Calesthio

Transcribe audio and video with ElevenLabs Scribe v2 in over 90 languages. Identify different speakers and capture word timings for meeting records, interviews, and subtitle preparation, with live transcription also covered.

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• Transcribing meeting recordings with speaker labels
• Preparing timed text for video subtitles
• Transcribing interviews with specialized terms

Create Three.js shapes, custom meshes, 3D text, and point clouds. Explains vertex editing and geometry utilities, plus instancing, a technique for efficiently drawing many copies of the same shape with different positions, sizes, or colors.

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• Creating basic solids and path-based 3D shapes
• Building and modifying custom meshes
• Displaying 3D text, point clouds, and wireframes

Style Three.js objects with realistic, cartoon, or custom materials. Choose material types, adjust textures and reflections, create glass or metal effects, and use shader code for custom appearance while considering rendering performance.

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• Give 3D objects metal or glass surfaces
• Create cartoon-style shading
• Adjust textures and environmental reflections

Generate sound effects and ambient audio from written descriptions using ElevenLabs. Create cinematic impacts, app notification sounds, or background textures, with controls for duration, seamless looping, and how closely the sound follows the description.

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• Create impact sounds for videos
• Generate looping rain or forest ambience
• Make notification sounds for apps

Create explainer, demo, or marketing videos from a written idea using HeyGen's Video Agent. It handles scripts, avatars, visuals, voiceover, pacing, and captions, then provides a download URL when generation finishes.

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• Create a product demo from a written description
• Turn an explanatory topic into a video
• Draft a marketing video

Guides agents working on Remotion videos built with React to relevant rules and code examples. It covers animation, captions, audio, scene transitions, charts, asset handling, and other common tasks involved in composing and adjusting a video.

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• Add captions and animated text to a Remotion video
• Adjust audio timing, volume, and scene transitions
• Build animated charts or audio visualizations

Inspect video content locally by extracting frames with ffmpeg and transcribing speech with Whisper. The skill produces timestamped image paths, transcript segments, and video details in JSON, giving an agent material for visual review without requiring API keys.

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• Reviewing scenes and speech in a local video
• Transcribing video audio without API keys
• Extracting frames at scene changes or regular intervals

Translate and dub existing videos with HeyGen to create versions in multiple languages. Preserve the speaker’s voice characteristics, match lip movements to translated speech, or choose audio-only translation without adjusting the video’s lip movements.

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• Create multilingual versions of a product demo
• Dub videos with matching lip movements
• Translate audio without changing lip movements

Build asset loading for Three.js scenes, including 3D models, textures, and HDR images for backgrounds and reflections. Coordinate multiple files, track loading progress, reuse cached assets, and handle failures with retries or fallback files.

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• Load GLTF/GLB models into a Three.js scene
• Show loading progress across multiple assets
• Use HDR images for backgrounds and reflections

Create a reusable design guide covering colors, typography, layout, and motion. Extract styles from existing sources or start from scratch, then turn the guide into instructions or code for supported video, slide, and design tools.

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• Creating a design guide from a desired mood
• Extracting visual rules from a website or brand PDF
• Applying one style to videos, slides, and designs

Set up lighting and shadows in Three.js scenes. Choose light types, create outdoor or studio lighting, use environment images to illuminate materials, and tune shadow settings to balance appearance with rendering performance.

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• Create sunlight and sky lighting outdoors
• Set up studio or three-point lighting
• Use HDR images for environment lighting

Create instrumental tracks, songs with lyrics, background music, and jingles using the ElevenLabs Music API. Describe the sound and duration, or edit a structured composition plan to control musical styles and sections.

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• Creating background music for a video
• Generating a song with lyrics
• Making a short jingle

Create mathematical animations in ManimGL using Python, with guidance for equations, graphs, 3D scenes, and camera movement. Includes interactive development workflows, examples, and templates for testing changes and rendering scenes to video.

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• Animate equations and mathematical derivations
• Visualize functions and graphs
• Build 3D scenes with camera movement

Integrate FLUX image generation and editing into applications through the BFL API. The guide covers authentication, checking asynchronous results, completion notifications through webhooks, request limits, error handling, regional endpoints, and downloading generated images before their URLs expire.

中文简介正在准备中。当前显示英语简介。

• Add FLUX image generation and editing to an application
• Implement result checks and completion notifications
• Handle request limits and API errors

Build Remotion videos using the toolkit’s shared backgrounds, comparison layouts, presenter overlays, and custom scene transitions. Apply its 30fps timing conventions and rendering practices to assemble scenes and coordinate them with voiceover.

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• Add glitch or light-leak scene transitions
• Show two videos side by side
• Overlay a presenter or corner logo

Create 3D objects from text or images, choose catalog assets for repeated scenery, and inspect the results in Blender. The workflow checks geometry, materials, scale, and ground contact while recording asset sources and generation costs.

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• Create a unique 3D object from a text description
• Reconstruct a 3D object from a concept image
• Populate scenery with catalog vegetation and rocks

Refactor React components with too many true-or-false options into reusable parts. Provides guidance on component composition, shared state, and flexible interfaces, with examples of good and problematic implementations and specific guidance for React 19.

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• Refactoring components with too many boolean options
• Designing reusable component libraries
• Reviewing shared state and component architecture

Create short video clips from text or still images with LTX-2.3 22B. Generate supporting footage, animated backgrounds, or moving portraits while specifying camera motion, lighting, dimensions, and duration, with clips around five seconds by default.

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• Generate supporting footage for narrated videos
• Add subtle motion to slide backgrounds
• Animate still portraits

Write, review, and refactor React and Next.js code using performance guidelines from Vercel. Prioritized rules help identify sequential data requests, oversized JavaScript bundles, unnecessary re-renders, and other opportunities to improve loading and responsiveness.

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• Reviewing React components for performance issues
• Improving data fetching in Next.js pages
• Reducing JavaScript bundle size

Turn a math or science video idea into a detailed scene plan. Research the topic, clarify the audience, and outline visuals, narration, transitions, and implementation notes for Manim, an animation tool.

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• Turn a rough explainer idea into a scene plan
• Plan intuitive math and science visuals
• Adapt video depth to the audience

Replace a face in a video using a source photo and the HeyGen API. The skill covers submitting image and video URLs, checking processing status, and retrieving the finished video, including workflows that personalize generated avatar videos.

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• Replace a face in a recorded video
• Personalize an avatar video with a face photo
• Track processing and retrieve the finished video

Apply Disney's 12 animation principles to Lottie vector animations exported from After Effects. Use guidance on keyframes, motion paths, and playback controls to shape anticipation, timing, secondary actions, and interactive movement.

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• Adding anticipation and squash-and-stretch to an animation
• Adjusting playback speed and frame ranges
• Coordinating main and secondary animations

Configure images and videos as surface textures in Three.js, and use environment images for backgrounds and reflections. Adjust placement, color settings, repetition, and filtering, then manage texture memory through compression, reuse, and disposal.

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• Adjust image placement and tiling on 3D surfaces
• Use HDR images for backgrounds and reflections
• Apply video or Canvas content to a 3D surface

Download videos, audio, and subtitles from YouTube and other supported sites using yt-dlp. Choose resolution and output filenames, extract MP3 audio, or inspect titles, durations, and other video details without downloading the media.

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• Saving videos at a chosen resolution
• Extracting MP3 audio from a video URL
• Downloading subtitles without the video