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.
npx agentmods add skills/trtmn/agent-plugins/video-extractnpx skills add trtmn/agent-plugins --skill video-extractgit clone --depth 1 https://github.com/trtmn/agent-pluginsWhat 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 | $0.00170 | $0.00477 |
| Opus 5 | $0.00085 | $0.00238 |
| Sonnet 5 | $0.00034 | $0.00095 |
| Haiku 4.5 | $0.00017 | $0.00048 |
Grade A, and why
video-extract 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.
What it actually says
Video Extract
Extract and download videos from any URL using the video-extractor agent.
Usage
/video-extract <URL>
What it does
- Launches the
video-extractoragent with the provided URL - The agent downloads the video to
/tmpin the best available quality - SCPs the file to the Jellyfin server (configured via 1Password)
- Triggers a Jellyfin library rescan so the video appears immediately
- Cleans up the local temp file
Instructions
When this skill is invoked, delegate immediately to the video-extractor agent (subagent_type: "video-extractor") with run_in_background: true. Always run the agent in the background so the user can continue working while the download and transfer happen. Pass along the URL from the user's arguments and any additional context (e.g., which Jellyfin directory to use).
If no URL is provided in the arguments, immediately respond with: "Usage: /video-extract <URL>" and stop. Do not launch the agent without a URL.
Default behavior is to send the video to Jellyfin's YouTube directory. If the user specifies a different destination (Movies, TV Shows, etc.), pass that along to the agent.
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 · 45 lines · 170 tokens per session scan A ebe785dbe7d1
video-extract is a skill published in the GitHub repository trtmn/agent-plugins (2 stars, last pushed 5d ago), licensed Unlicense. It adds 170 tokens to every session and 477 once invoked, about $0.0009 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 2026-08-31.
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