openai-tts

openai-tts is a skill for Claude Code from sonichi/sutando. It costs 33 tokens per session (280 once invoked), scanned A, original, MIT.

A text-to-speech tool that turns supplied text into an MP3 audio file using OpenAI's speech service. Text-to-speech means generating spoken audio from written words.

In plain words
What is it for?
Use it to create voiceovers, video narration, or audio notes from text, with a selectable voice.
Why use it?
It removes the need to record narration manually or assemble a separate audio-generation workflow.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: positional $N argument.

Good fit Use it to create voiceovers, video narration, or audio notes from text, with a selectable voice.

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Install with agentmods
npx agentmods add skills/sonichi/sutando/openai-tts
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sonichi/sutando --skill openai-tts
Clone the repo
git clone --depth 1 https://github.com/sonichi/sutando

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 openai-tts

README.md
[![agentmods](https://agentmods.dev/badge/skills/sonichi/sutando/openai-tts.svg)](https://agentmods.dev/skills/sonichi/sutando/openai-tts)
Your own site
<a href="https://agentmods.dev/skills/sonichi/sutando/openai-tts"><img src="https://agentmods.dev/badge/skills/sonichi/sutando/openai-tts.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 280 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00033 $0.00280
Opus 5 $0.00016 $0.00140
Sonnet 5 $0.00007 $0.00056
Haiku 4.5 $0.00003 $0.00028

Measured 8d ago against content hash c1c74c644005, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

openai-tts 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/synthesize.sh), 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.

skills/openai-tts/SKILL.md · 37 lines

What it actually says

OpenAI TTS

Synthesize speech via OpenAI tts-1-hd. Reads OPENAI_API_KEY from .env.

This is offline synthesis — distinct from voice-agent's bidirectional Gemini Live audio.

Usage: /openai-tts [text]

ARGUMENTS: $ARGUMENTS

Voices

alloy, ash, coral (default), echo, fable, nova, onyx, sage, shimmer.

Examples

bash "$SKILL_DIR/scripts/synthesize.sh" -- "Hello, this is Sutando."
bash "$SKILL_DIR/scripts/synthesize.sh" --voice ash --out /tmp/intro.mp3 -- "Hi."

Default output path: results/openai-tts-{epoch}.mp3. Cost: ~$0.02 per 60s of narration.

If Invoked As A Slash Command

If ARGUMENTS is empty, ask the user for the text. Otherwise:

bash "$SKILL_DIR/scripts/synthesize.sh" -- "$ARGUMENTS"
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 37 lines · 33 tokens per session scan A c1c74c644005

Subscribe to this mod's changes

openai-tts is a skill published in the GitHub repository sonichi/sutando (393 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 280 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.