subtitle-burner SKILL.md skillA
subtitle-burner 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/subtitle-burner@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/subtitle-burner/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260803.e8ff76f, committed Aug 3, 2026
- Size
- 7,685 bytes
- Repository stars
- 25
- License
- MIT
Burn captions / subtitles onto a video via ffmpeg. Supports SRT, WebVTT, plain text. Presets: modern (white on black lower-third), minimal, bold (yellow, denser). Subcommands: burn, preview. Pure ffmpeg. Use when: 'add subtitles to my video', 'burn captions onto this MP4', 'subtitle my reel', 'добавь субтитры к видео', 'жёстко вшей субтитры'.
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> Burn captions onto an existing video file. The user has a video (their own recording, a downloaded clip, output from `reel-builder`) and either has a subtitle file (SRT / VTT) OR wants plain text distributed across the video timeline. Distinct from `reel-builder`: - reel-builder generates the video itself (T2V) + can optionally burn its own captions. - This skill takes an EXISTING video as input. No generation. This skill does NOT: - Generate the video — the input is yours. - Auto-transcribe audio to captions — requires Whisper, planned for a separate `transcribe` skill (see ROADMAP). - Translate captions between languages — pass already-translated subtitles. - Re-encode video at different resolutions / formats beyond what ffmpeg's drawtext requires (output matches input resolution + codec where possible). - Add audio (TTS overlay) — use `voiceover-maker` for that. - Mix multiple subtitle tracks — single track per run. Requires `ffmpeg` on PATH. install.sh offers to install it; otherwise `brew install ffmpeg` (Mac) / `apt-get install -y ffmpeg` (Debian). </objective> ## ROLE …
Read the whole file at its exact version.
How to install
mdr add mikefluff/skills/subtitle-burner@sha256:7aa5ceb1415be78bThe 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_3nqffdkgrylxdjtl)
3 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 (7685 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_3nqffdkgrylxdjtl GET https://markdownregistry.com/api/v1/resolve?ref=mikefluff/skills/subtitle-burner GET https://markdownregistry.com/api/v1/blob/7aa5ceb1415be78b5fe6e7fbcd7255bbc2adff4f8b000a03cdc0b05694e1456a
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.