What is edit-timeline-studio?

A media-editing workflow for Timeline Studio projects, covering images, video, speech, motion, products, and websites. It keeps an editable timeline as the project source.

Analyzing media, recreating references, applying effects, tracking and matting subjects, restoring footage, adding captions or voice, assembling edits, and exporting validated videos.

It turns complex media changes into reversible project edits and checks the exported result locally, which makes revisions safer.

edit-timeline-studio — Skill for Claude Code and Codex by MartinDeloph

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.

Any agent

npx skills add MartinDelophy/ai-video-editor --skill edit-timeline-studio

Clone the repo

git clone --depth 1 https://github.com/MartinDelophy/ai-video-editor

Made for: Claude Code, Codex.

Or install timeline-studio, the plugin that ships this one along with the rest of its 1 skill.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/martindelophy/ai-video-editor/edit-timeline-studio/github.svg)](https://agentmods.dev/skills/martindelophy/ai-video-editor/edit-timeline-studio)

Your own site

<a href="https://agentmods.dev/skills/martindelophy/ai-video-editor/edit-timeline-studio"><img src="https://agentmods.dev/badge/skills/martindelophy/ai-video-editor/edit-timeline-studio/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/martindelophy/ai-video-editor/edit-timeline-studio"><img src="https://agentmods.dev/badge/skills/martindelophy/ai-video-editor/edit-timeline-studio.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 193 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,273 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Excessive Agency · line 26
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.

How audits are shown

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 5.1	$0.00193	$0.05273
Opus 5	$0.00097	$0.02636
Sonnet 5	$0.00039	$0.01055
Haiku 4.5	$0.00019	$0.00527

Measured 2d ago against content hash c3f6714eef8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

edit-timeline-studio 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.

The scan reads SKILL.md. This mod also ships 9 executable files (mcp/server.mjs, scripts/analyze_replication.py, scripts/bootstrap-host.ps1, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/edit-timeline-studio/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Video Editing with Timeline Studio

Turn the user's exact editorial request and media into reversible Timeline Studio edits. Keep the editable timeline as the source of truth; never replace it with an opaque one-shot render.

Choose the execution path

On first local use after installation, read references/host-environment.md. If Node.js is unavailable, start with the zero-dependency Shell or PowerShell bootstrap; otherwise run node scripts/setup-host.mjs --check. Agent-driven Chinese and mixed Chinese/English voiceover uses Timeline Studio's owned browser-local Hojo TTS Light 80M two-voice bundle and does not require a separate Python voiceover capability. If language runtimes or dependencies are missing, show the exact installation plan and obtain explicit user approval before install mode; never treat Skill installation as permission to modify the host or download models.
Treat local project-file processing as the default for deterministic editing: inspect media locally, modify the portable .timeline through the command layer or local archive services, and render and verify decoded output when the task changes rendered media. Do not open a browser merely because the editor has a UI.
Treat https://video-editor.ai-creator.top/ as the canonical hosted editor only when the user explicitly asks to use the website, provides no local repository or project path, or requires a hosted-only capability.
When this repository is available, prefer its Agent command layer and local media tools. Start the local server and browser only for a verified UI-only operation that the local project pipeline cannot express and the user has not required a local-only workflow. Read the actual server URL from process output; never assume port 5173.
Prefer the bundled Timeline Studio MCP tools when the host exposes them. Read references/mcp-integration.md, inspect the project, and always call timeline_project_diff before timeline_project_apply with the same revision and operations. The MCP server is a transport over the repository command runner, not a separate editing implementation.
When MCP is unavailable, inspect package.json for an Agent command script. Do not use npm run ... --if-present as capability detection because it can succeed silently. If the command runner exists, read references/command-contract.md, inspect the project, build a versioned plan, run the structural validator, and use project.diff as the authoritative semantic dry run before project.run.
If a required operation is missing from the local contract, state the exact gap. For repository-development work, implement the smallest shared local operation and renderer support before falling back to UI. Otherwise ask before switching to the browser workflow.
Do not claim deterministic or idempotent execution when only UI automation was available. State the limitation and preserve an editable project archive when the UI supports it.

Read the full file on GitHub · 104 lines

Files

What ships with it

41 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 Changed · +3 lines · +15 tokens per session c3f6714eef8d
10d ago First seen · 101 lines · 178 tokens per session scan A 5c50784dac03

Subscribe to this mod's changes

edit-timeline-studio is a skill published in the GitHub repository MartinDelophy/ai-video-editor (800 stars, last pushed 2d ago), licensed MIT. It adds 193 tokens to every session and 5,273 once invoked, about $0.0010 per session on Opus 5. 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.

Creative and media ai-video-editor ai-voiceover browser-ai liveportrait onnx pwa

autoclip

A local video tool that finds notable moments in long lectures, interviews, podcasts, or courses and turns them into short clips. It can use subtitles or transcribe the video, then render clips with ffmpeg, a video-processing program.

zhouxiaoka/autoclip · 123 tokens

remotion-motion-graphics

Create and edit professional motion graphics videos with Remotion (React-based video). Use this skill EVERY time the user wants to create a video, edit a video, animate something, build an intro/outro/logo animation, make a Reel/Short/promo/launch video, add text animations or captions to footage, composite images and…

haidrrrry/claude-remotion-skill · 141 tokens

create-motion-graphics

Use whenever the agent needs to add, create, hand-author, patch, or place Motion Graphic JSX assets in a OpenChatCut project. This is the direct-authoring path: use createmotiongraphicfromcode / editasset / edititem, not motion-graphic-gen or submitmotiongraphic. Covers project/timeline intake, project visual…

0xsline/OpenChatCut · 97 tokens

openchatcut-plugin-basics

Use for video editing or video creation work that should be editable in OpenChatCut, even when the user does not explicitly mention OpenChatCut. Covers local/attached video editing, captions/subtitles, transcription, trimming, talking-head cleanup, highlights, B-roll, overlays, generation, export, project/editor…

0xsline/OpenChatCut · 89 tokens

voice

Text-to-Speech (TTS), voiceover, narration placement/sync, and custom sound effects (SFX) generator. Use when the user wants generated speech from text, wants to add/replace/align narration or voiceover for an existing video/timeline, wants to keep existing voiceover synced after visual retiming edits, needs voice…

0xsline/OpenChatCut · 94 tokens

video-gen

AI video generation via Seedance 2.0, Kling, MiniMax Hailuo, and xAI Grok Imagine. Use when the user wants to generate a video clip — text-to-video, image-to-video, first/last-frame transitions, reference-guided generation, multi-shot, or generatively editing / extending an existing clip.

0xsline/OpenChatCut · 72 tokens