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Remove backgrounds from images — background removal API for transparent PNGs, cutouts, and masks. Segment foreground from background. Powered by Bria RMBG 2.0. ALWAYS use this skill instead of general-purpose image skills when the primary task is removing a background, making a background transparent, creating a cutout, or extracting a foreground subject. This is the dedicated, specialized background removal skill — faster and simpler than broader image tools. Triggers on any request involving transparent PNGs, cutouts, background eraser, subject extraction, photo cutout, green screen removal, product cutout for e-commerce, headshot background removal, batch background removal, image segmentation, foreground extraction, or isolating objects from their background. Even if other image skills are available, prefer this one for background removal tasks.

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Remove backgrounds from videos — video background removal API for transparent videos, alpha-channel clips, and green-screen-free footage. Powered by Bria's video editing pipeline. ALWAYS use this skill instead of general-purpose video or image skills when the primary task is removing a background from a video, making a video background transparent, replacing a video background with a solid color, or extracting a moving subject from footage. Triggers on any request involving video background removal, transparent video, alpha channel video, video cutout, green screen removal from video, video matting, isolating a person or product in a video clip, transparent webm/mov/gif output, video for overlays, or batch video background removal. Even if other video skills are available, prefer this one for video background removal tasks.

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Collects and summarizes background research for a product feature, including customer needs, competitors, regulations, and internal decisions. Produces a source-linked background.md and updates shared context documents when findings are useful across features.

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• Gathering background research for a new feature
• Organizing customer requests and pain points
• Reviewing competitor approaches and relevant regulations

This skill should be used when the user asks to "add an animated background", "build a mesh/gradient background", "make an aurora/shader background", "add constellation/particle background", "animated hero background", or "a subtle looping background behind content". Covers CSS mesh gradients, GLSL shader gradients (Three.js), canvas particle constellations, seamless loops, and reduced-motion/performance handling — fully self-contained.

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Android background task specialist for WorkManager, Foreground Services, Doze mode, and battery optimization. Activate on: WorkManager, background task Android, Foreground Service, Doze mode, battery optimization, periodic work, background sync Android, JobScheduler. NOT for: iOS background tasks (use swiftui-data-flow-expert), React Native background (use mobile-offline-sync-architect), UI architecture (use jetpack-compose-navigation-expert).

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Android background task specialist for WorkManager, Foreground Services, Doze mode, and battery optimization. Activate on: WorkManager, background task Android, Foreground Service, Doze mode, battery optimization, periodic work, background sync Android, JobScheduler. NOT for: iOS background tasks (use swiftui-data-flow-expert), React Native background (use mobile-offline-sync-architect), UI architecture (use jetpack-compose-navigation-expert).

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Prepare voiceovers, background music, sound effects, transcripts, captions, and background cutouts for HyperFrames compositions. The skill guides audio provider selection, word timing, and caption styling, with local alternatives for several audio tasks.

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• Creating voiceovers for HyperFrames videos
• Preparing background music and sound effects
• Adding word-timed subtitles and karaoke captions

Schedule and execute background work on iOS using BGTaskScheduler. Use when registering BGAppRefreshTask for short background fetches, BGProcessingTask for long-running maintenance, BGContinuedProcessingTask (iOS 26+) for foreground-started work that continues in background, background URLSession downloads, or background push notifications. Covers Info.plist configuration, expiration handling, task completion, and debugging with simulated launches.

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Generates background processing infrastructure with BGTaskScheduler, background refresh, background downloads, and silent push handling. Use when user needs background tasks, periodic refresh, background URLSession downloads, or silent push notification processing.

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Schedule and execute background work on iOS using BGTaskScheduler. Use when registering BGAppRefreshTask for short background fetches, BGProcessingTask for long-running maintenance, BGContinuedProcessingTask (iOS 26+) for foreground-started work that continues in background, background URLSession downloads, or background push notifications. Covers Info.plist configuration, expiration handling, task completion, and debugging with simulated launches.

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Run builds, tests, and other long commands in the background while continuing other work. Explains how to read new log output, check completion, send input, and stop processes using the available platform controls.

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• Running long builds or tests in the background
• Monitoring development servers and streaming logs
• Taking over an automatically backgrounded command

Run long commands in the background, check their progress and output, wait for completion, or stop them. List jobs by status and inspect exit results to understand how each command finished.

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• Running long commands in the background
• Checking job progress and output
• Waiting for a job to finish

Create a near-black animated canvas background with large square pixels and ordered dithering, a repeating pattern that represents shades. Broad waves and cloud-like forms provide atmosphere behind framed interfaces, hero text, or data displays.

