Use when the user asks for viral hook or a task matching the examples below. Prepend a 4s viral hook + optional designed title to a user's video, then hard-cut into the real clip. An attention-grabbing event erupts into the user's OWN scene; the title is rendered in-scene by Seedance. One MCP call d

Viral Hook Prepends an extreme, no dialogue ~4s hook to a user's video — an attention grabbing event that erupts into the user's own scene, with an optional designed title burned into the lower third — then hard cuts into the untouched clip. generate viral hook does the whole render in one call and returns BOTH the hook and the stitched final. This skill's job is the creative judgment the tool can't make: read the scene, pick a hook action from the menu, and write a title. Hook rules (govern what you WRITE as hook action ) 1. Certain to grab attention, fast. Extreme and unmissable inside ~2s — over plausibility or relevance to the video's topic. 2. Erupts into the user's OWN scene. Same person, location, lighting — the tool anchors on the best visual anchor frame: 0s when usable, otherwise the first detectable face frame. Describe the event entering THAT space, never a different setting. 3. Use the scene's real geometry. Enter through a doorway with depth, a wall behind the subject, headroom above. 4. No dialogue. Voice free (only ambient / impact SFX) — don't write spoken lines into hook action . Hook super category menu Four super categories. Rotate super category per run on the same clip/session — without rotation, regenerates collapse to vehicle / explosion / creature. Archetypes are starting points, not a closed list; invent freely within the category. A. Destructive intrusion — external force violently enters and damages the scene Archetype What happens Scene affordance Incoming vehicle car / truck / bus smashes through a wall or doorway and barrels at camera background depth or a back wall Flash flood / wave a wall bursts and water surges down toward camera corridor / back wall Structural collapse ceiling / wall / shelf caves in, debris rains down headroom / walls Explosion / blast fireball erupts behind them, shockwave + debris rush forward a background surface Creature attack animal / monster lunges from off frame or bursts in open off frame edge Absurd intruder dinosaur, elephant, UFO, giant hand enters behind them background space Natural disaster tornado / meteor / lightning / sinkhole exterior or large space B. Physics anomaly — laws of physics break, photoreal; scene + subject stay, motion goes wrong Archetype What happens Scene affordance Gravity flips upward subject, loose objects, and dust fall UP toward the ceiling any indoor scene Time freeze around subject every other object holds mid air while the subject keeps moving scene with loose / moving objects Magnetic pull from ceiling hair, clothing, jewelry, small objects yank upward as if a ceiling magnet fired indoor scene + loose props Room rotates 90° walls + floor rotate around the upright subject until "down" is now a wall enclosed space, visible walls + floor Object orbit all small loose objects lift off and orbit the subject like a tornado scene with props on surfaces Inverted color flash the scene briefly inverts to negative colors and back, like a glitch any scene C. Content supersized — an element FROM the clip appears building sized and crashes in Pull the element from the scene reading (Step 2) — hero product, pet, drink, phone, logo. Archetype What happens Source element Giant hero product the product being shown appears at 10× scale and smashes through the wall / ceiling the product in the clip Building scale pet the subject's pet appears at building height in the window / doorway a pet in the clip Giant drink the cup / can / bottle becomes building sized and tips over the room a drink in the clip Giant phone the subject's phone scales up to fill the back wall, screen glowing a phone in the clip Giant logo a brand mark on a wall / shirt / packaging grows to cover the back wall any logo in the clip D. Content projectile — a relevant object FROM the clip flies at the subject at speed Source from the scene reading. Archetype What happens Source element Hero object slam the product they're showing flies at high speed into their face the hero product Food / drink splash their food or drink hurtles into them, splattering everywhere food or drink in the clip Swarm pelt many copies of a small object (sneakers / pills / cans) pelt them like hail a small repeating object Prop whip an object on a surface (mug, lamp, book) whips off and slams into them any heavy prop visible Title rules (when the user wants one) ≤7 words, ALL CAPS, one punchy line. Tie it to BOTH the hook action AND the clip's actual content. Example: giant sneaker projectile + sneaker unboxing → "THIS DROP HITS DIFFERENT." Optional — omit for a title free hook. Typography defaults to bold distressed display type with a thick black outline. The user may override via type style (a free form style string) or by pasting a brand.md — extract ONLY the typography directives (fonts, weights, treatments), ignore logos / palette / voice. Warn that thin / un outlined styles may wobble over the 4s. Workflow Step 0 — Intake (empty args) If no video was provided, print this menu verbatim and STOP — do not call any tool: What would you like a viral hook on? Paste any of: A local video path — e.g. /Users/me/Desktop/clip.mp4 An https URL to an mp4 A path + a title — e.g. clip.mp4 — "YOUR PROMPTS WON'T SAVE YOU" A path + "surprise me" — agent picks the hook action and title Wait for the next message. Don't guess an input. Step 1 — Get a URL If the input is a local file, upload asset it and use the returned public url . If it's already an https URL, use it directly. Any format is fine — no transcoding or probing here. Step 2 — Read the scene analyze media(video url) → capture the subject + framing, indoor/outdoor + setting, lighting, photoreal vs stylized aesthetic, and the spirit/topic. Also note the hero objects (product, pet, drink, phone, logos), including whether each one is visible near the opening or only appears later — required for super categories C and D. This reading is passed verbatim as the scene parameter. Step 3 — Pick the hook action Rotate super category vs the previous run on this clip; pick a different one if possible. Choose the strongest archetype the scene's geometry supports (A/B) or the most prominent hero object (C/D). Write the specific hook action — entry vector + motion + scale + peak — as one vivid sentence. This is hook action . For C/D, name the exact hero object so the tool ties it to the clip. If the hero object appears later in the clip rather than near the opening, make the first hook frame explicit: "from the first frame, the subject is holding/using [hero object]". Step 4 — Title + style Ask whether the user wants a title. If yes, propose a ≤7 word ALL CAPS line tying the hook action to the topic, get approval, and offer typography choices before rendering: default, custom direction, or brand.md . If the user has no preference, use default and say so. If no title is wanted, skip — the hook renders title free. Step 5 — Render Call generate viral hook({ video url, scene, hook action, title?, type style? }) . If it returns {task id, status} , poll task status(task id) in a tight loop until terminal, then read the result. On failed , surface the error — don't retry blindly. Step 6 — Deliver Present both clips: hook only: [[video:<hook url ]] final stitched: [[video:<final url ]] What NOT to do Don't re implement the render in the skill. No extract frame / generate image / edit concat / transcode here — generate viral hook owns all of it. If the hook looks wrong, change the hook action / title text, not the pipeline. Don't pass a seed. Variations should come from hook action , title , or type style . Don't bake a title onto the real video. The title belongs only on the hook. Don't auto edit an approved title. If a rephrase is needed, ask.

viral-hook