How do I install the Cut Filler skill?

Run npx skillmds@latest add jperrello/cut-filler in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Cut Filler safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Cut Filler?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Cut Filler free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Cut Filler?

jperrello (@jperrello) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Cut Filler by jperrello — Agent Skill

Name: Cut Filler
Author: jperrello

Cut Filler

Apply a trim-filler keeps.json to a clip's video. Reads the kept time ranges and re-encodes the clip with ffmpeg select/aselect so kept ranges are concatenated and removed spans (filler, trail-offs, digressions) disappear. Output aligns with the trimmed transcript trim-filler wrote, so downstream subtitle / caption / title skills stay in sync.

jperrello b67a5e0 2 files · 4.3 KB Updated Sep 17, 2026

File contents

cut-filler

Video-side companion to trim-filler. Takes the clip-local keeps.json (a list of [t0, t1] ranges to keep) plus the input clip, and re-encodes a new clip containing only the kept ranges, concatenated in order.

Invoke

.claude/skills/cut-filler/cut-filler.sh <in_clip> <keeps.json> <out_clip>

in_clip — clip-local mp4 (post cut-clip + rebase, pre tighten-pace)
keeps.json — emitted by trim-filler
out_clip — written mp4 with filler ranges removed

How

Builds a single select / aselect filter expression over the keep ranges and re-encodes once with libx264 + AAC. If keeps covers the entire clip (nothing to cut), the input is copied through unchanged.

Idempotent via <out>.cfmeta (clip mtime + keeps mtime).

Pairs with

trim-filler — produces the keeps.json this skill consumes.

Caveats

Always re-encodes (ffmpeg select cannot stream-copy).
The trimmed transcript is written by trim-filler, not by this skill — downstream skills consume it directly.

Frequently asked questions