Video Editor Skill

Post-production pipeline for AI-generated video clips. Takes raw 720p/1080p clips (typically from Seedance 2.0 or Kling) and produces a branded cinematic film.

Every script lives at .claude/skills/video-editor/scripts/. Reference material from Jam's SuperScale work is in reference/. Brand assets (TeamDay logo, Inter fonts) are in assets/.

Core capabilities

Script	What it does
extract_frames.py	Pull N frames/sec (or N samples) from a reference video for vision analysis — how to reverse-engineer Jam's or any competitor's cinematic style
compose_scenes.py	Jam-style multi-scene composer — per-scene colour grade (eq/curves), text PNG overlays with fade in/out, xfade transitions. Library + CLI
append_endcard.py	Render TeamDay logo endcard (logo + wordmark + rule + tagline + URL) and append to any video with fadeblack transition
mux_audio.py	Fade-in/out audio mux without re-encoding video. For adding ElevenLabs Music or voiceover

Typical workflow

1. Generate raw clips          → seedance-specialist / ai-video-creator agent
2. (Optional) Analyse a ref    → extract_frames.py  (get 1fps PNGs, read w/ vision)
3. Compose + grade + overlay   → compose_scenes.py  (Jam premium pattern)
4. Append branded endcard      → append_endcard.py  (default TeamDay logo)
5. Mux orchestral score        → mux_audio.py       (fade in/out, preserve video)

Reverse-engineering an existing video

When asked "recreate this video in our style" or "match Jam's orchestra video":

# 1. Extract 1 frame/sec (or N samples) as PNGs
python3 .claude/skills/video-editor/scripts/extract_frames.py \
    reference.mp4 --fps 1 --out /tmp/ref_frames --size 1280x-1

# 2. Read each frame via the Read tool to vision-analyse composition,
#    lighting, camera direction, subject, colour grade. Use that to
#    draft new Seedance keyframe prompts matching the style.

# 3. Generate new keyframes + clips (delegate to ai-image-creator +
#    seedance-specialist).

# 4. Compose using compose_scenes.py with scene configs that mirror
#    the reference's grade (contrast/sat/curves) — borrow from
#    reference/compose_premium.py for proven values.

Start-to-end motion (Seedance first_frame + last_frame)

For "here's the start, here's the end, do the motion between":

• Use the seedance-specialist agent (not this skill) — Seedance 2.0's imageToVideo accepts first_frame + last_frame content roles. The specialist agent knows the API.
• Pass it the two PNGs + a motion prompt. You receive one MP4 back.
• Then use this skill for post: compose_scenes.py to grade/overlay, then append_endcard.py to brand.

Jam's proven colour grade presets (from compose_premium.py)

Each scene in Jam's premium showcase used these values. Useful starting points:

Mood	contrast	sat	bright	r_curve	g_curve	b_curve
Warm anticipation (amber-heavy, low exposure)	1.35	1.20	-0.04	0/0 0.4/0.32 1/0.88	0/0 0.45/0.48 1/0.92	0/0.05 0.35/0.45 0.75/0.9 1/0.98
Teal-amber reveal (complementary split)	1.40	1.35	-0.02	0/0.02 0.5/0.5 1/0.94	0/0 0.5/0.5 1/0.92	0/0.08 0.45/0.6 1/1
Balanced warm-cool (harmony scenes)	1.30	1.40	0.00	0/0 0.55/0.48 1/0.86	0/0 0.5/0.52 1/0.93	0/0.06 0.45/0.62 1/1
Golden hero (warm, high exposure, vignette)	1.25	1.30	0.02	0/0.02 0.5/0.6 1/1	0/0 0.5/0.5 1/0.9	0/0 0.5/0.35 1/0.76
High-tech cool (dashboards, cyan accent)	1.35	1.20	0.00	0/0 0.6/0.5 1/0.82	0/0 0.5/0.52 1/0.95	0/0.06 0.4/0.65 1/1

Compose config (JSON for CLI)

{
  "out": "final.mp4",
  "endcard": "endcard.mp4",
  "dur": 4.0,
  "xfade": 0.45,
  "fps": 24,
  "W": 1920,
  "H": 1080,
  "transitions": ["fade", "dissolve", "fade", "dissolve", "fadeblack"],
  "scenes": [
    {
      "video": "raw/s1.mp4",
      "title": "Your team",
      "subtitle": "is always on.",
      "contrast": 1.35, "sat": 1.20, "bright": -0.04,
      "r_curve": "0/0 0.4/0.32 1/0.88",
      "g_curve": "0/0 0.45/0.48 1/0.92",
      "b_curve": "0/0.05 0.35/0.45 0.75/0.9 1/0.98",
      "vignette": true
    }
  ]
}

Run: python3 compose_scenes.py config.json

Library usage (Python)

import sys
sys.path.insert(0, '.claude/skills/video-editor/scripts')
from compose_scenes import Scene, compose

scenes = [
    Scene('raw/s1.mp4', title='Your AI team', subtitle='is always on.',
          contrast=1.35, sat=1.2, bright=-0.04, vignette=True),
    # ... more scenes
]
compose(scenes, out='final.mp4', dur=4.0, W=1920, H=1080)

TeamDay branding (non-negotiable)

• Logo — .claude/skills/video-editor/assets/teamday_logo.png (Vector-3 "Y" emblem from docs/brand/A_4/). This is the ONLY approved logo. Do not substitute.
• Fonts — Inter Bold / Medium / Regular, shipped with this skill.
• Endcard tagline variants (pick or remix):
  • Your AI workforce.
  • The team behind every great team.
  • Always on. Never tired.
• Never use — the word "conductor" in copy (deprecated framing per 2026-04-18 feedback — founders lead; AI works alongside, not under, them).

Related agents

• ai-video-creator — generates raw clips via Kling/Wan (no Seedance)
• seedance-specialist — generates raw clips via Seedance 2.0 (first+last frame, text-to-video, editing, extension)
• ai-image-creator — generates keyframes via Flux/Grok/Gemini/OpenAI

This skill runs after those generate raw footage. It is the branding/post-production layer.

Provenance

Pipeline pattern lifted from reference/compose_premium.py — Jam Alinson's SuperScale premium showcase compositor (4-scene cinematic with xfade + grade

• text overlays). Kept as a reference for future tuning; adapted into a reusable library in scripts/compose_scenes.py.