feat: add PROMETHEUS video prompt engineering framework

[shrishmanglik]

Introduces a comprehensive video prompt architecture for achieving Hollywood-quality output from AI video generators (Sora 2, VEO 3, Runway, Kling).

Key components:

• SKILL.md: Complete framework documentation with prose-first methodology
• References: Shot vocabulary, material poetry, lighting emotion, director signatures
• Scripts: Python prompt generator with dataclass-based structure
• Templates: Luxury product, food/beverage, and nature/environment templates

The framework provides:

• Frame-by-frame temporal control with Micro-Moment Registry
• Physics-through-poetry material descriptions (not technical specs)
• AI limitation workarounds for hands, liquids, steam, and text
• Comprehensive lighting-as-emotion vocabulary
• Director signature references for visual language

[shrishmanglik]

NA

[wshobson]

Hi @shrishmanglik,

Thanks for this PR — the PROMETHEUS framework is genuinely well-researched and the content quality is excellent. The "prose over constraints" philosophy is a thoughtful insight into how AI video generators actually work, and the director signature references are a valuable resource.

However, this PR needs some structural modifications before it can be merged. Every plugin in this repository follows a consistent pattern, and this one is currently incomplete.

Required Changes

1. Add an Agent Definition

Every plugin needs an agents/ directory with at least one agent. Please add:

plugins/video-prompt-engineering/
├── agents/
│   └── video-prompt-engineer.md   ← ADD THIS
└── skills/
    └── prometheus-framework/

The agent file should follow the standard format (see any existing agent in the repo for reference). Something like:

---
name: video-prompt-engineer
model: sonnet
description: Expert in crafting prompts for AI video generators (Sora, VEO, Runway, Kling) using the PROMETHEUS framework for Hollywood-quality output.
---

# Video Prompt Engineer

[Description of capabilities, when to use, etc.]

2. Consider Adding a Command (Optional but Recommended)

Most plugins include a commands/ directory with slash commands. You could add something like:

plugins/video-prompt-engineering/
├── agents/
├── commands/
│   └── prometheus.md   ← OPTIONAL
└── skills/

This would let users invoke /prometheus to generate video prompts interactively.

What's Already Good

• ✅ The SKILL.md is comprehensive and well-structured
• ✅ The reference materials (director signatures, lighting emotion, etc.) are valuable
• ✅ The Python generator is clean with proper dataclasses and type hints
• ✅ The AI limitation workarounds section is practical and insightful
• ✅ The templates provide useful starting points

Questions to Consider

1. Should this be part of a broader "generative-ai-prompting" category, or standalone?
2. Would you want to add agents for specific platforms (e.g., sora-specialist, runway-specialist)?

Once you add the agent definition, this should be ready for another review. Let me know if you have any questions about the plugin structure!

[wshobson]

Requesting changes as outlined in my comment above. The content quality is excellent, but the plugin needs an agents/ directory with at least one agent definition to match the project structure. Once that's added, happy to re-review.