audio-mix-maker SKILL.md skillA
audio-mix-maker from mikefluff/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mikefluff/skills/audio-mix-maker@git:20260803.e8ff76fPins git:20260803.e8ff76f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mikefluff/skills
- Path
skills/audio-mix-maker/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260803.e8ff76f, committed Aug 3, 2026
- Size
- 6,130 bytes
- Repository stars
- 25
- License
- MIT
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 voiceover', 'смешай музыку с видео', 'фоновая музыка для видео'.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<objective> Mix a music / audio track onto an existing video with ffmpeg-driven post-processing. Returns a new MP4 with the music mixed according to the chosen mode. Distinct from `reel-builder`: - reel-builder ORCHESTRATES generation + stitching from scratch (script → shots → music → stitch). This skill is JUST the final-mix step on assets you already have. - No script / no video / music generation — bring your own. Distinct from `subtitle-burner`: - subtitle-burner adds CAPTIONS. This skill adds AUDIO MIX. - Both are pure-ffmpeg utilities — they share the lightweight wrapper pattern. Distinct from `voiceover-maker`: - voiceover-maker GENERATES TTS. This skill MIXES audio onto video. This skill does NOT: - Generate music (use `music-prompt --execute` first) - Generate voiceover (use `voiceover-maker --execute` first) - Stitch multiple video clips (use `reel-builder` for that, or raw ffmpeg `concat`) - Cut / trim video segments (use ffmpeg / DaVinci Resolve / Premiere) - Sync audio to specific moments (use a NLE — Final Cut / Premiere / DaVinci) </objective> ## ROLE Read video + music + mode + volume/fade controls → run ffmpeg with the right filter chain → save mixed MP4. …
Read the whole file at its exact version.
How to install
mdr add mikefluff/skills/audio-mix-maker@sha256:add8be440f3c8626The line at the top of this page pins the label git:20260803.e8ff76f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_t26ywq5pqat2n5pz)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 3, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6130 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mikefluff/skills · 25 stars · license MIT · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t26ywq5pqat2n5pz GET https://markdownregistry.com/api/v1/resolve?ref=mikefluff/skills/audio-mix-maker GET https://markdownregistry.com/api/v1/blob/add8be440f3c86265629fb11f4e61031113ee9b74886c52a252651d1854055bd
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.