whisperx

whisperx is a skill for Claude Code, Codex from PrunaAI/pruna-skills. It costs 34 tokens per session (1,192 once invoked), scanned A, original, Apache-2.0.

An audio-timing workflow that finds timestamps for individual words in a recording. Word-level timing shows when each spoken or sung word starts and ends.

In plain words
What is it for?
Use it to align lyrics, set precise caption boundaries, and prepare timing data before burning captions into a video.
Why use it?
It makes captions and video cuts line up with the actual speech or lyrics instead of relying on rough sentence timings.

Skill for Claude CodeCodex

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

Good fit Use it to align lyrics, set precise caption boundaries, and prepare timing data before burning captions into a video.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/prunaai/pruna-skills/whisperx
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 PrunaAI/pruna-skills --skill whisperx
Clone the repo
git clone --depth 1 https://github.com/PrunaAI/pruna-skills

Made for: Claude Code, Codex.

Its marketplace also offers this one on its own, as the plugin whisperx/plugin install whisperx after adding the marketplace above.

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 whisperx

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/prunaai/pruna-skills/whisperx"><img src="https://agentmods.dev/badge/skills/prunaai/pruna-skills/whisperx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,192 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 warn 7 Sept 2026
SkillSpector: 9 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 18
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 19
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 21
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 35
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 36
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 37
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 86
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 87
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 88
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
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 $0.00034 $0.01192
Opus 5 $0.00017 $0.00596
Sonnet 5 $0.00007 $0.00238
Haiku 4.5 $0.00003 $0.00119

Measured today against content hash 026aeaf7c810, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

whisperx 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 today.

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/audio/whisperx/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prerequisites

Install and load these skills before generating (skip if already in context via @pruna):

Skill Description Install
generation-diversity Use when writing any generative prompt — ritual seed, explicit structure, scenario axes, and quality gates before paid API calls. npx skills add PrunaAI/pruna-skills@generation-diversity -y
pruna-api Use before any Pruna or Replicate HTTP call — credentials, upload/poll/download, parallel batches, and agent safety. npx skills add PrunaAI/pruna-skills@pruna-api -y

Or install the full suite once: npx skills add PrunaAI/pruna-skills@pruna -y

Follow each skill's Before generating / craft sections — do not restate guide content here.

Agent habit

In the first reply, name `whisperx` in backticks, confirm REPLICATE_API_TOKEN (or stop with signup links from pruna-api), then ask for required inputs. Open intake → generation-diversity clarification intake before the first POST. Redirect when When NOT to use fits better.

When NOT to use

Use a different skill instead:

Skill Description Install
music-2.5 Use when someone wants an original AI song with vocals — sung lyrics, a style prompt track, or source audio for a music video. npx skills add PrunaAI/[email protected] -y
gemini-3.1-flash-tts Use when someone needs spoken narration or voiceover — explainer tracks, documentary lines, or voice to pair with generated video. npx skills add PrunaAI/[email protected] -y
video-editing Use when assembling or polishing already-rendered clips with ffmpeg — concat, crossfades, burned captions and subtitles, text/logo overlays, before/after sliders, background music beds, platform export — or when composing a multi-layer HTML combination video with Hyperframes. Not for AI video generation, prompt craft, or model-based video edits. npx skills add PrunaAI/pruna-skills@video-editing -y

Read the full file on GitHub · 90 lines

Files

What ships with it

1 file 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. today Changed 026aeaf7c810
  2. 7d ago Changed ac7afb5ee7b9
  3. 11d ago First seen · 90 lines · 34 tokens per session scan A 3cb72f2d3365

Subscribe to this mod's changes

whisperx is a skill published in the GitHub repository PrunaAI/pruna-skills (17 stars, last pushed today), licensed Apache-2.0. It adds 34 tokens to every session and 1,192 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.

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