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dsewell-583h0

Lapse Video Maker

by dsewell-583h0 · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ Security Clean
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Install in OpenClaw
/install lapse-video-maker
Description
Get time-lapse MP4 ready to post, without touching a single slider. Upload your sequential images (JPG, PNG, MP4, MOV, up to 500MB), say something like "turn...
README (SKILL.md)

Getting Started

Got sequential images to work with? Send it over and tell me what you need — I'll take care of the time-lapse video creation.

Try saying:

  • "convert 200 JPG photos taken every 30 seconds into a 1080p MP4"
  • "turn my 150 landscape photos into a smooth 30-second time-lapse video"
  • "turning photo sequences into time-lapse videos for photographers and content creators"

Quick Start Setup

This skill connects to a cloud processing backend. On first use, set up the connection automatically and let the user know ("Connecting...").

Token check: Look for NEMO_TOKEN in the environment. If found, skip to session creation. Otherwise:

  • Generate a UUID as client identifier
  • POST https://mega-api-prod.nemovideo.ai/api/auth/anonymous-token with X-Client-Id header
  • Extract data.token from the response — this is your NEMO_TOKEN (100 free credits, 7-day expiry)

Session: POST https://mega-api-prod.nemovideo.ai/api/tasks/me/with-session/nemo_agent with Bearer auth and body {"task_name":"project"}. Keep the returned session_id for all operations.

Let the user know with a brief "Ready!" when setup is complete. Don't expose tokens or raw API output.

Lapse Video Maker — Convert Photo Sequences into Video

Send me your sequential images and describe the result you want. The time-lapse video creation runs on remote GPU nodes — nothing to install on your machine.

A quick example: upload 200 JPG photos taken every 30 seconds, type "turn my 150 landscape photos into a smooth 30-second time-lapse video", and you'll get a 1080p MP4 back in roughly 30-60 seconds. All rendering happens server-side.

Worth noting: consistent intervals between source photos produce the smoothest playback result.

Matching Input to Actions

User prompts referencing lapse video maker, aspect ratio, text overlays, or audio tracks get routed to the corresponding action via keyword and intent classification.

User says... Action Skip SSE?
"export" / "导出" / "download" / "send me the video" → §3.5 Export
"credits" / "积分" / "balance" / "余额" → §3.3 Credits
"status" / "状态" / "show tracks" → §3.4 State
"upload" / "上传" / user sends file → §3.2 Upload
Everything else (generate, edit, add BGM…) → §3.1 SSE

Cloud Render Pipeline Details

Each export job queues on a cloud GPU node that composites video layers, applies platform-spec compression (H.264, up to 1080x1920), and returns a download URL within 30-90 seconds. The session token carries render job IDs, so closing the tab before completion orphans the job.

All calls go to https://mega-api-prod.nemovideo.ai. The main endpoints:

  1. SessionPOST /api/tasks/me/with-session/nemo_agent with {"task_name":"project","language":"\x3Clang>"}. Gives you a session_id.
  2. Chat (SSE)POST /run_sse with session_id and your message in new_message.parts[0].text. Set Accept: text/event-stream. Up to 15 min.
  3. UploadPOST /api/upload-video/nemo_agent/me/\x3Csid> — multipart file or JSON with URLs.
  4. CreditsGET /api/credits/balance/simple — returns available, frozen, total.
  5. StateGET /api/state/nemo_agent/me/\x3Csid>/latest — current draft and media info.
  6. ExportPOST /api/render/proxy/lambda with render ID and draft JSON. Poll GET /api/render/proxy/lambda/\x3Cid> every 30s for completed status and download URL.

Formats: mp4, mov, avi, webm, mkv, jpg, png, gif, webp, mp3, wav, m4a, aac.

Three attribution headers are required on every request and must match this file's frontmatter:

Header Value
X-Skill-Source lapse-video-maker
X-Skill-Version frontmatter version
X-Skill-Platform auto-detect: clawhub / cursor / unknown from install path

Every API call needs Authorization: Bearer \x3CNEMO_TOKEN> plus the three attribution headers above. If any header is missing, exports return 402.

Draft field mapping: t=tracks, tt=track type (0=video, 1=audio, 7=text), sg=segments, d=duration(ms), m=metadata.

Timeline (3 tracks): 1. Video: city timelapse (0-10s) 2. BGM: Lo-fi (0-10s, 35%) 3. Title: "Urban Dreams" (0-3s)

Translating GUI Instructions

The backend responds as if there's a visual interface. Map its instructions to API calls:

  • "click" or "点击" → execute the action via the relevant endpoint
  • "open" or "打开" → query session state to get the data
  • "drag/drop" or "拖拽" → send the edit command through SSE
  • "preview in timeline" → show a text summary of current tracks
  • "Export" or "导出" → run the export workflow

Reading the SSE Stream

Text events go straight to the user (after GUI translation). Tool calls stay internal. Heartbeats and empty data: lines mean the backend is still working — show "⏳ Still working..." every 2 minutes.

About 30% of edit operations close the stream without any text. When that happens, poll /api/state to confirm the timeline changed, then tell the user what was updated.

