I Built "Cursor for Video Editing" – EditFast AI Agent

You know that feeling when Cursor suggests exactly the function you need, or when you type a comment and it just gets it and completes the entire implementation?

Well, I got jealous. Video editors are still doing everything manually like we’re coding in Notepad in 1995.

So I built EditFast – basically Cursor, but for video editing.

The Problem: Editors Are Still in the Stone Age

While you guys have AI that understands your codebase, suggests completions, and automates repetitive tasks, video editors are still:

  • Cutting clips one by one manually
  • Dragging effects from panels like it’s 2005
  • Doing the same color corrections on 50 clips
  • Manually syncing audio for hours

It’s like having to write every for loop from scratch. Every. Single. Time.

How EditFast Works (Think Cursor Context + Actions)

Just like Cursor understands your entire codebase, EditFast’s AI agent sees your complete project:

:white_check_mark: Full project context – Every clip, effect, timeline position, metadata
:white_check_mark: Direct manipulation – Doesn’t just suggest, actually does the work
:white_check_mark: Multi-step execution – Breaks complex tasks into atomic operations
:white_check_mark: Self-review – Checks its own output and suggests improvements

Real Example: The “Import and Clean” Workflow

Traditional editing (like coding without an IDE):

1. Import 40min interview video
2. Manually scrub through finding good moments
3. Cut each segment individually 
4. Remove "ums" and silent pauses one by one
5. Apply same color correction to each clip
6. Add titles manually
Total time: 4+ hours

With EditFast (like having Cursor autocomplete your entire function):

"Extract the 5 best moments from this interview, 
remove filler words, apply my brand colors, 
add descriptive titles"

Agent executes:
- Transcribes audio and identifies key moments
- Auto-removes filler words and dead space
- Creates 5 separate timeline projects
- Applies consistent branding and effects
- Generates contextual titles
Result: 5 polished clips in 10 minutes

The Technical Difference

Most “AI video tools” are like basic autocomplete – they make content or give suggestions.

EditFast is like Cursor’s deep understanding:

:brain: Context Awareness: Knows your entire project structure, not just the current clip
:high_voltage: Direct Execution: Actually manipulates timeline, effects, and media files
:counterclockwise_arrows_button: Iterative Improvement: Reviews output and refines automatically
:books: Pattern Learning: Adapts to your editing style over time

Features That Feel Like Magic

Transcription-Based Editing

Edit video by editing text. Delete words from transcript → automatically removes from timeline.

It’s like find/replace, but for video content.

Smart Auto-Corrections

Agent detects issues and fixes them:

  • “This talking head shot is too dark” → Auto-adjusts exposure
  • “Title overlaps speaker’s face” → Repositions automatically
  • “Audio levels inconsistent” → Normalizes across project

Why I Built This

I’ve been using Cursor for my side projects, and the productivity gain is insane. Then I’d switch to video editing and feel like I went back to vim without plugins.

Content creation is exploding – everyone needs video content constantly. But our tools are still designed for Hollywood productions with 6-month timelines.

We needed something that understands modern content velocity, just like Cursor understands modern development workflows.

Think of it this way:

  • Cursor = AI pair programmer that understands your codebase
  • EditFast = AI pair editor that understands your video project

Same concept, different domain. But video editing has way more visual complexity and real-time constraints.

Current Status

:rocket: Alpha version live with core AI agent functionality
:video_camera: Supports all major video formats, multi-track editing
:robot: AI Features: Auto-transcription, smart cuts, style transfer
:bullseye: Next: Advanced visual analysis, motion tracking integration


TL;DR: I got tired of video editing feeling like coding without IntelliSense, so I built the AI agent I wanted. It’s like having Cursor’s understanding and automation, but for video timelines instead of codebases.

Anyone else working on domain-specific AI tools? Would love to hear what you’re building!

P.S. – Fellow developers get early access if you want to try it out :eyes:

2 Likes

The tool: https://editfa.st/

I tried out you application and was really impressed. I think there is a lot of potential here. I can tell that this is quite a difficult project to tackle with a lot of technical challenges. I tried some basic video segmentation with the agent and it was able to call a tool to cut the video at the requested timestamp. But once it cut the video into a part 1 and part 2 the agent was unable to make additional edits because it got confused about which video to apply changes to after it had been segmented. But overall this is a great start and I appreciate the work you have put into this. I will check back in here for more updates. Excited to see what this turns into and would be happy to help test and build this app.