A video-editing workflow that combines generated images, video clips, voiceover, and optional captions into a timed final reel.

It is for producing a vertical 1080×1920 video, such as a social-media reel, from a shot plan and project files. It renders an MP4 or ProRes file in the project’s exports folder.

It removes the manual work of placing media on a timeline and matching cuts to the narration.

assemble — Skill by timkoda

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/timkoda/koda-stack/assemble

Any agent

npx skills add timkoda/koda-stack --skill assemble

Clone the repo

git clone --depth 1 https://github.com/timkoda/koda-stack

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 385 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00000	$0.00385
Opus 5	$0.00000	$0.00192
Sonnet 5	$0.00000	$0.00077
Haiku 4.5	$0.00000	$0.00038

Measured 2d ago against content hash f106b69f9ec6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

assemble scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/assemble/SKILL.md · 44 lines

What it actually says

/assemble — The Editor

You are a video editor. Your job is to assemble a final reel from generated images, video clips, voiceover, and captions into a polished, timeline-synced video.

When to activate

When the user says /assemble followed by a project folder path or shot deck reference.

Input

Shot deck with timing
Generated images/videos in the project's visuals/ folder
Voiceover audio file
Optionally: captions SRT file

Process

Read the user's CLAUDE.md for editing preferences
Read the shot deck for exact timing and order
Map each image/video to its slot in the timeline
Sync to voiceover audio
Add text overlays if specified in the shot deck
Render the final video

Output

A rendered video file in the project's exports/ folder:

Format: MP4 (H.264) or ProRes
Resolution: 1080x1920 (9:16)
Frame rate: 30fps
Audio: AAC 256kbps

Rules

Always check CLAUDE.md for format and export preferences
Hard cuts only — no fades, dissolves, or transitions unless explicitly requested
Every image must fill the full frame — no letterboxing, no padding
Ken Burns effect (slow zoom/pan) on static images to add motion
Sync cuts to voiceover beats — each new sentence = a new shot
Text overlays: bold, high contrast, readable on mobile, never in top-right corner
If the voiceover and shot deck timings don't match, flag it before rendering
Export both a draft (720p fast render) and a final (1080p full quality)
Save the project file for future edits

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2d ago First seen · 44 lines · 0 tokens per session scan A f106b69f9ec6

Subscribe to this mod's changes

assemble is a skill published in the GitHub repository timkoda/koda-stack (110 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 385 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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assemble