yc-video

yc-video is a skill for Claude Code, Codex from floomhq/moto. It costs 88 tokens per session (2,820 once invoked), scanned A, original, MIT.

A guide for planning, reviewing, and scoring startup launch videos for social platforms. It explains how to structure short videos for viewers who may not know the product and for autoplay without sound.

In plain words
What is it for?
Use it to plan launch teasers, evaluate existing videos, and audit product videos for LinkedIn, X, YouTube, or Product Hunt.
Why use it?
It helps reveal whether a video communicates its problem and product quickly enough to hold the attention of a cold audience. It also provides a way to check narrative flow, format, duration, and captions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to plan launch teasers, evaluate existing videos, and audit product videos for LinkedIn, X, YouTube, or Product Hunt.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/floomhq/moto/yc-video
View source ↗ floomhq/moto
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 floomhq/moto --skill yc-video
Clone the repo
git clone --depth 1 https://github.com/floomhq/moto

Made for: Claude Code, Codex.

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.

agentmods badge for yc-video

README.md
[![agentmods](https://agentmods.dev/badge/skills/floomhq/moto/yc-video/github.svg)](https://agentmods.dev/skills/floomhq/moto/yc-video)
Your own site
<a href="https://agentmods.dev/skills/floomhq/moto/yc-video"><img src="https://agentmods.dev/badge/skills/floomhq/moto/yc-video/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.

agentmods 80×15 button for yc-video

Your own site · 80×15
<a href="https://agentmods.dev/skills/floomhq/moto/yc-video"><img src="https://agentmods.dev/badge/skills/floomhq/moto/yc-video.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,820 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.02820
Opus 5 $0.00044 $0.01410
Sonnet 5 $0.00018 $0.00564
Haiku 4.5 $0.00009 $0.00282

Measured 6d ago against content hash 44d0de7aed9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

yc-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 6d 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.

claude/skills/yc-video/SKILL.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

YC Video Skill

Plan, build, audit, and score startup launch videos that convert cold social feeds.

Three Modes

Mode When Command
Plan Starting a new video /yc-video plan
Score Evaluating an existing video /yc-video score <path>
Audit Deep qualitative review /yc-video audit <path>

Mode 1: Plan

Step 1: Define the constraints

Collect from user or infer:

  • Duration: 15s (teaser), 30s (explainer), 60s (demo)
  • Format: Square (1080x1080, LinkedIn/X autoplay) or Wide (1920x1080, YouTube/X)
  • Audio: Muted-first (captions carry the story) or VO-driven
  • Platform: LinkedIn, X, YouTube, Product Hunt
  • Audience temperature: Cold (never heard of you) or Warm (waitlist, followers)

Step 2: Apply the 3-Act Structure

Every YC-grade launch video follows this arc:

ACT 1: PAIN (0-3s)
  Statement of a problem the VIEWER has felt.
  Not your metric. Not your product. Their frustration.
  Must work in silent autoplay (text on screen).

ACT 2: BRIDGE + FLOW (3-10s)
  "What if..." or "So I built..." transition.
  One continuous product demonstration.
  NOT feature list. One fluid action: input -> magic -> output.
  The product is the hero. Show, don't tell.

ACT 3: PROOF + CLOSE (10-15s)
  Social proof, metric, or "aha" reveal.
  Logo + CTA + URL.
  This is where your impressive number lives (not second 1).

Step 3: Write the shot list

For each second, define:

  • Visual (what's on screen)
  • Text overlay (what the muted viewer reads)
  • VO line (if applicable)
  • Animation (entry, emphasis, exit)

Use this format:

| Time | Visual | Caption | VO | Animation |
|------|--------|---------|----|-----------|
| 0-1s | Dark bg, pain text | "You apply to 50 jobs." | -- | Fade from black, type-on |
| 1-3s | Pain continued | "Hear back from 2." | -- | Beat pause, then type |
| 3-4s | Product appears | "What if jobs found you?" | "What if..." | Slide up from bottom |

Read the full file on GitHub · 282 lines

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.

  1. 6d ago First seen · 282 lines · 88 tokens per session scan A 44d0de7aed9e

Subscribe to this mod's changes

yc-video is a skill published in the GitHub repository floomhq/moto (32 stars, last pushed 3mo ago), licensed MIT. It adds 88 tokens to every session and 2,820 once invoked, about $0.0004 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 2026-09-03.

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