hackathon-demo-video（黑客马拉松演示视频）

hackathon-demo-video

Goal

Produce a structured script and shot list for a hackathon demo video that showcases the project's core value within a strict time limit.

Trigger Conditions

Use this skill when:

• The MVP demo flow is implemented and stable
• A demo video must be recorded for submission or as a live-demo fallback
• The wow moment timing and placement in the video need to be optimized
• The recording environment must be checked and locked before recording begins
• Invoked during Phase 6; run in parallel with hackathon-pitchdeck after code freeze

Inputs

Outputs

Rules

1. The first 5 seconds must state the problem or hook — no introductions.
2. wow_factor must appear before the 60% mark of video_duration_seconds.
3. Every mvp_demo_flow step must map to at least one shot.
4. Narration sentences must be under 15 words each.
5. Reserve the final 10% of video time for a summary and call-to-action.
6. recording_checklist must include at least: notifications off, test data ready, screen resolution set.
7. fallback_plan must be a static slide or pre-recorded segment, never "we'll skip this part."

Output Format

wow_moment_timestamp: <seconds>

script:
  - timestamp_start: <seconds>
    timestamp_end: <seconds>
    narration: "<spoken words>"

shot_list:
  - timestamp_start: <seconds>
    timestamp_end: <seconds>
    screen_content: "<what is visible>"
    action: "<what the presenter does>"

recording_checklist:
  - "<item>"

fallback_plan:
  trigger: "<condition>"
  action: "<what to do>"

Example

Input:

project_title: "AnchorAI"
tagline: "An AI companion that remembers your emotional journey."
wow_factor: "AI recalls emotional context from 3 days ago and adapts tone in real time"
video_duration_seconds: 120
demo_environment: "web browser"
voiceover: true
mvp_demo_flow:
  - step: 1
    action: "User types 'I'm overwhelmed today'"
    outcome: "AI responds empathetically"
  - step: 2
    action: "User mentions recurring work stress"
    outcome: "AI references last week's conversation"
  - step: 3
    action: "User expresses hopelessness"
    outcome: "Crisis resource card appears"

Output:

wow_moment_timestamp: 45

script:
  - timestamp_start: 0
    timestamp_end: 8
    narration: "40% of college students live with anxiety. Most wait 6 weeks for help."
  - timestamp_start: 8
    timestamp_end: 15
    narration: "AnchorAI is always available — and it remembers you."
  - timestamp_start: 15
    timestamp_end: 45
    narration: "Watch what happens when a student checks in after a hard week."
  - timestamp_start: 45
    timestamp_end: 70
    narration: "AnchorAI recalls last week's conversation — without being told."
  - timestamp_start: 70
    timestamp_end: 95
    narration: "When a student signals distress, AnchorAI responds with care and resources."
  - timestamp_start: 95
    timestamp_end: 120
    narration: "No waitlist. No starting over. AnchorAI — always there."

shot_list:
  - timestamp_start: 0
    timestamp_end: 8
    screen_content: "Stat card: '40% of students report anxiety. Average wait: 6 weeks.'"
    action: "Hold on stat card"
  - timestamp_start: 15
    timestamp_end: 45
    screen_content: "Chat interface — user types message"
    action: "Type 'I'm feeling overwhelmed again this week'"
  - timestamp_start: 45
    timestamp_end: 70
    screen_content: "AI response references 'last week's exam stress you mentioned'"
    action: "Scroll to highlight the memory reference in the AI response"
  - timestamp_start: 70
    timestamp_end: 95
    screen_content: "User types hopelessness message; crisis card slides in below response"
    action: "Type message; pause on crisis card appearing"

recording_checklist:
  - "Notifications disabled on OS and browser"
  - "Demo account pre-loaded with 1 prior session in Redis"
  - "Screen resolution set to 1920×1080; browser zoom 125%"
  - "Test data: prior session summary contains 'exam stress' phrase"
  - "Run full demo flow once before recording"

fallback_plan:
  trigger: "OpenAI API fails to respond during recording"
  action: "Use pre-recorded screen capture of the memory recall exchange as an overlay segment"

Context Files

Knowledge Base

• knowledge/hackathon-demo-psychology.md
• knowledge/hackathon-demo-patterns.md
• knowledge/hackathon-pitch-strategy.md

Templates

• templates/demo-script-template.md

Playbooks

• playbooks/hackathon-workflow.md