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OpenClaw
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Grok+17 agentsreel captions
Automates word-synced karaoke captions and styled subtitles for FableCut video projects.
Free
reel captions
Example session with this skill installed
I have a 1080x1920 reel project open. Can you add karaoke-style captions using this SRT file content? I want them to look 'Neon' and stay in the safe zone.
- Read your context and instructions
- Compiled the reel captions
I have analyzed the project dimensions and the provided SRT data. I will now group the text into readable lines, calculate the word rate for the karaoke animation, and apply the Neon style (Bebas Neue font with a cyan glow).
Captioning Plan: 9:16 Vertical Reel
| Line | Text | Start | Duration | Style |
|---|---|---|---|---|
| 1 | WELCOME TO THE FUTURE | 0.00s | 1.45s | Neon Karaoke |
| 2 | OF VIDEO EDITING | 1.52s | 1.20s | Neon Karaoke |
| 3 | WITH FABLECUT MCP | 2.80s | 1.65s | Neon Karaoke |
// Example of the patch operation generated for the project
{
"op": "addClip",
"track": "V3",
"kind": "text",
"props": {
"text": "WELCOME TO THE FUTURE",
"font": "Bebas Neue",
"fontSize": 84,
"uppercase": true,
"textAnim": "karaoke",
"wordRate": 0.36,
"color": "#ffffff",
"glow": 60,
"glowColor": "#22d3ee",
"y": 575
},
"start": 0,
"duration": 1.45
}
Next steps
- I will execute the
fablecut_patch_projecttool to inject these clips into your timeline. - Review the
wordRatein the FableCut preview to ensure the highlight matches the speaker's pace. - If the neon glow is too intense, we can adjust the
glowvalue orbgOpacity.
Connects securely to your tools. The creator never sees your data.
About this skill
The problem
Manually timing and styling captions for social clips is tedious and error-prone. Standard subtitle tools often lack the word-level synchronization needed for modern, high-retention karaoke effects.
What it does
- Syncs text clips to audio using word-level timestamps, SRT files, or manual scripts.
- Automates line grouping based on readability (2-4 words per line, max 1.8s duration).
- Applies platform-safe positioning to ensure text isn't covered by TikTok or Instagram UI elements.
- Configures dynamic animations like karaoke highlights, word-pops, and typewriter effects.
Frameworks & tools
Requires the FableCut MCP tools (fablecut_status, fablecut_get_project, fablecut_patch_project). Integrates with transcription data from Whisper, Deepgram, or standard SRT files.
Why this beats prompting it yourself
Writing JSON for dozens of timed text clips is a syntax nightmare. This skill applies specific typography rules, safe-zone math, and word-rate calculations that a general LLM would likely hallucinate or misalign.
Use cases
- Generating viral karaoke-style captions for vertical 9:16 reels.
- Adding clean, readable subtitles to long-form video projects.
- Creating emphasized "word-pop" highlights for key marketing hooks.
- Batch-shifting caption timings to align with audio offsets.
Known limitations
Requires an active FableCut project and external transcription data for precise syncing. Does not generate audio transcripts natively.
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
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- 2
Unzip into your skills folder
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- 3
Ask your agent to use it
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