Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add motlin/claude-code-plugins/plugin install narrationWrote 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.
[](https://agentmods.dev/skills/motlin/claude-code-plugins/narration)<a href="https://agentmods.dev/skills/motlin/claude-code-plugins/narration"><img src="https://agentmods.dev/badge/skills/motlin/claude-code-plugins/narration/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.
<a href="https://agentmods.dev/skills/motlin/claude-code-plugins/narration"><img src="https://agentmods.dev/badge/skills/motlin/claude-code-plugins/narration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00040 | $0.00671 |
| Opus 5.5 | $0.00016 | $0.00268 |
| Sonnet 5.5 | $0.00008 | $0.00134 |
| Haiku 4.5 | $0.00004 | $0.00067 |
Grade A, and why
narration 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 20d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Narration
Resolve <plugin-root> before running the bundled script: ${CLAUDE_PLUGIN_ROOT} in Claude Code; in Codex, the plugin root containing this skills/narration/SKILL.md. If GEMINI_API_KEY is not set, ask where the key lives; never print it or write it to a file.
Prepare the text
Extract only the prose to be read: drop navigation, bylines, footnote markers, comment sections, and subscription prompts. For a book, write a manifest with one entry per chapter:
{
"title": "The Example Book",
"author": "Alice Author",
"chapters": [
{ "title": "Chapter 1", "text": "First paragraph.\n\nSecond paragraph." },
{ "title": "Chapter 2", "text": "..." }
]
}
Each chapter title is spoken before its text. A single article is a manifest with one chapter. Keep the manifest and all output out of the repository's tracked files, and keep the source text out of the conversation.
Choose a voice on a short sample
Settle the voice and style on a few sentences before paying for a long narration:
python3 <plugin-root>/scripts/narrate.py voices \
--text-file sample.txt --output-directory voice-samples
Narrow it with --voices Charon,Kore. Add --style "professional audiobook narration" before voices to compare a style against the neutral samples on the same page. Tell the user the path to index.html and let them open it themselves.
Pace words are strong: "unhurried" slowed narration about 15%, and "brisk quick pace" sped it up 11% to 24%. Neutral delivery is already close to audiobook pace, so add a pace word only when the user asks for one, in their wording.
Narrate
Narrate one chapter first and let the user listen before narrating the rest:
python3 <plugin-root>/scripts/narrate.py --style "professional audiobook narration" book \
--manifest manifest.json --output-directory audiobook --voice Charon --chapters 1
Then run the same command without --chapters to get every chapter's MP3 plus book.m4b with chapter markers. Cached chunks are not billed again. Use a separate output directory for each voice or style variant so one never overwrites another. Report the output paths and total duration, and say when a run replaces an earlier version.
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.
- 20d ago First seen · 54 lines · 40 tokens per session scan A 52ba254b204b
narration is a skill published in the GitHub repository motlin/claude-code-plugins (20 stars, last pushed yesterday), licensed Apache-2.0. It adds 40 tokens to every session and 671 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-01.
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