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Create a narrated HTML explainer with measured audio timing, synchronized captions, scene builds, chapters, and transcript. Use for a single-narrator explainer, not an MP4 export.

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yuya-takeyama/agent-plugins
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October 17, 2026 at 21:04
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name
video
description
Create a narrated HTML explainer with measured audio timing, synchronized captions, scene builds, chapters, and transcript. Use for a single-narrator explainer, not an MP4 export.
# video Resolve all bundled paths from this SKILL.md file, never from a hard-coded agent installation directory. The plugin root is two directories above this skill. The complete `yes` plugin is the supported installation unit. Write and revise local source files. Deliver a single self-contained HTML file by default, or an HTML + assets bundle when requested. Keep essential viewing features usable without network access or persistent storage. Do not upload, publish, or change visibility unless requested. Review the actual rendered output on desktop and mobile; report unavailable checks honestly. Read [the authoring guide](references/authoring.md) for schemas and runtime behavior. Japanese terms of art follow [one form per term](../../references/terms-ja.md). List primary references in `script.json` as `"sources": [{"title": "…", "url": "https://…", "note": "optional"}]`. They appear as 出典 links in the expandable description, including inside a course. `lint` and `build` reject missing titles and URLs other than absolute HTTP(S) URLs. Run `uv run <this-skill-dir>/build.py build <project-dir>`. Add `--format bundle` for a sibling `<name>-bundle/index.html` and assets directory; otherwise the output is one HTML file. `--max-bytes N` optionally enforces a host limit. Audio uses the plugin's `../../bin/yes-speak` wrapper by default. It starts and reuses a local Docker VOICEVOX Engine. Docker must be installed and running; the first build downloads the engine image. See the plugin's `../../README.md` for startup, voice selection, and stopping the engine. Other speech sources replace it (details in the authoring guide): - `YES_TTS_CMD` — a command with the yes-speak flags and WAV contract (`EV_TTS_CMD` is an alias), e.g. a VOICEVOX engine elsewhere (a remote server, a cloud function). YES applies the same voice restriction, credits and terms as with the bundled engine. - `YES_TTS_FILES=1` with `YES_TTS_ENGINE` — no command: `build.py tts-plan` lists each sentence and the WAV path to write (from an MCP speech tool, another machine), and `build` reads those files. A command is treated as VOICEVOX unless `YES_TTS_ENGINE=other` declares a different engine; then set `"credit"` (and `usageTerms`) in script.json. Never declare VOICEVOX output as `other`. Run `lint`, then `build`, then `shoot`, and inspect every scene screenshot. `check` drives the built page (maximize, fallback) and must print only `ok`. The screenshot command uses installed Chrome; `YES_BROWSER_CHANNEL=''` selects Playwright Chromium instead. Review pronunciation and the standalone transcript. Keep VOICEVOX credits in the generated page. Read [voice and artwork conditions](../../THIRD_PARTY_NOTICES.md) before selecting a voice or distributing its output. Preserve the generated usage terms in the description. With `YES_TTS_ENGINE=other`, supply the engine's actual `usageTerms: {text, links: [{title, url, note}]}` in script.json along with its credit; these are displayed without assuming the custom engine is VOICEVOX.
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