video-trimmer

Trim video segments to exact start and end times using FFmpeg.

Updated Jan 30, 2026
One-click install
npx skills add https://github.com/akrindev/trimer-clip --skill video-trimmer
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: video-trimmer
Source: https://github.com/akrindev/trimer-clip/tree/main/skills/video-trimmer
Command: npx skills add https://github.com/akrindev/trimer-clip --skill video-trimmer

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Trimming and clipping videos precisely to extract exact moments or remove unwanted sections is a common bottleneck in video workflows, especially when preparing highlights or social media clips.

Core Features & Use Cases

  • Precise trimming: cut video to exact start and end times with optional re-encoding for quality
  • Mode versatility: choose stream copy for speed or re-encode for frame-accurate results
  • Batch trimming: trim multiple segments from a single video using the trim_multiple workflow
  • Integration-ready: coordinates with other skills like portrait-resizer and subtitle-overlay for end-to-end workflows
  • Use Case: quickly extract a 15-second highlight from a long video and export as a standalone clip.

Quick Start

Provide a video file path, start time, and end time to generate a trimmed clip.

Frequently Asked Questions about video-trimmer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I trim a video by timestamp to extract highlights?▼

To trim a video by timestamp, provide the video file path, start time, and end time to generate a clean clip. The Skill uses FFmpeg to cut exactly the segments you need for your highlights.

What is the difference between stream copy and re-encode modes for video trimming?▼

Stream copy trims video quickly without re-processing, while re-encode mode ensures frame-accurate results. Choose stream copy for speed or re-encode when you need precise cuts at exact timestamps.

Can I cut multiple clips from a single video in one batch?▼

Yes, you can cut multiple clips from a single video using the batch-processing trim_multiple workflow. This allows you to extract several segments from one long video efficiently.

Does this video trimming tool require FFmpeg to be installed?▼

Yes, the video trimming tool requires FFmpeg because it relies on FFmpeg-based tools to process videos, validate inputs, and produce clean clips. It exposes script-level interfaces built on top of it.

Why does my trimmed video have inaccuracies at the start or end frames?▼

Video trimming inaccuracies at the start or end frames happen when using stream copy mode. Switch to re-encode mode to enforce frame-accurate cuts and ensure your clips start exactly at the specified timestamp.

What's the best way to automate extracting short clips from long videos?▼

The best way to automate extracting short clips is using script-level interfaces for single and multiple trims. The Skill enforces input validation and supports batch processing to automate clip creation.