ClaudSkills / Growth & Marketing / conversion

Format Fix

Q: What is a Claude Code skill and how does the Format Fix skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Format Fix is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Growth & Marketing category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Growth & Marketing · Sub-category: conversion · Last updated: 2026-06-13

Use when audio files have the wrong/confusing format or won't load — 'this wav won't open in ffmpeg', 'convert these AIFFs to wav', 'resample to 48k', 'fix the 24-bit AIFF with a .wav name', 'Invalid PCM packet error'. Fixes the AIFF-as-.wav trap and does format/rate/bit-depth conversion with the right tools. Local shell, no MCP servers.

From the source SKILL.md

The trap, first. drum-prep writes its rendered stems as 24-bit AIFF carrying a .wav extension. ffmpeg/ffprobe sniff the container, not the byte order, so they read those files as little-endian PCM and emit garbage — Invalid PCM packet, static, or wrong-length output. Anything in phase-aligned/, ref-matched/, or auditions/ from drum-prep is suspect.

What this skill does

Format Fix is a community-contributed Claude Code skill in the conversion sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/format-fix/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when audio files have the wrong/confusing format or won't load — 'this wav won't open in ffmpeg', 'convert these AIFFs to wav', 'resample to 48k', 'fix the 24-bit AIFF with a .wav name', 'Invalid PCM packet error'.

Who uses this skill

The Format Fix Claude Code skill is built for growth marketers, product-led growth teams, founders running experiments, and performance marketing teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/format-fix
curl -L https://claudskills.com/skills/format-fix/SKILL.md \
  -o ~/.claude/skills/format-fix/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/format-fix/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/format-fix/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\format-fix\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Format Fix Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/format-fix/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Format Fix skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Format Fix skill?

Use Format Fix when your Claude Code task falls under the Growth & Marketing category — specifically in the conversion area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Format Fix" or describe the task and let Claude pick). Browse related skills at /category/growth/.

What is a Claude Code skill and how does the Format Fix skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Format Fix is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Growth & Marketing category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

Blankenship-Daniel. (2026). Format Fix [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/format-fix/

BibTeX

@misc{format-fix-2026,
  author    = {Blankenship-Daniel},
  title     = {Format Fix [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/format-fix/}
}

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Badge

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