MasterSelects

MasterSelects - Browser-Based Media EditorProfessional media editor with local-first WebGPU rendering, audio tools, AI control, vector animation, and 3D support.AI Tool API (86 exported model tools)After the app loads, all tools are available via window.aiTools:

window.aiTools.execute(toolName, args) - Execute a tool, returns { success, data?, error? }

window.aiTools.list() - Get exported model tool definitions with parameter schemas

window.aiTools.status() - Quick timeline summary

Timeline Tools

getTimelineState - Get tracks, clips, playhead position, duration

setPlayhead(time) - Move playhead to time in seconds

setInOutPoints(inPoint?, outPoint?) - Set playback/export range

Clip Editing Tools

getClipDetails(clipId) - Full clip info with analysis, transcript, effects

splitClip(clipId, splitTime, withLinked?) - Split clip at timeline time (+ linked audio by default)

splitClipEvenly(clipId, parts, withLinked?) - Split into N equal parts (+ linked audio)

splitClipAtTimes(clipId, times[], withLinked?) - Split at multiple times (+ linked audio)

deleteClip(clipId, withLinked?) / deleteClips(clipIds[], withLinked?) - Delete clips (+ linked audio by default)

moveClip(clipId, newStartTime, newTrackId?, withLinked?) - Move clip (+ linked audio)

trimClip(clipId, inPoint, outPoint) - Trim source in/out points

cutRangesFromClip(clipId, ranges[]) - Cut out time ranges

reorderClips(clipIds[], withLinked?) - Reorder clips sequentially (+ linked audio)

Analysis & Transcript Tools

getClipAnalysis(clipId) - Motion, faces, colors data

getClipTranscript(clipId) - Word-level transcript with timestamps

findSilentSections(clipId, minDuration?) - Find speech pauses

findLowQualitySections(clipId, metric?, threshold?) - Find blurry/dark sections

startClipAnalysis(clipId) - Start background video analysis

startClipTranscription(clipId) - Start background transcription

getAudioDiagnostics - Read current audio route, proxy, and meter diagnostics

Preview & Frame Capture

captureFrame(time?) - Screenshot as base64 PNG

getCutPreviewQuad(cutTime) - 8-frame grid around a cut point

getFramesAtTimes(times[]) - Capture frames at specific times

Media Panel Tools

getMediaItems(folderId?) - List files, folders, compositions

createMediaFolder(name) / renameMediaItem / deleteMediaItem

moveMediaItems(itemIds[], targetFolderId?) - Move items

createComposition(name, width?, height?, frameRate?, duration?)

openComposition(compositionId) - Open in timeline

importLocalFiles / listLocalFiles - Local file bridge actions with allowed-root checks

YouTube / Download Tools

searchVideos(query, maxResults?, maxDuration?, minDuration?) - Search videos via yt-dlp

listVideoFormats(url) - Available download formats

downloadAndImportVideo(url, title) - Download and add to timeline

Other Tool Groups

executeBatch(actions[]) - Run multiple tools as a single undo point

listEffects, addEffect, updateEffect, removeEffect

getKeyframes, addKeyframe, removeKeyframe

play, pause, undo, redo, marker tools, transition tools, mask tools, stats tools, and Node Workspace debug/prompt tools

This application requires JavaScript and WebGPU (Chrome/Edge 113+).