmods.dev/badge/skills/jykim/claude-obsidian-skills/markdown-video/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for markdown-video

Your own site · 80×15
<a href="https://agentmods.dev/skills/jykim/claude-obsidian-skills/markdown-video"><img src="https://agentmods.dev/badge/skills/jykim/claude-obsidian-skills/markdown-video.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,707 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.02707
Opus 5 $0.00021 $0.01354
Sonnet 5 $0.00008 $0.00541
Haiku 4.5 $0.00004 $0.00271

Measured 11d ago against content hash 1d78c2d079f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

markdown-video scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (create_audio_mapping.py, create_section_video.py, create_slides_from_markdown.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

markdown-video/SKILL.md · 392 lines

How it starts

The opening of the file, as written. The whole thing — 392 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Markdown Video Skill

Convert markdown slides to presentation video with AI-generated visuals and TTS audio narration.

When to Use This Skill

Activate this skill when the user:

  • Asks to create video from markdown slides
  • Requests to convert presentation to MP4 format
  • Wants to generate narrated video from slides
  • Needs automated slide-to-video conversion

Key Features

  • Gemini AI-generated visuals: High-quality slide images with full emoji and Korean support
  • OpenAI TTS narration: Natural voice from speaker notes
  • Delta updates: Only regenerates changed slides (saves time and API costs)
  • Multiple visual styles: technical-diagram, professional, vibrant-cartoon, watercolor

Input Requirements

  • Markdown file with speaker notes marked with ^ prefix
  • GEMINI_API_KEY environment variable for image generation
  • OPENAI_API_KEY environment variable for TTS audio

Output Specifications

  • MP4 video: 1920x1080 (Full HD)
  • Duration: Each slide displays for duration of its audio narration
  • File naming: {input_filename}.mp4

Workflow

Step 1: Generate Audio Files

cd "{slides_directory}"
python /Users/lifidea/.claude/skills/markdown-video/generate_audio.py "{slides_filename}" --output-dir "audio"

Delta update: Only regenerates audio for slides with changed speaker notes.

  • Use --force to regenerate all audio files

Output:

  • audio/slide_0.mp3, slide_1.mp3, ... (0-indexed)
  • Cache file: audio/.audio_cache.json

Step 2: Generate Slide Images with Gemini

cd "{slides_directory}"
python /Users/lifidea/.claude/skills/markdown-video/create_slides_gemini.py "{slides_filename}" \
  --output-dir "slides-gemini" \
  --style "technical-diagram" \
  --auto-approve

Delta update: Only regenerates images for slides with changed content.

  • Use --force to regenerate all slide images

Style Options:

Style Description Best For
technical-diagram Clean lines, infographic icons, muted blue/gray Technical, education
professional Minimalist, geometric shapes Corporate, formal
vibrant-cartoon Bright gradients, flat design Marketing, startups
watercolor Soft pastels, organic shapes Creative, personal

Read the full file on GitHub · 392 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 392 lines · 42 tokens per session scan A 1d78c2d079f6

Subscribe to this mod's changes

markdown-video is a skill published in the GitHub repository jykim/claude-obsidian-skills (50 stars, last pushed 19d ago), licensed MIT. It adds 42 tokens to every session and 2,707 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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