Video Translate
calesthio/OpenMontage
Translate and dub existing videos into multiple languages using HeyGen.
Create a vocabulary learning lesson MulmoScript with multi-section structure (word display, examples with voiceover, explanation, review with translation).
Install Vocab Lesson
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install receptron/mulmocast-cli vocab-lesson --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/vocab-lesson .claude/skills/vocab-lesson && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .claude/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lessonType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install receptron/mulmocast-cli vocab-lesson --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/vocab-lesson .agents/skills/vocab-lesson && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .agents/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install receptron/mulmocast-cli vocab-lesson --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/vocab-lesson .cursor/skills/vocab-lesson && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .cursor/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/receptron/mulmocast-cli.git --path .claude/skills/vocab-lesson--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install receptron/mulmocast-cli vocab-lesson --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/vocab-lesson .gemini/skills/vocab-lesson && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .gemini/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install receptron/mulmocast-cli vocab-lessonInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/vocab-lesson .github/skills/vocab-lesson && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .github/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add receptron/mulmocast-cli --skill vocab-lesson -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install receptron/mulmocast-cli vocab-lesson --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/receptron/mulmocast-cli.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/vocab-lesson .opencode/skills/vocab-lesson && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "vocab-lesson" agent skill from https://github.com/receptron/mulmocast-cli/tree/main/.claude/skills/vocab-lesson into .opencode/skills/vocab-lesson/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vocab-lesson", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
vocab-lesson- GitHub stars
- 475
- Token cost
- ~3.1k tokens
- SKILL.md length
- 641 words
- Files
- 3
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- None found
At a glance
Create a vocabulary learning lesson MulmoScript with multi-section structure (word display, examples with voiceover, explanation, review with translation).
- Works in 4 steps: Content Generation → Create Initial Script (without timing) → Generate Audio & Calculate Timing → …
- The user wants to create vocabulary learning content with a lesson/presentation-style format rather than chat-style
- SKILL.md covers Phase 1: Content Generation, Phase 2: Create Initial Script…, Phase 3: Generate Audio &… and Phase 4: Generate Movie, plus 1 more section
- Runs TypeScript scripts from its folder; calls yarn and npx
What it does
Vocab Lesson is an agent skill from receptron/mulmocast-cli. Create a vocabulary learning lesson MulmoScript with multi-section structure (word display, examples with voiceover, explanation, review with translation). Use when the user wants to create vocabulary learning content with a lesson/presentation-style format rather than chat-style.
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `calc_lesson_timing.ts` and `calc_voiceover_timing.ts`).
It sits in Media & Creative, covering Text to speech and voice and Translation. It works with Tailwind CSS. The repository describes itself as: AI-powered podcast & video generator.
When your agent uses it
- The user wants to create vocabulary learning content with a lesson/presentation-style format rather than chat-style
- Tasks that involve Text to speech and voice
- Tasks that involve Translation
Example prompts
- “/vocab-lesson”
Requirements
- Node.js
- Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, Grep, Glob
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Content Generation
- Create Initial Script (without timing)
- Generate Audio & Calculate Timing
- Generate Movie
What it can do on your machine
Read from SKILL.md and the folder at commit 2a3ad8a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditBashGrepGlob
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (TypeScript), which the agent can run.
Shell commands in SKILL.md call:
yarnnpx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use yarn and npx, 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
Vocab Lesson loads about 3.1k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 641 words of instructions outside code blocks.
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
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Write, Edit, Bash, Grep, Glob
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); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 641 words (~3,112 tokens).
“Create a multi-section vocabulary learning video using MulmoCast. The video presents a word through structured phases: intro, word display, example sentences (voice_over), meaning explanation, and review with translations.”
- name
- vocab-lesson
- allowed-tools
- Read, Write, Edit, Bash, Grep, Glob
- argument-hint
- <word> (e.g., serendipity)
- user-invocable
- true
Files
SKILL.md and 2 other files in .claude/skills/vocab-lesson of receptron/mulmocast-cli.
- SKILL.md
- calc_lesson_timing.ts
- calc_voiceover_timing.ts
Open the folder on GitHubat commit 2a3ad8a
Compare with similar skills
Vocab Lesson next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Vocab Lesson this skillreceptron/mulmocast-cli | 475 | — | ~3.1k | Automated safety check: Notes | None | |
| Video Translatecalesthio/OpenMontage | 66k | — | ~2.7k | Automated safety check: Pass | AGPL-3.0 | |
| Video TranslationNoizAI/skills | 526 | — | ~1.3k | Automated safety check: Notes | None | |
| Adaptationdanjdewhurst/story-skills | 286 | 1 repos | ~3.5k | Automated safety check: Notes | MIT | |
| Edu Chem Videowy51ai/edulab | 1.4k | — | ~2.1k | Automated safety check: Notes | Apache-2.0 | |
| Video Translatorshang-zhu/violin | 1.1k | — | ~1k | Automated safety check: Notes | MIT |
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This skill should be used when the user asks to "make an audiobook", "narration script", "narrator", "ACX", "Findaway", "pronunciation guide", "how long is the audiobook", "adapt to a screenplay"…
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Related
Works with
Categories
Questions about Vocab Lesson
What does Vocab Lesson do?
Create a vocabulary learning lesson MulmoScript with multi-section structure (word display, examples with voiceover, explanation, review with translation). Vocab Lesson is an agent skill from receptron/mulmocast-cli. Create a vocabulary learning lesson MulmoScript with multi-section structure (word display, examples with voiceover, explanation, review with translation).
When should I use Vocab Lesson?
Vocab Lesson fits situations like: the user wants to create vocabulary learning content with a lesson/presentation-style format rather than chat-style; tasks that involve Text to speech and voice; tasks that involve Translation.
How do I install Vocab Lesson in Claude Code?
Run `npx skills add receptron/mulmocast-cli --skill vocab-lesson -a claude-code`. Or copy the skill folder (.claude/skills/vocab-lesson in receptron/mulmocast-cli) into .claude/skills/vocab-lesson in your project. Claude Code loads it when a task matches its description.
How do I install Vocab Lesson in Codex?
Run `npx skills add receptron/mulmocast-cli --skill vocab-lesson -a codex`. Or copy the skill folder (.claude/skills/vocab-lesson in receptron/mulmocast-cli) into .agents/skills/vocab-lesson in your project. Codex loads it when a task matches its description.
Can I use Vocab Lesson in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add receptron/mulmocast-cli --skill vocab-lesson -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vocab-lesson, .gemini/skills/vocab-lesson, .github/skills/vocab-lesson and .opencode/skills/vocab-lesson in your project.
What does Vocab Lesson need to run?
Going by SKILL.md and its folder, Vocab Lesson needs TypeScript for the scripts in its folder and the command-line tools its instructions call (yarn and npx). Our summary lists: Node.js. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash, Grep, Glob.
Does Vocab Lesson access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Vocab Lesson safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Vocab Lesson use?
No licence was found for Vocab Lesson or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Vocab Lesson use?
About 3.1k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Vocab Lesson?
Skills that share tags, products or a category with Vocab Lesson: Video Translate (calesthio/OpenMontage, 66k stars), Video Translation (NoizAI/skills, 526 stars), Adaptation (danjdewhurst/story-skills, 286 stars) and Edu Chem Video (wy51ai/edulab, 1.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Vocab Lesson?
receptron (a GitHub organization) maintains it in receptron/mulmocast-cli, which has 475 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 10, 2026.
Source: receptron/mulmocast-cli on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.