Error Handling

Code Meaning Action
0 Success Continue
1001 Bad/expired token Re-auth via anonymous-token (tokens expire after 7 days)
1002 Session not found New session §3.0
2001 No credits Anonymous: show registration URL with ?bind=\x3Cid> (get \x3Cid> from create-session or state response when needed). Registered: "Top up credits in your account"
4001 Unsupported file Show supported formats
4002 File too large Suggest compress/trim
400 Missing X-Client-Id Generate Client-Id and retry (see §1)
402 Free plan export blocked Subscription tier issue, NOT credits. "Register or upgrade your plan to unlock export."
429 Rate limit (1 token/client/7 days) Retry in 30s once

Common Workflows

Quick edit: Upload → "turn my 150 landscape photos into a smooth 30-second time-lapse video" → Download MP4. Takes 30-60 seconds for a 30-second clip.

Batch style: Upload multiple files in one session. Process them one by one with different instructions. Each gets its own render.

Iterative: Start with a rough cut, preview the result, then refine. The session keeps your timeline state so you can keep tweaking.

Tips and Tricks

The backend processes faster when you're specific. Instead of "make it look better", try "turn my 150 landscape photos into a smooth 30-second time-lapse video" — concrete instructions get better results.

Max file size is 500MB. Stick to JPG, PNG, MP4, MOV for the smoothest experience.

Export as MP4 for widest compatibility across social platforms and devices.

Usage Guidance
This skill will upload your files to mega-api-prod.nemovideo.ai and either use an existing NEMO_TOKEN or obtain a short‑lived anonymous token for you. Before installing, confirm you are comfortable sending your media to that domain and review its privacy/terms (the skill source is unknown). If you prefer not to allow automatic token creation, set NEMO_TOKEN yourself so the skill uses your account explicitly. Note the minor metadata mismatches (declared required env and config path vs. behavior described in SKILL.md); these are not necessarily malicious but worth asking the publisher to clarify. Avoid uploading sensitive content until you verify the service and consider revoking any anonymous tokens after use.
Capability Analysis
Type: OpenClaw Skill Name: lapse-video-maker Version: 1.0.0 The lapse-video-maker skill is a legitimate integration for a cloud-based video processing service hosted at nemovideo.ai. The SKILL.md file provides detailed instructions for the AI agent to manage sessions, acquire API tokens, and handle file uploads for remote GPU rendering. All network activity is directed to the stated backend (mega-api-prod.nemovideo.ai), and the requested permissions (NEMO_TOKEN and ~/.config/nemovideo/) are consistent with the skill's functionality. No evidence of malicious intent, data exfiltration, or unauthorized system access was found.
Capability Assessment
Purpose & Capability
The skill's name/description (creating time‑lapse videos) matches the instructions (upload images, create session, export MP4). Minor inconsistency: metadata declares NEMO_TOKEN as required, but the SKILL.md also describes obtaining an anonymous token from the backend if no env var is present — so NEMO_TOKEN is not strictly necessary for functionality.
Instruction Scope
All runtime instructions are scoped to uploading media, creating a session, streaming SSE edits, polling export status, and returning a download URL. The skill does not instruct reading unrelated system files or secrets. It will make network calls to mega-api-prod.nemovideo.ai and expects to transmit user media to that service.
Install Mechanism
No install spec and no code files — instruction-only skill. This minimizes on-disk risk because nothing is downloaded or installed by the skill itself.
Credentials
Only one credential (NEMO_TOKEN) is requested, which is proportionate for a hosted rendering API. Metadata also lists a config path (~/.config/nemovideo/), but the instructions do not clearly state reading or writing that path — this mismatch is worth noting before granting filesystem access.
Persistence & Privilege
The skill is not marked always:true and does not request elevated or persistent platform privileges. It can be invoked autonomously (default), which is normal for skills, but that increases the effect of its network calls if enabled.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install lapse-video-maker
  3. After installation, invoke the skill by name or use /lapse-video-maker
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
- Initial release of Lapse Video Maker skill. - Converts photo sequences (JPG, PNG, MP4, MOV, up to 500MB) into smooth 1080p MP4 time-lapse videos via cloud. - Automatic backend setup: establishes token and session for every user, with clear status notifications. - Supports fast workflows for upload, preview, timeline edits, and export—no advanced software needed. - Built-in smart error handling and seamless re-authentication or troubleshooting for common issues. - Designed for photographers and content creators needing rapid, high-quality time-lapse video creation.
Metadata
Slug lapse-video-maker
Version 1.0.0
License MIT-0
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is Lapse Video Maker?

Get time-lapse MP4 ready to post, without touching a single slider. Upload your sequential images (JPG, PNG, MP4, MOV, up to 500MB), say something like "turn... It is an AI Agent Skill for Claude Code / OpenClaw, with 68 downloads so far.

How do I install Lapse Video Maker?

Run "/install lapse-video-maker" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Lapse Video Maker free?

Yes, Lapse Video Maker is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does Lapse Video Maker support?

Lapse Video Maker is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Lapse Video Maker?

It is built and maintained by dsewell-583h0 (@dsewell-583h0); the current version is v1.0.0.

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