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Subtitle Assistant
by
whitejohnk-26
· GitHub ↗
· v1.0.0
· MIT-0
86
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0
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1
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Install in OpenClaw
/install subtitle-assistant
Description
Get captioned videos ready to post, without touching a single slider. Upload your video files (MP4, MOV, AVI, WebM, up to 500MB), say something like "add sub...
Usage Guidance
This skill uploads your video files and interacts with an external service at mega-api-prod.nemovideo.ai. It will use NEMO_TOKEN from the environment or obtain an anonymous token by calling the service (network call). Before installing, confirm you trust that external service and are comfortable uploading the videos and any contained audio/transcript data. If you have sensitive content, avoid using anonymous tokens or revoke tokens after use. Note the YAML metadata lists a config path (~/.config/nemovideo/) even though the instructions don't read it — ensure your platform does not expose other local secrets via that path. If you need stronger assurances, ask the skill author for a privacy policy, data retention details, or an option that runs locally instead of sending files to the cloud.
Capability Analysis
Type: OpenClaw Skill
Name: subtitle-assistant
Version: 1.0.0
The subtitle-assistant skill is a legitimate tool designed to automate video captioning and editing via the nemovideo.ai cloud API. It manages authentication through the NEMO_TOKEN environment variable or an anonymous token acquisition process, and it handles file uploads, session state management, and video rendering. The instructions in SKILL.md are strictly focused on task execution and error handling, with no evidence of data exfiltration, malicious command execution, or unauthorized access to sensitive local information.
Capability Assessment
Purpose & Capability
The skill declares and uses a single credential (NEMO_TOKEN) for the nemo video API and all runtime steps reference that API. Requiring a token is coherent with a cloud subtitle/render service. Minor note: the frontmatter lists a config path (~/.config/nemovideo/) but the runtime instructions do not reference reading that path — this is a small metadata mismatch, not a functional inconsistency.
Instruction Scope
SKILL.md confines actions to contacting the nemo backend (auth, session creation, SSE, upload, export, state, credits). It instructs the agent how to obtain an anonymous token only for the service if NEMO_TOKEN isn't present. The instructions do not ask the agent to read unrelated files, other credentials, or exfiltrate data to unexpected endpoints.
Install Mechanism
No install steps or code are present (instruction-only skill). No downloads, package installs, or archive extraction are requested.
Credentials
Only one environment variable (NEMO_TOKEN) is required and it directly maps to the described cloud API. No additional unrelated secrets or credentials are requested. The only minor surprise is the declared configPaths metadata which could allow platform access to ~/.config/nemovideo/, but SKILL.md does not use it.
Persistence & Privilege
The skill is not force-enabled (always:false) and does not request elevated or permanent system privileges. It does not instruct changes to other skills or system-wide configs.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install subtitle-assistant - After installation, invoke the skill by name or use
/subtitle-assistant - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
- Initial release of Subtitle Assistant.
- Generate and embed accurate subtitles in multiple languages for uploaded video files (up to 500MB).
- Automated onboarding: connects via API, using your NEMO_TOKEN or an anonymous free trial token.
- Simple workflow: upload your video, specify subtitle languages, and export to 1080p MP4 in under a minute for short clips.
- Supports a wide range of formats and cloud-based rendering with job/session tracking.
- Error handling for expired tokens, file issues, and plan limitations is built-in for a smooth experience.
Metadata
Frequently Asked Questions
What is Subtitle Assistant?
Get captioned videos ready to post, without touching a single slider. Upload your video files (MP4, MOV, AVI, WebM, up to 500MB), say something like "add sub... It is an AI Agent Skill for Claude Code / OpenClaw, with 86 downloads so far.
How do I install Subtitle Assistant?
Run "/install subtitle-assistant" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Subtitle Assistant free?
Yes, Subtitle Assistant is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Subtitle Assistant support?
Subtitle Assistant is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Subtitle Assistant?
It is built and maintained by whitejohnk-26 (@whitejohnk-26); the current version is v1.0.0.
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