Stage Threshold Inspection Passage

Stage Threshold Inspection Passage — Volcanologist Lava Tube Survey

Use this Skill when the user wants a 15-second hyper-real first-person scientific-expedition documentary: at 5:30–5:45 on a misty volcanic wasteland, two volcanologists in anti-slip boots, helmets and headlamps squeeze into a newly formed lava tube and record it before its internal structure changes further.

Core principle: crossing the threshold into a live, unstable natural structure — first-person urgency mixed with a second follow camera, headlamp light sweeping moving pools of light across rock, breathing and footsteps always audible, and the scientists staying calm and professional throughout.

The prompt follows the three-part H3 structure (core concept → timecoded segments → hard negative rules). T2VA: pure text generation, no reference material.

1. Trigger

• A first-person expedition / cave-inspection documentary short
• A "threshold crossing into an unstable structure" scene — enter, inspect, retreat
• A realistic scientific survey: volcanologists, lava tube, headlamps, measuring gear

Do not use this Skill when:

• The user wants fantasy, supernatural or stylized cave scenery
• The user wants a staged museum-style tour or a tourism promo
• The user wants panic/thriller reactions — this stays calm and scientific

2. Inputs

• Text only — no reference image (T2VA, pure text generation).
• Duration 15s, aspect 16:9, hyper-real first-person expedition documentary.
• Subjects: two volcanologists, anti-slip hiking boots, helmets, headlamps, compact measuring gear; environment is a newly formed lava tube on a misty volcanic wasteland at dawn.

3. Segments (timecoded, 16:9)

• 0–3s (Squeeze in through the mouth): the two researchers squeeze sideways through the narrow opening; grey-white dawn light filters in from the entrance, headlamp beams sweep across the rock walls. No empty filler shots — keep breathing and footsteps clearly audible.
• 3–6s (Wall reveal): the lens reveals the surrounding dark basalt walls and glassy volcanic rock layers, light diffusing naturally across the rock surface; the texture must be real, solid volcanic rock, not stage props. No fantasy shapes, no supernatural elements.
• 6–9s (Anomaly discovered): one researcher notices hot vapor and water suddenly seeping from a crack in the tube wall; the shot gives detail of moisture drifting from the fissure; both stop to observe. No impossible cave geometry.
• 9–12s (Step back and check): the two carefully step back a pace, crouch and examine the changing ground; the headlamp pool slowly sweeps the rock layers, small stones slip underfoot. No panic reactions — keep the calm, professional field demeanor.
• 12–15s (Mark and retreat): they mark the spot, begin backing toward the entrance where daylight shows through, the frame moves toward the light and closes into the glow of the mouth. No sudden accelerated exit, no text, no logo.

4. Hard Rules

• Rock-wall texture must read as real solid volcanic rock, not manufactured props.
• Light must diffuse naturally across the wall surface; only headlamp and dawn light.
• No fantasy shapes, no supernatural elements, no impossible cave geometry.
• No text, no subtitles, no logo.
• Calm, professional scientific demeanor throughout — no panic.
• Sound: hiking boots on scree, dripping water, muffled deep sounds from inside the rock, breathing, low hushed speech.

5. Generation

• Mode: T2VA (pure text generation) — no reference image.
• 15s, 16:9, hyper-real, H3 native audio (boots, dripping, breathing, low speech).

6. Verified Output

A 15.08s / 1056×608 / 24fps MP4 was generated end-to-end with MiniMax H3 from the packaged prompt. Preview: assets/preview.mp4, poster: assets/poster.webp.