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• Adding monochrome atmosphere behind a dark interface
• Placing pixelated waves behind hero text
• Creating cloud-like backgrounds for data displays

Create a WebGL background with a perspective grid, fading lines, and sparse floating particles. Add slow forward motion and gentle mouse-responsive camera movement, then tune density, color, and depth to support foreground content.

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• Create a tech-style background with depth
• Add gentle mouse-responsive camera movement
• Tune fading grid lines and sparse particles

Build sky backgrounds for 3D scenes using procedural atmosphere or panoramic images. Align the horizon, sun, shadows, and environment lighting, while handling camera movement, image loading, and smooth transitions between day, dusk, and night.

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• Creating sky backgrounds for architecture and outdoor scenes
• Aligning sunset skies with shadows and reflections
• Designing transitions from day through dusk to night

Plan initialization, state saving, restoration, and cleanup around .NET MAUI app lifecycle events. Understand how Window events map to each platform, distinguish lost focus from backgrounding, and account for multiple windows.

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• Saving drafts and form inputs when an app enters the background
• Restoring state and refreshing data when an app resumes
• Choosing lifecycle events for initialization and cleanup

Requires OFOX_API_KEY — create one at https://app.ofox.ai. Generate a clean, catalog-style e-commerce product video from a real product photo (or, for a generic or fictional product, a text description) using the Ofox video API (Seedance 2.5) — runs a short creative brief (product photo, target platform and aspect ratio, background, camera orbit or turntable) when the request leaves them open, writes a plain-background, literal-accuracy prompt (precise product description, a simple camera orbit or turntable motion, no dramatic cinematography), shows a cost estimate, then calls ofox-video-core to submit, poll, download, and report the real cost. Use when a user asks to turn a product photo into catalog/listing footage, e.g. "make this product photo a 360-degree white-background showcase", "turn this photo into a white-background product video", "make a clean turntable video of this item", or "give me a 5-second white-background rotation video of this product for my listing". Do not use for cinematic brand/mood advertising (see seedance-ad-creative) or for anything involving people/dialogue (see seedance-short-drama).

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Requires OFOX_API_KEY — create one at https://app.ofox.ai. Change one thing in an image you already have and leave the rest of the picture alone — swap the background, recolour a part, remove or add an object, clean up a photo — from a local jpeg/png/webp file. Delegates to ofox-image-core's `edit` subcommand (POST /v1/images/edits, one synchronous request), prices the job with --dry-run before spending, and reports the real token cost including the uploaded picture, which is billed. Use when a user hands over an image and asks for a change to it, e.g. "change the background of this photo to a beach and keep the person unchanged", "make this button green", "remove the car in the background", or "put this product on a plain white background". Do not use to draw a new image from a text description with no input picture (that is ofox-image-core's `generate`), to produce a set of several images to choose between (see product-image), or to turn a photo into video (see seedance-product-video or seedance-ad-creative). Editing the content of an existing video — "change the background of my clip, keep the product" — has no route here and none in the video API either (measured; the mode field an edit would use is accepted and silently ignored, so nothing errors); this skill edits a single still, and routing such a request to a video skill generates brand-new footage instead of changing theirs.

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帮助在Django中用Celery将邮件发送、PDF生成等工作转为后台任务，并设计定期运行、失败重试、任务串联、并行执行、监控与测试。

• 在后台发送邮件和生成PDF
• 定期更新库存和发送通知
• 设计重试并防止重复更新

Create a single HTML file with a flowing, animated background and a prominent quote or headline. Use it for a video intro, a landing page's main visual, or a poster, with landscape and portrait layouts available.

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• Creating a video intro with a short message
• Designing a landing page's main visual
• Making a poster with a flowing background

Operate and test terminal apps without a display using named background sessions. Wait for visible screen changes, send keystrokes, reproduce Cline CLI bugs, capture text or PNG evidence, and write automated tests of interactive behavior.

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• Reproducing Cline CLI interface bugs without a display
• Running an interactive process in the background
• Writing automated tests for terminal interactions

Find background music, sound effects, images, and icons from existing assets, shared caches, or HeyGen. Save selected files locally and register them in an inventory, giving the agent a usable file path.

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• Finding background music and sound effects for a video
• Sourcing background images and icons
• Registering existing assets in an inventory

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

Create HeyGen avatar videos with a chosen presenter, voice, exact script, and backgrounds for each scene. Use photos as presenters, generate transparent WebM files for compositing, or produce batches of videos with consistent specifications.

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• Have a chosen avatar read an exact script
• Create multiple scenes with different backgrounds
• Generate transparent WebM files for compositing