Concept To Video

What it does

When your agent uses it

• : create a video
• Make an explainer
• Manim animation

Example prompts

• “create a video”
• “animate this”
• “make an explainer”
• “/concept-to-video”

Requirements

• Python 3

Workflow steps

7 steps, taken from the step headings in SKILL.md.

1. 1Ensure dependencies
2. 2Interpret the concept
3. 3Design the Manim scene
4. 4Preview render
5. 5Iterate
6. 6Final export
7. 75: Optional audio overlay

What it can do on your machine

Read from SKILL.md and the folder at commit 4594fb7. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/, which the agent can run.

  Shell commands in SKILL.md call:

  • python3
  • apt-get
  • pip

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use pip, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Concept To Video loads about 4.9k tokens when it runs, and up to ~24k if it reads all its reference files. Until then it costs about 72 tokens; SKILL.md has 1,473 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~72

When it runs · the whole SKILL.md, loaded when a task matches

~4.9k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~24k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from Mathews-Tom/armory at commit 4594fb7, republished under its MIT licence (© Mathews-Tom). 1,473 words, ~4,860 tokens.

name

concept-to-video

description

Turn concepts into animated explainer videos using Manim (Python) with MP4/GIF output, audio overlay, multi-scene composition. Triggers on: "create a video", "animate this", "make an explainer", "manim animation", "motion graphic". NOT for React video, use remotion-video.

metadata.version

1.2.0

metadata.category

visualization

metadata.tags

video, manim, animation, explainer

metadata.difficulty

advanced

Concept → Manim scene (.py) → Preview (low-quality) → Iterate → Final render (MP4/GIF)

# System deps (usually pre-installed)
apt-get install -y libpango1.0-dev libcairo2-dev ffmpeg 2>/dev/null

# Python package
pip install manim --break-system-packages -q

# DO: Use animation groups for simultaneous effects
self.play(FadeIn(box), Write(label), run_time=1)

# DO: Use .animate syntax for property changes
self.play(box.animate.shift(RIGHT * 2).set_color(GREEN))

# DO: Stagger related elements
self.play(LaggedStart(*[FadeIn(item) for item in items], lag_ratio=0.2))

# DON'T: Add/remove without animation (jarring)
self.add(box)  # Only for setup before first frame

# DON'T: Make animations too fast
self.play(Transform(a, b), run_time=0.3)  # Too fast to read

from manim import *

class ConceptScene(Scene):
    def construct(self):
        # === Section 1: Title / Setup ===
        title = Text("Concept Name", font_size=56, weight=BOLD)
        self.play(Write(title))
        self.wait(1)
        self.play(FadeOut(title))

        # === Section 2: Core animation ===
        # ... main content here ...

        # === Section 3: Summary / Conclusion ===
        # ... wrap-up animation ...
        self.wait(2)

python3 scripts/render_video.py scene.py ConceptScene --quality low --format mp4

python3 scripts/render_video.py scene.py ConceptScene --quality high --format mp4

# Background music at 25% volume with fade-in/out
python3 scripts/add_audio.py final.mp4 music.mp3 \
    --output final_with_audio.mp4 \
    --volume 0.25 --fade-in 2 --fade-out 3 --trim-to-video

# Voiceover at full volume, trimmed to video length
python3 scripts/add_audio.py final.mp4 voiceover.mp3 \
    --output final_narrated.mp4 --trim-to-video

# Instead of: MathTex(r"\frac{1}{n} \sum_{i=1}^{n} x_i")
# Use:        Text("(1/n) Σ xᵢ", font_size=36)

concept
  └─► plan_storyboard.py ──► storyboard.json
            │
            ▼
      fetch_assets.py (optional)
            │
            ▼
      coder writes scene.py
            │
            ▼
      render_video.py --max-fix-attempts N
            │  ▲
            │  └─ LLM fixup loop (on failure, up to N retries)
            ▼
      critic_pass.py --critic
            │  ▲
            │  └─ VLM layout patch (1 call with M image blocks)
            ▼
       final MP4

# 1. Plan
python3 scripts/plan_storyboard.py "explain transformer self-attention" \
    --output storyboard.json

# 2. (Optional) Fetch assets
python3 scripts/fetch_assets.py storyboard.json \
    --adapter local --asset-dir ./assets --output resolved.json

# 3. Coder writes scene.py (Claude writes this from storyboard.json)

# 4. Render with auto-fix
python3 scripts/render_video.py scene.py AttentionScene \
    --quality high --format mp4 --max-fix-attempts 3 \
    --output final.mp4

# 5. Critic pass
python3 scripts/critic_pass.py scene.py final.mp4 \
    --critic --critic-budget 40000 --frames 5

© Mathews-Tom, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 41 other files (scripts, references) in skills/concept-to-video of Mathews-Tom/armory.

• SKILL.md
• config.toml
• evals/cases.yaml
• pyrightconfig.json
• references/code2video/LICENSE
• references/code2video/coder.md
• references/code2video/critic.md
• references/code2video/planner.md
• references/rules/agent-interaction.md
• references/rules/algorithm-stepthrough.md
• references/rules/architecture-layers.md
• references/rules/audio-overlay.md
• references/rules/comparison.md
• references/rules/images.md
• references/rules/layout.md
• references/rules/math-concept.md
• references/rules/multi-scene.md
• … and 25 more

Open the folder on GitHubat commit 4594fb7