transcribe

transcribe is a skill for Claude Code, Codex from vellum-ai/vellum-assistant. It costs 16 tokens per session (358 once invoked), scanned A, original, MIT.

A tool for turning local audio and video files into written text using a configured speech-to-text service.

In plain words
What is it for?
Use it to transcribe meetings, interviews, calls, podcasts, lectures, and other MP3, WAV, M4A, MP4, or MOV files.
Why use it?
It removes the need to type recordings manually. It can extract audio from videos and split large files into smaller parts for processing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to transcribe meetings, interviews, calls, podcasts, lectures, and other MP3, WAV, M4A, MP4, or MOV files.

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Install with agentmods
npx agentmods add skills/vellum-ai/vellum-assistant/transcribe
About the project

Vellum Assistant is a personal AI assistant that remembers information about users, learns their preferences, and takes actions across connected apps. It is intended for people who want an assistant that can manage conversations, unfinished work, and proactive notifications over time. The catalogue skills, hooks, instruction, and setting configure or extend how the assistant works.

vellum-ai/vellum-assistant · 1,234 stars · on GitHub · vellum.ai

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 vellum-ai/vellum-assistant --skill transcribe
Clone the repo
git clone --depth 1 https://github.com/vellum-ai/vellum-assistant

Made for: Claude Code, Codex.

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 transcribe

README.md
[![agentmods](https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/transcribe/github.svg)](https://agentmods.dev/skills/vellum-ai/vellum-assistant/transcribe)
Your own site
<a href="https://agentmods.dev/skills/vellum-ai/vellum-assistant/transcribe"><img src="https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/transcribe/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.

agentmods 80×15 button for transcribe

Your own site · 80×15
<a href="https://agentmods.dev/skills/vellum-ai/vellum-assistant/transcribe"><img src="https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/transcribe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 358 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 $0.00016 $0.00358
Opus 5 $0.00008 $0.00179
Sonnet 5 $0.00003 $0.00072
Haiku 4.5 $0.00002 $0.00036

Measured 13d ago against content hash 8e50033d564e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

transcribe 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 13d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (tools/transcribe-media.test.ts, tools/transcribe-media.ts), 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.

assistant/src/config/bundled-skills/transcribe/SKILL.md · 30 lines

What it actually says

Transcribe audio and video files using the configured speech-to-text provider. Supports multiple STT providers including OpenAI Whisper, Deepgram, and Google Gemini — the active provider is selected in Settings under Speech-to-Text (services.stt).

Usage Notes

  • The tool accepts a file_path (absolute path to a local audio or video file) to transcribe.
  • Supported formats: any video (mp4, mov, etc.) or audio (mp3, wav, m4a, etc.) file.
  • For video files, audio is automatically extracted via ffmpeg before transcription.
  • Large files are automatically split into chunks for processing.
  • If no STT provider credentials are configured, the tool will return an error with setup instructions.
  • The STT provider (services.stt) is shared between transcription and telephony call paths.

Maintenance

When adding or modifying an STT provider, follow the onboarding checklist at assistant/docs/stt-provider-onboarding.md. That document covers the daemon catalog, config schema, adapter wiring, client catalog parity, and required tests.

Files

What ships with it

4 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. 13d ago First seen · 30 lines · 16 tokens per session scan A 8e50033d564e

Subscribe to this mod's changes

transcribe is a skill published in the GitHub repository vellum-ai/vellum-assistant (1,234 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 358 once invoked, about $0.0001 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.

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