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 commands/alphaaiservice/cortex/gen-demo-videogit clone --depth 1 https://github.com/alphaaiservice/cortexWrote 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.
[](https://agentmods.dev/commands/alphaaiservice/cortex/gen-demo-video)<a href="https://agentmods.dev/commands/alphaaiservice/cortex/gen-demo-video"><img src="https://agentmods.dev/badge/commands/alphaaiservice/cortex/gen-demo-video.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00131 | $0.01732 |
| Opus 5 | $0.00066 | $0.00866 |
| Sonnet 5 | $0.00026 | $0.00346 |
| Haiku 4.5 | $0.00013 | $0.00173 |
Grade A, and why
gen-demo-video 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Demo / Marketing Video Generator — Template or Code
Produce a branded, re-renderable product video. The video-producer skill auto-loads and defines the pipeline + quality bar. Two engines:
- HyperFrames (default) — open-source HTML-template → MP4 CLI; best for high-quality branded templated video. Proven in your FrameCraft product.
- Remotion — React/TypeScript; best for code-driven animation. Productizes the
voicemint/marketing-videoworkflow.
$ARGUMENTS = PRD path, product/idea text, or empty (infer from the current project).
Section 0: Input & Context
0a. Parse input & flags
- File path → PRD. Free text → brief. Empty → scan project (
PRD.md,README.md,BRAND_GUIDE.md,mockups/). - Flags:
--engine=hyperframes|remotion(default hyperframes),--length=(default 60s),--style=marketing|demo|explainer|launch(default marketing),--aspect=16:9|9:16(default 16:9; 9:16 for social),--quality=draft|standard|high(HyperFrames; default high),--fps=24|30|60(default 30),--voice=on|off(default on),--music=on|off(default off).
0b. Gather assets (reuse)
BRAND_GUIDE.md→ logo, OKLCH colors, fonts (@remotion/google-fonts).mockups/screenshots (from/gen-mockup) → product B-roll. If none and the video is a demo, suggest running/gen-mockupfirst or fall back to animated UI built in Remotion.- Existing
voicemint/marketing-videois the reference implementation for structure.
Section 1: Script & Storyboard (FIRST)
1a. Write the script
Tight spoken script for the target length. Structure by style:
- marketing: hook (3s) → problem → solution → 2–3 key features → CTA.
- demo: intro → walk through the core flow screen-by-screen → outro/CTA.
- explainer: question → concept → how-it-works → payoff.
- launch: tease → reveal → what's new → availability/CTA.
1b. Storyboard → src/data/script.ts
Break into 5–9 scenes; for each: visual, on-screen text, duration (frames @ 30fps), voiceover line. This data file is the single edit point for copy/timing. Confirm the scene outline to the user in one line before scaffolding.
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.
- 4d ago First seen · 93 lines · 131 tokens per session scan A 790528434745
gen-demo-video is a command published in the GitHub repository alphaaiservice/cortex (1 stars, last pushed 29d ago), licensed MIT. It adds 131 tokens to every session and 1,732 once invoked, about $0.0007 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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