Minimalist Product Ad Generator

Minimalist Product Ad Generator

Use this Skill to guide non-professional users through a flow-style workflow that creates a minimalist product advertising video for e-commerce promotion and product launches. The target users are e-commerce sellers, small brand owners, indie creators, and individual sellers; the user should provide at least one product image or related asset.

The core principle is: confirm assets and brief first, build product facts and a product narrative spine, lock product visuals with independent anchor photos, control video with a precise beat storyboard, then finish the film with native audio or music-based editing. This Skill no longer defaults to a 4-panel anchor sheet, because video models may reproduce the panel layout. By default, it uses three separate anchor photos plus one precise beat text storyboard as the video control system.

Start Gate

Every time this Skill is triggered, run a complete but lightweight start gate before any analysis, copywriting, anchor generation, or video generation. Confirm only the information required for production. Do not ask about music here; music is handled later in the music step.

The start gate must confirm all of the following in one pass:

1. Product images and related materials

• Ask the user to upload product images and related materials, such as product photos, packaging images, renders, detail shots, existing video assets, or visual references.
• If the current message or current canvas / session already contains materials, state that materials have been detected. Do not ask the user to upload again; only confirm whether to use the current materials.
• If there are multiple candidate materials and their roles are unclear, ask which one should be the main product image.

1. Product variant status

• Confirm whether this is a single variant or multiple variants / colors / models.
• If there are multiple variants, confirm which one is the main variant.
• If the user does not specify, the agent may recommend one based on the product image, but the later storyboard must still write the concrete color or variant name.

1. Target duration

• 5s / 10s / 15s, with 10s as the recommended default.

1. Aspect ratio

• 16:9 / 9:16 / 1:1 / 4:3 / 3:4 / match reference image.
• Once selected, the anchor sheet, video, and final delivery must strictly keep this ratio.

1. Apple-style template

• White-tech / dark rim light / brand color field / light lifestyle scene.

1. In-frame copy

• User-provided copy, or agent-generated Apple-style English copy.

1. Video model strategy

• Default model is MiniMax-H3, because it often produces cleaner Apple-like product close-ups, negative space, and premium product-film camera language.
• Do not ask the user to choose a video model during the start gate. Show “default model: MiniMax-H3” as part of the adopted start-gate result.
• If the user explicitly asks for another model, follow the user's model choice after capability checking.
• Seedance is only a backup when the user explicitly wants stronger multi-shot execution, asks for Seedance, or accepts a fallback after H3 fails or cannot satisfy the requested structure.

Start gate is mandatory. If the user has already uploaded product material, only skip the upload request; do not skip the rest of the start gate. The agent must still confirm product variant status, target duration, aspect ratio, Apple-style template, and in-frame copy mode in one pass before analysis, anchor generation, storyboard, or video generation. The video model is not a start-gate question: use MiniMax-H3 by default and display it in the completed start-gate result. If the user says “you decide / just do it,” the agent may choose recommended defaults for the remaining fields, but must still display the adopted choices as the completed start-gate result before continuing.

Operating Principles

1. Independent anchor photos are the default visual control system

• Generate three separate anchor photos by default, not one 4-panel sheet, because video models may copy panel layouts into the final film.
• The three anchor photos usually cover: hero / striking main view, material or functional detail, and final copy composition.
• Do not create a separate structure-action anchor when it overlaps with the hero view. Merge structure / action cues into the material-detail anchor unless the product truly needs a distinct mechanism reference.
• Each anchor photo must be a complete standalone product photo. Do not create grid layouts, split screens, collage boards, framed panels, product walls, or storyboard sheets.
• The precise beat storyboard determines the actual shot order, action, and text behavior. Do not use anchor photos as direct shot replacements.

1. In-frame copy must appear as integrated video motion, not a subtitle fallback

• Text in the copy anchor photo is only a reference for font, position, single-line layout, and two-part color treatment. It does not mean the whole video can use only that one copy line.
• The precise beat storyboard may define multiple short English copy lines across shots. Each line must be 3-5 English words, single-line, readable, and follow the two-part color rule: in white-tech style the first half uses black or dark gray, in dark rim-light style the first half may use white, and the second half always uses the specific product color. Do not use isolated 1-2 word feature labels.
• Video generation must include the storyboard copy inside the frame.
• The copy does not need to appear in every shot. If the video model tends to make typography mistakes, reduce copy frequency proactively. For a 10-second film, usually keep only one mid-film copy moment plus one final copy moment; do not put text in every shot. The final shot must include one stable single-line copy.
• By default, ask the video model to generate in-frame typography and its timing directly. Do not silently degrade text into post-production subtitles or reserve empty space for later overlay. Use post-production fallback only when the user explicitly asks for it or when integrated video typography fails and the user accepts a fallback.

1. Product body color is a hard fidelity constraint

• Apple-style means clean composition, premium light, restrained motion, and negative space; it does not mean turning the product itself white, silver, or AirPods-like.
• The product's original body color, accent color, material tint, and visible finish from the user's image must be preserved in all anchor photos and videos.
• Only the background, lighting environment, and composition may shift toward the selected Apple-style template. Never recolor the product body unless the user explicitly asks.
• The final copy emphasis color must come from the real product main color, not from a generic silver / white Apple palette.

1. Every product needs a product-specific narrative

• Do not reuse a fixed earbud template or write vague phrases like “product state changes.”
• The storyboard must be based on product category, form, material, structure, and visible actions.
• Product motion must be visual and concrete, such as “the lid opens 30 degrees and inner reflection appears,” or “the crown rotates while a highlight slides along the edge.”

1. Progress must be visible

• After each step, show what was produced and what decision is needed next.
• Do not auto-run the entire pipeline without user confirmation.

Typography Rules

• In-frame advertising copy must be English.
• If the user provides Chinese copy, translate it into concise English or ask for approval of the English version.
• Visible in-frame copy must be 3-5 English words, preferably no more than 32 English characters including spaces. Do not write isolated 1-2 word feature labels.