/audio-mix-maker
Mix music/audio onto an existing video via ffmpeg. Modes: replace, overlay, duck (sidechain compressor lowers music under speech). Volume + fade controls. Pure ffmpeg, no API. Use when: 'mix this music onto the video', 'add background music to video', 'duck the music under
$ npx -y skills add Mikefluff/skills --skill audio-mix-maker --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.
- You can call itInvoke it directly when you want it.
- Slash command
/audio-mix-maker
Context preview
The summary Claude sees to decide when to auto-load this skill.
Mix music/audio onto an existing video via ffmpeg. Modes: replace, overlay, duck (sidechain compressor lowers music under speech). Volume + fade controls. Pure ffmpeg, no API. Use when: 'mix this music onto the video', 'add background music to video', 'duck the music under
42 skills for Claude Code that make content — and refuse to let it read like a machine made it. Prose editing that strips the tells. Prompt engineering for 40+ image, video and music models, with optional one-command execution against the real APIs.
Repo: Mikefluff/skills
Other skills on mikefluff-skills.
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Turn a user photo into N profile-pic / headshot / avatar variants in a consistent style. Identity-preserve focused, defaults to nano-banana-pro. Multi-aspect (square, square-tight, cover 4:5, story 9:16). Use when: 'make me an avatar', 'profile picture from this photo',
Open skill - /banner-maker
Banner-ad / display-creative generator with standard-size presets: Google Display (leaderboard, medium rectangle, mobile, skyscraper), LinkedIn, OG image, Twitter card, Facebook ad, header. Text-heavy ad aesthetic, ideogram-3-quality default. Use when: 'banner ad', 'display ad',
Open skill - /bg-remover
Background removal utility — image in, transparent PNG out. Wraps Replicate-hosted models (851-labs/background-remover default; alternatives via --replicate-model). Use when: 'remove the background', 'cut out the subject', 'transparent PNG', 'убери фон', 'вырежи фон с фотки'.
Open skill - /canon-check
Read-only story-bible auditor for fiction series with a documented canon. Cross-references character / artifact / location mentions in chapters against the bible and flags drift. Produces a drift report — never edits files. Use before opening or committing a chapter, or when
Open skill - /carousel-builder
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Open skill - /cold-email
Write or rewrite cold outreach emails to founders, VCs, recruiters, journalists, partners. 5-block structure (hook/value/ask/easy-yes/sign-off), ≤120-word budget, banned ceremony, anti-template subjects. Wraps `writer`. Use for first-touch, follow-up, intro request, warm-intro
Open skill