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Video Spec Builder

AI Agent Updated 2026.08.30

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Please follow https://skillhub.cn/install/skillhub.md to install @user_3c6cb52e/video-spec-builder.

About this skill

Problem Context

Many video projects get stuck between “the idea feels clear” and “production can start.” Users may want a product demo, tutorial, or brand short, but struggle to define shot structure, pacing, material gaps, and visual rules. Vague phrases like “premium,” “techy,” or “high quality” are not actionable for a rendering pipeline and often lead to rework. Video Spec Builder is meant to turn fuzzy video requirements into an executable video-spec.md.

How It Works

The skill does not focus on generating video directly. Its main job is to build a specification document through guided dialogue. On startup, it scans the project directory and chooses between 0-1 mode and iteration mode: if an existing video-spec.md is found, it handles revisions; if not, it collects requirements from scratch.

Key capabilities include:
- Requirement clarification: it probes video purpose, audience, platform, duration, core message, and available materials until they are concrete enough to act on.
- Shot breakdown: it converts scripts, selling points, or story outlines into single-shot granularity and produces a spec with a storyboard table.
- Capability surfacing: when users mention narration, subtitles, 3D, motion, transitions, or other needs, it proactively suggests relevant capabilities instead of recording only vague descriptions.
- Visual rules: it supports selecting a HyperFrames preset or using/generating a design.md file in the project root for a custom theme.
- Spec maintenance: when revising an existing spec, it checks conflicts and updates the document for changes such as shot swaps, pacing adjustments, subtitle changes, or color changes.

Scope and Caveats

This skill is best suited for projects that need to structure video intent first, especially product demos, tutorials, marketing shorts, and other storyboard-driven work. It is not a replacement for a full rendering workflow; after the spec is ready, it may guide the user into HyperFrames to continue. Output quality still depends on the user confirming key decisions, and vague preferences need to be translated into concrete visual, pacing, and material choices.

Use Cases

  • Break a launch-event idea into a 30-second storyboard and set platform ratio, frame rate, and theme preset.
  • Revise an existing video-spec.md by reordering shots, adjusting pacing, and checking subtitle/color conflicts.
  • Turn a script into narration, subtitle, motion, and 3D capability choices, outputting a HyperFrames-ready spec.
  • Choose a visual theme for a brand short from HyperFrames presets or a custom design.md specification.

Best For

  • Engineers preparing product demo shorts who need to split selling points into shots and confirm assets.
  • Creative planners producing brand shorts who need theme, pacing, and reference decisions.
  • Operations staff with scripts and audio who want tutorial videos broken into storyboard and subtitle specs.
  • Content leads maintaining video-spec.md who need iterative shot edits and conflict checks.